Mercurial > hg > graal-jvmci-8
annotate src/share/vm/runtime/compilationPolicy.hpp @ 22764:9c0966b935a9
converted select_task_blocking_aware into select_task_helper (GRAAL-1387)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Fri, 08 Jan 2016 23:45:00 +0100 |
parents | 9d78d44d3aac |
children | 7ae6a635fad0 |
rev | line source |
---|---|
0 | 1 /* |
17524 | 2 * Copyright (c) 2000, 2013, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
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 |
6197 | 40 class CompilationPolicy : public CHeapObj<mtCompiler> { |
0 | 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); | |
12073 | 55 // m is allowed to be osr compiled |
56 static bool can_be_osr_compiled(methodHandle m, int comp_level = CompLevel_all); | |
1783 | 57 static bool is_compilation_enabled(); |
0 | 58 static void set_policy(CompilationPolicy* policy) { _policy = policy; } |
1783 | 59 static CompilationPolicy* policy() { return _policy; } |
0 | 60 |
22764
9c0966b935a9
converted select_task_blocking_aware into select_task_helper (GRAAL-1387)
Doug Simon <doug.simon@oracle.com>
parents:
22762
diff
changeset
|
61 static CompileTask* select_task_helper(CompileQueue* compile_queue); |
22762
9d78d44d3aac
improved JVMCI support for blocking compilation (GRAAL-1387)
Doug Simon <doug.simon@oracle.com>
parents:
17524
diff
changeset
|
62 |
0 | 63 // Profiling |
64 elapsedTimer* accumulated_time() { return &_accumulated_time; } | |
65 void print_time() PRODUCT_RETURN; | |
3837
43f9d800f276
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
3791
diff
changeset
|
66 // Return initial compile level that is used with Xcomp |
43f9d800f276
7066339: Tiered: policy should make consistent decisions about osr levels
iveresov
parents:
3791
diff
changeset
|
67 virtual CompLevel initial_compile_level() = 0; |
1783 | 68 virtual int compiler_count(CompLevel comp_level) = 0; |
69 // main notification entry, return a pointer to an nmethod if the OSR is required, | |
70 // returns NULL otherwise. | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3837
diff
changeset
|
71 virtual nmethod* event(methodHandle method, methodHandle inlinee, int branch_bci, int bci, CompLevel comp_level, nmethod* nm, JavaThread* thread) = 0; |
1783 | 72 // safepoint() is called at the end of the safepoint |
73 virtual void do_safepoint_work() = 0; | |
74 // reprofile request | |
75 virtual void reprofile(ScopeDesc* trap_scope, bool is_osr) = 0; | |
76 // delay_compilation(method) can be called by any component of the runtime to notify the policy | |
14909 | 77 // that it's recommended to delay the complation of this method. |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
78 virtual void delay_compilation(Method* method) = 0; |
1783 | 79 // disable_compilation() is called whenever the runtime decides to disable compilation of the |
80 // specified method. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
81 virtual void disable_compilation(Method* method) = 0; |
1783 | 82 // Select task is called by CompileBroker. The queue is guaranteed to have at least one |
83 // element and is locked. The function should select one and return it. | |
84 virtual CompileTask* select_task(CompileQueue* compile_queue) = 0; | |
85 // Tell the runtime if we think a given method is adequately profiled. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
86 virtual bool is_mature(Method* method) = 0; |
1783 | 87 // Do policy initialization |
88 virtual void initialize() = 0; | |
3791
2c359f27615c
7057120: Tiered: Allow C1 to inline methods with loops
iveresov
parents:
1972
diff
changeset
|
89 virtual bool should_not_inline(ciEnv* env, ciMethod* method) { return false; } |
0 | 90 }; |
91 | |
1783 | 92 // A base class for baseline policies. |
93 class NonTieredCompPolicy : public CompilationPolicy { | |
94 int _compiler_count; | |
95 protected: | |
96 static void trace_frequency_counter_overflow(methodHandle m, int branch_bci, int bci); | |
97 static void trace_osr_request(methodHandle method, nmethod* osr, int bci); | |
98 static void trace_osr_completion(nmethod* osr_nm); | |
99 void reset_counter_for_invocation_event(methodHandle method); | |
100 void reset_counter_for_back_branch_event(methodHandle method); | |
101 public: | |
102 NonTieredCompPolicy() : _compiler_count(0) { } | |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
6725
diff
changeset
|
103 virtual CompLevel initial_compile_level() { return CompLevel_highest_tier; } |
1783 | 104 virtual int compiler_count(CompLevel comp_level); |
105 virtual void do_safepoint_work(); | |
106 virtual void reprofile(ScopeDesc* trap_scope, bool is_osr); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
107 virtual void delay_compilation(Method* method); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
108 virtual void disable_compilation(Method* method); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
109 virtual bool is_mature(Method* method); |
1783 | 110 virtual void initialize(); |
111 virtual CompileTask* select_task(CompileQueue* compile_queue); | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3837
diff
changeset
|
112 virtual nmethod* event(methodHandle method, methodHandle inlinee, int branch_bci, int bci, CompLevel comp_level, nmethod* nm, JavaThread* thread); |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3837
diff
changeset
|
113 virtual void method_invocation_event(methodHandle m, JavaThread* thread) = 0; |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3837
diff
changeset
|
114 virtual void method_back_branch_event(methodHandle m, int bci, JavaThread* thread) = 0; |
1783 | 115 }; |
116 | |
117 class SimpleCompPolicy : public NonTieredCompPolicy { | |
0 | 118 public: |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3837
diff
changeset
|
119 virtual void method_invocation_event(methodHandle m, JavaThread* thread); |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3837
diff
changeset
|
120 virtual void method_back_branch_event(methodHandle m, int bci, JavaThread* thread); |
0 | 121 }; |
122 | |
123 // StackWalkCompPolicy - existing C2 policy | |
124 | |
125 #ifdef COMPILER2 | |
1783 | 126 class StackWalkCompPolicy : public NonTieredCompPolicy { |
0 | 127 public: |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3837
diff
changeset
|
128 virtual void method_invocation_event(methodHandle m, JavaThread* thread); |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3837
diff
changeset
|
129 virtual void method_back_branch_event(methodHandle m, int bci, JavaThread* thread); |
0 | 130 |
131 private: | |
132 RFrame* findTopInlinableFrame(GrowableArray<RFrame*>* stack); | |
133 RFrame* senderOf(RFrame* rf, GrowableArray<RFrame*>* stack); | |
134 | |
135 // the following variables hold values computed by the last inlining decision | |
136 // they are used for performance debugging only (print better messages) | |
137 static const char* _msg; // reason for not inlining | |
138 | |
139 static const char* shouldInline (methodHandle callee, float frequency, int cnt); | |
140 // positive filter: should send be inlined? returns NULL (--> yes) or rejection msg | |
141 static const char* shouldNotInline(methodHandle callee); | |
142 // negative filter: should send NOT be inlined? returns NULL (--> inline) or rejection msg | |
143 | |
144 }; | |
145 #endif | |
1972 | 146 |
147 #endif // SHARE_VM_RUNTIME_COMPILATIONPOLICY_HPP |