Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/compilationPolicy.hpp @ 2607:008adfd6d850
Fixed the stateBefore of invokes and monitorenter instructions to include the arguments of the instruction.
This is necessary to ensure correct continuation in the interpreter when the stateBefore is used as a deoptimization point.
| author | Thomas Wuerthinger <thomas@wuerthinger.net> |
|---|---|
| date | Fri, 06 May 2011 17:47:17 +0200 |
| parents | f95d63e2154a |
| children | 409ef3a68dc8 2c359f27615c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1783 | 2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_RUNTIME_COMPILATIONPOLICY_HPP |
| 26 #define SHARE_VM_RUNTIME_COMPILATIONPOLICY_HPP | |
| 27 | |
| 28 #include "code/nmethod.hpp" | |
| 29 #include "compiler/compileBroker.hpp" | |
| 30 #include "memory/allocation.hpp" | |
| 31 #include "runtime/vm_operations.hpp" | |
| 32 #include "utilities/growableArray.hpp" | |
| 33 | |
| 0 | 34 // The CompilationPolicy selects which method (if any) should be compiled. |
| 35 // It also decides which methods must always be compiled (i.e., are never | |
| 36 // interpreted). | |
| 1783 | 37 class CompileTask; |
| 38 class CompileQueue; | |
| 0 | 39 |
| 40 class CompilationPolicy : public CHeapObj { | |
| 41 static CompilationPolicy* _policy; | |
| 42 // Accumulated time | |
| 43 static elapsedTimer _accumulated_time; | |
| 44 | |
| 45 static bool _in_vm_startup; | |
| 1783 | 46 public: |
| 0 | 47 static void set_in_vm_startup(bool in_vm_startup) { _in_vm_startup = in_vm_startup; } |
| 48 static void completed_vm_startup(); | |
| 1783 | 49 static bool delay_compilation_during_startup() { return _in_vm_startup; } |
| 0 | 50 |
| 1783 | 51 // m must be compiled before executing it |
| 52 static bool must_be_compiled(methodHandle m, int comp_level = CompLevel_all); | |
| 53 // m is allowed to be compiled | |
| 54 static bool can_be_compiled(methodHandle m, int comp_level = CompLevel_all); | |
| 55 static bool is_compilation_enabled(); | |
| 0 | 56 static void set_policy(CompilationPolicy* policy) { _policy = policy; } |
| 1783 | 57 static CompilationPolicy* policy() { return _policy; } |
| 0 | 58 |
| 59 // Profiling | |
| 60 elapsedTimer* accumulated_time() { return &_accumulated_time; } | |
| 61 void print_time() PRODUCT_RETURN; | |
| 1783 | 62 virtual int compiler_count(CompLevel comp_level) = 0; |
| 63 // main notification entry, return a pointer to an nmethod if the OSR is required, | |
| 64 // returns NULL otherwise. | |
| 65 virtual nmethod* event(methodHandle method, methodHandle inlinee, int branch_bci, int bci, CompLevel comp_level, TRAPS) = 0; | |
| 66 // safepoint() is called at the end of the safepoint | |
| 67 virtual void do_safepoint_work() = 0; | |
| 68 // reprofile request | |
| 69 virtual void reprofile(ScopeDesc* trap_scope, bool is_osr) = 0; | |
| 70 // delay_compilation(method) can be called by any component of the runtime to notify the policy | |
| 71 // that it's recommended to delay the complation of this method. | |
| 72 virtual void delay_compilation(methodOop method) = 0; | |
| 73 // disable_compilation() is called whenever the runtime decides to disable compilation of the | |
| 74 // specified method. | |
| 75 virtual void disable_compilation(methodOop method) = 0; | |
| 76 // Select task is called by CompileBroker. The queue is guaranteed to have at least one | |
| 77 // element and is locked. The function should select one and return it. | |
| 78 virtual CompileTask* select_task(CompileQueue* compile_queue) = 0; | |
| 79 // Tell the runtime if we think a given method is adequately profiled. | |
| 80 virtual bool is_mature(methodOop method) = 0; | |
| 81 // Do policy initialization | |
| 82 virtual void initialize() = 0; | |
| 0 | 83 }; |
| 84 | |
| 1783 | 85 // A base class for baseline policies. |
| 86 class NonTieredCompPolicy : public CompilationPolicy { | |
| 87 int _compiler_count; | |
| 88 protected: | |
| 89 static void trace_frequency_counter_overflow(methodHandle m, int branch_bci, int bci); | |
| 90 static void trace_osr_request(methodHandle method, nmethod* osr, int bci); | |
| 91 static void trace_osr_completion(nmethod* osr_nm); | |
| 92 void reset_counter_for_invocation_event(methodHandle method); | |
| 93 void reset_counter_for_back_branch_event(methodHandle method); | |
| 94 public: | |
| 95 NonTieredCompPolicy() : _compiler_count(0) { } | |
| 96 virtual int compiler_count(CompLevel comp_level); | |
| 97 virtual void do_safepoint_work(); | |
| 98 virtual void reprofile(ScopeDesc* trap_scope, bool is_osr); | |
| 99 virtual void delay_compilation(methodOop method); | |
| 100 virtual void disable_compilation(methodOop method); | |
| 101 virtual bool is_mature(methodOop method); | |
| 102 virtual void initialize(); | |
| 103 virtual CompileTask* select_task(CompileQueue* compile_queue); | |
| 104 virtual nmethod* event(methodHandle method, methodHandle inlinee, int branch_bci, int bci, CompLevel comp_level, TRAPS); | |
| 105 virtual void method_invocation_event(methodHandle m, TRAPS) = 0; | |
| 106 virtual void method_back_branch_event(methodHandle m, int bci, TRAPS) = 0; | |
| 107 }; | |
| 108 | |
| 109 class SimpleCompPolicy : public NonTieredCompPolicy { | |
| 0 | 110 public: |
| 1783 | 111 virtual void method_invocation_event(methodHandle m, TRAPS); |
| 112 virtual void method_back_branch_event(methodHandle m, int bci, TRAPS); | |
| 0 | 113 }; |
| 114 | |
| 115 // StackWalkCompPolicy - existing C2 policy | |
| 116 | |
| 117 #ifdef COMPILER2 | |
| 1783 | 118 class StackWalkCompPolicy : public NonTieredCompPolicy { |
| 0 | 119 public: |
| 1783 | 120 virtual void method_invocation_event(methodHandle m, TRAPS); |
| 121 virtual void method_back_branch_event(methodHandle m, int bci, TRAPS); | |
| 0 | 122 |
| 123 private: | |
| 124 RFrame* findTopInlinableFrame(GrowableArray<RFrame*>* stack); | |
| 125 RFrame* senderOf(RFrame* rf, GrowableArray<RFrame*>* stack); | |
| 126 | |
| 127 // the following variables hold values computed by the last inlining decision | |
| 128 // they are used for performance debugging only (print better messages) | |
| 129 static const char* _msg; // reason for not inlining | |
| 130 | |
| 131 static const char* shouldInline (methodHandle callee, float frequency, int cnt); | |
| 132 // positive filter: should send be inlined? returns NULL (--> yes) or rejection msg | |
| 133 static const char* shouldNotInline(methodHandle callee); | |
| 134 // negative filter: should send NOT be inlined? returns NULL (--> inline) or rejection msg | |
| 135 | |
| 136 }; | |
| 137 #endif | |
| 1972 | 138 |
| 139 #endif // SHARE_VM_RUNTIME_COMPILATIONPOLICY_HPP |