src/hotspot/share/runtime/deoptimization.cpp
author stefank
Thu, 09 May 2019 14:28:30 +0200
changeset 54786 ebf733a324d4
parent 54723 1abca1170080
child 54825 1b03400e5a8f
permissions -rw-r--r--
8223624: Cleanup includes of universe.hpp Reviewed-by: coleenp, lkorinth
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/*
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 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "jvm.h"
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#include "classfile/symbolTable.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "code/codeCache.hpp"
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#include "code/debugInfoRec.hpp"
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#include "code/nmethod.hpp"
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#include "code/pcDesc.hpp"
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#include "code/scopeDesc.hpp"
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#include "interpreter/bytecode.hpp"
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#include "interpreter/interpreter.hpp"
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#include "interpreter/oopMapCache.hpp"
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#include "memory/allocation.inline.hpp"
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#include "memory/oopFactory.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/constantPool.hpp"
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#include "oops/method.hpp"
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#include "oops/objArrayKlass.hpp"
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#include "oops/objArrayOop.inline.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/fieldStreams.hpp"
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#include "oops/typeArrayOop.inline.hpp"
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#include "oops/verifyOopClosure.hpp"
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#include "prims/jvmtiThreadState.hpp"
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#include "runtime/biasedLocking.hpp"
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#include "runtime/compilationPolicy.hpp"
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#include "runtime/deoptimization.hpp"
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#include "runtime/frame.inline.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/interfaceSupport.inline.hpp"
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#include "runtime/safepointVerifiers.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "runtime/signature.hpp"
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#include "runtime/stubRoutines.hpp"
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#include "runtime/thread.hpp"
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#include "runtime/threadSMR.hpp"
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#include "runtime/vframe.hpp"
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#include "runtime/vframeArray.hpp"
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#include "runtime/vframe_hp.hpp"
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#include "utilities/events.hpp"
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#include "utilities/preserveException.hpp"
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#include "utilities/xmlstream.hpp"
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bool DeoptimizationMarker::_is_active = false;
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Deoptimization::UnrollBlock::UnrollBlock(int  size_of_deoptimized_frame,
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                                         int  caller_adjustment,
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                                         int  caller_actual_parameters,
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                                         int  number_of_frames,
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                                         intptr_t* frame_sizes,
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                                         address* frame_pcs,
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                                         BasicType return_type,
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                                         int exec_mode) {
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  _size_of_deoptimized_frame = size_of_deoptimized_frame;
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  _caller_adjustment         = caller_adjustment;
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  _caller_actual_parameters  = caller_actual_parameters;
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  _number_of_frames          = number_of_frames;
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  _frame_sizes               = frame_sizes;
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  _frame_pcs                 = frame_pcs;
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  _register_block            = NEW_C_HEAP_ARRAY(intptr_t, RegisterMap::reg_count * 2, mtCompiler);
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  _return_type               = return_type;
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  _initial_info              = 0;
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  // PD (x86 only)
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  _counter_temp              = 0;
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  _unpack_kind               = exec_mode;
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  _sender_sp_temp            = 0;
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  _total_frame_sizes         = size_of_frames();
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  assert(exec_mode >= 0 && exec_mode < Unpack_LIMIT, "Unexpected exec_mode");
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}
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Deoptimization::UnrollBlock::~UnrollBlock() {
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  FREE_C_HEAP_ARRAY(intptr_t, _frame_sizes);
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  FREE_C_HEAP_ARRAY(intptr_t, _frame_pcs);
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  FREE_C_HEAP_ARRAY(intptr_t, _register_block);
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}
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intptr_t* Deoptimization::UnrollBlock::value_addr_at(int register_number) const {
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  assert(register_number < RegisterMap::reg_count, "checking register number");
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  return &_register_block[register_number * 2];
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}
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int Deoptimization::UnrollBlock::size_of_frames() const {
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  // Acount first for the adjustment of the initial frame
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  int result = _caller_adjustment;
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  for (int index = 0; index < number_of_frames(); index++) {
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    result += frame_sizes()[index];
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  }
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  return result;
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}
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void Deoptimization::UnrollBlock::print() {
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  ttyLocker ttyl;
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  tty->print_cr("UnrollBlock");
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  tty->print_cr("  size_of_deoptimized_frame = %d", _size_of_deoptimized_frame);
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  tty->print(   "  frame_sizes: ");
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  for (int index = 0; index < number_of_frames(); index++) {
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    tty->print(INTX_FORMAT " ", frame_sizes()[index]);
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  }
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  tty->cr();
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}
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// In order to make fetch_unroll_info work properly with escape
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// analysis, The method was changed from JRT_LEAF to JRT_BLOCK_ENTRY and
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// ResetNoHandleMark and HandleMark were removed from it. The actual reallocation
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// of previously eliminated objects occurs in realloc_objects, which is
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// called from the method fetch_unroll_info_helper below.
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JRT_BLOCK_ENTRY(Deoptimization::UnrollBlock*, Deoptimization::fetch_unroll_info(JavaThread* thread, int exec_mode))
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  // It is actually ok to allocate handles in a leaf method. It causes no safepoints,
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  // but makes the entry a little slower. There is however a little dance we have to
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  // do in debug mode to get around the NoHandleMark code in the JRT_LEAF macro
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  // fetch_unroll_info() is called at the beginning of the deoptimization
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  // handler. Note this fact before we start generating temporary frames
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  // that can confuse an asynchronous stack walker. This counter is
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  // decremented at the end of unpack_frames().
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  if (TraceDeoptimization) {
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    tty->print_cr("Deoptimizing thread " INTPTR_FORMAT, p2i(thread));
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  }
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  thread->inc_in_deopt_handler();
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  return fetch_unroll_info_helper(thread, exec_mode);
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JRT_END
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// This is factored, since it is both called from a JRT_LEAF (deoptimization) and a JRT_ENTRY (uncommon_trap)
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Deoptimization::UnrollBlock* Deoptimization::fetch_unroll_info_helper(JavaThread* thread, int exec_mode) {
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  // Note: there is a safepoint safety issue here. No matter whether we enter
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  // via vanilla deopt or uncommon trap we MUST NOT stop at a safepoint once
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  // the vframeArray is created.
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  //
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  // Allocate our special deoptimization ResourceMark
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  DeoptResourceMark* dmark = new DeoptResourceMark(thread);
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  assert(thread->deopt_mark() == NULL, "Pending deopt!");
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  thread->set_deopt_mark(dmark);
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  frame stub_frame = thread->last_frame(); // Makes stack walkable as side effect
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  RegisterMap map(thread, true);
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  RegisterMap dummy_map(thread, false);
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  // Now get the deoptee with a valid map
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  frame deoptee = stub_frame.sender(&map);
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  // Set the deoptee nmethod
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  assert(thread->deopt_compiled_method() == NULL, "Pending deopt!");
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  CompiledMethod* cm = deoptee.cb()->as_compiled_method_or_null();
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  thread->set_deopt_compiled_method(cm);
1
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  if (VerifyStack) {
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    thread->validate_frame_layout();
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  }
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1
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  // Create a growable array of VFrames where each VFrame represents an inlined
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  // Java frame.  This storage is allocated with the usual system arena.
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  assert(deoptee.is_compiled_frame(), "Wrong frame type");
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  GrowableArray<compiledVFrame*>* chunk = new GrowableArray<compiledVFrame*>(10);
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  vframe* vf = vframe::new_vframe(&deoptee, &map, thread);
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  while (!vf->is_top()) {
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    assert(vf->is_compiled_frame(), "Wrong frame type");
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    chunk->push(compiledVFrame::cast(vf));
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    vf = vf->sender();
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  }
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  assert(vf->is_compiled_frame(), "Wrong frame type");
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  chunk->push(compiledVFrame::cast(vf));
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  bool realloc_failures = false;
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#if COMPILER2_OR_JVMCI
1
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  // Reallocate the non-escaping objects and restore their fields. Then
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  // relock objects if synchronization on them was eliminated.
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#if !INCLUDE_JVMCI
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  if (DoEscapeAnalysis || EliminateNestedLocks) {
217
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    if (EliminateAllocations) {
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#endif // INCLUDE_JVMCI
256
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      assert (chunk->at(0)->scope() != NULL,"expect only compiled java frames");
217
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      GrowableArray<ScopeValue*>* objects = chunk->at(0)->scope()->objects();
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      // The flag return_oop() indicates call sites which return oop
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      // in compiled code. Such sites include java method calls,
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      // runtime calls (for example, used to allocate new objects/arrays
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      // on slow code path) and any other calls generated in compiled code.
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      // It is not guaranteed that we can get such information here only
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      // by analyzing bytecode in deoptimized frames. This is why this flag
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      // is set during method compilation (see Compile::Process_OopMap_Node()).
43931
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thartmann
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   216
      // If the previous frame was popped or if we are dispatching an exception,
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thartmann
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   217
      // we don't have an oop result.
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   218
      bool save_oop_result = chunk->at(0)->scope()->return_oop() && !thread->popframe_forcing_deopt_reexecution() && (exec_mode == Unpack_deopt);
4894
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      Handle return_value;
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   220
      if (save_oop_result) {
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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        // Reallocation may trigger GC. If deoptimization happened on return from
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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   222
        // call which returns oop we need to save it since it is not in oopmap.
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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        oop result = deoptee.saved_oop_result(&map);
46968
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        assert(oopDesc::is_oop_or_null(result), "must be oop");
4894
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        return_value = Handle(thread, result);
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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   226
        assert(Universe::heap()->is_in_or_null(result), "must be heap pointer");
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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   227
        if (TraceDeoptimization) {
13964
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vlivanov
parents: 13728
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   228
          ttyLocker ttyl;
33148
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   229
          tty->print_cr("SAVED OOP RESULT " INTPTR_FORMAT " in thread " INTPTR_FORMAT, p2i(result), p2i(thread));
4894
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   230
        }
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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diff changeset
   231
      }
217
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   232
      if (objects != NULL) {
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   233
        JRT_BLOCK
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   234
          realloc_failures = realloc_objects(thread, &deoptee, objects, THREAD);
217
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   235
        JRT_END
42040
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   236
        bool skip_internal = (cm != NULL) && !cm->is_compiled_by_jvmci();
33160
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   237
        reassign_fields(&deoptee, &map, objects, realloc_failures, skip_internal);
28047
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roland
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   238
#ifndef PRODUCT
c0e7a15c458f 8067144: SIGSEGV with +TraceDeoptimization in Deoptimization::print_objects
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   239
        if (TraceDeoptimization) {
c0e7a15c458f 8067144: SIGSEGV with +TraceDeoptimization in Deoptimization::print_objects
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   240
          ttyLocker ttyl;
33148
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diff changeset
   241
          tty->print_cr("REALLOC OBJECTS in thread " INTPTR_FORMAT, p2i(thread));
28047
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roland
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   242
          print_objects(objects, realloc_failures);
c0e7a15c458f 8067144: SIGSEGV with +TraceDeoptimization in Deoptimization::print_objects
roland
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diff changeset
   243
        }
c0e7a15c458f 8067144: SIGSEGV with +TraceDeoptimization in Deoptimization::print_objects
roland
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diff changeset
   244
#endif
1
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   245
      }
4894
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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diff changeset
   246
      if (save_oop_result) {
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
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   247
        // Restore result.
8a76fd3d098d 6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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   248
        deoptee.set_saved_oop_result(&map, return_value());
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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   249
      }
49972
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   250
#if !INCLUDE_JVMCI
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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   251
    }
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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   252
    if (EliminateLocks) {
33160
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   253
#endif // INCLUDE_JVMCI
256
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
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diff changeset
   254
#ifndef PRODUCT
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
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   255
      bool first = true;
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
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diff changeset
   256
#endif
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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   257
      for (int i = 0; i < chunk->length(); i++) {
256
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
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diff changeset
   258
        compiledVFrame* cvf = chunk->at(i);
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
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diff changeset
   259
        assert (cvf->scope() != NULL,"expect only compiled java frames");
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
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   260
        GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
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diff changeset
   261
        if (monitors->is_nonempty()) {
28039
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roland
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   262
          relock_objects(monitors, thread, realloc_failures);
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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   263
#ifndef PRODUCT
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
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   264
          if (PrintDeoptimizationDetails) {
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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   265
            ttyLocker ttyl;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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   266
            for (int j = 0; j < monitors->length(); j++) {
256
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
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diff changeset
   267
              MonitorInfo* mi = monitors->at(j);
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
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diff changeset
   268
              if (mi->eliminated()) {
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
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diff changeset
   269
                if (first) {
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
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diff changeset
   270
                  first = false;
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
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   271
                  tty->print_cr("RELOCK OBJECTS in thread " INTPTR_FORMAT, p2i(thread));
256
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
parents: 217
diff changeset
   272
                }
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
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diff changeset
   273
                if (mi->owner_is_scalar_replaced()) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
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diff changeset
   274
                  Klass* k = java_lang_Class::as_Klass(mi->owner_klass());
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
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diff changeset
   275
                  tty->print_cr("     failed reallocation for klass %s", k->external_name());
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
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diff changeset
   276
                } else {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
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   277
                  tty->print_cr("     object <" INTPTR_FORMAT "> locked", p2i(mi->owner()));
28039
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roland
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diff changeset
   278
                }
217
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diff changeset
   279
              }
1
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   280
            }
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   281
          }
33160
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   282
#endif // !PRODUCT
1
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   283
        }
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   284
      }
49972
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kvn
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   285
#if !INCLUDE_JVMCI
1
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   286
    }
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   287
  }
33160
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   288
#endif // INCLUDE_JVMCI
47799
1772ebf07d1f 8152470: Add COMPILER2_OR_JVMCI definition
jcm
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diff changeset
   289
#endif // COMPILER2_OR_JVMCI
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
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diff changeset
   290
44632
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
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   291
  ScopeDesc* trap_scope = chunk->at(0)->scope();
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never
parents: 43942
diff changeset
   292
  Handle exceptionObject;
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   293
  if (trap_scope->rethrow_exception()) {
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   294
    if (PrintDeoptimizationDetails) {
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   295
      tty->print_cr("Exception to be rethrown in the interpreter for method %s::%s at bci %d", trap_scope->method()->method_holder()->name()->as_C_string(), trap_scope->method()->name()->as_C_string(), trap_scope->bci());
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   296
    }
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   297
    GrowableArray<ScopeValue*>* expressions = trap_scope->expressions();
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   298
    guarantee(expressions != NULL && expressions->length() > 0, "must have exception to throw");
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   299
    ScopeValue* topOfStack = expressions->top();
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
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parents: 43942
diff changeset
   300
    exceptionObject = StackValue::create_stack_value(&deoptee, &map, topOfStack)->get_obj();
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   301
    guarantee(exceptionObject() != NULL, "exception oop can not be null");
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   302
  }
1164efa943eb 8178119: [JVMCI] when rethrowing exceptions at deopt the exception must be fetched after materialization
never
parents: 43942
diff changeset
   303
1
489c9b5090e2 Initial load
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parents:
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   304
  // Ensure that no safepoint is taken after pointers have been stored
489c9b5090e2 Initial load
duke
parents:
diff changeset
   305
  // in fields of rematerialized objects.  If a safepoint occurs from here on
489c9b5090e2 Initial load
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parents:
diff changeset
   306
  // out the java state residing in the vframeArray will be missed.
35492
c8c0273e6b91 8146690: Make all classes in GC follow the naming convention.
david
parents: 35071
diff changeset
   307
  NoSafepointVerifier no_safepoint;
1
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parents:
diff changeset
   308
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   309
  vframeArray* array = create_vframeArray(thread, deoptee, &map, chunk, realloc_failures);
47799
1772ebf07d1f 8152470: Add COMPILER2_OR_JVMCI definition
jcm
parents: 47794
diff changeset
   310
#if COMPILER2_OR_JVMCI
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   311
  if (realloc_failures) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   312
    pop_frames_failed_reallocs(thread, array);
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   313
  }
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   314
#endif
1
489c9b5090e2 Initial load
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parents:
diff changeset
   315
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   316
  assert(thread->vframe_array_head() == NULL, "Pending deopt!");
1
489c9b5090e2 Initial load
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parents:
diff changeset
   317
  thread->set_vframe_array_head(array);
489c9b5090e2 Initial load
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parents:
diff changeset
   318
489c9b5090e2 Initial load
duke
parents:
diff changeset
   319
  // Now that the vframeArray has been created if we have any deferred local writes
489c9b5090e2 Initial load
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parents:
diff changeset
   320
  // added by jvmti then we can free up that structure as the data is now in the
489c9b5090e2 Initial load
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parents:
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   321
  // vframeArray
489c9b5090e2 Initial load
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parents:
diff changeset
   322
489c9b5090e2 Initial load
duke
parents:
diff changeset
   323
  if (thread->deferred_locals() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   324
    GrowableArray<jvmtiDeferredLocalVariableSet*>* list = thread->deferred_locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   325
    int i = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   326
    do {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   327
      // Because of inlining we could have multiple vframes for a single frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   328
      // and several of the vframes could have deferred writes. Find them all.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   329
      if (list->at(i)->id() == array->original().id()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   330
        jvmtiDeferredLocalVariableSet* dlv = list->at(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   331
        list->remove_at(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   332
        // individual jvmtiDeferredLocalVariableSet are CHeapObj's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   333
        delete dlv;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   334
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   335
        i++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   336
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   337
    } while ( i < list->length() );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   338
    if (list->length() == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   339
      thread->set_deferred_locals(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   340
      // free the list and elements back to C heap.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   341
      delete list;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   342
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   343
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
  }
489c9b5090e2 Initial load
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parents:
diff changeset
   345
489c9b5090e2 Initial load
duke
parents:
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   346
  // Compute the caller frame based on the sender sp of stub_frame and stored frame sizes info.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   347
  CodeBlob* cb = stub_frame.cb();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   348
  // Verify we have the right vframeArray
489c9b5090e2 Initial load
duke
parents:
diff changeset
   349
  assert(cb->frame_size() >= 0, "Unexpected frame size");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
  intptr_t* unpack_sp = stub_frame.sp() + cb->frame_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   352
  // If the deopt call site is a MethodHandle invoke call site we have
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   353
  // to adjust the unpack_sp.
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   354
  nmethod* deoptee_nm = deoptee.cb()->as_nmethod_or_null();
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   355
  if (deoptee_nm != NULL && deoptee_nm->is_method_handle_return(deoptee.pc()))
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   356
    unpack_sp = deoptee.unextended_sp();
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4749
diff changeset
   357
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   358
#ifdef ASSERT
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   359
  assert(cb->is_deoptimization_stub() ||
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   360
         cb->is_uncommon_trap_stub() ||
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   361
         strcmp("Stub<DeoptimizationStub.deoptimizationHandler>", cb->name()) == 0 ||
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   362
         strcmp("Stub<UncommonTrapStub.uncommonTrapHandler>", cb->name()) == 0,
33198
dlong
parents: 33148 33160
diff changeset
   363
         "unexpected code blob: %s", cb->name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   364
#endif
6187
4fa7845f7c14 6976186: integrate Shark HotSpot changes
twisti
parents: 5547
diff changeset
   365
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
  // This is a guarantee instead of an assert because if vframe doesn't match
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
  // we will unpack the wrong deoptimized frame and wind up in strange places
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
  // where it will be very difficult to figure out what went wrong. Better
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
  // to die an early death here than some very obscure death later when the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
  // trail is cold.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
  // Note: on ia64 this guarantee can be fooled by frames with no memory stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
  // in that it will fail to detect a problem when there is one. This needs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
  // more work in tiger timeframe.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
  guarantee(array->unextended_sp() == unpack_sp, "vframe_array_head must contain the vframeArray to unpack");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  int number_of_frames = array->frames();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
  // Compute the vframes' sizes.  Note that frame_sizes[] entries are ordered from outermost to innermost
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
  // virtual activation, which is the reverse of the elements in the vframes array.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 11636
diff changeset
   380
  intptr_t* frame_sizes = NEW_C_HEAP_ARRAY(intptr_t, number_of_frames, mtCompiler);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
  // +1 because we always have an interpreter return address for the final slot.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 11636
diff changeset
   382
  address* frame_pcs = NEW_C_HEAP_ARRAY(address, number_of_frames + 1, mtCompiler);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
  int popframe_extra_args = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
  // Create an interpreter return address for the stub to use as its return
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
  // address so the skeletal frames are perfectly walkable
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
  frame_pcs[number_of_frames] = Interpreter::deopt_entry(vtos, 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
  // PopFrame requires that the preserved incoming arguments from the recently-popped topmost
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
  // activation be put back on the expression stack of the caller for reexecution
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
  if (JvmtiExport::can_pop_frame() && thread->popframe_forcing_deopt_reexecution()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
    popframe_extra_args = in_words(thread->popframe_preserved_args_size_in_words());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
9636
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   394
  // Find the current pc for sender of the deoptee. Since the sender may have been deoptimized
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   395
  // itself since the deoptee vframeArray was created we must get a fresh value of the pc rather
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   396
  // than simply use array->sender.pc(). This requires us to walk the current set of frames
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   397
  //
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   398
  frame deopt_sender = stub_frame.sender(&dummy_map); // First is the deoptee frame
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   399
  deopt_sender = deopt_sender.sender(&dummy_map);     // Now deoptee caller
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   400
22551
9bf46d16dcc6 8025856: Fix typos in the GC code
jwilhelm
parents: 22241
diff changeset
   401
  // It's possible that the number of parameters at the call site is
9636
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   402
  // different than number of arguments in the callee when method
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   403
  // handles are used.  If the caller is interpreted get the real
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   404
  // value so that the proper amount of space can be added to it's
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   405
  // frame.
10966
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   406
  bool caller_was_method_handle = false;
9636
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   407
  if (deopt_sender.is_interpreted_frame()) {
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   408
    methodHandle method = deopt_sender.interpreter_frame_method();
10979
c25dd872c62f 7106774: JSR 292: nightly test inlineMHTarget fails with wrong result
twisti
parents: 10966
diff changeset
   409
    Bytecode_invoke cur = Bytecode_invoke_check(method, deopt_sender.interpreter_frame_bci());
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13195
diff changeset
   410
    if (cur.is_invokedynamic() || cur.is_invokehandle()) {
10966
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   411
      // Method handle invokes may involve fairly arbitrary chains of
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   412
      // calls so it's impossible to know how much actual space the
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   413
      // caller has for locals.
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   414
      caller_was_method_handle = true;
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   415
    }
9636
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   416
  }
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   417
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
  // frame_sizes/frame_pcs[0] oldest frame (int or c2i)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
  // frame_sizes/frame_pcs[1] next oldest frame (int)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
  // frame_sizes/frame_pcs[n] youngest frame (int)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
  // Now a pc in frame_pcs is actually the return address to the frame's caller (a frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
  // owns the space for the return address to it's caller).  Confusing ain't it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
  // The vframe array can address vframes with indices running from
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
  // 0.._frames-1. Index  0 is the youngest frame and _frame - 1 is the oldest (root) frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
  // When we create the skeletal frames we need the oldest frame to be in the zero slot
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
  // in the frame_sizes/frame_pcs so the assembly code can do a trivial walk.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
  // so things look a little strange in this loop.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
  //
10966
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   432
  int callee_parameters = 0;
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   433
  int callee_locals = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
  for (int index = 0; index < array->frames(); index++ ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
    // frame[number_of_frames - 1 ] = on_stack_size(youngest)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
    // frame[number_of_frames - 2 ] = on_stack_size(sender(youngest))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
    // frame[number_of_frames - 3 ] = on_stack_size(sender(sender(youngest)))
24018
77b156916bab 8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents: 23525
diff changeset
   438
    frame_sizes[number_of_frames - 1 - index] = BytesPerWord * array->element(index)->on_stack_size(callee_parameters,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
                                                                                                    callee_locals,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
                                                                                                    index == 0,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
                                                                                                    popframe_extra_args);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
    // This pc doesn't have to be perfect just good enough to identify the frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
    // as interpreted so the skeleton frame will be walkable
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
    // The correct pc will be set when the skeleton frame is completely filled out
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
    // The final pc we store in the loop is wrong and will be overwritten below
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
    frame_pcs[number_of_frames - 1 - index ] = Interpreter::deopt_entry(vtos, 0) - frame::pc_return_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
    callee_parameters = array->element(index)->method()->size_of_parameters();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
    callee_locals = array->element(index)->method()->max_locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
    popframe_extra_args = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
  // Compute whether the root vframe returns a float or double value.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
  BasicType return_type;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
    methodHandle method(thread, array->element(0)->method());
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
   457
    Bytecode_invoke invoke = Bytecode_invoke_check(method, array->element(0)->bci());
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   458
    return_type = invoke.is_valid() ? invoke.result_type() : T_ILLEGAL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
  // Compute information for handling adapters and adjusting the frame size of the caller.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
  int caller_adjustment = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
  // Compute the amount the oldest interpreter frame will have to adjust
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
  // its caller's stack by. If the caller is a compiled frame then
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
  // we pretend that the callee has no parameters so that the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
  // extension counts for the full amount of locals and not just
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
  // locals-parms. This is because without a c2i adapter the parm
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
  // area as created by the compiled frame will not be usable by
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  // the interpreter. (Depending on the calling convention there
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
  // may not even be enough space).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
  // QQQ I'd rather see this pushed down into last_frame_adjust
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  // and have it take the sender (aka caller).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
10966
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   476
  if (deopt_sender.is_compiled_frame() || caller_was_method_handle) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
    caller_adjustment = last_frame_adjust(0, callee_locals);
10966
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   478
  } else if (callee_locals > callee_parameters) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
    // The caller frame may need extending to accommodate
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
    // non-parameter locals of the first unpacked interpreted frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
    // Compute that adjustment.
10966
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   482
    caller_adjustment = last_frame_adjust(callee_parameters, callee_locals);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
  // If the sender is deoptimized the we must retrieve the address of the handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  // since the frame will "magically" show the original pc before the deopt
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  // and we'd undo the deopt.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
  frame_pcs[0] = deopt_sender.raw_pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  assert(CodeCache::find_blob_unsafe(frame_pcs[0]) != NULL, "bad pc");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
49972
37b2446d7f86 8202552: [AOT][JVMCI] Incorrect usage of INCLUDE_JVMCI and INCLUDE_AOT
kvn
parents: 49594
diff changeset
   493
#if INCLUDE_JVMCI
34173
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
   494
  if (exceptionObject() != NULL) {
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
   495
    thread->set_exception_oop(exceptionObject());
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
   496
    exec_mode = Unpack_exception;
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
   497
  }
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
   498
#endif
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
   499
39261
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   500
  if (thread->frames_to_pop_failed_realloc() > 0 && exec_mode != Unpack_uncommon_trap) {
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   501
    assert(thread->has_pending_exception(), "should have thrown OOME");
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   502
    thread->set_exception_oop(thread->pending_exception());
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   503
    thread->clear_pending_exception();
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   504
    exec_mode = Unpack_exception;
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   505
  }
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   506
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   507
#if INCLUDE_JVMCI
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   508
  if (thread->frames_to_pop_failed_realloc() > 0) {
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   509
    thread->set_pending_monitorenter(false);
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   510
  }
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   511
#endif
18f007610de6 8146416: java.lang.OutOfMemoryError triggers: assert(current_bci == 0) failed: bci isn't zero for do_not_unlock_if_synchronized
jcm
parents: 38242
diff changeset
   512
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
  UnrollBlock* info = new UnrollBlock(array->frame_size() * BytesPerWord,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
                                      caller_adjustment * BytesPerWord,
10966
0c9ed2dfc6a2 7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents: 10539
diff changeset
   515
                                      caller_was_method_handle ? 0 : callee_parameters,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
                                      number_of_frames,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
                                      frame_sizes,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
                                      frame_pcs,
34173
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
   519
                                      return_type,
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
   520
                                      exec_mode);
10539
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9636
diff changeset
   521
  // On some platforms, we need a way to pass some platform dependent
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9636
diff changeset
   522
  // information to the unpacking code so the skeletal frames come out
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9636
diff changeset
   523
  // correct (initial fp value, unextended sp, ...)
f87cedf7983c 7087445: Improve platform independence of JSR292 shared code
bdelsart
parents: 9636
diff changeset
   524
  info->set_initial_info((intptr_t) array->sender().initial_deoptimization_info());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  if (array->frames() > 1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
    if (VerifyStack && TraceDeoptimization) {
13964
01a2b863cc61 7177003: C1: LogCompilation support
vlivanov
parents: 13728
diff changeset
   528
      ttyLocker ttyl;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
      tty->print_cr("Deoptimizing method containing inlining");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  array->set_unroll_block(info);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
  return info;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
// Called to cleanup deoptimization data structures in normal case
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
// after unpacking to stack and when stack overflow error occurs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
void Deoptimization::cleanup_deopt_info(JavaThread *thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
                                        vframeArray *array) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
  // Get array if coming from exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
  if (array == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
    array = thread->vframe_array_head();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
  thread->set_vframe_array_head(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  // Free the previous UnrollBlock
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
  vframeArray* old_array = thread->vframe_array_last();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
  thread->set_vframe_array_last(array);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
  if (old_array != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
    UnrollBlock* old_info = old_array->unroll_block();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
    old_array->set_unroll_block(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
    delete old_info;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
    delete old_array;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
  // Deallocate any resource creating in this routine and any ResourceObjs allocated
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  // inside the vframeArray (StackValueCollections)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  delete thread->deopt_mark();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
  thread->set_deopt_mark(NULL);
38133
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 35499
diff changeset
   564
  thread->set_deopt_compiled_method(NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
  if (JvmtiExport::can_pop_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
#ifndef CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
    // Regardless of whether we entered this routine with the pending
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
    // popframe condition bit set, we should always clear it now
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
    thread->clear_popframe_condition();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
#else
22551
9bf46d16dcc6 8025856: Fix typos in the GC code
jwilhelm
parents: 22241
diff changeset
   573
    // C++ interpreter will clear has_pending_popframe when it enters
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
    // with method_resume. For deopt_resume2 we clear it now.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
    if (thread->popframe_forcing_deopt_reexecution())
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
        thread->clear_popframe_condition();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
#endif /* CC_INTERP */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  // unpack_frames() is called at the end of the deoptimization handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
  // and (in C2) at the end of the uncommon trap handler. Note this fact
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
  // so that an asynchronous stack walker can work again. This counter is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
  // incremented at the beginning of fetch_unroll_info() and (in C2) at
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
  // the beginning of uncommon_trap().
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  thread->dec_in_deopt_handler();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
34651
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   588
// Moved from cpu directories because none of the cpus has callee save values.
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   589
// If a cpu implements callee save values, move this to deoptimization_<cpu>.cpp.
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   590
void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) {
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   591
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   592
  // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   593
  // the days we had adapter frames. When we deoptimize a situation where a
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   594
  // compiled caller calls a compiled caller will have registers it expects
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   595
  // to survive the call to the callee. If we deoptimize the callee the only
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   596
  // way we can restore these registers is to have the oldest interpreter
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   597
  // frame that we create restore these values. That is what this routine
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   598
  // will accomplish.
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   599
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   600
  // At the moment we have modified c2 to not have any callee save registers
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   601
  // so this problem does not exist and this routine is just a place holder.
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   602
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   603
  assert(f->is_interpreted_frame(), "must be interpreted");
07b1cc0f6040 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions
coleenp
parents: 34185
diff changeset
   604
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
// Return BasicType of value being returned
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
JRT_LEAF(BasicType, Deoptimization::unpack_frames(JavaThread* thread, int exec_mode))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
49189
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   609
  // We are already active in the special DeoptResourceMark any ResourceObj's we
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
  // allocate will be freed at the end of the routine.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
  // It is actually ok to allocate handles in a leaf method. It causes no safepoints,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
  // but makes the entry a little slower. There is however a little dance we have to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
  // do in debug mode to get around the NoHandleMark code in the JRT_LEAF macro
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
  ResetNoHandleMark rnhm; // No-op in release/product versions
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
  HandleMark hm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  frame stub_frame = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  // Since the frame to unpack is the top frame of this thread, the vframe_array_head
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
  // must point to the vframeArray for the unpack frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  vframeArray* array = thread->vframe_array_head();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
  if (TraceDeoptimization) {
13964
01a2b863cc61 7177003: C1: LogCompilation support
vlivanov
parents: 13728
diff changeset
   626
    ttyLocker ttyl;
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
   627
    tty->print_cr("DEOPT UNPACKING thread " INTPTR_FORMAT " vframeArray " INTPTR_FORMAT " mode %d",
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
   628
                  p2i(thread), p2i(array), exec_mode);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
#endif
11636
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11445
diff changeset
   631
  Events::log(thread, "DEOPT UNPACKING pc=" INTPTR_FORMAT " sp=" INTPTR_FORMAT " mode %d",
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
   632
              p2i(stub_frame.pc()), p2i(stub_frame.sp()), exec_mode);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
  UnrollBlock* info = array->unroll_block();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
  // Unpack the interpreter frames and any adapter frame (c2 only) we might create.
9636
363ca5579aff 7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents: 9447
diff changeset
   637
  array->unpack_to_stack(stub_frame, exec_mode, info->caller_actual_parameters());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  BasicType bt = info->return_type();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
  // If we have an exception pending, claim that the return type is an oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
  // so the deopt_blob does not overwrite the exception_oop.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
  if (exec_mode == Unpack_exception)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
    bt = T_OBJECT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
  // Cleanup thread deopt data
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
  cleanup_deopt_info(thread, array);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
  if (VerifyStack) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
    ResourceMark res_mark;
49324
e6fbaf07192f 8198826: -XX:+VerifyStack fails with fatal error: ExceptionMark constructor expects no pending exceptions
thartmann
parents: 49189
diff changeset
   653
    // Clear pending exception to not break verification code (restored afterwards)
e6fbaf07192f 8198826: -XX:+VerifyStack fails with fatal error: ExceptionMark constructor expects no pending exceptions
thartmann
parents: 49189
diff changeset
   654
    PRESERVE_EXCEPTION_MARK;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
9437
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 8657
diff changeset
   656
    thread->validate_frame_layout();
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 8657
diff changeset
   657
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
    // Verify that the just-unpacked frames match the interpreter's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
    // notions of expression stack and locals
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
    vframeArray* cur_array = thread->vframe_array_last();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    RegisterMap rm(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
    rm.set_include_argument_oops(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
    bool is_top_frame = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
    int callee_size_of_parameters = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
    int callee_max_locals = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
    for (int i = 0; i < cur_array->frames(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
      vframeArrayElement* el = cur_array->element(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
      frame* iframe = el->iframe();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
      guarantee(iframe->is_interpreted_frame(), "Wrong frame type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
      // Get the oop map for this bci
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
      InterpreterOopMap mask;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
      int cur_invoke_parameter_size = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
      bool try_next_mask = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
      int next_mask_expression_stack_size = -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
      int top_frame_expression_stack_adjustment = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
      methodHandle mh(thread, iframe->interpreter_frame_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
      OopMapCache::compute_one_oop_map(mh, iframe->interpreter_frame_bci(), &mask);
54723
1abca1170080 8221542: ~15% performance degradation due to less optimized inline decision
jiefu
parents: 54669
diff changeset
   679
      BytecodeStream str(mh, iframe->interpreter_frame_bci());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
      int max_bci = mh->code_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
      // Get to the next bytecode if possible
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
      assert(str.bci() < max_bci, "bci in interpreter frame out of bounds");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
      // Check to see if we can grab the number of outgoing arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
      // at an uncommon trap for an invoke (where the compiler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
      // generates debug info before the invoke has executed)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
      Bytecodes::Code cur_code = str.next();
49189
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   687
      if (Bytecodes::is_invoke(cur_code)) {
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
   688
        Bytecode_invoke invoke(mh, iframe->interpreter_frame_bci());
49189
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   689
        cur_invoke_parameter_size = invoke.size_of_parameters();
17872
2c49e72dcf08 8009981: nashorn tests fail with -XX:+VerifyStack
roland
parents: 15943
diff changeset
   690
        if (i != 0 && !invoke.is_invokedynamic() && MethodHandles::has_member_arg(invoke.klass(), invoke.name())) {
2c49e72dcf08 8009981: nashorn tests fail with -XX:+VerifyStack
roland
parents: 15943
diff changeset
   691
          callee_size_of_parameters++;
2c49e72dcf08 8009981: nashorn tests fail with -XX:+VerifyStack
roland
parents: 15943
diff changeset
   692
        }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
      if (str.bci() < max_bci) {
49189
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   695
        Bytecodes::Code next_code = str.next();
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   696
        if (next_code >= 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
          // The interpreter oop map generator reports results before
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
          // the current bytecode has executed except in the case of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
          // calls. It seems to be hard to tell whether the compiler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
          // has emitted debug information matching the "state before"
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
          // a given bytecode or the state after, so we try both
49189
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   702
          if (!Bytecodes::is_invoke(cur_code) && cur_code != Bytecodes::_athrow) {
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   703
            // Get expression stack size for the next bytecode
51522
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   704
            InterpreterOopMap next_mask;
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   705
            OopMapCache::compute_one_oop_map(mh, str.bci(), &next_mask);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   706
            next_mask_expression_stack_size = next_mask.expression_stack_size();
49189
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   707
            if (Bytecodes::is_invoke(next_code)) {
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   708
              Bytecode_invoke invoke(mh, str.bci());
51522
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   709
              next_mask_expression_stack_size += invoke.size_of_parameters();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
            }
49189
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   711
            // Need to subtract off the size of the result type of
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   712
            // the bytecode because this is not described in the
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   713
            // debug info but returned to the interpreter in the TOS
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   714
            // caching register
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   715
            BasicType bytecode_result_type = Bytecodes::result_type(cur_code);
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   716
            if (bytecode_result_type != T_ILLEGAL) {
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   717
              top_frame_expression_stack_adjustment = type2size[bytecode_result_type];
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   718
            }
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   719
            assert(top_frame_expression_stack_adjustment >= 0, "stack adjustment must be positive");
41e570d862b4 8148871: Possible wrong expression stack depth at deopt point
thartmann
parents: 49036
diff changeset
   720
            try_next_mask = true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
      // Verify stack depth and oops in frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
      // This assertion may be dependent on the platform we're running on and may need modification (tested on x86 and sparc)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
      if (!(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
            /* SPARC */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
            (iframe->interpreter_frame_expression_stack_size() == mask.expression_stack_size() + callee_size_of_parameters) ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
            /* x86 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
            (iframe->interpreter_frame_expression_stack_size() == mask.expression_stack_size() + callee_max_locals) ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
            (try_next_mask &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
             (iframe->interpreter_frame_expression_stack_size() == (next_mask_expression_stack_size -
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
                                                                    top_frame_expression_stack_adjustment))) ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
            (is_top_frame && (exec_mode == Unpack_exception) && iframe->interpreter_frame_expression_stack_size() == 0) ||
25920
6f9fa66be5df 8049252: VerifyStack logic in Deoptimization::unpack_frames does not expect to see invoke bc at the top frame during normal deoptimization
kvn
parents: 25715
diff changeset
   736
            (is_top_frame && (exec_mode == Unpack_uncommon_trap || exec_mode == Unpack_reexecute || el->should_reexecute()) &&
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
             (iframe->interpreter_frame_expression_stack_size() == mask.expression_stack_size() + cur_invoke_parameter_size))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
            )) {
51522
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   739
        {
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   740
          ttyLocker ttyl;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
51522
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   742
          // Print out some information that will help us debug the problem
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   743
          tty->print_cr("Wrong number of expression stack elements during deoptimization");
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   744
          tty->print_cr("  Error occurred while verifying frame %d (0..%d, 0 is topmost)", i, cur_array->frames() - 1);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   745
          tty->print_cr("  Fabricated interpreter frame had %d expression stack elements",
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   746
                        iframe->interpreter_frame_expression_stack_size());
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   747
          tty->print_cr("  Interpreter oop map had %d expression stack elements", mask.expression_stack_size());
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   748
          tty->print_cr("  try_next_mask = %d", try_next_mask);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   749
          tty->print_cr("  next_mask_expression_stack_size = %d", next_mask_expression_stack_size);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   750
          tty->print_cr("  callee_size_of_parameters = %d", callee_size_of_parameters);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   751
          tty->print_cr("  callee_max_locals = %d", callee_max_locals);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   752
          tty->print_cr("  top_frame_expression_stack_adjustment = %d", top_frame_expression_stack_adjustment);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   753
          tty->print_cr("  exec_mode = %d", exec_mode);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   754
          tty->print_cr("  cur_invoke_parameter_size = %d", cur_invoke_parameter_size);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   755
          tty->print_cr("  Thread = " INTPTR_FORMAT ", thread ID = %d", p2i(thread), thread->osthread()->thread_id());
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   756
          tty->print_cr("  Interpreted frames:");
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   757
          for (int k = 0; k < cur_array->frames(); k++) {
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   758
            vframeArrayElement* el = cur_array->element(k);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   759
            tty->print_cr("    %s (bci %d)", el->method()->name_and_sig_as_C_string(), el->bci());
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   760
          }
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   761
          cur_array->print_on_2(tty);
b426c75da4b9 8209825: guarantee(false) failed: wrong number of expression stack elements during deopt
dlong
parents: 51073
diff changeset
   762
        } // release tty lock before calling guarantee
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
        guarantee(false, "wrong number of expression stack elements during deopt");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
      VerifyOopClosure verify;
38074
8475fdc6dcc3 8154580: Save mirror in interpreter frame to enable cleanups of CLDClosure
coleenp
parents: 37484
diff changeset
   766
      iframe->oops_interpreted_do(&verify, &rm, false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
      callee_size_of_parameters = mh->size_of_parameters();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
      callee_max_locals = mh->max_locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
      is_top_frame = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
#endif /* !PRODUCT */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
  return bt;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
int Deoptimization::deoptimize_dependents() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
  Threads::deoptimized_wrt_marked_nmethods();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   784
Deoptimization::DeoptAction Deoptimization::_unloaded_action
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   785
  = Deoptimization::Action_reinterpret;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
47799
1772ebf07d1f 8152470: Add COMPILER2_OR_JVMCI definition
jcm
parents: 47794
diff changeset
   787
#if COMPILER2_OR_JVMCI
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
bool Deoptimization::realloc_objects(JavaThread* thread, frame* fr, GrowableArray<ScopeValue*>* objects, TRAPS) {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42040
diff changeset
   789
  Handle pending_exception(THREAD, thread->pending_exception());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
  const char* exception_file = thread->exception_file();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  int exception_line = thread->exception_line();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
  thread->clear_pending_exception();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   794
  bool failures = false;
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   795
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
  for (int i = 0; i < objects->length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
    assert(objects->at(i)->is_object(), "invalid debug information");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
    ObjectValue* sv = (ObjectValue*) objects->at(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   800
    Klass* k = java_lang_Class::as_Klass(sv->klass()->as_ConstantOopReadValue()->value()());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
    oop obj = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33593
diff changeset
   803
    if (k->is_instance_klass()) {
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   804
      InstanceKlass* ik = InstanceKlass::cast(k);
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   805
      obj = ik->allocate_instance(THREAD);
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33593
diff changeset
   806
    } else if (k->is_typeArray_klass()) {
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   807
      TypeArrayKlass* ak = TypeArrayKlass::cast(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
      assert(sv->field_size() % type2size[ak->element_type()] == 0, "non-integral array length");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
      int len = sv->field_size() / type2size[ak->element_type()];
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   810
      obj = ak->allocate(len, THREAD);
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33593
diff changeset
   811
    } else if (k->is_objArray_klass()) {
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   812
      ObjArrayKlass* ak = ObjArrayKlass::cast(k);
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   813
      obj = ak->allocate(sv->field_size(), THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   816
    if (obj == NULL) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   817
      failures = true;
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   818
    }
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   819
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
    assert(sv->value().is_null(), "redundant reallocation");
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   821
    assert(obj != NULL || HAS_PENDING_EXCEPTION, "allocation should succeed or we should get an exception");
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   822
    CLEAR_PENDING_EXCEPTION;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
    sv->set_value(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   826
  if (failures) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   827
    THROW_OOP_(Universe::out_of_memory_error_realloc_objects(), failures);
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   828
  } else if (pending_exception.not_null()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
    thread->set_pending_exception(pending_exception(), exception_file, exception_line);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
   832
  return failures;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
// restore elements of an eliminated type array
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
void Deoptimization::reassign_type_array_elements(frame* fr, RegisterMap* reg_map, ObjectValue* sv, typeArrayOop obj, BasicType type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
  int index = 0;
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   838
  intptr_t val;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
  for (int i = 0; i < sv->field_size(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
    StackValue* value = StackValue::create_stack_value(fr, reg_map, sv->field_at(i));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
    switch(type) {
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   843
    case T_LONG: case T_DOUBLE: {
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   844
      assert(value->type() == T_INT, "Agreement.");
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   845
      StackValue* low =
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   846
        StackValue::create_stack_value(fr, reg_map, sv->field_at(++i));
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   847
#ifdef _LP64
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   848
      jlong res = (jlong)low->get_int();
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   849
#else
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   850
#ifdef SPARC
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   851
      // For SPARC we have to swap high and low words.
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   852
      jlong res = jlong_from((jint)low->get_int(), (jint)value->get_int());
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   853
#else
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   854
      jlong res = jlong_from((jint)value->get_int(), (jint)low->get_int());
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   855
#endif //SPARC
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   856
#endif
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   857
      obj->long_at_put(index, res);
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   858
      break;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   859
    }
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   860
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   861
    // Have to cast to INT (32 bits) pointer to avoid little/big-endian problem.
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   862
    case T_INT: case T_FLOAT: { // 4 bytes.
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   863
      assert(value->type() == T_INT, "Agreement.");
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   864
      bool big_value = false;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   865
      if (i + 1 < sv->field_size() && type == T_INT) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   866
        if (sv->field_at(i)->is_location()) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   867
          Location::Type type = ((LocationValue*) sv->field_at(i))->location().type();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   868
          if (type == Location::dbl || type == Location::lng) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   869
            big_value = true;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   870
          }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   871
        } else if (sv->field_at(i)->is_constant_int()) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   872
          ScopeValue* next_scope_field = sv->field_at(i + 1);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   873
          if (next_scope_field->is_constant_long() || next_scope_field->is_constant_double()) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   874
            big_value = true;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   875
          }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   876
        }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   877
      }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   878
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   879
      if (big_value) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   880
        StackValue* low = StackValue::create_stack_value(fr, reg_map, sv->field_at(++i));
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   881
  #ifdef _LP64
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   882
        jlong res = (jlong)low->get_int();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   883
  #else
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   884
  #ifdef SPARC
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   885
        // For SPARC we have to swap high and low words.
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   886
        jlong res = jlong_from((jint)low->get_int(), (jint)value->get_int());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   887
  #else
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   888
        jlong res = jlong_from((jint)value->get_int(), (jint)low->get_int());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   889
  #endif //SPARC
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   890
  #endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   891
        obj->int_at_put(index, (jint)*((jint*)&res));
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   892
        obj->int_at_put(++index, (jint)*(((jint*)&res) + 1));
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   893
      } else {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   894
        val = value->get_int();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   895
        obj->int_at_put(index, (jint)*((jint*)&val));
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   896
      }
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   897
      break;
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   898
    }
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   899
37484
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   900
    case T_SHORT:
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   901
      assert(value->type() == T_INT, "Agreement.");
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   902
      val = value->get_int();
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   903
      obj->short_at_put(index, (jshort)*((jint*)&val));
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   904
      break;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   905
37484
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   906
    case T_CHAR:
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   907
      assert(value->type() == T_INT, "Agreement.");
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   908
      val = value->get_int();
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   909
      obj->char_at_put(index, (jchar)*((jint*)&val));
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   910
      break;
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   911
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   912
    case T_BYTE:
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   913
      assert(value->type() == T_INT, "Agreement.");
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   914
      val = value->get_int();
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   915
      obj->byte_at_put(index, (jbyte)*((jint*)&val));
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   916
      break;
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   917
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
   918
    case T_BOOLEAN:
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   919
      assert(value->type() == T_INT, "Agreement.");
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   920
      val = value->get_int();
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   921
      obj->bool_at_put(index, (jboolean)*((jint*)&val));
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   922
      break;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
   923
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
      default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
        ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
    index++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
// restore fields of an eliminated object array
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
void Deoptimization::reassign_object_array_elements(frame* fr, RegisterMap* reg_map, ObjectValue* sv, objArrayOop obj) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
  for (int i = 0; i < sv->field_size(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
    StackValue* value = StackValue::create_stack_value(fr, reg_map, sv->field_at(i));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
    assert(value->type() == T_OBJECT, "object element expected");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
    obj->obj_at_put(i, value->get_obj()());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   941
class ReassignedField {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   942
public:
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   943
  int _offset;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   944
  BasicType _type;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   945
public:
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   946
  ReassignedField() {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   947
    _offset = 0;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   948
    _type = T_ILLEGAL;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   949
  }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   950
};
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   951
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   952
int compare(ReassignedField* left, ReassignedField* right) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   953
  return left->_offset - right->_offset;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   954
}
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   955
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   956
// Restore fields of an eliminated instance object using the same field order
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   957
// returned by HotSpotResolvedObjectTypeImpl.getInstanceFields(true)
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   958
static int reassign_fields_by_klass(InstanceKlass* klass, frame* fr, RegisterMap* reg_map, ObjectValue* sv, int svIndex, oop obj, bool skip_internal) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   959
  if (klass->superklass() != NULL) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   960
    svIndex = reassign_fields_by_klass(klass->superklass(), fr, reg_map, sv, svIndex, obj, skip_internal);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   961
  }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   962
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   963
  GrowableArray<ReassignedField>* fields = new GrowableArray<ReassignedField>();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   964
  for (AllFieldStream fs(klass); !fs.done(); fs.next()) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   965
    if (!fs.access_flags().is_static() && (!skip_internal || !fs.access_flags().is_internal())) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   966
      ReassignedField field;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   967
      field._offset = fs.offset();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   968
      field._type = FieldType::basic_type(fs.signature());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   969
      fields->append(field);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   970
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   971
  }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   972
  fields->sort(compare);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   973
  for (int i = 0; i < fields->length(); i++) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   974
    intptr_t val;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   975
    ScopeValue* scope_field = sv->field_at(svIndex);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   976
    StackValue* value = StackValue::create_stack_value(fr, reg_map, scope_field);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   977
    int offset = fields->at(i)._offset;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   978
    BasicType type = fields->at(i)._type;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   979
    switch (type) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   980
      case T_OBJECT: case T_ARRAY:
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   981
        assert(value->type() == T_OBJECT, "Agreement.");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   982
        obj->obj_field_put(offset, value->get_obj()());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   983
        break;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   984
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   985
      // Have to cast to INT (32 bits) pointer to avoid little/big-endian problem.
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   986
      case T_INT: case T_FLOAT: { // 4 bytes.
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   987
        assert(value->type() == T_INT, "Agreement.");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   988
        bool big_value = false;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   989
        if (i+1 < fields->length() && fields->at(i+1)._type == T_INT) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   990
          if (scope_field->is_location()) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   991
            Location::Type type = ((LocationValue*) scope_field)->location().type();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   992
            if (type == Location::dbl || type == Location::lng) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   993
              big_value = true;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   994
            }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   995
          }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   996
          if (scope_field->is_constant_int()) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   997
            ScopeValue* next_scope_field = sv->field_at(svIndex + 1);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   998
            if (next_scope_field->is_constant_long() || next_scope_field->is_constant_double()) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
   999
              big_value = true;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1000
            }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1001
          }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1002
        }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1003
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1004
        if (big_value) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1005
          i++;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1006
          assert(i < fields->length(), "second T_INT field needed");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1007
          assert(fields->at(i)._type == T_INT, "T_INT field needed");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1008
        } else {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1009
          val = value->get_int();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1010
          obj->int_field_put(offset, (jint)*((jint*)&val));
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1011
          break;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1012
        }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1013
      }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1014
        /* no break */
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1015
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1016
      case T_LONG: case T_DOUBLE: {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1017
        assert(value->type() == T_INT, "Agreement.");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1018
        StackValue* low = StackValue::create_stack_value(fr, reg_map, sv->field_at(++svIndex));
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1019
#ifdef _LP64
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1020
        jlong res = (jlong)low->get_int();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1021
#else
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1022
#ifdef SPARC
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1023
        // For SPARC we have to swap high and low words.
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1024
        jlong res = jlong_from((jint)low->get_int(), (jint)value->get_int());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1025
#else
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1026
        jlong res = jlong_from((jint)value->get_int(), (jint)low->get_int());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1027
#endif //SPARC
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1028
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1029
        obj->long_field_put(offset, res);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1030
        break;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1031
      }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1032
37484
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1033
      case T_SHORT:
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1034
        assert(value->type() == T_INT, "Agreement.");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1035
        val = value->get_int();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1036
        obj->short_field_put(offset, (jshort)*((jint*)&val));
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1037
        break;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1038
37484
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1039
      case T_CHAR:
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1040
        assert(value->type() == T_INT, "Agreement.");
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1041
        val = value->get_int();
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1042
        obj->char_field_put(offset, (jchar)*((jint*)&val));
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1043
        break;
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1044
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1045
      case T_BYTE:
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1046
        assert(value->type() == T_INT, "Agreement.");
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1047
        val = value->get_int();
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1048
        obj->byte_field_put(offset, (jbyte)*((jint*)&val));
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1049
        break;
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1050
444a8c40cf95 8149367: PolicyQualifierInfo/index_Ctor JCk test fails with IOE: Invalid encoding for PolicyQualifierInfo
kvn
parents: 35499
diff changeset
  1051
      case T_BOOLEAN:
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1052
        assert(value->type() == T_INT, "Agreement.");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1053
        val = value->get_int();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1054
        obj->bool_field_put(offset, (jboolean)*((jint*)&val));
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1055
        break;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1056
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1057
      default:
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1058
        ShouldNotReachHere();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1059
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1060
    svIndex++;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1061
  }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1062
  return svIndex;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1063
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
// restore fields of all eliminated objects and arrays
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1066
void Deoptimization::reassign_fields(frame* fr, RegisterMap* reg_map, GrowableArray<ScopeValue*>* objects, bool realloc_failures, bool skip_internal) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
  for (int i = 0; i < objects->length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
    ObjectValue* sv = (ObjectValue*) objects->at(i);
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  1069
    Klass* k = java_lang_Class::as_Klass(sv->klass()->as_ConstantOopReadValue()->value()());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
    Handle obj = sv->value();
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1071
    assert(obj.not_null() || realloc_failures, "reallocation was missed");
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1072
    if (PrintDeoptimizationDetails) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1073
      tty->print_cr("reassign fields for object of type %s!", k->name()->as_C_string());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1074
    }
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1075
    if (obj.is_null()) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1076
      continue;
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1077
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1078
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33593
diff changeset
  1079
    if (k->is_instance_klass()) {
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  1080
      InstanceKlass* ik = InstanceKlass::cast(k);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1081
      reassign_fields_by_klass(ik, fr, reg_map, sv, 0, obj(), skip_internal);
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33593
diff changeset
  1082
    } else if (k->is_typeArray_klass()) {
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  1083
      TypeArrayKlass* ak = TypeArrayKlass::cast(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
      reassign_type_array_elements(fr, reg_map, sv, (typeArrayOop) obj(), ak->element_type());
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33593
diff changeset
  1085
    } else if (k->is_objArray_klass()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
      reassign_object_array_elements(fr, reg_map, sv, (objArrayOop) obj());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1089
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
// relock objects for which synchronization was eliminated
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1093
void Deoptimization::relock_objects(GrowableArray<MonitorInfo*>* monitors, JavaThread* thread, bool realloc_failures) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
  for (int i = 0; i < monitors->length(); i++) {
256
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
parents: 217
diff changeset
  1095
    MonitorInfo* mon_info = monitors->at(i);
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
parents: 217
diff changeset
  1096
    if (mon_info->eliminated()) {
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1097
      assert(!mon_info->owner_is_scalar_replaced() || realloc_failures, "reallocation was missed");
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1098
      if (!mon_info->owner_is_scalar_replaced()) {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42040
diff changeset
  1099
        Handle obj(thread, mon_info->owner());
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1100
        markOop mark = obj->mark();
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1101
        if (UseBiasedLocking && mark->has_bias_pattern()) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1102
          // New allocated objects may have the mark set to anonymously biased.
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1103
          // Also the deoptimized method may called methods with synchronization
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1104
          // where the thread-local object is bias locked to the current thread.
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1105
          assert(mark->is_biased_anonymously() ||
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1106
                 mark->biased_locker() == thread, "should be locked to current thread");
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1107
          // Reset mark word to unbiased prototype.
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1108
          markOop unbiased_prototype = markOopDesc::prototype()->set_age(mark->age());
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1109
          obj->set_mark(unbiased_prototype);
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1110
        }
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1111
        BasicLock* lock = mon_info->lock();
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1112
        ObjectSynchronizer::slow_enter(obj, lock, thread);
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1113
        assert(mon_info->owner()->is_locked(), "object must be locked now");
256
70fdc3927a4e 6681646: Relocking of a scalar replaced object during deoptimization is broken
kvn
parents: 217
diff changeset
  1114
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
// print information about reallocated objects
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1122
void Deoptimization::print_objects(GrowableArray<ScopeValue*>* objects, bool realloc_failures) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
  fieldDescriptor fd;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
  for (int i = 0; i < objects->length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
    ObjectValue* sv = (ObjectValue*) objects->at(i);
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  1127
    Klass* k = java_lang_Class::as_Klass(sv->klass()->as_ConstantOopReadValue()->value()());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
    Handle obj = sv->value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
  1130
    tty->print("     object <" INTPTR_FORMAT "> of type ", p2i(sv->value()()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1131
    k->print_value();
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1132
    assert(obj.not_null() || realloc_failures, "reallocation was missed");
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1133
    if (obj.is_null()) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1134
      tty->print(" allocation failed");
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1135
    } else {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1136
      tty->print(" allocated (%d bytes)", obj->size() * HeapWordSize);
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1137
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
    tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1140
    if (Verbose && !obj.is_null()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
      k->oop_print_on(obj(), tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
#endif
47799
1772ebf07d1f 8152470: Add COMPILER2_OR_JVMCI definition
jcm
parents: 47794
diff changeset
  1146
#endif // COMPILER2_OR_JVMCI
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1148
vframeArray* Deoptimization::create_vframeArray(JavaThread* thread, frame fr, RegisterMap *reg_map, GrowableArray<compiledVFrame*>* chunk, bool realloc_failures) {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
  1149
  Events::log(thread, "DEOPT PACKING pc=" INTPTR_FORMAT " sp=" INTPTR_FORMAT, p2i(fr.pc()), p2i(fr.sp()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
#ifndef PRODUCT
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1152
  if (PrintDeoptimizationDetails) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
    ttyLocker ttyl;
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
  1154
    tty->print("DEOPT PACKING thread " INTPTR_FORMAT " ", p2i(thread));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
    fr.print_on(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
    tty->print_cr("     Virtual frames (innermost first):");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
    for (int index = 0; index < chunk->length(); index++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
      compiledVFrame* vf = chunk->at(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
      tty->print("       %2d - ", index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
      vf->print_value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
      int bci = chunk->at(index)->raw_bci();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
      const char* code_name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
      if (bci == SynchronizationEntryBCI) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
        code_name = "sync entry";
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
      } else {
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1166
        Bytecodes::Code code = vf->method()->code_at(bci);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1167
        code_name = Bytecodes::name(code);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
      tty->print(" - %s", code_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
      tty->print_cr(" @ bci %d ", bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
      if (Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
        vf->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
        tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  // Register map for next frame (used for stack crawl).  We capture
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
  // the state of the deopt'ing frame's caller.  Thus if we need to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
  // stuff a C2I adapter we can properly fill in the callee-save
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
  // register locations.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
  frame caller = fr.sender(reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
  int frame_size = caller.sp() - fr.sp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
  frame sender = caller;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
  // Since the Java thread being deoptimized will eventually adjust it's own stack,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
  // the vframeArray containing the unpacking information is allocated in the C heap.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
  // For Compiler1, the caller of the deoptimized frame is saved for use by unpack_frames().
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1191
  vframeArray* array = vframeArray::allocate(thread, frame_size, chunk, reg_map, sender, caller, fr, realloc_failures);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
  // Compare the vframeArray to the collected vframes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
  assert(array->structural_compare(thread, chunk), "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
#ifndef PRODUCT
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1197
  if (PrintDeoptimizationDetails) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
    ttyLocker ttyl;
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
  1199
    tty->print_cr("     Created vframeArray " INTPTR_FORMAT, p2i(array));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
#endif // PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
  return array;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
47799
1772ebf07d1f 8152470: Add COMPILER2_OR_JVMCI definition
jcm
parents: 47794
diff changeset
  1206
#if COMPILER2_OR_JVMCI
28039
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1207
void Deoptimization::pop_frames_failed_reallocs(JavaThread* thread, vframeArray* array) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1208
  // Reallocation of some scalar replaced objects failed. Record
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1209
  // that we need to pop all the interpreter frames for the
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1210
  // deoptimized compiled frame.
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1211
  assert(thread->frames_to_pop_failed_realloc() == 0, "missed frames to pop?");
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1212
  thread->set_frames_to_pop_failed_realloc(array->frames());
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1213
  // Unlock all monitors here otherwise the interpreter will see a
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1214
  // mix of locked and unlocked monitors (because of failed
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1215
  // reallocations of synchronized objects) and be confused.
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1216
  for (int i = 0; i < array->frames(); i++) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1217
    MonitorChunk* monitors = array->element(i)->monitors();
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1218
    if (monitors != NULL) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1219
      for (int j = 0; j < monitors->number_of_monitors(); j++) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1220
        BasicObjectLock* src = monitors->at(j);
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1221
        if (src->obj() != NULL) {
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1222
          ObjectSynchronizer::fast_exit(src->obj(), src->lock(), thread);
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1223
        }
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1224
      }
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1225
      array->element(i)->free_monitors(thread);
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1226
#ifdef ASSERT
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1227
      array->element(i)->set_removed_monitors();
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1228
#endif
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1229
    }
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1230
  }
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1231
}
bf5a8340bf8a 6898462: The escape analysis with G1 cause crash assertion src/share/vm/runtime/vframeArray.cpp:94
roland
parents: 27880
diff changeset
  1232
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
static void collect_monitors(compiledVFrame* cvf, GrowableArray<Handle>* objects_to_revoke) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
  GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42040
diff changeset
  1236
  Thread* thread = Thread::current();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  for (int i = 0; i < monitors->length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
    MonitorInfo* mon_info = monitors->at(i);
3171
aa289b22b577 6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
kvn
parents: 670
diff changeset
  1239
    if (!mon_info->eliminated() && mon_info->owner() != NULL) {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42040
diff changeset
  1240
      objects_to_revoke->append(Handle(thread, mon_info->owner()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
void Deoptimization::revoke_biases_of_monitors(JavaThread* thread, frame fr, RegisterMap* map) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  if (!UseBiasedLocking) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
  GrowableArray<Handle>* objects_to_revoke = new GrowableArray<Handle>();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
  // Unfortunately we don't have a RegisterMap available in most of
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
  // the places we want to call this routine so we need to walk the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
  // stack again to update the register map.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
  if (map == NULL || !map->update_map()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
    StackFrameStream sfs(thread, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
    bool found = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
    while (!found && !sfs.is_done()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
      frame* cur = sfs.current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
      sfs.next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
      found = cur->id() == fr.id();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
    assert(found, "frame to be deoptimized not found on target thread's stack");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
    map = sfs.register_map();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
  vframe* vf = vframe::new_vframe(&fr, map, thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
  compiledVFrame* cvf = compiledVFrame::cast(vf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  // Revoke monitors' biases in all scopes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
  while (!cvf->is_top()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
    collect_monitors(cvf, objects_to_revoke);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
    cvf = compiledVFrame::cast(cvf->sender());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
  collect_monitors(cvf, objects_to_revoke);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
  if (SafepointSynchronize::is_at_safepoint()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
    BiasedLocking::revoke_at_safepoint(objects_to_revoke);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
    BiasedLocking::revoke(objects_to_revoke);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1285
void Deoptimization::deoptimize_single_frame(JavaThread* thread, frame fr, Deoptimization::DeoptReason reason) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
  assert(fr.can_be_deoptimized(), "checking frame type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1288
  gather_statistics(reason, Action_none, Bytecodes::_illegal);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1289
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1290
  if (LogCompilation && xtty != NULL) {
38133
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 35499
diff changeset
  1291
    CompiledMethod* cm = fr.cb()->as_compiled_method_or_null();
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 35499
diff changeset
  1292
    assert(cm != NULL, "only compiled methods can deopt");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1294
    ttyLocker ttyl;
38242
c9013a328fe2 8156126: LogCompilation: Dump additional info about deoptimization events
jcm
parents: 38144
diff changeset
  1295
    xtty->begin_head("deoptimized thread='" UINTX_FORMAT "' reason='%s' pc='" INTPTR_FORMAT "'",(uintx)thread->osthread()->thread_id(), trap_reason_name(reason), p2i(fr.pc()));
38133
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 35499
diff changeset
  1296
    cm->log_identity(xtty);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1297
    xtty->end_head();
38133
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 35499
diff changeset
  1298
    for (ScopeDesc* sd = cm->scope_desc_at(fr.pc()); ; sd = sd->sender()) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1299
      xtty->begin_elem("jvms bci='%d'", sd->bci());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1300
      xtty->method(sd->method());
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1301
      xtty->end_elem();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1302
      if (sd->is_top())  break;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1303
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1304
    xtty->tail("deoptimized");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1305
  }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1306
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1307
  // Patch the compiled method so that when execution returns to it we will
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
  // deopt the execution state and return to the interpreter.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
  fr.deoptimize(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
void Deoptimization::deoptimize(JavaThread* thread, frame fr, RegisterMap *map) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1313
  deoptimize(thread, fr, map, Reason_constraint);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1314
}
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1315
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1316
void Deoptimization::deoptimize(JavaThread* thread, frame fr, RegisterMap *map, DeoptReason reason) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
  // Deoptimize only if the frame comes from compile code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
  // Do not deoptimize the frame which is already patched
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
  // during the execution of the loops below.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1320
  if (!fr.is_compiled_frame() || fr.is_deoptimized_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1321
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1322
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
  DeoptimizationMarker dm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
  if (UseBiasedLocking) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
    revoke_biases_of_monitors(thread, fr, map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
  }
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1328
  deoptimize_single_frame(thread, fr, reason);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
46998
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1332
#if INCLUDE_JVMCI
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1333
address Deoptimization::deoptimize_for_missing_exception_handler(CompiledMethod* cm) {
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1334
  // there is no exception handler for this pc => deoptimize
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1335
  cm->make_not_entrant();
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1336
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1337
  // Use Deoptimization::deoptimize for all of its side-effects:
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1338
  // revoking biases of monitors, gathering traps statistics, logging...
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1339
  // it also patches the return pc but we do not care about that
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1340
  // since we return a continuation to the deopt_blob below.
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1341
  JavaThread* thread = JavaThread::current();
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1342
  RegisterMap reg_map(thread, UseBiasedLocking);
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1343
  frame runtime_frame = thread->last_frame();
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1344
  frame caller_frame = runtime_frame.sender(&reg_map);
47692
0d2d80c0d425 8189649: AOT: assert(caller_frame.cb()->as_nmethod_or_null() == cm) failed: expect top frame nmethod
dlong
parents: 47687
diff changeset
  1345
  assert(caller_frame.cb()->as_compiled_method_or_null() == cm, "expect top frame compiled method");
46998
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1346
  Deoptimization::deoptimize(thread, caller_frame, &reg_map, Deoptimization::Reason_not_compiled_exception_handler);
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1347
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1348
  MethodData* trap_mdo = get_method_data(thread, cm->method(), true);
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1349
  if (trap_mdo != NULL) {
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1350
    trap_mdo->inc_trap_count(Deoptimization::Reason_not_compiled_exception_handler);
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1351
  }
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1352
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1353
  return SharedRuntime::deopt_blob()->unpack_with_exception_in_tls();
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1354
}
efb404beeefb 8181858: [JVMCI] JVMCI should update the trap counters when invalidating for Reason_not_compiled_exception_handler
never
parents: 46968
diff changeset
  1355
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1357
void Deoptimization::deoptimize_frame_internal(JavaThread* thread, intptr_t* id, DeoptReason reason) {
7106
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1358
  assert(thread == Thread::current() || SafepointSynchronize::is_at_safepoint(),
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1359
         "can only deoptimize other thread at a safepoint");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
  // Compute frame and register map based on thread and sp.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
  RegisterMap reg_map(thread, UseBiasedLocking);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
  frame fr = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
  while (fr.id() != id) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
    fr = fr.sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
  }
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1366
  deoptimize(thread, fr, &reg_map, reason);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1370
void Deoptimization::deoptimize_frame(JavaThread* thread, intptr_t* id, DeoptReason reason) {
7106
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1371
  if (thread == Thread::current()) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1372
    Deoptimization::deoptimize_frame_internal(thread, id, reason);
7106
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1373
  } else {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1374
    VM_DeoptimizeFrame deopt(thread, id, reason);
7106
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1375
    VMThread::execute(&deopt);
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1376
  }
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1377
}
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1378
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1379
void Deoptimization::deoptimize_frame(JavaThread* thread, intptr_t* id) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1380
  deoptimize_frame(thread, id, Reason_constraint);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1381
}
7106
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6740
diff changeset
  1382
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
// JVMTI PopFrame support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
JRT_LEAF(void, Deoptimization::popframe_preserve_args(JavaThread* thread, int bytes_to_save, void* start_address))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
  thread->popframe_preserve_args(in_ByteSize(bytes_to_save), start_address);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1390
MethodData*
46727
6e4a84748e2c 8183039: Re-examine methodHandle methods uninlined by 8144256
coleenp
parents: 46560
diff changeset
  1391
Deoptimization::get_method_data(JavaThread* thread, const methodHandle& m,
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1392
                                bool create_if_missing) {
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1393
  Thread* THREAD = thread;
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1394
  MethodData* mdo = m()->method_data();
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1395
  if (mdo == NULL && create_if_missing && !HAS_PENDING_EXCEPTION) {
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1396
    // Build an MDO.  Ignore errors like OutOfMemory;
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1397
    // that simply means we won't have an MDO to update.
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1398
    Method::build_interpreter_method_data(m, THREAD);
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1399
    if (HAS_PENDING_EXCEPTION) {
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1400
      assert((PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())), "we expect only an OOM error here");
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1401
      CLEAR_PENDING_EXCEPTION;
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1402
    }
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1403
    mdo = m()->method_data();
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1404
  }
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1405
  return mdo;
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1406
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
47799
1772ebf07d1f 8152470: Add COMPILER2_OR_JVMCI definition
jcm
parents: 47794
diff changeset
  1408
#if COMPILER2_OR_JVMCI
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33198
diff changeset
  1409
void Deoptimization::load_class_by_index(const constantPoolHandle& constant_pool, int index, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
  // in case of an unresolved klass entry, load the class.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
  if (constant_pool->tag_at(index).is_unresolved_klass()) {
27408
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 26436
diff changeset
  1412
    Klass* tk = constant_pool->klass_at_ignore_error(index, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
  if (!constant_pool->tag_at(index).is_symbol()) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 13974
diff changeset
  1418
  Handle class_loader (THREAD, constant_pool->pool_holder()->class_loader());
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1419
  Symbol*  symbol  = constant_pool->symbol_at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
  // class name?
51997
9ce37fa2e179 8209138: Symbol constructor uses u1 as the element type of its name argument
hseigel
parents: 51522
diff changeset
  1422
  if (symbol->char_at(0) != '(') {
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 13974
diff changeset
  1423
    Handle protection_domain (THREAD, constant_pool->pool_holder()->protection_domain());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
    SystemDictionary::resolve_or_null(symbol, class_loader, protection_domain, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
  // then it must be a signature!
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1429
  ResourceMark rm(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
  for (SignatureStream ss(symbol); !ss.is_done(); ss.next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
    if (ss.is_object()) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1432
      Symbol* class_name = ss.as_symbol(CHECK);
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 13974
diff changeset
  1433
      Handle protection_domain (THREAD, constant_pool->pool_holder()->protection_domain());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
      SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1435
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33198
diff changeset
  1440
void Deoptimization::load_class_by_index(const constantPoolHandle& constant_pool, int index) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
  load_class_by_index(constant_pool, index, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
    // Exception happened during classloading. We ignore the exception here, since it
22241
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1445
    // is going to be rethrown since the current activation is going to be deoptimized and
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
    // the interpreter will re-execute the bytecode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
    CLEAR_PENDING_EXCEPTION;
22241
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1448
    // Class loading called java code which may have caused a stack
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1449
    // overflow. If the exception was thrown right before the return
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1450
    // to the runtime the stack is no longer guarded. Reguard the
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1451
    // stack otherwise if we return to the uncommon trap blob and the
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1452
    // stack bang causes a stack overflow we crash.
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1453
    assert(THREAD->is_Java_thread(), "only a java thread can be here");
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1454
    JavaThread* thread = (JavaThread*)THREAD;
35071
a0910b1d3e0d 8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents: 34651
diff changeset
  1455
    bool guard_pages_enabled = thread->stack_guards_enabled();
22241
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1456
    if (!guard_pages_enabled) guard_pages_enabled = thread->reguard_stack();
58579a498f3a 8029873: compiler/uncommontrap/TestStackBangRbp.java crashes with SIGSEGV
roland
parents: 20282
diff changeset
  1457
    assert(guard_pages_enabled, "stack banging in uncommon trap blob may cause crash");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1461
JRT_ENTRY(void, Deoptimization::uncommon_trap_inner(JavaThread* thread, jint trap_request)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
  HandleMark hm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
  // uncommon_trap() is called at the beginning of the uncommon trap
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
  // handler. Note this fact before we start generating temporary frames
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
  // that can confuse an asynchronous stack walker. This counter is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
  // decremented at the end of unpack_frames().
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
  thread->inc_in_deopt_handler();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
  // We need to update the map if we have biased locking.
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1471
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1472
  // JVMCI might need to get an exception from the stack, which in turn requires the register map to be valid
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1473
  RegisterMap reg_map(thread, true);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1474
#else
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
  RegisterMap reg_map(thread, UseBiasedLocking);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1476
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
  frame stub_frame = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
  frame fr = stub_frame.sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
  // Make sure the calling nmethod is not getting deoptimized and removed
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
  // before we are done with it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
  nmethodLocker nl(fr.pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
11636
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11445
diff changeset
  1483
  // Log a message
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1484
  Events::log(thread, "Uncommon trap: trap_request=" PTR32_FORMAT " fr.pc=" INTPTR_FORMAT " relative=" INTPTR_FORMAT,
33198
dlong
parents: 33148 33160
diff changeset
  1485
              trap_request, p2i(fr.pc()), fr.pc() - fr.cb()->code_begin());
11636
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11445
diff changeset
  1486
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1488
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1489
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1490
    // Revoke biases of any monitors in the frame to ensure we can migrate them
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1491
    revoke_biases_of_monitors(thread, fr, &reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1492
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
    DeoptReason reason = trap_request_reason(trap_request);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1494
    DeoptAction action = trap_request_action(trap_request);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1495
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1496
    int debug_id = trap_request_debug_id(trap_request);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1497
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1498
    jint unloaded_class_index = trap_request_index(trap_request); // CP idx or -1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
    vframe*  vf  = vframe::new_vframe(&fr, &reg_map, thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1501
    compiledVFrame* cvf = compiledVFrame::cast(vf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
38133
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 35499
diff changeset
  1503
    CompiledMethod* nm = cvf->code();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1504
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1505
    ScopeDesc*      trap_scope  = cvf->scope();
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1506
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1507
    if (TraceDeoptimization) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1508
      ttyLocker ttyl;
33198
dlong
parents: 33148 33160
diff changeset
  1509
      tty->print_cr("  bci=%d pc=" INTPTR_FORMAT ", relative_pc=" INTPTR_FORMAT ", method=%s" JVMCI_ONLY(", debug_id=%d"), trap_scope->bci(), p2i(fr.pc()), fr.pc() - nm->code_begin(), trap_scope->method()->name_and_sig_as_C_string()
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1510
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1511
          , debug_id
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1512
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1513
          );
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1514
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1515
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
    methodHandle    trap_method = trap_scope->method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
    int             trap_bci    = trap_scope->bci();
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1518
#if INCLUDE_JVMCI
54669
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1519
    jlong           speculation = thread->pending_failed_speculation();
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1520
    if (nm->is_compiled_by_jvmci() && nm->is_nmethod()) { // Exclude AOTed methods
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1521
      nm->as_nmethod()->update_speculation(thread);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1522
    } else {
54669
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1523
      assert(speculation == 0, "There should not be a speculation for methods compiled by non-JVMCI compilers");
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1524
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1525
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1526
    if (trap_bci == SynchronizationEntryBCI) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1527
      trap_bci = 0;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1528
      thread->set_pending_monitorenter(true);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1529
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1530
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1531
    if (reason == Deoptimization::Reason_transfer_to_interpreter) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1532
      thread->set_pending_transfer_to_interpreter(true);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1533
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1534
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1535
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1536
    Bytecodes::Code trap_bc     = trap_method->java_code_at(trap_bci);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
    // Record this event in the histogram.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
    gather_statistics(reason, action, trap_bc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
    // Ensure that we can record deopt. history:
23491
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1541
    // Need MDO to record RTM code generation state.
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1542
    bool create_if_missing = ProfileTraps || UseCodeAging RTM_OPT_ONLY( || UseRTMLocking );
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1543
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1544
    methodHandle profiled_method;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1545
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1546
    if (nm->is_compiled_by_jvmci()) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1547
      profiled_method = nm->method();
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1548
    } else {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1549
      profiled_method = trap_method;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1550
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1551
#else
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1552
    profiled_method = trap_method;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1553
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1554
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1555
    MethodData* trap_mdo =
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1556
      get_method_data(thread, profiled_method, create_if_missing);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1557
14620
45167d2bc15a 8001538: hs_err file does not list anymore compiled methods in compilation events
vlivanov
parents: 14391
diff changeset
  1558
    // Log a message
43942
fff6b7b5611f 8173794: [REDO] [AOT] Missing GC scan of _metaspace_got array containing Klass*
kvn
parents: 43936
diff changeset
  1559
    Events::log_deopt_message(thread, "Uncommon trap: reason=%s action=%s pc=" INTPTR_FORMAT " method=%s @ %d %s",
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
  1560
                              trap_reason_name(reason), trap_action_name(action), p2i(fr.pc()),
43942
fff6b7b5611f 8173794: [REDO] [AOT] Missing GC scan of _metaspace_got array containing Klass*
kvn
parents: 43936
diff changeset
  1561
                              trap_method->name_and_sig_as_C_string(), trap_bci, nm->compiler_name());
14620
45167d2bc15a 8001538: hs_err file does not list anymore compiled methods in compilation events
vlivanov
parents: 14391
diff changeset
  1562
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
    // Print a bunch of diagnostics, if requested.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1564
    if (TraceDeoptimization || LogCompilation) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1565
      ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1566
      ttyLocker ttyl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1567
      char buf[100];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1568
      if (xtty != NULL) {
31592
43f48e165466 8081202: Hotspot compile warning: "Invalid suffix on literal; C++11 requires a space between literal and identifier"
bpittore
parents: 30183
diff changeset
  1569
        xtty->begin_head("uncommon_trap thread='" UINTX_FORMAT "' %s",
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1570
                         os::current_thread_id(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1571
                         format_trap_request(buf, sizeof(buf), trap_request));
54669
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1572
#if INCLUDE_JVMCI
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1573
        if (speculation != 0) {
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1574
          xtty->print(" speculation='" JLONG_FORMAT "'", speculation);
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1575
        }
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1576
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1577
        nm->log_identity(xtty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1578
      }
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1579
      Symbol* class_name = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1580
      bool unresolved = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1581
      if (unloaded_class_index >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1582
        constantPoolHandle constants (THREAD, trap_method->constants());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1583
        if (constants->tag_at(unloaded_class_index).is_unresolved_klass()) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1584
          class_name = constants->klass_name_at(unloaded_class_index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1585
          unresolved = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1586
          if (xtty != NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1587
            xtty->print(" unresolved='1'");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1588
        } else if (constants->tag_at(unloaded_class_index).is_symbol()) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1589
          class_name = constants->symbol_at(unloaded_class_index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1590
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1591
        if (xtty != NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1592
          xtty->name(class_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1593
      }
24477
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  1594
      if (xtty != NULL && trap_mdo != NULL && (int)reason < (int)MethodData::_trap_hist_limit) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1595
        // Dump the relevant MDO state.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1596
        // This is the deopt count for the current reason, any previous
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1597
        // reasons or recompiles seen at this point.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1598
        int dcnt = trap_mdo->trap_count(reason);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1599
        if (dcnt != 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1600
          xtty->print(" count='%d'", dcnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1601
        ProfileData* pdata = trap_mdo->bci_to_data(trap_bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1602
        int dos = (pdata == NULL)? 0: pdata->trap_state();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1603
        if (dos != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1604
          xtty->print(" state='%s'", format_trap_state(buf, sizeof(buf), dos));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1605
          if (trap_state_is_recompiled(dos)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1606
            int recnt2 = trap_mdo->overflow_recompile_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1607
            if (recnt2 != 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1608
              xtty->print(" recompiles2='%d'", recnt2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1609
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1610
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1611
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1612
      if (xtty != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1613
        xtty->stamp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1614
        xtty->end_head();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1615
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1616
      if (TraceDeoptimization) {  // make noise on the tty
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1617
        tty->print("Uncommon trap occurred in");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1618
        nm->method()->print_short_name(tty);
42040
70ec5a09a0d5 8166377: is_compiled_by_jvmci hot in some profiles - improve nmethod compiler type detection
neliasso
parents: 39261
diff changeset
  1619
        tty->print(" compiler=%s compile_id=%d", nm->compiler_name(), nm->compile_id());
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1620
#if INCLUDE_JVMCI
38133
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 35499
diff changeset
  1621
        if (nm->is_nmethod()) {
54669
ad45b3802d4e 8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents: 53838
diff changeset
  1622
          const char* installed_code_name = nm->as_nmethod()->jvmci_name();
47794
e84aa2c71241 8188102: [JVMCI] Convert special JVMCI oops in nmethod to jweak values
dnsimon
parents: 47765
diff changeset
  1623
          if (installed_code_name != NULL) {
e84aa2c71241 8188102: [JVMCI] Convert special JVMCI oops in nmethod to jweak values
dnsimon
parents: 47765
diff changeset
  1624
            tty->print(" (JVMCI: installed code name=%s) ", installed_code_name);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1625
          }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1626
        }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1627
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1628
        tty->print(" (@" INTPTR_FORMAT ") thread=" UINTX_FORMAT " reason=%s action=%s unloaded_class_index=%d" JVMCI_ONLY(" debug_id=%d"),
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 31593
diff changeset
  1629
                   p2i(fr.pc()),
13964
01a2b863cc61 7177003: C1: LogCompilation support
vlivanov
parents: 13728
diff changeset
  1630
                   os::current_thread_id(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1631
                   trap_reason_name(reason),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1632
                   trap_action_name(action),
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1633
                   unloaded_class_index
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1634
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1635
                   , debug_id
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1636
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1637
                   );
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1638
        if (class_name != NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1639
          tty->print(unresolved ? " unresolved class: " : " symbol: ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1640
          class_name->print_symbol_on(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1641
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1642
        tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1643
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1644
      if (xtty != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1645
        // Log the precise location of the trap.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1646
        for (ScopeDesc* sd = trap_scope; ; sd = sd->sender()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1647
          xtty->begin_elem("jvms bci='%d'", sd->bci());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1648
          xtty->method(sd->method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1649
          xtty->end_elem();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1650
          if (sd->is_top())  break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1651
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1652
        xtty->tail("uncommon_trap");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1653
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1654
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1655
    // (End diagnostic printout.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1656
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1657
    // Load class if necessary
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1658
    if (unloaded_class_index >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1659
      constantPoolHandle constants(THREAD, trap_method->constants());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1660
      load_class_by_index(constants, unloaded_class_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1661
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1662
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1663
    // Flush the nmethod if necessary and desirable.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1664
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1665
    // We need to avoid situations where we are re-flushing the nmethod
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1666
    // because of a hot deoptimization site.  Repeated flushes at the same
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1667
    // point need to be detected by the compiler and avoided.  If the compiler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1668
    // cannot avoid them (or has a bug and "refuses" to avoid them), this
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1669
    // module must take measures to avoid an infinite cycle of recompilation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1670
    // and deoptimization.  There are several such measures:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1671
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1672
    //   1. If a recompilation is ordered a second time at some site X
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1673
    //   and for the same reason R, the action is adjusted to 'reinterpret',
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1674
    //   to give the interpreter time to exercise the method more thoroughly.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1675
    //   If this happens, the method's overflow_recompile_count is incremented.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1676
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1677
    //   2. If the compiler fails to reduce the deoptimization rate, then
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1678
    //   the method's overflow_recompile_count will begin to exceed the set
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1679
    //   limit PerBytecodeRecompilationCutoff.  If this happens, the action
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1680
    //   is adjusted to 'make_not_compilable', and the method is abandoned
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1681
    //   to the interpreter.  This is a performance hit for hot methods,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1682
    //   but is better than a disastrous infinite cycle of recompilations.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1683
    //   (Actually, only the method containing the site X is abandoned.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1684
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1685
    //   3. In parallel with the previous measures, if the total number of
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1686
    //   recompilations of a method exceeds the much larger set limit
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1687
    //   PerMethodRecompilationCutoff, the method is abandoned.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1688
    //   This should only happen if the method is very large and has
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1689
    //   many "lukewarm" deoptimizations.  The code which enforces this
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1690
    //   limit is elsewhere (class nmethod, class Method).
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1691
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1692
    // Note that the per-BCI 'is_recompiled' bit gives the compiler one chance
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1693
    // to recompile at each bytecode independently of the per-BCI cutoff.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1694
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1695
    // The decision to update code is up to the compiler, and is encoded
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1696
    // in the Action_xxx code.  If the compiler requests Action_none
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1697
    // no trap state is changed, no compiled code is changed, and the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1698
    // computation suffers along in the interpreter.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1699
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1700
    // The other action codes specify various tactics for decompilation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1701
    // and recompilation.  Action_maybe_recompile is the loosest, and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1702
    // allows the compiled code to stay around until enough traps are seen,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1703
    // and until the compiler gets around to recompiling the trapping method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1704
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1705
    // The other actions cause immediate removal of the present code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1706
31228
8e427370cdd1 8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents: 30183
diff changeset
  1707
    // Traps caused by injected profile shouldn't pollute trap counts.
8e427370cdd1 8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents: 30183
diff changeset
  1708
    bool injected_profile_trap = trap_method->has_injected_profile() &&
8e427370cdd1 8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents: 30183
diff changeset
  1709
                                 (reason == Reason_intrinsic || reason == Reason_unreached);
8e427370cdd1 8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents: 30183
diff changeset
  1710
8e427370cdd1 8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents: 30183
diff changeset
  1711
    bool update_trap_state = (reason != Reason_tenured) && !injected_profile_trap;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1712
    bool make_not_entrant = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1713
    bool make_not_compilable = false;
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1714
    bool reprofile = false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1715
    switch (action) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1716
    case Action_none:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1717
      // Keep the old code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1718
      update_trap_state = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1719
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1720
    case Action_maybe_recompile:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1721
      // Do not need to invalidate the present code, but we can
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1722
      // initiate another
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1723
      // Start compiler without (necessarily) invalidating the nmethod.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1724
      // The system will tolerate the old code, but new code should be
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1725
      // generated when possible.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1726
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1727
    case Action_reinterpret:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1728
      // Go back into the interpreter for a while, and then consider
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1729
      // recompiling form scratch.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1730
      make_not_entrant = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1731
      // Reset invocation counter for outer most method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1732
      // This will allow the interpreter to exercise the bytecodes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1733
      // for a while before recompiling.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1734
      // By contrast, Action_make_not_entrant is immediate.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1735
      //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1736
      // Note that the compiler will track null_check, null_assert,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1737
      // range_check, and class_check events and log them as if they
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1738
      // had been traps taken from compiled code.  This will update
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1739
      // the MDO trap history so that the next compilation will
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1740
      // properly detect hot trap sites.
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1741
      reprofile = true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1742
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1743
    case Action_make_not_entrant:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1744
      // Request immediate recompilation, and get rid of the old code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1745
      // Make them not entrant, so next time they are called they get
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1746
      // recompiled.  Unloaded classes are loaded now so recompile before next
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1747
      // time they are called.  Same for uninitialized.  The interpreter will
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1748
      // link the missing class, if any.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1749
      make_not_entrant = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1750
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1751
    case Action_make_not_compilable:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1752
      // Give up on compiling this method at all.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1753
      make_not_entrant = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1754
      make_not_compilable = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1755
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1756
    default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1757
      ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1758
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1759
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1760
    // Setting +ProfileTraps fixes the following, on all platforms:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1761
    // 4852688: ProfileInterpreter is off by default for ia64.  The result is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1762
    // infinite heroic-opt-uncommon-trap/deopt/recompile cycles, since the
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1763
    // recompile relies on a MethodData* to record heroic opt failures.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1764
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1765
    // Whether the interpreter is producing MDO data or not, we also need
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1766
    // to use the MDO to detect hot deoptimization points and control
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1767
    // aggressive optimization.
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1768
    bool inc_recompile_count = false;
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1769
    ProfileData* pdata = NULL;
43936
093cd5bea2e2 8173679: Disable ProfileTrap code and UseRTMLocking in emulated client Win32
jcm
parents: 43931
diff changeset
  1770
    if (ProfileTraps && !is_client_compilation_mode_vm() && update_trap_state && trap_mdo != NULL) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1771
      assert(trap_mdo == get_method_data(thread, profiled_method, false), "sanity");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1772
      uint this_trap_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1773
      bool maybe_prior_trap = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1774
      bool maybe_prior_recompile = false;
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1775
      pdata = query_update_method_data(trap_mdo, trap_bci, reason, true,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1776
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1777
                                   nm->is_compiled_by_jvmci() && nm->is_osr_method(),
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1778
#endif
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1779
                                   nm->method(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1780
                                   //outputs:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1781
                                   this_trap_count,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1782
                                   maybe_prior_trap,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1783
                                   maybe_prior_recompile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1784
      // Because the interpreter also counts null, div0, range, and class
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1785
      // checks, these traps from compiled code are double-counted.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1786
      // This is harmless; it just means that the PerXTrapLimit values
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1787
      // are in effect a little smaller than they look.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1788
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1789
      DeoptReason per_bc_reason = reason_recorded_per_bytecode_if_any(reason);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1790
      if (per_bc_reason != Reason_none) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1791
        // Now take action based on the partially known per-BCI history.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1792
        if (maybe_prior_trap
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1793
            && this_trap_count >= (uint)PerBytecodeTrapLimit) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1794
          // If there are too many traps at this BCI, force a recompile.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1795
          // This will allow the compiler to see the limit overflow, and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1796
          // take corrective action, if possible.  The compiler generally
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1797
          // does not use the exact PerBytecodeTrapLimit value, but instead
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1798
          // changes its tactics if it sees any traps at all.  This provides
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1799
          // a little hysteresis, delaying a recompile until a trap happens
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1800
          // several times.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1801
          //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1802
          // Actually, since there is only one bit of counter per BCI,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1803
          // the possible per-BCI counts are {0,1,(per-method count)}.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1804
          // This produces accurate results if in fact there is only
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1805
          // one hot trap site, but begins to get fuzzy if there are
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1806
          // many sites.  For example, if there are ten sites each
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1807
          // trapping two or more times, they each get the blame for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1808
          // all of their traps.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1809
          make_not_entrant = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1810
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1811
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1812
        // Detect repeated recompilation at the same BCI, and enforce a limit.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1813
        if (make_not_entrant && maybe_prior_recompile) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1814
          // More than one recompile at this point.
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1815
          inc_recompile_count = maybe_prior_trap;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1816
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1817
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1818
        // For reasons which are not recorded per-bytecode, we simply
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1819
        // force recompiles unconditionally.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1820
        // (Note that PerMethodRecompilationCutoff is enforced elsewhere.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1821
        make_not_entrant = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1822
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1823
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1824
      // Go back to the compiler if there are too many traps in this method.
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1825
      if (this_trap_count >= per_method_trap_limit(reason)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1826
        // If there are too many traps in this method, force a recompile.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1827
        // This will allow the compiler to see the limit overflow, and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1828
        // take corrective action, if possible.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1829
        // (This condition is an unlikely backstop only, because the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1830
        // PerBytecodeTrapLimit is more likely to take effect first,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1831
        // if it is applicable.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1832
        make_not_entrant = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1833
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1834
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1835
      // Here's more hysteresis:  If there has been a recompile at
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1836
      // this trap point already, run the method in the interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1837
      // for a while to exercise it more thoroughly.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1838
      if (make_not_entrant && maybe_prior_recompile && maybe_prior_trap) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1839
        reprofile = true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1840
      }
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1841
    }
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1842
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1843
    // Take requested actions on the method:
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1844
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1845
    // Recompile
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1846
    if (make_not_entrant) {
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1847
      if (!nm->make_not_entrant()) {
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1848
        return; // the call did not change nmethod's state
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1849
      }
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1850
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1851
      if (pdata != NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1852
        // Record the recompilation event, if any.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1853
        int tstate0 = pdata->trap_state();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1854
        int tstate1 = trap_state_set_recompiled(tstate0, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1855
        if (tstate1 != tstate0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1856
          pdata->set_trap_state(tstate1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1857
      }
23491
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1858
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1859
#if INCLUDE_RTM_OPT
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1860
      // Restart collecting RTM locking abort statistic if the method
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1861
      // is recompiled for a reason other than RTM state change.
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1862
      // Assume that in new recompiled code the statistic could be different,
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1863
      // for example, due to different inlining.
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1864
      if ((reason != Reason_rtm_state_change) && (trap_mdo != NULL) &&
38133
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 35499
diff changeset
  1865
          UseRTMDeopt && (nm->as_nmethod()->rtm_state() != ProfileRTM)) {
23491
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1866
        trap_mdo->atomic_set_rtm_state(ProfileRTM);
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1867
      }
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  1868
#endif
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1869
      // For code aging we count traps separately here, using make_not_entrant()
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1870
      // as a guard against simultaneous deopts in multiple threads.
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1871
      if (reason == Reason_tenured && trap_mdo != NULL) {
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1872
        trap_mdo->inc_tenure_traps();
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
  1873
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1874
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1875
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1876
    if (inc_recompile_count) {
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1877
      trap_mdo->inc_overflow_recompile_count();
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1878
      if ((uint)trap_mdo->overflow_recompile_count() >
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1879
          (uint)PerBytecodeRecompilationCutoff) {
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1880
        // Give up on the method containing the bad BCI.
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1881
        if (trap_method() == nm->method()) {
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1882
          make_not_compilable = true;
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1883
        } else {
15479
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 14633
diff changeset
  1884
          trap_method->set_not_compilable(CompLevel_full_optimization, true, "overflow_recompile_count > PerBytecodeRecompilationCutoff");
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1885
          // But give grace to the enclosing nm->method().
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1886
        }
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1887
      }
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1888
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1889
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1890
    // Reprofile
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1891
    if (reprofile) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1892
      CompilationPolicy::policy()->reprofile(trap_scope, nm->is_osr_method());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1893
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1894
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1895
    // Give up compiling
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1896
    if (make_not_compilable && !nm->method()->is_not_compilable(CompLevel_full_optimization)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1897
      assert(make_not_entrant, "consistent");
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1898
      nm->method()->set_not_compilable(CompLevel_full_optimization);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1899
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1900
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1901
  } // Free marked resources
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1902
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1903
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1904
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1905
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1906
ProfileData*
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1907
Deoptimization::query_update_method_data(MethodData* trap_mdo,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1908
                                         int trap_bci,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1909
                                         Deoptimization::DeoptReason reason,
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1910
                                         bool update_total_trap_count,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1911
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1912
                                         bool is_osr,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1913
#endif
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1914
                                         Method* compiled_method,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1915
                                         //outputs:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1916
                                         uint& ret_this_trap_count,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1917
                                         bool& ret_maybe_prior_trap,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1918
                                         bool& ret_maybe_prior_recompile) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1919
  bool maybe_prior_trap = false;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1920
  bool maybe_prior_recompile = false;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1921
  uint this_trap_count = 0;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1922
  if (update_total_trap_count) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1923
    uint idx = reason;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1924
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1925
    if (is_osr) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1926
      idx += Reason_LIMIT;
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1927
    }
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1928
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1929
    uint prior_trap_count = trap_mdo->trap_count(idx);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1930
    this_trap_count  = trap_mdo->inc_trap_count(idx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1931
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1932
    // If the runtime cannot find a place to store trap history,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1933
    // it is estimated based on the general condition of the method.
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1934
    // If the method has ever been recompiled, or has ever incurred
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1935
    // a trap with the present reason , then this BCI is assumed
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1936
    // (pessimistically) to be the culprit.
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1937
    maybe_prior_trap      = (prior_trap_count != 0);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1938
    maybe_prior_recompile = (trap_mdo->decompile_count() != 0);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1939
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1940
  ProfileData* pdata = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1941
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1942
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1943
  // For reasons which are recorded per bytecode, we check per-BCI data.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1944
  DeoptReason per_bc_reason = reason_recorded_per_bytecode_if_any(reason);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1945
  assert(per_bc_reason != Reason_none || update_total_trap_count, "must be");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1946
  if (per_bc_reason != Reason_none) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1947
    // Find the profile data for this BCI.  If there isn't one,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1948
    // try to allocate one from the MDO's set of spares.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1949
    // This will let us detect a repeated trap at this point.
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1950
    pdata = trap_mdo->allocate_bci_to_data(trap_bci, reason_is_speculate(reason) ? compiled_method : NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1951
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1952
    if (pdata != NULL) {
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1953
      if (reason_is_speculate(reason) && !pdata->is_SpeculativeTrapData()) {
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1954
        if (LogCompilation && xtty != NULL) {
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1955
          ttyLocker ttyl;
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1956
          // no more room for speculative traps in this MDO
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1957
          xtty->elem("speculative_traps_oom");
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1958
        }
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1959
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1960
      // Query the trap state of this profile datum.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1961
      int tstate0 = pdata->trap_state();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1962
      if (!trap_state_has_reason(tstate0, per_bc_reason))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1963
        maybe_prior_trap = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1964
      if (!trap_state_is_recompiled(tstate0))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1965
        maybe_prior_recompile = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1966
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1967
      // Update the trap state of this profile datum.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1968
      int tstate1 = tstate0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1969
      // Record the reason.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1970
      tstate1 = trap_state_add_reason(tstate1, per_bc_reason);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1971
      // Store the updated state on the MDO, for next time.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1972
      if (tstate1 != tstate0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1973
        pdata->set_trap_state(tstate1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1974
    } else {
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1975
      if (LogCompilation && xtty != NULL) {
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1976
        ttyLocker ttyl;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1977
        // Missing MDP?  Leave a small complaint in the log.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1978
        xtty->elem("missing_mdp bci='%d'", trap_bci);
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4752
diff changeset
  1979
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1980
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1981
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1982
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1983
  // Return results:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1984
  ret_this_trap_count = this_trap_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1985
  ret_maybe_prior_trap = maybe_prior_trap;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1986
  ret_maybe_prior_recompile = maybe_prior_recompile;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1987
  return pdata;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1988
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1989
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1990
void
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1991
Deoptimization::update_method_data_from_interpreter(MethodData* trap_mdo, int trap_bci, int reason) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1992
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1993
  // Ignored outputs:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1994
  uint ignore_this_trap_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1995
  bool ignore_maybe_prior_trap;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1996
  bool ignore_maybe_prior_recompile;
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  1997
  assert(!reason_is_speculate(reason), "reason speculate only used by compiler");
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  1998
  // JVMCI uses the total counts to determine if deoptimizations are happening too frequently -> do not adjust total counts
51073
34696f3aa22b 8206953: compiler/profiling/TestTypeProfiling.java fails when JVMCI build disabled
kvn
parents: 50858
diff changeset
  1999
  bool update_total_counts = true JVMCI_ONLY( && !UseJVMCICompiler);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2000
  query_update_method_data(trap_mdo, trap_bci,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2001
                           (DeoptReason)reason,
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2002
                           update_total_counts,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2003
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2004
                           false,
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2005
#endif
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  2006
                           NULL,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2007
                           ignore_this_trap_count,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2008
                           ignore_maybe_prior_trap,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2009
                           ignore_maybe_prior_recompile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2010
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2011
34173
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
  2012
Deoptimization::UnrollBlock* Deoptimization::uncommon_trap(JavaThread* thread, jint trap_request, jint exec_mode) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2013
  if (TraceDeoptimization) {
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2014
    tty->print("Uncommon trap ");
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2015
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2016
  // Still in Java no safepoints
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2017
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2018
    // This enters VM and may safepoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2019
    uncommon_trap_inner(thread, trap_request);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2020
  }
34173
01bb07d23a5b 8141133: [JVMCI] crash during safepoint deopt if rethrow_exception is set
twisti
parents: 33632
diff changeset
  2021
  return fetch_unroll_info_helper(thread, exec_mode);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2022
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2023
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2024
// Local derived constants.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2025
// Further breakdown of DataLayout::trap_state, as promised by DataLayout.
50577
bf7e2684cd0a 8204240: Extend MDO to allow more reasons to be recorded per bci
roland
parents: 49972
diff changeset
  2026
const int DS_REASON_MASK   = ((uint)DataLayout::trap_mask) >> 1;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2027
const int DS_RECOMPILE_BIT = DataLayout::trap_mask - DS_REASON_MASK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2028
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2029
//---------------------------trap_state_reason---------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2030
Deoptimization::DeoptReason
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2031
Deoptimization::trap_state_reason(int trap_state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2032
  // This assert provides the link between the width of DataLayout::trap_bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2033
  // and the encoding of "recorded" reasons.  It ensures there are enough
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2034
  // bits to store all needed reasons in the per-BCI MDO profile.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2035
  assert(DS_REASON_MASK >= Reason_RECORDED_LIMIT, "enough bits");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2036
  int recompile_bit = (trap_state & DS_RECOMPILE_BIT);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2037
  trap_state -= recompile_bit;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2038
  if (trap_state == DS_REASON_MASK) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2039
    return Reason_many;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2040
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2041
    assert((int)Reason_none == 0, "state=0 => Reason_none");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2042
    return (DeoptReason)trap_state;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2043
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2044
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2045
//-------------------------trap_state_has_reason-------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2046
int Deoptimization::trap_state_has_reason(int trap_state, int reason) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2047
  assert(reason_is_recorded_per_bytecode((DeoptReason)reason), "valid reason");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2048
  assert(DS_REASON_MASK >= Reason_RECORDED_LIMIT, "enough bits");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2049
  int recompile_bit = (trap_state & DS_RECOMPILE_BIT);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2050
  trap_state -= recompile_bit;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2051
  if (trap_state == DS_REASON_MASK) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2052
    return -1;  // true, unspecifically (bottom of state lattice)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2053
  } else if (trap_state == reason) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2054
    return 1;   // true, definitely
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2055
  } else if (trap_state == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2056
    return 0;   // false, definitely (top of state lattice)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2057
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2058
    return 0;   // false, definitely
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2059
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2060
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2061
//-------------------------trap_state_add_reason-------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2062
int Deoptimization::trap_state_add_reason(int trap_state, int reason) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2063
  assert(reason_is_recorded_per_bytecode((DeoptReason)reason) || reason == Reason_many, "valid reason");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2064
  int recompile_bit = (trap_state & DS_RECOMPILE_BIT);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2065
  trap_state -= recompile_bit;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2066
  if (trap_state == DS_REASON_MASK) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2067
    return trap_state + recompile_bit;     // already at state lattice bottom
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2068
  } else if (trap_state == reason) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2069
    return trap_state + recompile_bit;     // the condition is already true
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2070
  } else if (trap_state == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2071
    return reason + recompile_bit;          // no condition has yet been true
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2072
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2073
    return DS_REASON_MASK + recompile_bit;  // fall to state lattice bottom
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2074
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2075
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2076
//-----------------------trap_state_is_recompiled------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2077
bool Deoptimization::trap_state_is_recompiled(int trap_state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2078
  return (trap_state & DS_RECOMPILE_BIT) != 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2079
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2080
//-----------------------trap_state_set_recompiled-----------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2081
int Deoptimization::trap_state_set_recompiled(int trap_state, bool z) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2082
  if (z)  return trap_state |  DS_RECOMPILE_BIT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2083
  else    return trap_state & ~DS_RECOMPILE_BIT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2084
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2085
//---------------------------format_trap_state---------------------------------
20010
c66a7254680c 8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents: 17872
diff changeset
  2086
// This is used for debugging and diagnostics, including LogFile output.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2087
const char* Deoptimization::format_trap_state(char* buf, size_t buflen,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2088
                                              int trap_state) {
33794
41ef3dc95179 8140482: Various minor code improvements (runtime)
goetz
parents: 33611
diff changeset
  2089
  assert(buflen > 0, "sanity");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2090
  DeoptReason reason      = trap_state_reason(trap_state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2091
  bool        recomp_flag = trap_state_is_recompiled(trap_state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2092
  // Re-encode the state from its decoded components.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2093
  int decoded_state = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2094
  if (reason_is_recorded_per_bytecode(reason) || reason == Reason_many)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2095
    decoded_state = trap_state_add_reason(decoded_state, reason);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2096
  if (recomp_flag)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2097
    decoded_state = trap_state_set_recompiled(decoded_state, recomp_flag);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2098
  // If the state re-encodes properly, format it symbolically.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2099
  // Because this routine is used for debugging and diagnostics,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2100
  // be robust even if the state is a strange value.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2101
  size_t len;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2102
  if (decoded_state != trap_state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2103
    // Random buggy state that doesn't decode??
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2104
    len = jio_snprintf(buf, buflen, "#%d", trap_state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2105
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2106
    len = jio_snprintf(buf, buflen, "%s%s",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2107
                       trap_reason_name(reason),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2108
                       recomp_flag ? " recompiled" : "");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2109
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2110
  return buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2111
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2112
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2113
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2114
//--------------------------------statics--------------------------------------
24477
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2115
const char* Deoptimization::_trap_reason_name[] = {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2116
  // Note:  Keep this in sync. with enum DeoptReason.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2117
  "none",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2118
  "null_check",
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2119
  "null_assert" JVMCI_ONLY("_or_unreached0"),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2120
  "range_check",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2121
  "class_check",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2122
  "array_check",
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2123
  "intrinsic" JVMCI_ONLY("_or_type_checked_inlining"),
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2124
  "bimorphic" JVMCI_ONLY("_or_optimized_type_check"),
50623
5209d8a6303e 8203197: C2: consider all paths in loop body for loop predication
roland
parents: 50577
diff changeset
  2125
  "profile_predicate",
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2126
  "unloaded",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2127
  "uninitialized",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2128
  "unreached",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2129
  "unhandled",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2130
  "constraint",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2131
  "div0_check",
4643
61c659c91c57 6894779: Loop Predication for Loop Optimizer in C2
cfang
parents: 3261
diff changeset
  2132
  "age",
9446
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents: 9437
diff changeset
  2133
  "predicate",
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22876
diff changeset
  2134
  "loop_limit_check",
23491
f690330b10b9 8031320: Use Intel RTM instructions for locks
kvn
parents: 22916
diff changeset
  2135
  "speculate_class_check",
23525
e3eb08ead679 8031755: Type speculation should be used to optimize explicit null checks
roland
parents: 23491
diff changeset
  2136
  "speculate_null_check",
46542
73dd19b96b5d 8181211: C2: Use profiling data to optimize on/off heap unsafe accesses
roland
parents: 46407
diff changeset
  2137
  "speculate_null_assert",
24477
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2138
  "rtm_state_change",
24934
43a6fc13b7d4 8030976: Untaken paths should be more vigorously pruned at highest optimization level
rbackman
parents: 24477
diff changeset
  2139
  "unstable_if",
30183
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29084
diff changeset
  2140
  "unstable_fused_if",
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2141
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2142
  "aliasing",
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2143
  "transfer_to_interpreter",
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2144
  "not_compiled_exception_handler",
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2145
  "unresolved",
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2146
  "jsr_mismatch",
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2147
#endif
24477
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2148
  "tenured"
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2149
};
24477
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2150
const char* Deoptimization::_trap_action_name[] = {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2151
  // Note:  Keep this in sync. with enum DeoptAction.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2152
  "none",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2153
  "maybe_recompile",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2154
  "reinterpret",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2155
  "make_not_entrant",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2156
  "make_not_compilable"
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2157
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2158
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2159
const char* Deoptimization::trap_reason_name(int reason) {
24477
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2160
  // Check that every reason has a name
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2161
  STATIC_ASSERT(sizeof(_trap_reason_name)/sizeof(const char*) == Reason_LIMIT);
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2162
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2163
  if (reason == Reason_many)  return "many";
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2164
  if ((uint)reason < Reason_LIMIT)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2165
    return _trap_reason_name[reason];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2166
  static char buf[20];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2167
  sprintf(buf, "reason%d", reason);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2168
  return buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2169
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2170
const char* Deoptimization::trap_action_name(int action) {
24477
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2171
  // Check that every action has a name
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2172
  STATIC_ASSERT(sizeof(_trap_action_name)/sizeof(const char*) == Action_LIMIT);
d2442b4a080f 8043180: SIGSEGV in Events::log_deopt_message
iveresov
parents: 24442
diff changeset
  2173
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2174
  if ((uint)action < Action_LIMIT)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2175
    return _trap_action_name[action];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2176
  static char buf[20];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2177
  sprintf(buf, "action%d", action);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2178
  return buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2179
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2180
20010
c66a7254680c 8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents: 17872
diff changeset
  2181
// This is used for debugging and diagnostics, including LogFile output.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2182
const char* Deoptimization::format_trap_request(char* buf, size_t buflen,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2183
                                                int trap_request) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2184
  jint unloaded_class_index = trap_request_index(trap_request);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2185
  const char* reason = trap_reason_name(trap_request_reason(trap_request));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2186
  const char* action = trap_action_name(trap_request_action(trap_request));
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2187
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2188
  int debug_id = trap_request_debug_id(trap_request);
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2189
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2190
  size_t len;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2191
  if (unloaded_class_index < 0) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2192
    len = jio_snprintf(buf, buflen, "reason='%s' action='%s'" JVMCI_ONLY(" debug_id='%d'"),
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2193
                       reason, action
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2194
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2195
                       ,debug_id
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2196
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2197
                       );
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2198
  } else {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2199
    len = jio_snprintf(buf, buflen, "reason='%s' action='%s' index='%d'" JVMCI_ONLY(" debug_id='%d'"),
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2200
                       reason, action, unloaded_class_index
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2201
#if INCLUDE_JVMCI
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2202
                       ,debug_id
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2203
#endif
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 31593
diff changeset
  2204
                       );
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2205
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2206
  return buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2207
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2208
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2209
juint Deoptimization::_deoptimization_hist
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2210
        [Deoptimization::Reason_LIMIT]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2211
    [1 + Deoptimization::Action_LIMIT]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2212
        [Deoptimization::BC_CASE_LIMIT]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2213
  = {0};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2214
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2215
enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2216
  LSB_BITS = 8,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2217
  LSB_MASK = right_n_bits(LSB_BITS)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2218
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2219
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2220
void Deoptimization::gather_statistics(DeoptReason reason, DeoptAction action,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2221
                                       Bytecodes::Code bc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2222
  assert(reason >= 0 && reason < Reason_LIMIT, "oob");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2223
  assert(action >= 0 && action < Action_LIMIT, "oob");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2224
  _deoptimization_hist[Reason_none][0][0] += 1;  // total
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2225
  _deoptimization_hist[reason][0][0]      += 1;  // per-reason total
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2226
  juint* cases = _deoptimization_hist[reason][1+action];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2227
  juint* bc_counter_addr = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2228
  juint  bc_counter      = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2229
  // Look for an unused counter, or an exact match to this BC.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2230
  if (bc != Bytecodes::_illegal) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2231
    for (int bc_case = 0; bc_case < BC_CASE_LIMIT; bc_case++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2232
      juint* counter_addr = &cases[bc_case];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2233
      juint  counter = *counter_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2234
      if ((counter == 0 && bc_counter_addr == NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2235
          || (Bytecodes::Code)(counter & LSB_MASK) == bc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2236
        // this counter is either free or is already devoted to this BC
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2237
        bc_counter_addr = counter_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2238
        bc_counter = counter | bc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2239
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2240
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2241
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2242
  if (bc_counter_addr == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2243
    // Overflow, or no given bytecode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2244
    bc_counter_addr = &cases[BC_CASE_LIMIT-1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2245
    bc_counter = (*bc_counter_addr & ~LSB_MASK);  // clear LSB
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2246
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2247
  *bc_counter_addr = bc_counter + (1 << LSB_BITS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2248
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2249
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2250
jint Deoptimization::total_deoptimization_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2251
  return _deoptimization_hist[Reason_none][0][0];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2252
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2253
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2254
void Deoptimization::print_statistics() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2255
  juint total = total_deoptimization_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2256
  juint account = total;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2257
  if (total != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2258
    ttyLocker ttyl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2259
    if (xtty != NULL)  xtty->head("statistics type='deoptimization'");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2260
    tty->print_cr("Deoptimization traps recorded:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2261
    #define PRINT_STAT_LINE(name, r) \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2262
      tty->print_cr("  %4d (%4.1f%%) %s", (int)(r), ((r) * 100.0) / total, name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2263
    PRINT_STAT_LINE("total", total);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2264
    // For each non-zero entry in the histogram, print the reason,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2265
    // the action, and (if specifically known) the type of bytecode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2266
    for (int reason = 0; reason < Reason_LIMIT; reason++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2267
      for (int action = 0; action < Action_LIMIT; action++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2268
        juint* cases = _deoptimization_hist[reason][1+action];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2269
        for (int bc_case = 0; bc_case < BC_CASE_LIMIT; bc_case++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2270
          juint counter = cases[bc_case];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2271
          if (counter != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2272
            char name[1*K];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2273
            Bytecodes::Code bc = (Bytecodes::Code)(counter & LSB_MASK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2274
            if (bc_case == BC_CASE_LIMIT && (int)bc == 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2275
              bc = Bytecodes::_illegal;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2276
            sprintf(name, "%s/%s/%s",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2277
                    trap_reason_name(reason),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2278
                    trap_action_name(action),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2279
                    Bytecodes::is_defined(bc)? Bytecodes::name(bc): "other");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2280
            juint r = counter >> LSB_BITS;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2281
            tty->print_cr("  %40s: " UINT32_FORMAT " (%.1f%%)", name, r, (r * 100.0) / total);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2282
            account -= r;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2283
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2284
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2285
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2286
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2287
    if (account != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2288
      PRINT_STAT_LINE("unaccounted", account);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2289
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2290
    #undef PRINT_STAT_LINE
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2291
    if (xtty != NULL)  xtty->tail("statistics");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2292
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2293
}
47799
1772ebf07d1f 8152470: Add COMPILER2_OR_JVMCI definition
jcm
parents: 47794
diff changeset
  2294
#else // COMPILER2_OR_JVMCI
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2295
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2296
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2297
// Stubs for C1 only system.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2298
bool Deoptimization::trap_state_is_recompiled(int trap_state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2299
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2300
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2301
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2302
const char* Deoptimization::trap_reason_name(int reason) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2303
  return "unknown";
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2304
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2305
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2306
void Deoptimization::print_statistics() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2307
  // no output
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2308
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2309
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2310
void
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2311
Deoptimization::update_method_data_from_interpreter(MethodData* trap_mdo, int trap_bci, int reason) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2312
  // no udpate
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2313
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2314
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2315
int Deoptimization::trap_state_has_reason(int trap_state, int reason) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2316
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2317
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2318
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2319
void Deoptimization::gather_statistics(DeoptReason reason, DeoptAction action,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2320
                                       Bytecodes::Code bc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2321
  // no update
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2322
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2323
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2324
const char* Deoptimization::format_trap_state(char* buf, size_t buflen,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2325
                                              int trap_state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2326
  jio_snprintf(buf, buflen, "#%d", trap_state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2327
  return buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2328
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2329
47799
1772ebf07d1f 8152470: Add COMPILER2_OR_JVMCI definition
jcm
parents: 47794
diff changeset
  2330
#endif // COMPILER2_OR_JVMCI