Wed, 15 Feb 2012 16:29:40 -0800
7142680: default GC affected by jvm path
Summary: Removed old tiered code
Reviewed-by: never, kvn
duke@435 | 1 | /* |
iveresov@2138 | 2 | * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_RUNTIME_COMPILATIONPOLICY_HPP |
stefank@2314 | 26 | #define SHARE_VM_RUNTIME_COMPILATIONPOLICY_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "code/nmethod.hpp" |
stefank@2314 | 29 | #include "compiler/compileBroker.hpp" |
stefank@2314 | 30 | #include "memory/allocation.hpp" |
stefank@2314 | 31 | #include "runtime/vm_operations.hpp" |
stefank@2314 | 32 | #include "utilities/growableArray.hpp" |
stefank@2314 | 33 | |
duke@435 | 34 | // The CompilationPolicy selects which method (if any) should be compiled. |
duke@435 | 35 | // It also decides which methods must always be compiled (i.e., are never |
duke@435 | 36 | // interpreted). |
iveresov@2138 | 37 | class CompileTask; |
iveresov@2138 | 38 | class CompileQueue; |
duke@435 | 39 | |
duke@435 | 40 | class CompilationPolicy : public CHeapObj { |
duke@435 | 41 | static CompilationPolicy* _policy; |
duke@435 | 42 | // Accumulated time |
duke@435 | 43 | static elapsedTimer _accumulated_time; |
duke@435 | 44 | |
duke@435 | 45 | static bool _in_vm_startup; |
iveresov@2138 | 46 | public: |
duke@435 | 47 | static void set_in_vm_startup(bool in_vm_startup) { _in_vm_startup = in_vm_startup; } |
duke@435 | 48 | static void completed_vm_startup(); |
iveresov@2138 | 49 | static bool delay_compilation_during_startup() { return _in_vm_startup; } |
duke@435 | 50 | |
iveresov@2138 | 51 | // m must be compiled before executing it |
iveresov@2138 | 52 | static bool must_be_compiled(methodHandle m, int comp_level = CompLevel_all); |
iveresov@2138 | 53 | // m is allowed to be compiled |
iveresov@2138 | 54 | static bool can_be_compiled(methodHandle m, int comp_level = CompLevel_all); |
iveresov@2138 | 55 | static bool is_compilation_enabled(); |
duke@435 | 56 | static void set_policy(CompilationPolicy* policy) { _policy = policy; } |
iveresov@2138 | 57 | static CompilationPolicy* policy() { return _policy; } |
duke@435 | 58 | |
duke@435 | 59 | // Profiling |
duke@435 | 60 | elapsedTimer* accumulated_time() { return &_accumulated_time; } |
duke@435 | 61 | void print_time() PRODUCT_RETURN; |
iveresov@3035 | 62 | // Return initial compile level that is used with Xcomp |
iveresov@3035 | 63 | virtual CompLevel initial_compile_level() = 0; |
iveresov@2138 | 64 | virtual int compiler_count(CompLevel comp_level) = 0; |
iveresov@2138 | 65 | // main notification entry, return a pointer to an nmethod if the OSR is required, |
iveresov@2138 | 66 | // returns NULL otherwise. |
iveresov@3452 | 67 | virtual nmethod* event(methodHandle method, methodHandle inlinee, int branch_bci, int bci, CompLevel comp_level, nmethod* nm, JavaThread* thread) = 0; |
iveresov@2138 | 68 | // safepoint() is called at the end of the safepoint |
iveresov@2138 | 69 | virtual void do_safepoint_work() = 0; |
iveresov@2138 | 70 | // reprofile request |
iveresov@2138 | 71 | virtual void reprofile(ScopeDesc* trap_scope, bool is_osr) = 0; |
iveresov@2138 | 72 | // delay_compilation(method) can be called by any component of the runtime to notify the policy |
iveresov@2138 | 73 | // that it's recommended to delay the complation of this method. |
iveresov@2138 | 74 | virtual void delay_compilation(methodOop method) = 0; |
iveresov@2138 | 75 | // disable_compilation() is called whenever the runtime decides to disable compilation of the |
iveresov@2138 | 76 | // specified method. |
iveresov@2138 | 77 | virtual void disable_compilation(methodOop method) = 0; |
iveresov@2138 | 78 | // Select task is called by CompileBroker. The queue is guaranteed to have at least one |
iveresov@2138 | 79 | // element and is locked. The function should select one and return it. |
iveresov@2138 | 80 | virtual CompileTask* select_task(CompileQueue* compile_queue) = 0; |
iveresov@2138 | 81 | // Tell the runtime if we think a given method is adequately profiled. |
iveresov@2138 | 82 | virtual bool is_mature(methodOop method) = 0; |
iveresov@2138 | 83 | // Do policy initialization |
iveresov@2138 | 84 | virtual void initialize() = 0; |
iveresov@2988 | 85 | virtual bool should_not_inline(ciEnv* env, ciMethod* method) { return false; } |
duke@435 | 86 | }; |
duke@435 | 87 | |
iveresov@2138 | 88 | // A base class for baseline policies. |
iveresov@2138 | 89 | class NonTieredCompPolicy : public CompilationPolicy { |
iveresov@2138 | 90 | int _compiler_count; |
iveresov@2138 | 91 | protected: |
iveresov@2138 | 92 | static void trace_frequency_counter_overflow(methodHandle m, int branch_bci, int bci); |
iveresov@2138 | 93 | static void trace_osr_request(methodHandle method, nmethod* osr, int bci); |
iveresov@2138 | 94 | static void trace_osr_completion(nmethod* osr_nm); |
iveresov@2138 | 95 | void reset_counter_for_invocation_event(methodHandle method); |
iveresov@2138 | 96 | void reset_counter_for_back_branch_event(methodHandle method); |
iveresov@2138 | 97 | public: |
iveresov@2138 | 98 | NonTieredCompPolicy() : _compiler_count(0) { } |
iveresov@3035 | 99 | virtual CompLevel initial_compile_level() { return CompLevel_initial_compile; } |
iveresov@2138 | 100 | virtual int compiler_count(CompLevel comp_level); |
iveresov@2138 | 101 | virtual void do_safepoint_work(); |
iveresov@2138 | 102 | virtual void reprofile(ScopeDesc* trap_scope, bool is_osr); |
iveresov@2138 | 103 | virtual void delay_compilation(methodOop method); |
iveresov@2138 | 104 | virtual void disable_compilation(methodOop method); |
iveresov@2138 | 105 | virtual bool is_mature(methodOop method); |
iveresov@2138 | 106 | virtual void initialize(); |
iveresov@2138 | 107 | virtual CompileTask* select_task(CompileQueue* compile_queue); |
iveresov@3452 | 108 | virtual nmethod* event(methodHandle method, methodHandle inlinee, int branch_bci, int bci, CompLevel comp_level, nmethod* nm, JavaThread* thread); |
iveresov@3452 | 109 | virtual void method_invocation_event(methodHandle m, JavaThread* thread) = 0; |
iveresov@3452 | 110 | virtual void method_back_branch_event(methodHandle m, int bci, JavaThread* thread) = 0; |
iveresov@2138 | 111 | }; |
iveresov@2138 | 112 | |
iveresov@2138 | 113 | class SimpleCompPolicy : public NonTieredCompPolicy { |
duke@435 | 114 | public: |
iveresov@3452 | 115 | virtual void method_invocation_event(methodHandle m, JavaThread* thread); |
iveresov@3452 | 116 | virtual void method_back_branch_event(methodHandle m, int bci, JavaThread* thread); |
duke@435 | 117 | }; |
duke@435 | 118 | |
duke@435 | 119 | // StackWalkCompPolicy - existing C2 policy |
duke@435 | 120 | |
duke@435 | 121 | #ifdef COMPILER2 |
iveresov@2138 | 122 | class StackWalkCompPolicy : public NonTieredCompPolicy { |
duke@435 | 123 | public: |
iveresov@3452 | 124 | virtual void method_invocation_event(methodHandle m, JavaThread* thread); |
iveresov@3452 | 125 | virtual void method_back_branch_event(methodHandle m, int bci, JavaThread* thread); |
duke@435 | 126 | |
duke@435 | 127 | private: |
duke@435 | 128 | RFrame* findTopInlinableFrame(GrowableArray<RFrame*>* stack); |
duke@435 | 129 | RFrame* senderOf(RFrame* rf, GrowableArray<RFrame*>* stack); |
duke@435 | 130 | |
duke@435 | 131 | // the following variables hold values computed by the last inlining decision |
duke@435 | 132 | // they are used for performance debugging only (print better messages) |
duke@435 | 133 | static const char* _msg; // reason for not inlining |
duke@435 | 134 | |
duke@435 | 135 | static const char* shouldInline (methodHandle callee, float frequency, int cnt); |
duke@435 | 136 | // positive filter: should send be inlined? returns NULL (--> yes) or rejection msg |
duke@435 | 137 | static const char* shouldNotInline(methodHandle callee); |
duke@435 | 138 | // negative filter: should send NOT be inlined? returns NULL (--> inline) or rejection msg |
duke@435 | 139 | |
duke@435 | 140 | }; |
duke@435 | 141 | #endif |
stefank@2314 | 142 | |
stefank@2314 | 143 | #endif // SHARE_VM_RUNTIME_COMPILATIONPOLICY_HPP |