hotspot/src/cpu/x86/vm/interp_masm_x86_32.cpp
author xlu
Wed, 24 Dec 2008 13:06:09 -0800
changeset 1888 bbf498fb4354
parent 1217 5eb97f366a6a
child 1909 952b42dad1fc
permissions -rw-r--r--
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t Summary: Avoid casting between int32_t and intptr_t specifically for MasmAssembler::movptr in 32 bit platforms. Reviewed-by: jrose, kvn
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/*
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 * Copyright 1997-2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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#include "incls/_precompiled.incl"
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#include "incls/_interp_masm_x86_32.cpp.incl"
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// Implementation of InterpreterMacroAssembler
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#ifdef CC_INTERP
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void InterpreterMacroAssembler::get_method(Register reg) {
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  movptr(reg, Address(rbp, -(sizeof(BytecodeInterpreter) + 2 * wordSize)));
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  movptr(reg, Address(reg, byte_offset_of(BytecodeInterpreter, _method)));
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}
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#endif // CC_INTERP
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#ifndef CC_INTERP
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void InterpreterMacroAssembler::call_VM_leaf_base(
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  address entry_point,
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  int     number_of_arguments
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) {
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  // interpreter specific
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  //
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  // Note: No need to save/restore bcp & locals (rsi & rdi) pointer
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  //       since these are callee saved registers and no blocking/
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  //       GC can happen in leaf calls.
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  // Further Note: DO NOT save/restore bcp/locals. If a caller has
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  // already saved them so that it can use rsi/rdi as temporaries
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  // then a save/restore here will DESTROY the copy the caller
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  // saved! There used to be a save_bcp() that only happened in
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  // the ASSERT path (no restore_bcp). Which caused bizarre failures
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  // when jvm built with ASSERTs.
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#ifdef ASSERT
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  { Label L;
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    cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
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    jcc(Assembler::equal, L);
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    stop("InterpreterMacroAssembler::call_VM_leaf_base: last_sp != NULL");
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    bind(L);
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  }
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#endif
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  // super call
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  MacroAssembler::call_VM_leaf_base(entry_point, number_of_arguments);
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  // interpreter specific
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  // Used to ASSERT that rsi/rdi were equal to frame's bcp/locals
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  // but since they may not have been saved (and we don't want to
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  // save them here (see note above) the assert is invalid.
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}
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void InterpreterMacroAssembler::call_VM_base(
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  Register oop_result,
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  Register java_thread,
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  Register last_java_sp,
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  address  entry_point,
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  int      number_of_arguments,
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  bool     check_exceptions
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) {
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#ifdef ASSERT
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  { Label L;
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    cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
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    jcc(Assembler::equal, L);
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    stop("InterpreterMacroAssembler::call_VM_base: last_sp != NULL");
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    bind(L);
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  }
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#endif /* ASSERT */
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  // interpreter specific
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  //
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  // Note: Could avoid restoring locals ptr (callee saved) - however doesn't
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  //       really make a difference for these runtime calls, since they are
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  //       slow anyway. Btw., bcp must be saved/restored since it may change
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  //       due to GC.
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  assert(java_thread == noreg , "not expecting a precomputed java thread");
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  save_bcp();
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  // super call
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  MacroAssembler::call_VM_base(oop_result, java_thread, last_java_sp, entry_point, number_of_arguments, check_exceptions);
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  // interpreter specific
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  restore_bcp();
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  restore_locals();
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}
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void InterpreterMacroAssembler::check_and_handle_popframe(Register java_thread) {
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  if (JvmtiExport::can_pop_frame()) {
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    Label L;
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    // Initiate popframe handling only if it is not already being processed.  If the flag
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    // has the popframe_processing bit set, it means that this code is called *during* popframe
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    // handling - we don't want to reenter.
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    Register pop_cond = java_thread;  // Not clear if any other register is available...
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    movl(pop_cond, Address(java_thread, JavaThread::popframe_condition_offset()));
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    testl(pop_cond, JavaThread::popframe_pending_bit);
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    jcc(Assembler::zero, L);
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    testl(pop_cond, JavaThread::popframe_processing_bit);
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    jcc(Assembler::notZero, L);
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    // Call Interpreter::remove_activation_preserving_args_entry() to get the
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    // address of the same-named entrypoint in the generated interpreter code.
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    call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_preserving_args_entry));
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    jmp(rax);
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    bind(L);
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    get_thread(java_thread);
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  }
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}
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void InterpreterMacroAssembler::load_earlyret_value(TosState state) {
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  get_thread(rcx);
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  movl(rcx, Address(rcx, JavaThread::jvmti_thread_state_offset()));
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  const Address tos_addr (rcx, JvmtiThreadState::earlyret_tos_offset());
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  const Address oop_addr (rcx, JvmtiThreadState::earlyret_oop_offset());
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  const Address val_addr (rcx, JvmtiThreadState::earlyret_value_offset());
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  const Address val_addr1(rcx, JvmtiThreadState::earlyret_value_offset()
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                             + in_ByteSize(wordSize));
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  switch (state) {
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    case atos: movptr(rax, oop_addr);
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               movptr(oop_addr, NULL_WORD);
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               verify_oop(rax, state);                break;
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    case ltos:
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               movl(rdx, val_addr1);               // fall through
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    case btos:                                     // fall through
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    case ctos:                                     // fall through
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    case stos:                                     // fall through
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    case itos: movl(rax, val_addr);                   break;
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    case ftos: fld_s(val_addr);                       break;
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    case dtos: fld_d(val_addr);                       break;
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    case vtos: /* nothing to do */                    break;
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    default  : ShouldNotReachHere();
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  }
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  // Clean up tos value in the thread object
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  movl(tos_addr,  (int32_t) ilgl);
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  movptr(val_addr,  NULL_WORD);
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  NOT_LP64(movl(val_addr1, (int32_t)NULL_WORD));
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}
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void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) {
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  if (JvmtiExport::can_force_early_return()) {
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    Label L;
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    Register tmp = java_thread;
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    movptr(tmp, Address(tmp, JavaThread::jvmti_thread_state_offset()));
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    testptr(tmp, tmp);
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    jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit;
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    // Initiate earlyret handling only if it is not already being processed.
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    // If the flag has the earlyret_processing bit set, it means that this code
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    // is called *during* earlyret handling - we don't want to reenter.
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    movl(tmp, Address(tmp, JvmtiThreadState::earlyret_state_offset()));
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    cmpl(tmp, JvmtiThreadState::earlyret_pending);
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    jcc(Assembler::notEqual, L);
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    // Call Interpreter::remove_activation_early_entry() to get the address of the
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    // same-named entrypoint in the generated interpreter code.
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    get_thread(java_thread);
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    movptr(tmp, Address(java_thread, JavaThread::jvmti_thread_state_offset()));
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    pushl(Address(tmp, JvmtiThreadState::earlyret_tos_offset()));
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    call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), 1);
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    jmp(rax);
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    bind(L);
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    get_thread(java_thread);
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  }
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}
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void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset) {
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  assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode");
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  movl(reg, Address(rsi, bcp_offset));
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  bswapl(reg);
1
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  shrl(reg, 16);
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}
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void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset) {
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  assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
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  assert(cache != index, "must use different registers");
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  load_unsigned_word(index, Address(rsi, bcp_offset));
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  movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
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  assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below");
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  shlptr(index, 2); // convert from field index to ConstantPoolCacheEntry index
1
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}
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void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset) {
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  assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
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  assert(cache != tmp, "must use different register");
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  load_unsigned_word(tmp, Address(rsi, bcp_offset));
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  assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below");
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                               // convert from field index to ConstantPoolCacheEntry index
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                               // and from word offset to byte offset
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  shll(tmp, 2 + LogBytesPerWord);
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  movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
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                               // skip past the header
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  addptr(cache, in_bytes(constantPoolCacheOopDesc::base_offset()));
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  addptr(cache, tmp);            // construct pointer to cache entry
1
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}
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  // Generate a subtype check: branch to ok_is_subtype if sub_klass is
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  // a subtype of super_klass.  EAX holds the super_klass.  Blows ECX.
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  // Resets EDI to locals.  Register sub_klass cannot be any of the above.
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void InterpreterMacroAssembler::gen_subtype_check( Register Rsub_klass, Label &ok_is_subtype ) {
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  assert( Rsub_klass != rax, "rax, holds superklass" );
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  assert( Rsub_klass != rcx, "rcx holds 2ndary super array length" );
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  assert( Rsub_klass != rdi, "rdi holds 2ndary super array scan ptr" );
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  Label not_subtype, loop;
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  // Profile the not-null value's klass.
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  profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, rdi
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  // Load the super-klass's check offset into ECX
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  movl( rcx, Address(rax, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes() ) );
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  // Load from the sub-klass's super-class display list, or a 1-word cache of
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  // the secondary superclass list, or a failing value with a sentinel offset
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  // if the super-klass is an interface or exceptionally deep in the Java
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  // hierarchy and we have to scan the secondary superclass list the hard way.
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  // See if we get an immediate positive hit
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  cmpptr( rax, Address(Rsub_klass,rcx,Address::times_1) );
1
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  jcc( Assembler::equal,ok_is_subtype );
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  // Check for immediate negative hit
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  cmpl( rcx, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() );
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  jcc( Assembler::notEqual, not_subtype );
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  // Check for self
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  cmpptr( Rsub_klass, rax );
1
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  jcc( Assembler::equal, ok_is_subtype );
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   245
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  // Now do a linear scan of the secondary super-klass chain.
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  movptr( rdi, Address(Rsub_klass, sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes()) );
1
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  // EDI holds the objArrayOop of secondary supers.
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  movl( rcx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));// Load the array length
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  // Skip to start of data; also clear Z flag incase ECX is zero
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  addptr( rdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT) );
1
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  // Scan ECX words at [EDI] for occurance of EAX
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  // Set NZ/Z based on last compare
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  repne_scan();
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  restore_locals();           // Restore EDI; Must not blow flags
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  // Not equal?
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  jcc( Assembler::notEqual, not_subtype );
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  // Must be equal but missed in cache.  Update cache.
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  movptr( Address(Rsub_klass, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes()), rax );
1
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  jmp( ok_is_subtype );
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   261
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  bind(not_subtype);
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  profile_typecheck_failed(rcx); // blows rcx
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}
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void InterpreterMacroAssembler::f2ieee() {
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  if (IEEEPrecision) {
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    fstp_s(Address(rsp, 0));
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    fld_s(Address(rsp, 0));
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  }
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}
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void InterpreterMacroAssembler::d2ieee() {
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  if (IEEEPrecision) {
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    fstp_d(Address(rsp, 0));
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    fld_d(Address(rsp, 0));
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  }
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}
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// Java Expression Stack
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#ifdef ASSERT
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void InterpreterMacroAssembler::verify_stack_tag(frame::Tag t) {
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  if (TaggedStackInterpreter) {
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    Label okay;
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    cmpptr(Address(rsp, wordSize), (int32_t)t);
1
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    jcc(Assembler::equal, okay);
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    // Also compare if the stack value is zero, then the tag might
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    // not have been set coming from deopt.
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    cmpptr(Address(rsp, 0), 0);
1
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    jcc(Assembler::equal, okay);
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    stop("Java Expression stack tag value is bad");
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    bind(okay);
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  }
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}
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#endif // ASSERT
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   298
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void InterpreterMacroAssembler::pop_ptr(Register r) {
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  debug_only(verify_stack_tag(frame::TagReference));
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  pop(r);
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  if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize);
1
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}
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void InterpreterMacroAssembler::pop_ptr(Register r, Register tag) {
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  pop(r);
1
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  // Tag may not be reference for jsr, can be returnAddress
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  if (TaggedStackInterpreter) pop(tag);
1
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}
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   310
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   311
void InterpreterMacroAssembler::pop_i(Register r) {
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  debug_only(verify_stack_tag(frame::TagValue));
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  pop(r);
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  if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize);
1
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}
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   316
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   317
void InterpreterMacroAssembler::pop_l(Register lo, Register hi) {
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  debug_only(verify_stack_tag(frame::TagValue));
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  pop(lo);
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  if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize);
1
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  debug_only(verify_stack_tag(frame::TagValue));
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  pop(hi);
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  if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize);
1
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}
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   325
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void InterpreterMacroAssembler::pop_f() {
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   327
  debug_only(verify_stack_tag(frame::TagValue));
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  fld_s(Address(rsp, 0));
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  addptr(rsp, 1 * wordSize);
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  if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize);
1
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}
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   332
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   333
void InterpreterMacroAssembler::pop_d() {
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  // Write double to stack contiguously and load into ST0
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  pop_dtos_to_rsp();
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  fld_d(Address(rsp, 0));
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  addptr(rsp, 2 * wordSize);
1
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}
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   339
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   340
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// Pop the top of the java expression stack to execution stack (which
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// happens to be the same place).
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   343
void InterpreterMacroAssembler::pop_dtos_to_rsp() {
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  if (TaggedStackInterpreter) {
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    // Pop double value into scratch registers
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    debug_only(verify_stack_tag(frame::TagValue));
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    pop(rax);
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    addptr(rsp, 1* wordSize);
1
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    debug_only(verify_stack_tag(frame::TagValue));
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    pop(rdx);
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    addptr(rsp, 1* wordSize);
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    push(rdx);
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    push(rax);
1
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  }
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}
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   356
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   357
void InterpreterMacroAssembler::pop_ftos_to_rsp() {
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   358
  if (TaggedStackInterpreter) {
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   359
    debug_only(verify_stack_tag(frame::TagValue));
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    pop(rax);
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    addptr(rsp, 1 * wordSize);
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    push(rax);  // ftos is at rsp
1
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parents:
diff changeset
   363
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   364
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   365
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
void InterpreterMacroAssembler::pop(TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
  switch (state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
    case atos: pop_ptr(rax);                                 break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
    case btos:                                               // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
    case ctos:                                               // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
    case stos:                                               // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
    case itos: pop_i(rax);                                   break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
    case ltos: pop_l(rax, rdx);                              break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
    case ftos: pop_f();                                      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
    case dtos: pop_d();                                      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
    case vtos: /* nothing to do */                           break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
    default  : ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
  verify_oop(rax, state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
void InterpreterMacroAssembler::push_ptr(Register r) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   383
  if (TaggedStackInterpreter) push(frame::TagReference);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   384
  push(r);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
void InterpreterMacroAssembler::push_ptr(Register r, Register tag) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   388
  if (TaggedStackInterpreter) push(tag);  // tag first
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   389
  push(r);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
void InterpreterMacroAssembler::push_i(Register r) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   393
  if (TaggedStackInterpreter) push(frame::TagValue);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   394
  push(r);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
void InterpreterMacroAssembler::push_l(Register lo, Register hi) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   398
  if (TaggedStackInterpreter) push(frame::TagValue);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   399
  push(hi);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   400
  if (TaggedStackInterpreter) push(frame::TagValue);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   401
  push(lo);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
void InterpreterMacroAssembler::push_f() {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   405
  if (TaggedStackInterpreter) push(frame::TagValue);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
  // Do not schedule for no AGI! Never write beyond rsp!
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   407
  subptr(rsp, 1 * wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
  fstp_s(Address(rsp, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
void InterpreterMacroAssembler::push_d(Register r) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
  if (TaggedStackInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
    // Double values are stored as:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
    //   tag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
    //   high
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
    //   tag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
    //   low
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   418
    push(frame::TagValue);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   419
    subptr(rsp, 3 * wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
    fstp_d(Address(rsp, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
    // move high word up to slot n-1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
    movl(r, Address(rsp, 1*wordSize));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
    movl(Address(rsp, 2*wordSize), r);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
    // move tag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
    movl(Address(rsp, 1*wordSize), frame::TagValue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
    // Do not schedule for no AGI! Never write beyond rsp!
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   428
    subptr(rsp, 2 * wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
    fstp_d(Address(rsp, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
void InterpreterMacroAssembler::push(TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
  verify_oop(rax, state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
  switch (state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
    case atos: push_ptr(rax); break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
    case btos:                                               // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
    case ctos:                                               // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
    case stos:                                               // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
    case itos: push_i(rax);                                    break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
    case ltos: push_l(rax, rdx);                               break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
    case ftos: push_f();                                       break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
    case dtos: push_d(rax);                                    break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
    case vtos: /* nothing to do */                             break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
    default  : ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
// Tagged stack helpers for swap and dup
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
void InterpreterMacroAssembler::load_ptr_and_tag(int n, Register val,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
                                                 Register tag) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   454
  movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n)));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
  if (TaggedStackInterpreter) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   456
    movptr(tag, Address(rsp, Interpreter::expr_tag_offset_in_bytes(n)));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
void InterpreterMacroAssembler::store_ptr_and_tag(int n, Register val,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
                                                  Register tag) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   462
  movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
  if (TaggedStackInterpreter) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   464
    movptr(Address(rsp, Interpreter::expr_tag_offset_in_bytes(n)), tag);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
// Tagged local support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
void InterpreterMacroAssembler::tag_local(frame::Tag tag, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
  if (TaggedStackInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
    if (tag == frame::TagCategory2) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   473
      movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n+1)), (int32_t)frame::TagValue);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   474
      movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)frame::TagValue);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
    } else {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   476
      movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)tag);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
void InterpreterMacroAssembler::tag_local(frame::Tag tag, Register idx) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  if (TaggedStackInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
    if (tag == frame::TagCategory2) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   484
      movptr(Address(rdi, idx, Interpreter::stackElementScale(),
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   485
                  Interpreter::local_tag_offset_in_bytes(1)), (int32_t)frame::TagValue);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   486
      movptr(Address(rdi, idx, Interpreter::stackElementScale(),
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   487
                    Interpreter::local_tag_offset_in_bytes(0)), (int32_t)frame::TagValue);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
    } else {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   489
      movptr(Address(rdi, idx, Interpreter::stackElementScale(),
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   490
                               Interpreter::local_tag_offset_in_bytes(0)), (int32_t)tag);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
void InterpreterMacroAssembler::tag_local(Register tag, Register idx) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
  if (TaggedStackInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
    // can only be TagValue or TagReference
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   498
    movptr(Address(rdi, idx, Interpreter::stackElementScale(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
                           Interpreter::local_tag_offset_in_bytes(0)), tag);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
void InterpreterMacroAssembler::tag_local(Register tag, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
  if (TaggedStackInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
    // can only be TagValue or TagReference
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   507
    movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), tag);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
void InterpreterMacroAssembler::verify_local_tag(frame::Tag tag, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
  if (TaggedStackInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
     frame::Tag t = tag;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
    if (tag == frame::TagCategory2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
      Label nbl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
      t = frame::TagValue;  // change to what is stored in locals
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   518
      cmpptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n+1)), (int32_t)t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
      jcc(Assembler::equal, nbl);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
      stop("Local tag is bad for long/double");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
      bind(nbl);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
    Label notBad;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   524
    cmpptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
    jcc(Assembler::equal, notBad);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
    // Also compare if the local value is zero, then the tag might
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
    // not have been set coming from deopt.
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   528
    cmpptr(Address(rdi, Interpreter::local_offset_in_bytes(n)), 0);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
    jcc(Assembler::equal, notBad);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
    stop("Local tag is bad");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
    bind(notBad);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
void InterpreterMacroAssembler::verify_local_tag(frame::Tag tag, Register idx) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
  if (TaggedStackInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
    frame::Tag t = tag;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
    if (tag == frame::TagCategory2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
      Label nbl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
      t = frame::TagValue;  // change to what is stored in locals
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   541
      cmpptr(Address(rdi, idx, Interpreter::stackElementScale(),
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   542
                  Interpreter::local_tag_offset_in_bytes(1)), (int32_t)t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
      jcc(Assembler::equal, nbl);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
      stop("Local tag is bad for long/double");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
      bind(nbl);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
    Label notBad;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
    cmpl(Address(rdi, idx, Interpreter::stackElementScale(),
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   549
                  Interpreter::local_tag_offset_in_bytes(0)), (int32_t)t);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
    jcc(Assembler::equal, notBad);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
    // Also compare if the local value is zero, then the tag might
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
    // not have been set coming from deopt.
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   553
    cmpptr(Address(rdi, idx, Interpreter::stackElementScale(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
                  Interpreter::local_offset_in_bytes(0)), 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
    jcc(Assembler::equal, notBad);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
    stop("Local tag is bad");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
    bind(notBad);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
#endif // ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  MacroAssembler::call_VM_leaf_base(entry_point, 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   569
  push(arg_1);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  MacroAssembler::call_VM_leaf_base(entry_point, 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   575
  push(arg_2);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   576
  push(arg_1);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
  MacroAssembler::call_VM_leaf_base(entry_point, 2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   582
  push(arg_3);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   583
  push(arg_2);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   584
  push(arg_1);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  MacroAssembler::call_VM_leaf_base(entry_point, 3);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
// Jump to from_interpreted entry of a call unless single stepping is possible
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
// in this thread in which case we must call the i2i entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  // set sender sp
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   593
  lea(rsi, Address(rsp, wordSize));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  // record last_sp
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   595
  movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), rsi);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  if (JvmtiExport::can_post_interpreter_events()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
    Label run_compiled_code;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
    // JVMTI events, such as single-stepping, are implemented partly by avoiding running
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
    // compiled code in threads for which the event is enabled.  Check here for
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
    // interp_only_mode if these events CAN be enabled.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
    get_thread(temp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
    // interp_only is an int, on little endian it is sufficient to test the byte only
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
    // Is a cmpl faster (ce
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
    cmpb(Address(temp, JavaThread::interp_only_mode_offset()), 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
    jcc(Assembler::zero, run_compiled_code);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
    jmp(Address(method, methodOopDesc::interpreter_entry_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
    bind(run_compiled_code);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  jmp(Address(method, methodOopDesc::from_interpreted_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
// The following two routines provide a hook so that an implementation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
// can schedule the dispatch in two parts.  Intel does not do this.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
  // Nothing Intel-specific to be done here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
  dispatch_next(state, step);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
void InterpreterMacroAssembler::dispatch_base(TosState state, address* table,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
                                              bool verifyoop) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
  verify_FPU(1, state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
  if (VerifyActivationFrameSize) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
    Label L;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   631
    mov(rcx, rbp);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   632
    subptr(rcx, rsp);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
    int min_frame_size = (frame::link_offset - frame::interpreter_frame_initial_sp_offset) * wordSize;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   634
    cmpptr(rcx, min_frame_size);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
    jcc(Assembler::greaterEqual, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
    stop("broken stack frame");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
    bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  if (verifyoop) verify_oop(rax, state);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   640
  Address index(noreg, rbx, Address::times_ptr);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
  ExternalAddress tbl((address)table);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
  ArrayAddress dispatch(tbl, index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
  jump(dispatch);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
void InterpreterMacroAssembler::dispatch_only(TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
  dispatch_base(state, Interpreter::dispatch_table(state));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
void InterpreterMacroAssembler::dispatch_only_normal(TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
  dispatch_base(state, Interpreter::normal_table(state));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
  dispatch_base(state, Interpreter::normal_table(state), false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
void InterpreterMacroAssembler::dispatch_next(TosState state, int step) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  // load next bytecode (load before advancing rsi to prevent AGI)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
  load_unsigned_byte(rbx, Address(rsi, step));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
  // advance rsi
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
  increment(rsi, step);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
  dispatch_base(state, Interpreter::dispatch_table(state));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
  // load current bytecode
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
  load_unsigned_byte(rbx, Address(rsi, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
  dispatch_base(state, table);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
// remove activation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
// Unlock the receiver if this is a synchronized method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
// Unlock any Java monitors from syncronized blocks.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
// Remove the activation from the stack.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
// If there are locked Java monitors
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
//    If throw_monitor_exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
//       throws IllegalMonitorStateException
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
//    Else if install_monitor_exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
//       installs IllegalMonitorStateException
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
//    Else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
//       no error processing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
void InterpreterMacroAssembler::remove_activation(TosState state, Register ret_addr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
                                                  bool throw_monitor_exception,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
                                                  bool install_monitor_exception,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
                                                  bool notify_jvmdi) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
  // Note: Registers rax, rdx and FPU ST(0) may be in use for the result
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  // check if synchronized method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
  Label unlocked, unlock, no_unlock;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
  get_thread(rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
  const Address do_not_unlock_if_synchronized(rcx,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
    in_bytes(JavaThread::do_not_unlock_if_synchronized_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
  movbool(rbx, do_not_unlock_if_synchronized);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   702
  mov(rdi,rbx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
  movbool(do_not_unlock_if_synchronized, false); // reset the flag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   705
  movptr(rbx, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); // get method access flags
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
  movl(rcx, Address(rbx, methodOopDesc::access_flags_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
  testl(rcx, JVM_ACC_SYNCHRONIZED);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
  jcc(Assembler::zero, unlocked);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
  // Don't unlock anything if the _do_not_unlock_if_synchronized flag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
  // is set.
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   713
  mov(rcx,rdi);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
  testbool(rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
  jcc(Assembler::notZero, no_unlock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
  // unlock monitor
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
  push(state);                                   // save result
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
  // BasicObjectLock will be first in list, since this is a synchronized method. However, need
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
  // to check that the object has not been unlocked by an explicit monitorexit bytecode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
  const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock));
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   723
  lea   (rdx, monitor);                          // address of first monitor
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   725
  movptr (rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   726
  testptr(rax, rax);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   727
  jcc    (Assembler::notZero, unlock);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
  pop(state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
  if (throw_monitor_exception) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
    empty_FPU_stack();  // remove possible return value from FPU-stack, otherwise stack could overflow
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
    // Entry already unlocked, need to throw exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
    call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
    should_not_reach_here();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
    // Monitor already unlocked during a stack unroll.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
    // If requested, install an illegal_monitor_state_exception.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
    // Continue with stack unrolling.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
    if (install_monitor_exception) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
      empty_FPU_stack();  // remove possible return value from FPU-stack, otherwise stack could overflow
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
      call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
    jmp(unlocked);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
  bind(unlock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
  unlock_object(rdx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
  pop(state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
  // Check that for block-structured locking (i.e., that all locked objects has been unlocked)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
  bind(unlocked);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  // rax, rdx: Might contain return value
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
  // Check that all monitors are unlocked
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
    Label loop, exception, entry, restart;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
    const int entry_size               = frame::interpreter_frame_monitor_size()           * wordSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
    const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
    const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset        * wordSize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
    bind(restart);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   764
    movptr(rcx, monitor_block_top);           // points to current entry, starting with top-most entry
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   765
    lea(rbx, monitor_block_bot);              // points to word before bottom of monitor block
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
    jmp(entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
    // Entry already locked, need to throw exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
    bind(exception);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
    if (throw_monitor_exception) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
      empty_FPU_stack();  // remove possible return value from FPU-stack, otherwise stack could overflow
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
      // Throw exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
      call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
      should_not_reach_here();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
      // Stack unrolling. Unlock object and install illegal_monitor_exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
      // Unlock does not block, so don't have to worry about the frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
      push(state);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   782
      mov(rdx, rcx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
      unlock_object(rdx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
      pop(state);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
      if (install_monitor_exception) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
        empty_FPU_stack();  // remove possible return value from FPU-stack, otherwise stack could overflow
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
        call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
      jmp(restart);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
    bind(loop);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   795
    cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD);  // check if current entry is used
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
    jcc(Assembler::notEqual, exception);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   798
    addptr(rcx, entry_size);                     // otherwise advance to next entry
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
    bind(entry);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   800
    cmpptr(rcx, rbx);                            // check if bottom reached
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
    jcc(Assembler::notEqual, loop);              // if not at bottom then check this entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
  bind(no_unlock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
  // jvmti support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
  if (notify_jvmdi) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
    notify_method_exit(state, NotifyJVMTI);     // preserve TOSCA
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
    notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
  // remove activation
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   814
  movptr(rbx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
  leave();                                     // remove frame anchor
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   816
  pop(ret_addr);                               // get return address
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   817
  mov(rsp, rbx);                               // set sp to sender sp
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
  if (UseSSE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
    // float and double are returned in xmm register in SSE-mode
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
    if (state == ftos && UseSSE >= 1) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   821
      subptr(rsp, wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
      fstp_s(Address(rsp, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
      movflt(xmm0, Address(rsp, 0));
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   824
      addptr(rsp, wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
    } else if (state == dtos && UseSSE >= 2) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   826
      subptr(rsp, 2*wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
      fstp_d(Address(rsp, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
      movdbl(xmm0, Address(rsp, 0));
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   829
      addptr(rsp, 2*wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
#endif /* !CC_INTERP */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
// Lock object
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
// Argument: rdx : Points to BasicObjectLock to be used for locking. Must
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
// be initialized with object to lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
void InterpreterMacroAssembler::lock_object(Register lock_reg) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
  assert(lock_reg == rdx, "The argument is only for looks. It must be rdx");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
  if (UseHeavyMonitors) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
    Label done;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
    const Register swap_reg = rax;  // Must use rax, for cmpxchg instruction
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
    const Register obj_reg  = rcx;  // Will contain the oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
    const int obj_offset = BasicObjectLock::obj_offset_in_bytes();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
    const int lock_offset = BasicObjectLock::lock_offset_in_bytes ();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
    const int mark_offset = lock_offset + BasicLock::displaced_header_offset_in_bytes();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
    Label slow_case;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
    // Load object pointer into obj_reg %rcx
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   860
    movptr(obj_reg, Address(lock_reg, obj_offset));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
    if (UseBiasedLocking) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
      // Note: we use noreg for the temporary register since it's hard
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
      // to come up with a free register on all incoming code paths
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
      biased_locking_enter(lock_reg, obj_reg, swap_reg, noreg, false, done, &slow_case);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
    // Load immediate 1 into swap_reg %rax,
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   869
    movptr(swap_reg, (int32_t)1);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
    // Load (object->mark() | 1) into swap_reg %rax,
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   872
    orptr(swap_reg, Address(obj_reg, 0));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
    // Save (object->mark() | 1) into BasicLock's displaced header
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   875
    movptr(Address(lock_reg, mark_offset), swap_reg);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
    assert(lock_offset == 0, "displached header must be first word in BasicObjectLock");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
    if (os::is_MP()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
      lock();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
    }
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   881
    cmpxchgptr(lock_reg, Address(obj_reg, 0));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
    if (PrintBiasedLockingStatistics) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
      cond_inc32(Assembler::zero,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
                 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
    jcc(Assembler::zero, done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
    // Test if the oopMark is an obvious stack pointer, i.e.,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
    //  1) (mark & 3) == 0, and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
    //  2) rsp <= mark < mark + os::pagesize()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
    // These 3 tests can be done by evaluating the following
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
    // expression: ((mark - rsp) & (3 - os::vm_page_size())),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
    // assuming both stack pointer and pagesize have their
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
    // least significant 2 bits clear.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
    // NOTE: the oopMark is in swap_reg %rax, as the result of cmpxchg
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   897
    subptr(swap_reg, rsp);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   898
    andptr(swap_reg, 3 - os::vm_page_size());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
    // Save the test result, for recursive case, the result is zero
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   901
    movptr(Address(lock_reg, mark_offset), swap_reg);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
    if (PrintBiasedLockingStatistics) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
      cond_inc32(Assembler::zero,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
                 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
    jcc(Assembler::zero, done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
    bind(slow_case);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
    // Call the runtime routine for slow case
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
    call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
    bind(done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
// Unlocks an object. Used in monitorexit bytecode and remove_activation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
// Argument: rdx : Points to BasicObjectLock structure for lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
// Throw an IllegalMonitorException if object is not locked by current thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
// Uses: rax, rbx, rcx, rdx
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
void InterpreterMacroAssembler::unlock_object(Register lock_reg) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
  assert(lock_reg == rdx, "The argument is only for looks. It must be rdx");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
  if (UseHeavyMonitors) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
    call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
    Label done;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
    const Register swap_reg   = rax;  // Must use rax, for cmpxchg instruction
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
    const Register header_reg = rbx;  // Will contain the old oopMark
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
    const Register obj_reg    = rcx;  // Will contain the oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
    save_bcp(); // Save in case of exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
    // Convert from BasicObjectLock structure to object and BasicLock structure
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
    // Store the BasicLock address into %rax,
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   941
    lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
    // Load oop into obj_reg(%rcx)
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   944
    movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes ()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
    // Free entry
1888
bbf498fb4354 6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents: 1217
diff changeset
   947
    movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), NULL_WORD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
    if (UseBiasedLocking) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
      biased_locking_exit(obj_reg, header_reg, done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
    // Load the old header from BasicLock structure
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   954
    movptr(header_reg, Address(swap_reg, BasicLock::displaced_header_offset_in_bytes()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
    // Test for recursion
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   957
    testptr(header_reg, header_reg);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
    // zero for recursive case
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
    jcc(Assembler::zero, done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
    // Atomic swap back the old header
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
    if (os::is_MP()) lock();
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   964
    cmpxchgptr(header_reg, Address(obj_reg, 0));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
    // zero for recursive case
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
    jcc(Assembler::zero, done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
    // Call the runtime routine for slow case.
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   970
    movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), obj_reg); // restore obj
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
    call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
    bind(done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
    restore_bcp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
#ifndef CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
// Test ImethodDataPtr.  If it is null, continue at the specified label
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
void InterpreterMacroAssembler::test_method_data_pointer(Register mdp, Label& zero_continue) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
  assert(ProfileInterpreter, "must be profiling interpreter");
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   985
  movptr(mdp, Address(rbp, frame::interpreter_frame_mdx_offset * wordSize));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   986
  testptr(mdp, mdp);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
  jcc(Assembler::zero, zero_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
// Set the method data pointer for the current bcp.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
  assert(ProfileInterpreter, "must be profiling interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
  Label zero_continue;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   995
  push(rax);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
   996
  push(rbx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
  get_method(rbx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
  // Test MDO to avoid the call if it is NULL.
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1000
  movptr(rax, Address(rbx, in_bytes(methodOopDesc::method_data_offset())));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1001
  testptr(rax, rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
  jcc(Assembler::zero, zero_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
  // rbx,: method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
  // rsi: bcp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
  call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, rsi);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
  // rax,: mdi
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1009
  movptr(rbx, Address(rbx, in_bytes(methodOopDesc::method_data_offset())));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1010
  testptr(rbx, rbx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
  jcc(Assembler::zero, zero_continue);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1012
  addptr(rbx, in_bytes(methodDataOopDesc::data_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1013
  addptr(rbx, rax);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1014
  movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), rbx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
  bind(zero_continue);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1017
  pop(rbx);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1018
  pop(rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
void InterpreterMacroAssembler::verify_method_data_pointer() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
  assert(ProfileInterpreter, "must be profiling interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
  Label verify_continue;
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1025
  push(rax);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1026
  push(rbx);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1027
  push(rcx);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1028
  push(rdx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
  test_method_data_pointer(rcx, verify_continue); // If mdp is zero, continue
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
  get_method(rbx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
  // If the mdp is valid, it will point to a DataLayout header which is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
  // consistent with the bcp.  The converse is highly probable also.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
  load_unsigned_word(rdx, Address(rcx, in_bytes(DataLayout::bci_offset())));
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1035
  addptr(rdx, Address(rbx, methodOopDesc::const_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1036
  lea(rdx, Address(rdx, constMethodOopDesc::codes_offset()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1037
  cmpptr(rdx, rsi);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
  jcc(Assembler::equal, verify_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
  // rbx,: method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
  // rsi: bcp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
  // rcx: mdp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
  call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp), rbx, rsi, rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
  bind(verify_continue);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1044
  pop(rdx);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1045
  pop(rcx);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1046
  pop(rbx);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1047
  pop(rax);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
#endif // ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in, int constant, Register value) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1053
  // %%% this seems to be used to store counter data which is surely 32bits
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1054
  // however 64bit side stores 64 bits which seems wrong
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
  assert(ProfileInterpreter, "must be profiling interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
  Address data(mdp_in, constant);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1057
  movptr(data, value);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
                                                      int constant,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
                                                      bool decrement) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
  // Counter address
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
  Address data(mdp_in, constant);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
  increment_mdp_data_at(data, decrement);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
void InterpreterMacroAssembler::increment_mdp_data_at(Address data,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
                                                      bool decrement) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
  assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
  assert(ProfileInterpreter, "must be profiling interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1077
  // %%% 64bit treats this as 64 bit which seems unlikely
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1078
  if (decrement) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
    // Decrement the register.  Set condition codes.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
    addl(data, -DataLayout::counter_increment);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
    // If the decrement causes the counter to overflow, stay negative
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
    Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
    jcc(Assembler::negative, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
    addl(data, DataLayout::counter_increment);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
    bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
    assert(DataLayout::counter_increment == 1,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
           "flow-free idiom only works with 1");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1089
    // Increment the register.  Set carry flag.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
    addl(data, DataLayout::counter_increment);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
    // If the increment causes the counter to overflow, pull back by 1.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
    sbbl(data, 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
                                                      Register reg,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
                                                      int constant,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
                                                      bool decrement) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
  Address data(mdp_in, reg, Address::times_1, constant);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
  increment_mdp_data_at(data, decrement);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in, int flag_byte_constant) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
  assert(ProfileInterpreter, "must be profiling interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
  int header_offset = in_bytes(DataLayout::header_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
  int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
  // Set the flag
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
  orl(Address(mdp_in, header_offset), header_bits);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
                                                 int offset,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
                                                 Register value,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
                                                 Register test_value_out,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
                                                 Label& not_equal_continue) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
  assert(ProfileInterpreter, "must be profiling interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
  if (test_value_out == noreg) {
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1124
    cmpptr(value, Address(mdp_in, offset));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
    // Put the test value into a register, so caller can use it:
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1127
    movptr(test_value_out, Address(mdp_in, offset));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1128
    cmpptr(test_value_out, value);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
  jcc(Assembler::notEqual, not_equal_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, int offset_of_disp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
  assert(ProfileInterpreter, "must be profiling interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
  Address disp_address(mdp_in, offset_of_disp);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1137
  addptr(mdp_in,disp_address);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1138
  movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
  assert(ProfileInterpreter, "must be profiling interpreter");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
  Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1145
  addptr(mdp_in, disp_address);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1146
  movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in, int constant) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
  assert(ProfileInterpreter, "must be profiling interpreter");
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1152
  addptr(mdp_in, constant);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1153
  movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
  assert(ProfileInterpreter, "must be profiling interpreter");
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1159
  push(return_bci);             // save/restore across call_VM
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
  call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret), return_bci);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1161
  pop(return_bci);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
void InterpreterMacroAssembler::profile_taken_branch(Register mdp, Register bumped_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1167
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
    // Otherwise, assign to mdp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
    // We are taking a branch.  Increment the taken count.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
    // We inline increment_mdp_data_at to return bumped_count in a register
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
    //increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
    Address data(mdp, in_bytes(JumpData::taken_offset()));
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1177
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1178
    // %%% 64bit treats these cells as 64 bit but they seem to be 32 bit
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
    movl(bumped_count,data);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
    assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
    addl(bumped_count, DataLayout::counter_increment);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
    sbbl(bumped_count, 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
    movl(data,bumped_count);    // Store back out
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
    // The method data pointer needs to be updated to reflect the new target.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
    update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
    // We are taking a branch.  Increment the not taken count.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
    increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
    // The method data pointer needs to be updated to correspond to the next bytecode
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
    update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
void InterpreterMacroAssembler::profile_call(Register mdp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
    // We are making a call.  Increment the count.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
    increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
    // The method data pointer needs to be updated to reflect the new target.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
    update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
void InterpreterMacroAssembler::profile_final_call(Register mdp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
    // We are making a call.  Increment the count.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
    increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
    // The method data pointer needs to be updated to reflect the new target.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
    update_mdp_by_constant(mdp, in_bytes(VirtualCallData::virtual_call_data_size()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp, Register reg2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
    // We are making a call.  Increment the count.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
    increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
    // Record the receiver type.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
    record_klass_in_profile(receiver, mdp, reg2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
    // The method data pointer needs to be updated to reflect the new target.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
    update_mdp_by_constant(mdp,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
                           in_bytes(VirtualCallData::
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
                                    virtual_call_data_size()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
    bind(profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
void InterpreterMacroAssembler::record_klass_in_profile_helper(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
                                        Register receiver, Register mdp,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
                                        Register reg2,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
                                        int start_row, Label& done) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
  int last_row = VirtualCallData::row_limit() - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  assert(start_row <= last_row, "must be work left to do");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
  // Test this row for both the receiver and for null.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
  // Take any of three different outcomes:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
  //   1. found receiver => increment count and goto done
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
  //   2. found null => keep looking for case 1, maybe allocate this cell
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
  //   3. found something else => keep looking for cases 1 and 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
  // Case 3 is handled by a recursive call.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
  for (int row = start_row; row <= last_row; row++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
    Label next_test;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
    bool test_for_null_also = (row == start_row);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
    // See if the receiver is receiver[n].
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
    int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
    test_mdp_data_at(mdp, recvr_offset, receiver,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
                     (test_for_null_also ? reg2 : noreg),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
                     next_test);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
    // (Reg2 now contains the receiver from the CallData.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
    // The receiver is receiver[n].  Increment count[n].
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
    int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
    increment_mdp_data_at(mdp, count_offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
    jmp(done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
    bind(next_test);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
    if (row == start_row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
      // Failed the equality check on receiver[n]...  Test for null.
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1296
      testptr(reg2, reg2);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
      if (start_row == last_row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
        // The only thing left to do is handle the null case.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
        jcc(Assembler::notZero, done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1301
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
      // Since null is rare, make it be the branch-taken case.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
      Label found_null;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
      jcc(Assembler::zero, found_null);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
      // Put all the "Case 3" tests here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
      record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
      // Found a null.  Keep searching for a matching receiver,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
      // but remember that this is an empty (unused) slot.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
      bind(found_null);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1313
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
  // In the fall-through case, we found no matching receiver, but we
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
  // observed the receiver[start_row] is NULL.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
  // Fill in the receiver field and increment the count.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
  int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1320
  set_mdp_data_at(mdp, recvr_offset, receiver);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1321
  int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row));
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1322
  movptr(reg2, (int32_t)DataLayout::counter_increment);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
  set_mdp_data_at(mdp, count_offset, reg2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
  jmp(done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
void InterpreterMacroAssembler::record_klass_in_profile(Register receiver,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
                                                        Register mdp,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
                                                        Register reg2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
  assert(ProfileInterpreter, "must be profiling");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
  Label done;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
  record_klass_in_profile_helper(receiver, mdp, reg2, 0, done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
  bind (done);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
void InterpreterMacroAssembler::profile_ret(Register return_bci, Register mdp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
    uint row;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
    // Update the total ret count.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
    increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
    for (row = 0; row < RetData::row_limit(); row++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
      Label next_test;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
      // See if return_bci is equal to bci[n]:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
      test_mdp_data_at(mdp, in_bytes(RetData::bci_offset(row)), return_bci,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
                       noreg, next_test);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
      // return_bci is equal to bci[n].  Increment the count.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
      increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row)));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
      // The method data pointer needs to be updated to reflect the new target.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
      update_mdp_by_offset(mdp, in_bytes(RetData::bci_displacement_offset(row)));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
      jmp(profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
      bind(next_test);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
    update_mdp_for_ret(return_bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1371
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1372
void InterpreterMacroAssembler::profile_null_seen(Register mdp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1378
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1379
    // The method data pointer needs to be updated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1380
    int mdp_delta = in_bytes(BitData::bit_data_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
    if (TypeProfileCasts) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
      mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
    update_mdp_by_constant(mdp, mdp_delta);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
  if (ProfileInterpreter && TypeProfileCasts) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1393
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1394
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1397
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1398
    int count_offset = in_bytes(CounterData::count_offset());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1399
    // Back up the address, since we have already bumped the mdp.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
    count_offset -= in_bytes(VirtualCallData::virtual_call_data_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
    // *Decrement* the counter.  We expect to see zero or small negatives.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
    increment_mdp_data_at(mdp, count_offset, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1406
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
    // The method data pointer needs to be updated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
    int mdp_delta = in_bytes(BitData::bit_data_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
    if (TypeProfileCasts) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
      mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
      // Record the object type.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
      record_klass_in_profile(klass, mdp, reg2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
      assert(reg2 == rdi, "we know how to fix this blown reg");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
      restore_locals();         // Restore EDI
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
    update_mdp_by_constant(mdp, mdp_delta);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
    bind(profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1435
void InterpreterMacroAssembler::profile_switch_default(Register mdp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
    // Update the default case count
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
    increment_mdp_data_at(mdp, in_bytes(MultiBranchData::default_count_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
    // The method data pointer needs to be updated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
    update_mdp_by_offset(mdp, in_bytes(MultiBranchData::default_displacement_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1450
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1451
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1452
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1453
void InterpreterMacroAssembler::profile_switch_case(Register index, Register mdp, Register reg2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
  if (ProfileInterpreter) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1455
    Label profile_continue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
    // If no method data exists, go to profile_continue.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
    test_method_data_pointer(mdp, profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
    // Build the base (index * per_case_size_in_bytes()) + case_array_offset_in_bytes()
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1461
    movptr(reg2, (int32_t)in_bytes(MultiBranchData::per_case_size()));
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1462
    // index is positive and so should have correct value if this code were
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1463
    // used on 64bits
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1464
    imulptr(index, reg2);
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1465
    addptr(index, in_bytes(MultiBranchData::case_array_offset()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
    // Update the case count
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
    increment_mdp_data_at(mdp, index, in_bytes(MultiBranchData::relative_count_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
    // The method data pointer needs to be updated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
    update_mdp_by_offset(mdp, index, in_bytes(MultiBranchData::relative_displacement_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
    bind (profile_continue);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1474
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1476
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
#endif // !CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
  if (state == atos) MacroAssembler::verify_oop(reg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1483
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1484
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1485
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1486
#ifndef CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1488
  if (state == ftos || state == dtos) MacroAssembler::verify_FPU(stack_depth);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1489
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1490
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1491
#endif /* CC_INTERP */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1492
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1494
void InterpreterMacroAssembler::notify_method_entry() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
  // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1496
  // track stack depth.  If it is possible to enter interp_only_mode we add
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
  // the code to check if the event should be sent.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1498
  if (JvmtiExport::can_post_interpreter_events()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
    Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
    get_thread(rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1501
    movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
    testl(rcx,rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
    jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1504
    call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_entry));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1505
    bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1507
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1508
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1509
    SkipIfEqual skip_if(this, &DTraceMethodProbes, 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
    get_thread(rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
    get_method(rbx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
    call_VM_leaf(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1513
      CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), rcx, rbx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1514
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1515
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
void InterpreterMacroAssembler::notify_method_exit(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
    TosState state, NotifyMethodExitMode mode) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1520
  // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1521
  // track stack depth.  If it is possible to enter interp_only_mode we add
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1522
  // the code to check if the event should be sent.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1523
  if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1524
    Label L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1525
    // Note: frame::interpreter_frame_result has a dependency on how the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
    // method result is saved across the call to post_method_exit. If this
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1527
    // is changed then the interpreter_frame_result implementation will
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
    // need to be updated too.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1529
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1530
    // For c++ interpreter the result is always stored at a known location in the frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
    // template interpreter will leave it on the top of the stack.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1532
    NOT_CC_INTERP(push(state);)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
    get_thread(rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1534
    movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
    testl(rcx,rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
    jcc(Assembler::zero, L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
    call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
    bind(L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
    NOT_CC_INTERP(pop(state);)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1541
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1543
    SkipIfEqual skip_if(this, &DTraceMethodProbes, 0);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1544
    NOT_CC_INTERP(push(state));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
    get_thread(rbx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1546
    get_method(rcx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1547
    call_VM_leaf(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
      CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1549
      rbx, rcx);
1066
717c3345024f 5108146: Merge i486 and amd64 cpu directories
never
parents: 1
diff changeset
  1550
    NOT_CC_INTERP(pop(state));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
}