author | brutisso |
Mon, 17 Dec 2012 15:25:26 +0100 | |
changeset 14841 | d069f5506f71 |
parent 14621 | fd9265ab0f67 |
child 14828 | bb9dffedf46c |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "precompiled.hpp" |
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#include "ci/bcEscapeAnalyzer.hpp" |
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#include "ci/ciCallSite.hpp" |
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#include "ci/ciObjArray.hpp" |
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#include "ci/ciMemberName.hpp" |
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#include "ci/ciMethodHandle.hpp" |
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#include "classfile/javaClasses.hpp" |
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#include "compiler/compileLog.hpp" |
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#include "opto/addnode.hpp" |
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#include "opto/callGenerator.hpp" |
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#include "opto/callnode.hpp" |
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#include "opto/cfgnode.hpp" |
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#include "opto/connode.hpp" |
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#include "opto/parse.hpp" |
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#include "opto/rootnode.hpp" |
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#include "opto/runtime.hpp" |
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#include "opto/subnode.hpp" |
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// Utility function. |
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const TypeFunc* CallGenerator::tf() const { |
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return TypeFunc::make(method()); |
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} |
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//-----------------------------ParseGenerator--------------------------------- |
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// Internal class which handles all direct bytecode traversal. |
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class ParseGenerator : public InlineCallGenerator { |
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private: |
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bool _is_osr; |
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float _expected_uses; |
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public: |
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ParseGenerator(ciMethod* method, float expected_uses, bool is_osr = false) |
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: InlineCallGenerator(method) |
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{ |
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_is_osr = is_osr; |
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_expected_uses = expected_uses; |
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assert(InlineTree::check_can_parse(method) == NULL, "parse must be possible"); |
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} |
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virtual bool is_parse() const { return true; } |
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virtual JVMState* generate(JVMState* jvms); |
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int is_osr() { return _is_osr; } |
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}; |
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JVMState* ParseGenerator::generate(JVMState* jvms) { |
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Compile* C = Compile::current(); |
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if (is_osr()) { |
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// The JVMS for a OSR has a single argument (see its TypeFunc). |
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assert(jvms->depth() == 1, "no inline OSR"); |
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} |
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if (C->failing()) { |
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return NULL; // bailing out of the compile; do not try to parse |
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} |
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Parse parser(jvms, method(), _expected_uses); |
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// Grab signature for matching/allocation |
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#ifdef ASSERT |
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if (parser.tf() != (parser.depth() == 1 ? C->tf() : tf())) { |
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MutexLockerEx ml(Compile_lock, Mutex::_no_safepoint_check_flag); |
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assert(C->env()->system_dictionary_modification_counter_changed(), |
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"Must invalidate if TypeFuncs differ"); |
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} |
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#endif |
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GraphKit& exits = parser.exits(); |
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if (C->failing()) { |
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while (exits.pop_exception_state() != NULL) ; |
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return NULL; |
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} |
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assert(exits.jvms()->same_calls_as(jvms), "sanity"); |
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// Simply return the exit state of the parser, |
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// augmented by any exceptional states. |
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return exits.transfer_exceptions_into_jvms(); |
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} |
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//---------------------------DirectCallGenerator------------------------------ |
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// Internal class which handles all out-of-line calls w/o receiver type checks. |
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class DirectCallGenerator : public CallGenerator { |
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private: |
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CallStaticJavaNode* _call_node; |
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// Force separate memory and I/O projections for the exceptional |
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// paths to facilitate late inlinig. |
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bool _separate_io_proj; |
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public: |
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DirectCallGenerator(ciMethod* method, bool separate_io_proj) |
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: CallGenerator(method), |
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_separate_io_proj(separate_io_proj) |
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{ |
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} |
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virtual JVMState* generate(JVMState* jvms); |
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CallStaticJavaNode* call_node() const { return _call_node; } |
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}; |
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JVMState* DirectCallGenerator::generate(JVMState* jvms) { |
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GraphKit kit(jvms); |
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bool is_static = method()->is_static(); |
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address target = is_static ? SharedRuntime::get_resolve_static_call_stub() |
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: SharedRuntime::get_resolve_opt_virtual_call_stub(); |
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if (kit.C->log() != NULL) { |
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kit.C->log()->elem("direct_call bci='%d'", jvms->bci()); |
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} |
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CallStaticJavaNode *call = new (kit.C) CallStaticJavaNode(tf(), target, method(), kit.bci()); |
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_call_node = call; // Save the call node in case we need it later |
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if (!is_static) { |
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// Make an explicit receiver null_check as part of this call. |
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// Since we share a map with the caller, his JVMS gets adjusted. |
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kit.null_check_receiver_before_call(method()); |
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if (kit.stopped()) { |
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// And dump it back to the caller, decorated with any exceptions: |
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return kit.transfer_exceptions_into_jvms(); |
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} |
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// Mark the call node as virtual, sort of: |
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call->set_optimized_virtual(true); |
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if (method()->is_method_handle_intrinsic() || |
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method()->is_compiled_lambda_form()) { |
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call->set_method_handle_invoke(true); |
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} |
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} |
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kit.set_arguments_for_java_call(call); |
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kit.set_edges_for_java_call(call, false, _separate_io_proj); |
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Node* ret = kit.set_results_for_java_call(call, _separate_io_proj); |
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kit.push_node(method()->return_type()->basic_type(), ret); |
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return kit.transfer_exceptions_into_jvms(); |
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} |
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//--------------------------VirtualCallGenerator------------------------------ |
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// Internal class which handles all out-of-line calls checking receiver type. |
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class VirtualCallGenerator : public CallGenerator { |
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private: |
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int _vtable_index; |
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public: |
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VirtualCallGenerator(ciMethod* method, int vtable_index) |
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: CallGenerator(method), _vtable_index(vtable_index) |
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{ |
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assert(vtable_index == Method::invalid_vtable_index || |
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vtable_index >= 0, "either invalid or usable"); |
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} |
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virtual bool is_virtual() const { return true; } |
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virtual JVMState* generate(JVMState* jvms); |
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}; |
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JVMState* VirtualCallGenerator::generate(JVMState* jvms) { |
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GraphKit kit(jvms); |
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Node* receiver = kit.argument(0); |
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if (kit.C->log() != NULL) { |
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kit.C->log()->elem("virtual_call bci='%d'", jvms->bci()); |
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} |
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// If the receiver is a constant null, do not torture the system |
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// by attempting to call through it. The compile will proceed |
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// correctly, but may bail out in final_graph_reshaping, because |
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// the call instruction will have a seemingly deficient out-count. |
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// (The bailout says something misleading about an "infinite loop".) |
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if (kit.gvn().type(receiver)->higher_equal(TypePtr::NULL_PTR)) { |
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kit.inc_sp(method()->arg_size()); // restore arguments |
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kit.uncommon_trap(Deoptimization::Reason_null_check, |
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Deoptimization::Action_none, |
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NULL, "null receiver"); |
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return kit.transfer_exceptions_into_jvms(); |
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} |
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// Ideally we would unconditionally do a null check here and let it |
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// be converted to an implicit check based on profile information. |
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// However currently the conversion to implicit null checks in |
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// Block::implicit_null_check() only looks for loads and stores, not calls. |
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ciMethod *caller = kit.method(); |
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ciMethodData *caller_md = (caller == NULL) ? NULL : caller->method_data(); |
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if (!UseInlineCaches || !ImplicitNullChecks || |
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((ImplicitNullCheckThreshold > 0) && caller_md && |
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(caller_md->trap_count(Deoptimization::Reason_null_check) |
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>= (uint)ImplicitNullCheckThreshold))) { |
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// Make an explicit receiver null_check as part of this call. |
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// Since we share a map with the caller, his JVMS gets adjusted. |
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receiver = kit.null_check_receiver_before_call(method()); |
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if (kit.stopped()) { |
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// And dump it back to the caller, decorated with any exceptions: |
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return kit.transfer_exceptions_into_jvms(); |
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} |
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} |
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assert(!method()->is_static(), "virtual call must not be to static"); |
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assert(!method()->is_final(), "virtual call should not be to final"); |
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assert(!method()->is_private(), "virtual call should not be to private"); |
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assert(_vtable_index == Method::invalid_vtable_index || !UseInlineCaches, |
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"no vtable calls if +UseInlineCaches "); |
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address target = SharedRuntime::get_resolve_virtual_call_stub(); |
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// Normal inline cache used for call |
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CallDynamicJavaNode *call = new (kit.C) CallDynamicJavaNode(tf(), target, method(), _vtable_index, kit.bci()); |
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kit.set_arguments_for_java_call(call); |
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kit.set_edges_for_java_call(call); |
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Node* ret = kit.set_results_for_java_call(call); |
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kit.push_node(method()->return_type()->basic_type(), ret); |
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// Represent the effect of an implicit receiver null_check |
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// as part of this call. Since we share a map with the caller, |
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// his JVMS gets adjusted. |
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kit.cast_not_null(receiver); |
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return kit.transfer_exceptions_into_jvms(); |
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} |
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CallGenerator* CallGenerator::for_inline(ciMethod* m, float expected_uses) { |
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if (InlineTree::check_can_parse(m) != NULL) return NULL; |
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return new ParseGenerator(m, expected_uses); |
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} |
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// As a special case, the JVMS passed to this CallGenerator is |
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// for the method execution already in progress, not just the JVMS |
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// of the caller. Thus, this CallGenerator cannot be mixed with others! |
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CallGenerator* CallGenerator::for_osr(ciMethod* m, int osr_bci) { |
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if (InlineTree::check_can_parse(m) != NULL) return NULL; |
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float past_uses = m->interpreter_invocation_count(); |
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float expected_uses = past_uses; |
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return new ParseGenerator(m, expected_uses, true); |
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} |
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CallGenerator* CallGenerator::for_direct_call(ciMethod* m, bool separate_io_proj) { |
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assert(!m->is_abstract(), "for_direct_call mismatch"); |
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return new DirectCallGenerator(m, separate_io_proj); |
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} |
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CallGenerator* CallGenerator::for_virtual_call(ciMethod* m, int vtable_index) { |
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assert(!m->is_static(), "for_virtual_call mismatch"); |
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assert(!m->is_method_handle_intrinsic(), "should be a direct call"); |
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return new VirtualCallGenerator(m, vtable_index); |
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} |
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// Allow inlining decisions to be delayed |
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class LateInlineCallGenerator : public DirectCallGenerator { |
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CallGenerator* _inline_cg; |
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public: |
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LateInlineCallGenerator(ciMethod* method, CallGenerator* inline_cg) : |
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DirectCallGenerator(method, true), _inline_cg(inline_cg) {} |
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virtual bool is_late_inline() const { return true; } |
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// Convert the CallStaticJava into an inline |
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virtual void do_late_inline(); |
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virtual JVMState* generate(JVMState* jvms) { |
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// Record that this call site should be revisited once the main |
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// parse is finished. |
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Compile::current()->add_late_inline(this); |
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|
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// Emit the CallStaticJava and request separate projections so |
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282 |
// that the late inlining logic can distinguish between fall |
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283 |
// through and exceptional uses of the memory and io projections |
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// as is done for allocations and macro expansion. |
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285 |
return DirectCallGenerator::generate(jvms); |
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286 |
} |
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287 |
|
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}; |
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289 |
|
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290 |
|
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void LateInlineCallGenerator::do_late_inline() { |
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292 |
// Can't inline it |
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if (call_node() == NULL || call_node()->outcnt() == 0 || |
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294 |
call_node()->in(0) == NULL || call_node()->in(0)->is_top()) |
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295 |
return; |
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296 |
|
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CallStaticJavaNode* call = call_node(); |
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298 |
|
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// Make a clone of the JVMState that appropriate to use for driving a parse |
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300 |
Compile* C = Compile::current(); |
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301 |
JVMState* jvms = call->jvms()->clone_shallow(C); |
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uint size = call->req(); |
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303 |
SafePointNode* map = new (C) SafePointNode(size, jvms); |
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for (uint i1 = 0; i1 < size; i1++) { |
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map->init_req(i1, call->in(i1)); |
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} |
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307 |
|
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308 |
// Make sure the state is a MergeMem for parsing. |
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309 |
if (!map->in(TypeFunc::Memory)->is_MergeMem()) { |
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map->set_req(TypeFunc::Memory, MergeMemNode::make(C, map->in(TypeFunc::Memory))); |
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} |
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312 |
|
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|
313 |
// Make enough space for the expression stack and transfer the incoming arguments |
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int nargs = method()->arg_size(); |
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jvms->set_map(map); |
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|
316 |
map->ensure_stack(jvms, jvms->method()->max_stack()); |
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if (nargs > 0) { |
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for (int i1 = 0; i1 < nargs; i1++) { |
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319 |
map->set_req(i1 + jvms->argoff(), call->in(TypeFunc::Parms + i1)); |
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|
320 |
} |
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|
321 |
} |
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|
322 |
|
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323 |
CompileLog* log = C->log(); |
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|
324 |
if (log != NULL) { |
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|
325 |
log->head("late_inline method='%d'", log->identify(method())); |
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|
326 |
JVMState* p = jvms; |
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|
327 |
while (p != NULL) { |
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|
328 |
log->elem("jvms bci='%d' method='%d'", p->bci(), log->identify(p->method())); |
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|
329 |
p = p->caller(); |
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|
330 |
} |
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|
331 |
log->tail("late_inline"); |
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|
332 |
} |
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|
333 |
|
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|
334 |
// Setup default node notes to be picked up by the inlining |
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|
335 |
Node_Notes* old_nn = C->default_node_notes(); |
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|
336 |
if (old_nn != NULL) { |
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|
337 |
Node_Notes* entry_nn = old_nn->clone(C); |
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|
338 |
entry_nn->set_jvms(jvms); |
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|
339 |
C->set_default_node_notes(entry_nn); |
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|
340 |
} |
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|
341 |
|
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|
342 |
// Now perform the inling using the synthesized JVMState |
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|
343 |
JVMState* new_jvms = _inline_cg->generate(jvms); |
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344 |
if (new_jvms == NULL) return; // no change |
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|
345 |
if (C->failing()) return; |
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|
346 |
|
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347 |
// Capture any exceptional control flow |
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|
348 |
GraphKit kit(new_jvms); |
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|
349 |
|
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|
350 |
// Find the result object |
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351 |
Node* result = C->top(); |
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|
352 |
int result_size = method()->return_type()->size(); |
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353 |
if (result_size != 0 && !kit.stopped()) { |
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354 |
result = (result_size == 1) ? kit.pop() : kit.pop_pair(); |
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|
355 |
} |
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|
356 |
|
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|
357 |
kit.replace_call(call, result); |
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|
358 |
} |
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|
359 |
|
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|
360 |
|
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|
361 |
CallGenerator* CallGenerator::for_late_inline(ciMethod* method, CallGenerator* inline_cg) { |
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|
362 |
return new LateInlineCallGenerator(method, inline_cg); |
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|
363 |
} |
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364 |
|
1 | 365 |
|
366 |
//---------------------------WarmCallGenerator-------------------------------- |
|
367 |
// Internal class which handles initial deferral of inlining decisions. |
|
368 |
class WarmCallGenerator : public CallGenerator { |
|
369 |
WarmCallInfo* _call_info; |
|
370 |
CallGenerator* _if_cold; |
|
371 |
CallGenerator* _if_hot; |
|
372 |
bool _is_virtual; // caches virtuality of if_cold |
|
373 |
bool _is_inline; // caches inline-ness of if_hot |
|
374 |
||
375 |
public: |
|
376 |
WarmCallGenerator(WarmCallInfo* ci, |
|
377 |
CallGenerator* if_cold, |
|
378 |
CallGenerator* if_hot) |
|
379 |
: CallGenerator(if_cold->method()) |
|
380 |
{ |
|
381 |
assert(method() == if_hot->method(), "consistent choices"); |
|
382 |
_call_info = ci; |
|
383 |
_if_cold = if_cold; |
|
384 |
_if_hot = if_hot; |
|
385 |
_is_virtual = if_cold->is_virtual(); |
|
386 |
_is_inline = if_hot->is_inline(); |
|
387 |
} |
|
388 |
||
389 |
virtual bool is_inline() const { return _is_inline; } |
|
390 |
virtual bool is_virtual() const { return _is_virtual; } |
|
391 |
virtual bool is_deferred() const { return true; } |
|
392 |
||
393 |
virtual JVMState* generate(JVMState* jvms); |
|
394 |
}; |
|
395 |
||
396 |
||
397 |
CallGenerator* CallGenerator::for_warm_call(WarmCallInfo* ci, |
|
398 |
CallGenerator* if_cold, |
|
399 |
CallGenerator* if_hot) { |
|
400 |
return new WarmCallGenerator(ci, if_cold, if_hot); |
|
401 |
} |
|
402 |
||
403 |
JVMState* WarmCallGenerator::generate(JVMState* jvms) { |
|
404 |
Compile* C = Compile::current(); |
|
405 |
if (C->log() != NULL) { |
|
406 |
C->log()->elem("warm_call bci='%d'", jvms->bci()); |
|
407 |
} |
|
408 |
jvms = _if_cold->generate(jvms); |
|
409 |
if (jvms != NULL) { |
|
410 |
Node* m = jvms->map()->control(); |
|
411 |
if (m->is_CatchProj()) m = m->in(0); else m = C->top(); |
|
412 |
if (m->is_Catch()) m = m->in(0); else m = C->top(); |
|
413 |
if (m->is_Proj()) m = m->in(0); else m = C->top(); |
|
414 |
if (m->is_CallJava()) { |
|
415 |
_call_info->set_call(m->as_Call()); |
|
416 |
_call_info->set_hot_cg(_if_hot); |
|
417 |
#ifndef PRODUCT |
|
418 |
if (PrintOpto || PrintOptoInlining) { |
|
419 |
tty->print_cr("Queueing for warm inlining at bci %d:", jvms->bci()); |
|
420 |
tty->print("WCI: "); |
|
421 |
_call_info->print(); |
|
422 |
} |
|
423 |
#endif |
|
424 |
_call_info->set_heat(_call_info->compute_heat()); |
|
425 |
C->set_warm_calls(_call_info->insert_into(C->warm_calls())); |
|
426 |
} |
|
427 |
} |
|
428 |
return jvms; |
|
429 |
} |
|
430 |
||
431 |
void WarmCallInfo::make_hot() { |
|
4450
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|
432 |
Unimplemented(); |
1 | 433 |
} |
434 |
||
435 |
void WarmCallInfo::make_cold() { |
|
436 |
// No action: Just dequeue. |
|
437 |
} |
|
438 |
||
439 |
||
440 |
//------------------------PredictedCallGenerator------------------------------ |
|
441 |
// Internal class which handles all out-of-line calls checking receiver type. |
|
442 |
class PredictedCallGenerator : public CallGenerator { |
|
443 |
ciKlass* _predicted_receiver; |
|
444 |
CallGenerator* _if_missed; |
|
445 |
CallGenerator* _if_hit; |
|
446 |
float _hit_prob; |
|
447 |
||
448 |
public: |
|
449 |
PredictedCallGenerator(ciKlass* predicted_receiver, |
|
450 |
CallGenerator* if_missed, |
|
451 |
CallGenerator* if_hit, float hit_prob) |
|
452 |
: CallGenerator(if_missed->method()) |
|
453 |
{ |
|
454 |
// The call profile data may predict the hit_prob as extreme as 0 or 1. |
|
455 |
// Remove the extremes values from the range. |
|
456 |
if (hit_prob > PROB_MAX) hit_prob = PROB_MAX; |
|
457 |
if (hit_prob < PROB_MIN) hit_prob = PROB_MIN; |
|
458 |
||
459 |
_predicted_receiver = predicted_receiver; |
|
460 |
_if_missed = if_missed; |
|
461 |
_if_hit = if_hit; |
|
462 |
_hit_prob = hit_prob; |
|
463 |
} |
|
464 |
||
465 |
virtual bool is_virtual() const { return true; } |
|
466 |
virtual bool is_inline() const { return _if_hit->is_inline(); } |
|
467 |
virtual bool is_deferred() const { return _if_hit->is_deferred(); } |
|
468 |
||
469 |
virtual JVMState* generate(JVMState* jvms); |
|
470 |
}; |
|
471 |
||
472 |
||
473 |
CallGenerator* CallGenerator::for_predicted_call(ciKlass* predicted_receiver, |
|
474 |
CallGenerator* if_missed, |
|
475 |
CallGenerator* if_hit, |
|
476 |
float hit_prob) { |
|
477 |
return new PredictedCallGenerator(predicted_receiver, if_missed, if_hit, hit_prob); |
|
478 |
} |
|
479 |
||
480 |
||
481 |
JVMState* PredictedCallGenerator::generate(JVMState* jvms) { |
|
482 |
GraphKit kit(jvms); |
|
483 |
PhaseGVN& gvn = kit.gvn(); |
|
484 |
// We need an explicit receiver null_check before checking its type. |
|
485 |
// We share a map with the caller, so his JVMS gets adjusted. |
|
486 |
Node* receiver = kit.argument(0); |
|
487 |
||
488 |
CompileLog* log = kit.C->log(); |
|
489 |
if (log != NULL) { |
|
490 |
log->elem("predicted_call bci='%d' klass='%d'", |
|
491 |
jvms->bci(), log->identify(_predicted_receiver)); |
|
492 |
} |
|
493 |
||
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|
494 |
receiver = kit.null_check_receiver_before_call(method()); |
1 | 495 |
if (kit.stopped()) { |
496 |
return kit.transfer_exceptions_into_jvms(); |
|
497 |
} |
|
498 |
||
499 |
Node* exact_receiver = receiver; // will get updated in place... |
|
500 |
Node* slow_ctl = kit.type_check_receiver(receiver, |
|
501 |
_predicted_receiver, _hit_prob, |
|
502 |
&exact_receiver); |
|
503 |
||
504 |
SafePointNode* slow_map = NULL; |
|
505 |
JVMState* slow_jvms; |
|
506 |
{ PreserveJVMState pjvms(&kit); |
|
507 |
kit.set_control(slow_ctl); |
|
508 |
if (!kit.stopped()) { |
|
509 |
slow_jvms = _if_missed->generate(kit.sync_jvms()); |
|
11193
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|
510 |
if (kit.failing()) |
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|
511 |
return NULL; // might happen because of NodeCountInliningCutoff |
d8de495d05e0
7108383: JSR 292: JRuby bench_define_method_methods.rb: assert(slow_jvms != NULL) failed: miss path must not
twisti
parents:
10986
diff
changeset
|
512 |
assert(slow_jvms != NULL, "must be"); |
1 | 513 |
kit.add_exception_states_from(slow_jvms); |
514 |
kit.set_map(slow_jvms->map()); |
|
515 |
if (!kit.stopped()) |
|
516 |
slow_map = kit.stop(); |
|
517 |
} |
|
518 |
} |
|
519 |
||
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
1
diff
changeset
|
520 |
if (kit.stopped()) { |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
1
diff
changeset
|
521 |
// Instance exactly does not matches the desired type. |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
1
diff
changeset
|
522 |
kit.set_jvms(slow_jvms); |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
1
diff
changeset
|
523 |
return kit.transfer_exceptions_into_jvms(); |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
1
diff
changeset
|
524 |
} |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
1
diff
changeset
|
525 |
|
1 | 526 |
// fall through if the instance exactly matches the desired type |
527 |
kit.replace_in_map(receiver, exact_receiver); |
|
528 |
||
529 |
// Make the hot call: |
|
530 |
JVMState* new_jvms = _if_hit->generate(kit.sync_jvms()); |
|
531 |
if (new_jvms == NULL) { |
|
532 |
// Inline failed, so make a direct call. |
|
533 |
assert(_if_hit->is_inline(), "must have been a failed inline"); |
|
534 |
CallGenerator* cg = CallGenerator::for_direct_call(_if_hit->method()); |
|
535 |
new_jvms = cg->generate(kit.sync_jvms()); |
|
536 |
} |
|
537 |
kit.add_exception_states_from(new_jvms); |
|
538 |
kit.set_jvms(new_jvms); |
|
539 |
||
540 |
// Need to merge slow and fast? |
|
541 |
if (slow_map == NULL) { |
|
542 |
// The fast path is the only path remaining. |
|
543 |
return kit.transfer_exceptions_into_jvms(); |
|
544 |
} |
|
545 |
||
546 |
if (kit.stopped()) { |
|
547 |
// Inlined method threw an exception, so it's just the slow path after all. |
|
548 |
kit.set_jvms(slow_jvms); |
|
549 |
return kit.transfer_exceptions_into_jvms(); |
|
550 |
} |
|
551 |
||
552 |
// Finish the diamond. |
|
553 |
kit.C->set_has_split_ifs(true); // Has chance for split-if optimization |
|
13895
f6dfe4123709
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
13728
diff
changeset
|
554 |
RegionNode* region = new (kit.C) RegionNode(3); |
1 | 555 |
region->init_req(1, kit.control()); |
556 |
region->init_req(2, slow_map->control()); |
|
557 |
kit.set_control(gvn.transform(region)); |
|
558 |
Node* iophi = PhiNode::make(region, kit.i_o(), Type::ABIO); |
|
559 |
iophi->set_req(2, slow_map->i_o()); |
|
560 |
kit.set_i_o(gvn.transform(iophi)); |
|
561 |
kit.merge_memory(slow_map->merged_memory(), region, 2); |
|
562 |
uint tos = kit.jvms()->stkoff() + kit.sp(); |
|
563 |
uint limit = slow_map->req(); |
|
564 |
for (uint i = TypeFunc::Parms; i < limit; i++) { |
|
565 |
// Skip unused stack slots; fast forward to monoff(); |
|
566 |
if (i == tos) { |
|
567 |
i = kit.jvms()->monoff(); |
|
568 |
if( i >= limit ) break; |
|
569 |
} |
|
570 |
Node* m = kit.map()->in(i); |
|
571 |
Node* n = slow_map->in(i); |
|
572 |
if (m != n) { |
|
573 |
const Type* t = gvn.type(m)->meet(gvn.type(n)); |
|
574 |
Node* phi = PhiNode::make(region, m, t); |
|
575 |
phi->set_req(2, n); |
|
576 |
kit.map()->set_req(i, gvn.transform(phi)); |
|
577 |
} |
|
578 |
} |
|
579 |
return kit.transfer_exceptions_into_jvms(); |
|
580 |
} |
|
581 |
||
582 |
||
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
583 |
CallGenerator* CallGenerator::for_method_handle_call(JVMState* jvms, ciMethod* caller, ciMethod* callee) { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
584 |
assert(callee->is_method_handle_intrinsic() || |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
585 |
callee->is_compiled_lambda_form(), "for_method_handle_call mismatch"); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
586 |
CallGenerator* cg = CallGenerator::for_method_handle_inline(jvms, caller, callee); |
11193
d8de495d05e0
7108383: JSR 292: JRuby bench_define_method_methods.rb: assert(slow_jvms != NULL) failed: miss path must not
twisti
parents:
10986
diff
changeset
|
587 |
if (cg != NULL) |
d8de495d05e0
7108383: JSR 292: JRuby bench_define_method_methods.rb: assert(slow_jvms != NULL) failed: miss path must not
twisti
parents:
10986
diff
changeset
|
588 |
return cg; |
d8de495d05e0
7108383: JSR 292: JRuby bench_define_method_methods.rb: assert(slow_jvms != NULL) failed: miss path must not
twisti
parents:
10986
diff
changeset
|
589 |
return CallGenerator::for_direct_call(callee); |
d8de495d05e0
7108383: JSR 292: JRuby bench_define_method_methods.rb: assert(slow_jvms != NULL) failed: miss path must not
twisti
parents:
10986
diff
changeset
|
590 |
} |
d8de495d05e0
7108383: JSR 292: JRuby bench_define_method_methods.rb: assert(slow_jvms != NULL) failed: miss path must not
twisti
parents:
10986
diff
changeset
|
591 |
|
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
592 |
CallGenerator* CallGenerator::for_method_handle_inline(JVMState* jvms, ciMethod* caller, ciMethod* callee) { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
593 |
GraphKit kit(jvms); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
594 |
PhaseGVN& gvn = kit.gvn(); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
595 |
Compile* C = kit.C; |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
596 |
vmIntrinsics::ID iid = callee->intrinsic_id(); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
597 |
switch (iid) { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
598 |
case vmIntrinsics::_invokeBasic: |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
599 |
{ |
14621
fd9265ab0f67
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
14132
diff
changeset
|
600 |
// Get MethodHandle receiver: |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
601 |
Node* receiver = kit.argument(0); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
602 |
if (receiver->Opcode() == Op_ConP) { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
603 |
const TypeOopPtr* oop_ptr = receiver->bottom_type()->is_oopptr(); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
604 |
ciMethod* target = oop_ptr->const_oop()->as_method_handle()->get_vmtarget(); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
605 |
guarantee(!target->is_method_handle_intrinsic(), "should not happen"); // XXX remove |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13487
diff
changeset
|
606 |
const int vtable_index = Method::invalid_vtable_index; |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
607 |
CallGenerator* cg = C->call_generator(target, vtable_index, false, jvms, true, PROB_ALWAYS); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
608 |
if (cg != NULL && cg->is_inline()) |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
609 |
return cg; |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
610 |
} else { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
611 |
if (PrintInlining) CompileTask::print_inlining(callee, jvms->depth() - 1, jvms->bci(), "receiver not constant"); |
10514
e229a19078cf
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
10510
diff
changeset
|
612 |
} |
e229a19078cf
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
10510
diff
changeset
|
613 |
} |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
614 |
break; |
10514
e229a19078cf
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
10510
diff
changeset
|
615 |
|
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
616 |
case vmIntrinsics::_linkToVirtual: |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
617 |
case vmIntrinsics::_linkToStatic: |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
618 |
case vmIntrinsics::_linkToSpecial: |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
619 |
case vmIntrinsics::_linkToInterface: |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
620 |
{ |
14621
fd9265ab0f67
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
14132
diff
changeset
|
621 |
// Get MemberName argument: |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
622 |
Node* member_name = kit.argument(callee->arg_size() - 1); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
623 |
if (member_name->Opcode() == Op_ConP) { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
624 |
const TypeOopPtr* oop_ptr = member_name->bottom_type()->is_oopptr(); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
625 |
ciMethod* target = oop_ptr->const_oop()->as_member_name()->get_vmtarget(); |
9975
82190b49ce14
7050554: JSR 292 - need optimization for selectAlternative
never
parents:
9099
diff
changeset
|
626 |
|
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
627 |
// In lamda forms we erase signature types to avoid resolving issues |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
628 |
// involving class loaders. When we optimize a method handle invoke |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
629 |
// to a direct call we must cast the receiver and arguments to its |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
630 |
// actual types. |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
631 |
ciSignature* signature = target->signature(); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
632 |
const int receiver_skip = target->is_static() ? 0 : 1; |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
633 |
// Cast receiver to its type. |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
634 |
if (!target->is_static()) { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
635 |
Node* arg = kit.argument(0); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
636 |
const TypeOopPtr* arg_type = arg->bottom_type()->isa_oopptr(); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
637 |
const Type* sig_type = TypeOopPtr::make_from_klass(signature->accessing_klass()); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
638 |
if (arg_type != NULL && !arg_type->higher_equal(sig_type)) { |
13895
f6dfe4123709
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
13728
diff
changeset
|
639 |
Node* cast_obj = gvn.transform(new (C) CheckCastPPNode(kit.control(), arg, sig_type)); |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
640 |
kit.set_argument(0, cast_obj); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
641 |
} |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
642 |
} |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
643 |
// Cast reference arguments to its type. |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
644 |
for (int i = 0; i < signature->count(); i++) { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
645 |
ciType* t = signature->type_at(i); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
646 |
if (t->is_klass()) { |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
647 |
Node* arg = kit.argument(receiver_skip + i); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
648 |
const TypeOopPtr* arg_type = arg->bottom_type()->isa_oopptr(); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
649 |
const Type* sig_type = TypeOopPtr::make_from_klass(t->as_klass()); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
650 |
if (arg_type != NULL && !arg_type->higher_equal(sig_type)) { |
13895
f6dfe4123709
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
13728
diff
changeset
|
651 |
Node* cast_obj = gvn.transform(new (C) CheckCastPPNode(kit.control(), arg, sig_type)); |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
652 |
kit.set_argument(receiver_skip + i, cast_obj); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
653 |
} |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
654 |
} |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
655 |
} |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13487
diff
changeset
|
656 |
const int vtable_index = Method::invalid_vtable_index; |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
657 |
const bool call_is_virtual = target->is_abstract(); // FIXME workaround |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
658 |
CallGenerator* cg = C->call_generator(target, vtable_index, call_is_virtual, jvms, true, PROB_ALWAYS); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
659 |
if (cg != NULL && cg->is_inline()) |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
660 |
return cg; |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
661 |
} |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
662 |
} |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
663 |
break; |
10265
4c869854aebd
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
9975
diff
changeset
|
664 |
|
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
665 |
default: |
13393
f0344cc50a90
7187454: stack overflow in C2 compiler thread on Solaris x86
kvn
parents:
13391
diff
changeset
|
666 |
fatal(err_msg_res("unexpected intrinsic %d: %s", iid, vmIntrinsics::name_at(iid))); |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13107
diff
changeset
|
667 |
break; |
10265
4c869854aebd
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
9975
diff
changeset
|
668 |
} |
4c869854aebd
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
9975
diff
changeset
|
669 |
return NULL; |
4c869854aebd
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
9975
diff
changeset
|
670 |
} |
4c869854aebd
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
9975
diff
changeset
|
671 |
|
4c869854aebd
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
9975
diff
changeset
|
672 |
|
14132 | 673 |
//------------------------PredictedIntrinsicGenerator------------------------------ |
674 |
// Internal class which handles all predicted Intrinsic calls. |
|
675 |
class PredictedIntrinsicGenerator : public CallGenerator { |
|
676 |
CallGenerator* _intrinsic; |
|
677 |
CallGenerator* _cg; |
|
678 |
||
679 |
public: |
|
680 |
PredictedIntrinsicGenerator(CallGenerator* intrinsic, |
|
681 |
CallGenerator* cg) |
|
682 |
: CallGenerator(cg->method()) |
|
683 |
{ |
|
684 |
_intrinsic = intrinsic; |
|
685 |
_cg = cg; |
|
686 |
} |
|
687 |
||
688 |
virtual bool is_virtual() const { return true; } |
|
689 |
virtual bool is_inlined() const { return true; } |
|
690 |
virtual bool is_intrinsic() const { return true; } |
|
691 |
||
692 |
virtual JVMState* generate(JVMState* jvms); |
|
693 |
}; |
|
694 |
||
695 |
||
696 |
CallGenerator* CallGenerator::for_predicted_intrinsic(CallGenerator* intrinsic, |
|
697 |
CallGenerator* cg) { |
|
698 |
return new PredictedIntrinsicGenerator(intrinsic, cg); |
|
699 |
} |
|
700 |
||
701 |
||
702 |
JVMState* PredictedIntrinsicGenerator::generate(JVMState* jvms) { |
|
703 |
GraphKit kit(jvms); |
|
704 |
PhaseGVN& gvn = kit.gvn(); |
|
705 |
||
706 |
CompileLog* log = kit.C->log(); |
|
707 |
if (log != NULL) { |
|
708 |
log->elem("predicted_intrinsic bci='%d' method='%d'", |
|
709 |
jvms->bci(), log->identify(method())); |
|
710 |
} |
|
711 |
||
712 |
Node* slow_ctl = _intrinsic->generate_predicate(kit.sync_jvms()); |
|
713 |
if (kit.failing()) |
|
714 |
return NULL; // might happen because of NodeCountInliningCutoff |
|
715 |
||
716 |
SafePointNode* slow_map = NULL; |
|
717 |
JVMState* slow_jvms; |
|
718 |
if (slow_ctl != NULL) { |
|
719 |
PreserveJVMState pjvms(&kit); |
|
720 |
kit.set_control(slow_ctl); |
|
721 |
if (!kit.stopped()) { |
|
722 |
slow_jvms = _cg->generate(kit.sync_jvms()); |
|
723 |
if (kit.failing()) |
|
724 |
return NULL; // might happen because of NodeCountInliningCutoff |
|
725 |
assert(slow_jvms != NULL, "must be"); |
|
726 |
kit.add_exception_states_from(slow_jvms); |
|
727 |
kit.set_map(slow_jvms->map()); |
|
728 |
if (!kit.stopped()) |
|
729 |
slow_map = kit.stop(); |
|
730 |
} |
|
731 |
} |
|
732 |
||
733 |
if (kit.stopped()) { |
|
734 |
// Predicate is always false. |
|
735 |
kit.set_jvms(slow_jvms); |
|
736 |
return kit.transfer_exceptions_into_jvms(); |
|
737 |
} |
|
738 |
||
739 |
// Generate intrinsic code: |
|
740 |
JVMState* new_jvms = _intrinsic->generate(kit.sync_jvms()); |
|
741 |
if (new_jvms == NULL) { |
|
742 |
// Intrinsic failed, so use slow code or make a direct call. |
|
743 |
if (slow_map == NULL) { |
|
744 |
CallGenerator* cg = CallGenerator::for_direct_call(method()); |
|
745 |
new_jvms = cg->generate(kit.sync_jvms()); |
|
746 |
} else { |
|
747 |
kit.set_jvms(slow_jvms); |
|
748 |
return kit.transfer_exceptions_into_jvms(); |
|
749 |
} |
|
750 |
} |
|
751 |
kit.add_exception_states_from(new_jvms); |
|
752 |
kit.set_jvms(new_jvms); |
|
753 |
||
754 |
// Need to merge slow and fast? |
|
755 |
if (slow_map == NULL) { |
|
756 |
// The fast path is the only path remaining. |
|
757 |
return kit.transfer_exceptions_into_jvms(); |
|
758 |
} |
|
759 |
||
760 |
if (kit.stopped()) { |
|
761 |
// Intrinsic method threw an exception, so it's just the slow path after all. |
|
762 |
kit.set_jvms(slow_jvms); |
|
763 |
return kit.transfer_exceptions_into_jvms(); |
|
764 |
} |
|
765 |
||
766 |
// Finish the diamond. |
|
767 |
kit.C->set_has_split_ifs(true); // Has chance for split-if optimization |
|
768 |
RegionNode* region = new (kit.C) RegionNode(3); |
|
769 |
region->init_req(1, kit.control()); |
|
770 |
region->init_req(2, slow_map->control()); |
|
771 |
kit.set_control(gvn.transform(region)); |
|
772 |
Node* iophi = PhiNode::make(region, kit.i_o(), Type::ABIO); |
|
773 |
iophi->set_req(2, slow_map->i_o()); |
|
774 |
kit.set_i_o(gvn.transform(iophi)); |
|
775 |
kit.merge_memory(slow_map->merged_memory(), region, 2); |
|
776 |
uint tos = kit.jvms()->stkoff() + kit.sp(); |
|
777 |
uint limit = slow_map->req(); |
|
778 |
for (uint i = TypeFunc::Parms; i < limit; i++) { |
|
779 |
// Skip unused stack slots; fast forward to monoff(); |
|
780 |
if (i == tos) { |
|
781 |
i = kit.jvms()->monoff(); |
|
782 |
if( i >= limit ) break; |
|
783 |
} |
|
784 |
Node* m = kit.map()->in(i); |
|
785 |
Node* n = slow_map->in(i); |
|
786 |
if (m != n) { |
|
787 |
const Type* t = gvn.type(m)->meet(gvn.type(n)); |
|
788 |
Node* phi = PhiNode::make(region, m, t); |
|
789 |
phi->set_req(2, n); |
|
790 |
kit.map()->set_req(i, gvn.transform(phi)); |
|
791 |
} |
|
792 |
} |
|
793 |
return kit.transfer_exceptions_into_jvms(); |
|
794 |
} |
|
795 |
||
1 | 796 |
//-------------------------UncommonTrapCallGenerator----------------------------- |
797 |
// Internal class which handles all out-of-line calls checking receiver type. |
|
798 |
class UncommonTrapCallGenerator : public CallGenerator { |
|
799 |
Deoptimization::DeoptReason _reason; |
|
800 |
Deoptimization::DeoptAction _action; |
|
801 |
||
802 |
public: |
|
803 |
UncommonTrapCallGenerator(ciMethod* m, |
|
804 |
Deoptimization::DeoptReason reason, |
|
805 |
Deoptimization::DeoptAction action) |
|
806 |
: CallGenerator(m) |
|
807 |
{ |
|
808 |
_reason = reason; |
|
809 |
_action = action; |
|
810 |
} |
|
811 |
||
812 |
virtual bool is_virtual() const { ShouldNotReachHere(); return false; } |
|
813 |
virtual bool is_trap() const { return true; } |
|
814 |
||
815 |
virtual JVMState* generate(JVMState* jvms); |
|
816 |
}; |
|
817 |
||
818 |
||
819 |
CallGenerator* |
|
820 |
CallGenerator::for_uncommon_trap(ciMethod* m, |
|
821 |
Deoptimization::DeoptReason reason, |
|
822 |
Deoptimization::DeoptAction action) { |
|
823 |
return new UncommonTrapCallGenerator(m, reason, action); |
|
824 |
} |
|
825 |
||
826 |
||
827 |
JVMState* UncommonTrapCallGenerator::generate(JVMState* jvms) { |
|
828 |
GraphKit kit(jvms); |
|
829 |
// Take the trap with arguments pushed on the stack. (Cf. null_check_receiver). |
|
830 |
int nargs = method()->arg_size(); |
|
831 |
kit.inc_sp(nargs); |
|
832 |
assert(nargs <= kit.sp() && kit.sp() <= jvms->stk_size(), "sane sp w/ args pushed"); |
|
833 |
if (_reason == Deoptimization::Reason_class_check && |
|
834 |
_action == Deoptimization::Action_maybe_recompile) { |
|
835 |
// Temp fix for 6529811 |
|
836 |
// Don't allow uncommon_trap to override our decision to recompile in the event |
|
837 |
// of a class cast failure for a monomorphic call as it will never let us convert |
|
838 |
// the call to either bi-morphic or megamorphic and can lead to unc-trap loops |
|
839 |
bool keep_exact_action = true; |
|
840 |
kit.uncommon_trap(_reason, _action, NULL, "monomorphic vcall checkcast", false, keep_exact_action); |
|
841 |
} else { |
|
842 |
kit.uncommon_trap(_reason, _action); |
|
843 |
} |
|
844 |
return kit.transfer_exceptions_into_jvms(); |
|
845 |
} |
|
846 |
||
847 |
// (Note: Moved hook_up_call to GraphKit::set_edges_for_java_call.) |
|
848 |
||
849 |
// (Node: Merged hook_up_exits into ParseGenerator::generate.) |
|
850 |
||
851 |
#define NODES_OVERHEAD_PER_METHOD (30.0) |
|
852 |
#define NODES_PER_BYTECODE (9.5) |
|
853 |
||
854 |
void WarmCallInfo::init(JVMState* call_site, ciMethod* call_method, ciCallProfile& profile, float prof_factor) { |
|
855 |
int call_count = profile.count(); |
|
856 |
int code_size = call_method->code_size(); |
|
857 |
||
858 |
// Expected execution count is based on the historical count: |
|
859 |
_count = call_count < 0 ? 1 : call_site->method()->scale_count(call_count, prof_factor); |
|
860 |
||
861 |
// Expected profit from inlining, in units of simple call-overheads. |
|
862 |
_profit = 1.0; |
|
863 |
||
864 |
// Expected work performed by the call in units of call-overheads. |
|
865 |
// %%% need an empirical curve fit for "work" (time in call) |
|
866 |
float bytecodes_per_call = 3; |
|
867 |
_work = 1.0 + code_size / bytecodes_per_call; |
|
868 |
||
869 |
// Expected size of compilation graph: |
|
870 |
// -XX:+PrintParseStatistics once reported: |
|
871 |
// Methods seen: 9184 Methods parsed: 9184 Nodes created: 1582391 |
|
872 |
// Histogram of 144298 parsed bytecodes: |
|
873 |
// %%% Need an better predictor for graph size. |
|
874 |
_size = NODES_OVERHEAD_PER_METHOD + (NODES_PER_BYTECODE * code_size); |
|
875 |
} |
|
876 |
||
877 |
// is_cold: Return true if the node should never be inlined. |
|
878 |
// This is true if any of the key metrics are extreme. |
|
879 |
bool WarmCallInfo::is_cold() const { |
|
880 |
if (count() < WarmCallMinCount) return true; |
|
881 |
if (profit() < WarmCallMinProfit) return true; |
|
882 |
if (work() > WarmCallMaxWork) return true; |
|
883 |
if (size() > WarmCallMaxSize) return true; |
|
884 |
return false; |
|
885 |
} |
|
886 |
||
887 |
// is_hot: Return true if the node should be inlined immediately. |
|
888 |
// This is true if any of the key metrics are extreme. |
|
889 |
bool WarmCallInfo::is_hot() const { |
|
890 |
assert(!is_cold(), "eliminate is_cold cases before testing is_hot"); |
|
891 |
if (count() >= HotCallCountThreshold) return true; |
|
892 |
if (profit() >= HotCallProfitThreshold) return true; |
|
893 |
if (work() <= HotCallTrivialWork) return true; |
|
894 |
if (size() <= HotCallTrivialSize) return true; |
|
895 |
return false; |
|
896 |
} |
|
897 |
||
898 |
// compute_heat: |
|
899 |
float WarmCallInfo::compute_heat() const { |
|
900 |
assert(!is_cold(), "compute heat only on warm nodes"); |
|
901 |
assert(!is_hot(), "compute heat only on warm nodes"); |
|
902 |
int min_size = MAX2(0, (int)HotCallTrivialSize); |
|
903 |
int max_size = MIN2(500, (int)WarmCallMaxSize); |
|
904 |
float method_size = (size() - min_size) / MAX2(1, max_size - min_size); |
|
905 |
float size_factor; |
|
906 |
if (method_size < 0.05) size_factor = 4; // 2 sigmas better than avg. |
|
907 |
else if (method_size < 0.15) size_factor = 2; // 1 sigma better than avg. |
|
908 |
else if (method_size < 0.5) size_factor = 1; // better than avg. |
|
909 |
else size_factor = 0.5; // worse than avg. |
|
910 |
return (count() * profit() * size_factor); |
|
911 |
} |
|
912 |
||
913 |
bool WarmCallInfo::warmer_than(WarmCallInfo* that) { |
|
914 |
assert(this != that, "compare only different WCIs"); |
|
915 |
assert(this->heat() != 0 && that->heat() != 0, "call compute_heat 1st"); |
|
916 |
if (this->heat() > that->heat()) return true; |
|
917 |
if (this->heat() < that->heat()) return false; |
|
918 |
assert(this->heat() == that->heat(), "no NaN heat allowed"); |
|
919 |
// Equal heat. Break the tie some other way. |
|
920 |
if (!this->call() || !that->call()) return (address)this > (address)that; |
|
921 |
return this->call()->_idx > that->call()->_idx; |
|
922 |
} |
|
923 |
||
924 |
//#define UNINIT_NEXT ((WarmCallInfo*)badAddress) |
|
925 |
#define UNINIT_NEXT ((WarmCallInfo*)NULL) |
|
926 |
||
927 |
WarmCallInfo* WarmCallInfo::insert_into(WarmCallInfo* head) { |
|
928 |
assert(next() == UNINIT_NEXT, "not yet on any list"); |
|
929 |
WarmCallInfo* prev_p = NULL; |
|
930 |
WarmCallInfo* next_p = head; |
|
931 |
while (next_p != NULL && next_p->warmer_than(this)) { |
|
932 |
prev_p = next_p; |
|
933 |
next_p = prev_p->next(); |
|
934 |
} |
|
935 |
// Install this between prev_p and next_p. |
|
936 |
this->set_next(next_p); |
|
937 |
if (prev_p == NULL) |
|
938 |
head = this; |
|
939 |
else |
|
940 |
prev_p->set_next(this); |
|
941 |
return head; |
|
942 |
} |
|
943 |
||
944 |
WarmCallInfo* WarmCallInfo::remove_from(WarmCallInfo* head) { |
|
945 |
WarmCallInfo* prev_p = NULL; |
|
946 |
WarmCallInfo* next_p = head; |
|
947 |
while (next_p != this) { |
|
948 |
assert(next_p != NULL, "this must be in the list somewhere"); |
|
949 |
prev_p = next_p; |
|
950 |
next_p = prev_p->next(); |
|
951 |
} |
|
952 |
next_p = this->next(); |
|
953 |
debug_only(this->set_next(UNINIT_NEXT)); |
|
954 |
// Remove this from between prev_p and next_p. |
|
955 |
if (prev_p == NULL) |
|
956 |
head = next_p; |
|
957 |
else |
|
958 |
prev_p->set_next(next_p); |
|
959 |
return head; |
|
960 |
} |
|
961 |
||
9099
bdeb610d3cb1
6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")
never
parents:
8676
diff
changeset
|
962 |
WarmCallInfo WarmCallInfo::_always_hot(WarmCallInfo::MAX_VALUE(), WarmCallInfo::MAX_VALUE(), |
bdeb610d3cb1
6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")
never
parents:
8676
diff
changeset
|
963 |
WarmCallInfo::MIN_VALUE(), WarmCallInfo::MIN_VALUE()); |
bdeb610d3cb1
6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")
never
parents:
8676
diff
changeset
|
964 |
WarmCallInfo WarmCallInfo::_always_cold(WarmCallInfo::MIN_VALUE(), WarmCallInfo::MIN_VALUE(), |
bdeb610d3cb1
6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")
never
parents:
8676
diff
changeset
|
965 |
WarmCallInfo::MAX_VALUE(), WarmCallInfo::MAX_VALUE()); |
1 | 966 |
|
967 |
WarmCallInfo* WarmCallInfo::always_hot() { |
|
9099
bdeb610d3cb1
6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")
never
parents:
8676
diff
changeset
|
968 |
assert(_always_hot.is_hot(), "must always be hot"); |
bdeb610d3cb1
6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")
never
parents:
8676
diff
changeset
|
969 |
return &_always_hot; |
1 | 970 |
} |
971 |
||
972 |
WarmCallInfo* WarmCallInfo::always_cold() { |
|
9099
bdeb610d3cb1
6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")
never
parents:
8676
diff
changeset
|
973 |
assert(_always_cold.is_cold(), "must always be cold"); |
bdeb610d3cb1
6909440: C2 fails with assertion (_always_cold->is_cold(),"must always be cold")
never
parents:
8676
diff
changeset
|
974 |
return &_always_cold; |
1 | 975 |
} |
976 |
||
977 |
||
978 |
#ifndef PRODUCT |
|
979 |
||
980 |
void WarmCallInfo::print() const { |
|
981 |
tty->print("%s : C=%6.1f P=%6.1f W=%6.1f S=%6.1f H=%6.1f -> %p", |
|
982 |
is_cold() ? "cold" : is_hot() ? "hot " : "warm", |
|
983 |
count(), profit(), work(), size(), compute_heat(), next()); |
|
984 |
tty->cr(); |
|
985 |
if (call() != NULL) call()->dump(); |
|
986 |
} |
|
987 |
||
988 |
void print_wci(WarmCallInfo* ci) { |
|
989 |
ci->print(); |
|
990 |
} |
|
991 |
||
992 |
void WarmCallInfo::print_all() const { |
|
993 |
for (const WarmCallInfo* p = this; p != NULL; p = p->next()) |
|
994 |
p->print(); |
|
995 |
} |
|
996 |
||
997 |
int WarmCallInfo::count_all() const { |
|
998 |
int cnt = 0; |
|
999 |
for (const WarmCallInfo* p = this; p != NULL; p = p->next()) |
|
1000 |
cnt++; |
|
1001 |
return cnt; |
|
1002 |
} |
|
1003 |
||
1004 |
#endif //PRODUCT |