Mercurial > hg > truffle
annotate src/share/vm/runtime/compilationPolicy.cpp @ 18111:03259118b81b
Truffle: relax assertions for object state entries of int kind
author | Andreas Woess <andreas.woess@jku.at> |
---|---|
date | Thu, 16 Oct 2014 15:31:34 +0200 |
parents | 52b4284cb496 |
children | 2a69cbe850a8 |
rev | line source |
---|---|
0 | 1 /* |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
2 * Copyright (c) 2000, 2014, 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:
1202
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1202
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:
1202
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "code/compiledIC.hpp" | |
27 #include "code/nmethod.hpp" | |
28 #include "code/scopeDesc.hpp" | |
29 #include "compiler/compilerOracle.hpp" | |
30 #include "interpreter/interpreter.hpp" | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
31 #include "oops/methodData.hpp" |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
32 #include "oops/method.hpp" |
1972 | 33 #include "oops/oop.inline.hpp" |
34 #include "prims/nativeLookup.hpp" | |
2348
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
35 #include "runtime/advancedThresholdPolicy.hpp" |
1972 | 36 #include "runtime/compilationPolicy.hpp" |
37 #include "runtime/frame.hpp" | |
38 #include "runtime/handles.inline.hpp" | |
39 #include "runtime/rframe.hpp" | |
40 #include "runtime/simpleThresholdPolicy.hpp" | |
41 #include "runtime/stubRoutines.hpp" | |
42 #include "runtime/thread.hpp" | |
43 #include "runtime/timer.hpp" | |
44 #include "runtime/vframe.hpp" | |
45 #include "runtime/vm_operations.hpp" | |
46 #include "utilities/events.hpp" | |
47 #include "utilities/globalDefinitions.hpp" | |
13683
de839ec35cc7
schedule lambda method compilation and execution on GPU (PTX) when possible; fix a couple of bugs.
S.Bharadwaj Yadavalli <bharadwaj.yadavalli@oracle.com>
parents:
12356
diff
changeset
|
48 #ifdef GRAAL |
de839ec35cc7
schedule lambda method compilation and execution on GPU (PTX) when possible; fix a couple of bugs.
S.Bharadwaj Yadavalli <bharadwaj.yadavalli@oracle.com>
parents:
12356
diff
changeset
|
49 #include "runtime/gpu.hpp" |
de839ec35cc7
schedule lambda method compilation and execution on GPU (PTX) when possible; fix a couple of bugs.
S.Bharadwaj Yadavalli <bharadwaj.yadavalli@oracle.com>
parents:
12356
diff
changeset
|
50 #endif |
0 | 51 |
52 CompilationPolicy* CompilationPolicy::_policy; | |
53 elapsedTimer CompilationPolicy::_accumulated_time; | |
54 bool CompilationPolicy::_in_vm_startup; | |
55 | |
56 // Determine compilation policy based on command line argument | |
57 void compilationPolicy_init() { | |
58 CompilationPolicy::set_in_vm_startup(DelayCompilationDuringStartup); | |
59 | |
60 switch(CompilationPolicyChoice) { | |
61 case 0: | |
62 CompilationPolicy::set_policy(new SimpleCompPolicy()); | |
63 break; | |
64 | |
65 case 1: | |
66 #ifdef COMPILER2 | |
67 CompilationPolicy::set_policy(new StackWalkCompPolicy()); | |
68 #else | |
69 Unimplemented(); | |
70 #endif | |
71 break; | |
1783 | 72 case 2: |
73 #ifdef TIERED | |
74 CompilationPolicy::set_policy(new SimpleThresholdPolicy()); | |
75 #else | |
76 Unimplemented(); | |
77 #endif | |
78 break; | |
2348
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
79 case 3: |
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
80 #ifdef TIERED |
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
81 CompilationPolicy::set_policy(new AdvancedThresholdPolicy()); |
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
82 #else |
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
83 Unimplemented(); |
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
84 #endif |
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
85 break; |
0 | 86 default: |
2348
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
1972
diff
changeset
|
87 fatal("CompilationPolicyChoice must be in the range: [0-3]"); |
0 | 88 } |
1783 | 89 CompilationPolicy::policy()->initialize(); |
0 | 90 } |
91 | |
92 void CompilationPolicy::completed_vm_startup() { | |
93 if (TraceCompilationPolicy) { | |
94 tty->print("CompilationPolicy: completed vm startup.\n"); | |
95 } | |
96 _in_vm_startup = false; | |
97 } | |
98 | |
99 // Returns true if m must be compiled before executing it | |
100 // This is intended to force compiles for methods (usually for | |
101 // debugging) that would otherwise be interpreted for some reason. | |
1783 | 102 bool CompilationPolicy::must_be_compiled(methodHandle m, int comp_level) { |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
103 // Don't allow Xcomp to cause compiles in replay mode |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
104 if (ReplayCompiles) return false; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
105 |
0 | 106 if (m->has_compiled_code()) return false; // already compiled |
13683
de839ec35cc7
schedule lambda method compilation and execution on GPU (PTX) when possible; fix a couple of bugs.
S.Bharadwaj Yadavalli <bharadwaj.yadavalli@oracle.com>
parents:
12356
diff
changeset
|
107 |
1783 | 108 if (!can_be_compiled(m, comp_level)) return false; |
0 | 109 |
110 return !UseInterpreter || // must compile all methods | |
1202 | 111 (UseCompiler && AlwaysCompileLoopMethods && m->has_loops() && CompileBroker::should_compile_new_jobs()); // eagerly compile loop methods |
0 | 112 } |
113 | |
114 // Returns true if m is allowed to be compiled | |
1783 | 115 bool CompilationPolicy::can_be_compiled(methodHandle m, int comp_level) { |
10200
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
116 // allow any levels for WhiteBox |
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
117 assert(WhiteBoxAPI || comp_level == CompLevel_all || is_compile(comp_level), "illegal compilation level"); |
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
118 |
0 | 119 if (m->is_abstract()) return false; |
120 if (DontCompileHugeMethods && m->code_size() > HugeMethodLimit) return false; | |
121 | |
1174
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
122 // Math intrinsics should never be compiled as this can lead to |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
123 // monotonicity problems because the interpreter will prefer the |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
124 // compiled code to the intrinsic version. This can't happen in |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
125 // production because the invocation counter can't be incremented |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
126 // but we shouldn't expose the system to this problem in testing |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
127 // modes. |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
128 if (!AbstractInterpreter::can_be_compiled(m)) { |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
129 return false; |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
130 } |
1783 | 131 if (comp_level == CompLevel_all) { |
10200
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
132 if (TieredCompilation) { |
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
133 // enough to be compilable at any level for tiered |
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
134 return !m->is_not_compilable(CompLevel_simple) || !m->is_not_compilable(CompLevel_full_optimization); |
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
135 } else { |
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
136 // must be compilable at available level for non-tiered |
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
137 return !m->is_not_compilable(CompLevel_highest_tier); |
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
138 } |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
6972
diff
changeset
|
139 } else if (is_compile(comp_level)) { |
1783 | 140 return !m->is_not_compilable(comp_level); |
141 } | |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
6972
diff
changeset
|
142 return false; |
1783 | 143 } |
1174
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
0
diff
changeset
|
144 |
12073 | 145 // Returns true if m is allowed to be osr compiled |
146 bool CompilationPolicy::can_be_osr_compiled(methodHandle m, int comp_level) { | |
147 bool result = false; | |
148 if (comp_level == CompLevel_all) { | |
149 if (TieredCompilation) { | |
150 // enough to be osr compilable at any level for tiered | |
151 result = !m->is_not_osr_compilable(CompLevel_simple) || !m->is_not_osr_compilable(CompLevel_full_optimization); | |
152 } else { | |
153 // must be osr compilable at available level for non-tiered | |
154 result = !m->is_not_osr_compilable(CompLevel_highest_tier); | |
155 } | |
156 } else if (is_compile(comp_level)) { | |
157 result = !m->is_not_osr_compilable(comp_level); | |
158 } | |
159 return (result && can_be_compiled(m, comp_level)); | |
160 } | |
161 | |
1783 | 162 bool CompilationPolicy::is_compilation_enabled() { |
163 // NOTE: CompileBroker::should_compile_new_jobs() checks for UseCompiler | |
164 return !delay_compilation_during_startup() && CompileBroker::should_compile_new_jobs(); | |
0 | 165 } |
166 | |
167 #ifndef PRODUCT | |
168 void CompilationPolicy::print_time() { | |
169 tty->print_cr ("Accumulated compilationPolicy times:"); | |
170 tty->print_cr ("---------------------------"); | |
171 tty->print_cr (" Total: %3.3f sec.", _accumulated_time.seconds()); | |
172 } | |
173 | |
1783 | 174 void NonTieredCompPolicy::trace_osr_completion(nmethod* osr_nm) { |
0 | 175 if (TraceOnStackReplacement) { |
176 if (osr_nm == NULL) tty->print_cr("compilation failed"); | |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
177 else tty->print_cr("nmethod " INTPTR_FORMAT, p2i(osr_nm)); |
0 | 178 } |
179 } | |
180 #endif // !PRODUCT | |
181 | |
1783 | 182 void NonTieredCompPolicy::initialize() { |
183 // Setup the compiler thread numbers | |
184 if (CICompilerCountPerCPU) { | |
185 // Example: if CICompilerCountPerCPU is true, then we get | |
186 // max(log2(8)-1,1) = 2 compiler threads on an 8-way machine. | |
187 // May help big-app startup time. | |
188 _compiler_count = MAX2(log2_intptr(os::active_processor_count())-1,1); | |
17906
7150b16fda52
8029436: CICompilerCount is not updated when the number of compiler threads is adjusted to the number of CPUs
anoll
parents:
12073
diff
changeset
|
189 FLAG_SET_ERGO(intx, CICompilerCount, _compiler_count); |
1783 | 190 } else { |
191 _compiler_count = CICompilerCount; | |
192 } | |
193 } | |
194 | |
1821
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
195 // Note: this policy is used ONLY if TieredCompilation is off. |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
196 // compiler_count() behaves the following way: |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
197 // - with TIERED build (with both COMPILER1 and COMPILER2 defined) it should return |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
198 // zero for the c1 compilation levels, hence the particular ordering of the |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
199 // statements. |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
200 // - the same should happen when COMPILER2 is defined and COMPILER1 is not |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
201 // (server build without TIERED defined). |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
202 // - if only COMPILER1 is defined (client build), zero should be returned for |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
203 // the c2 level. |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
204 // - if neither is defined - always return zero. |
1783 | 205 int NonTieredCompPolicy::compiler_count(CompLevel comp_level) { |
1821
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
206 assert(!TieredCompilation, "This policy should not be used with TieredCompilation"); |
16021
0926a952ba55
fixed crash when -XX:-TieredCompilation -XX:-UseGraalCompilationQueue is specified
Doug Simon <doug.simon@oracle.com>
parents:
14909
diff
changeset
|
207 #if defined(COMPILER2) || defined(COMPILERGRAAL) |
1821
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
208 if (is_c2_compile(comp_level)) { |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
209 return _compiler_count; |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
210 } else { |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
211 return 0; |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
212 } |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
213 #endif |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
214 |
1783 | 215 #ifdef COMPILER1 |
216 if (is_c1_compile(comp_level)) { | |
217 return _compiler_count; | |
1821
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
218 } else { |
df015ec64052
6987115: Non-tiered compilation policy creates unnecessary C1 threads
iveresov
parents:
1783
diff
changeset
|
219 return 0; |
1783 | 220 } |
221 #endif | |
222 | |
223 return 0; | |
224 } | |
225 | |
226 void NonTieredCompPolicy::reset_counter_for_invocation_event(methodHandle m) { | |
0 | 227 // Make sure invocation and backedge counter doesn't overflow again right away |
228 // as would be the case for native methods. | |
229 | |
230 // BUT also make sure the method doesn't look like it was never executed. | |
231 // Set carry bit and reduce counter's value to min(count, CompileThreshold/2). | |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
232 MethodCounters* mcs = m->method_counters(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
233 assert(mcs != NULL, "MethodCounters cannot be NULL for profiling"); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
234 mcs->invocation_counter()->set_carry(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
235 mcs->backedge_counter()->set_carry(); |
0 | 236 |
237 assert(!m->was_never_executed(), "don't reset to 0 -- could be mistaken for never-executed"); | |
238 } | |
239 | |
1783 | 240 void NonTieredCompPolicy::reset_counter_for_back_branch_event(methodHandle m) { |
0 | 241 // Delay next back-branch event but pump up invocation counter to triger |
242 // whole method compilation. | |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
243 MethodCounters* mcs = m->method_counters(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
244 assert(mcs != NULL, "MethodCounters cannot be NULL for profiling"); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
245 InvocationCounter* i = mcs->invocation_counter(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
246 InvocationCounter* b = mcs->backedge_counter(); |
0 | 247 |
248 // Don't set invocation_counter's value too low otherwise the method will | |
249 // look like immature (ic < ~5300) which prevents the inlining based on | |
250 // the type profiling. | |
251 i->set(i->state(), CompileThreshold); | |
252 // Don't reset counter too low - it is used to check if OSR method is ready. | |
253 b->set(b->state(), CompileThreshold / 2); | |
254 } | |
255 | |
1783 | 256 // |
257 // CounterDecay | |
258 // | |
259 // Interates through invocation counters and decrements them. This | |
260 // is done at each safepoint. | |
261 // | |
262 class CounterDecay : public AllStatic { | |
263 static jlong _last_timestamp; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
264 static void do_method(Method* m) { |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
265 MethodCounters* mcs = m->method_counters(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
266 if (mcs != NULL) { |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
267 mcs->invocation_counter()->decay(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
268 } |
1783 | 269 } |
270 public: | |
271 static void decay(); | |
272 static bool is_decay_needed() { | |
273 return (os::javaTimeMillis() - _last_timestamp) > CounterDecayMinIntervalLength; | |
274 } | |
275 }; | |
276 | |
277 jlong CounterDecay::_last_timestamp = 0; | |
278 | |
279 void CounterDecay::decay() { | |
280 _last_timestamp = os::javaTimeMillis(); | |
281 | |
282 // This operation is going to be performed only at the end of a safepoint | |
283 // and hence GC's will not be going on, all Java mutators are suspended | |
284 // at this point and hence SystemDictionary_lock is also not needed. | |
285 assert(SafepointSynchronize::is_at_safepoint(), "can only be executed at a safepoint"); | |
286 int nclasses = SystemDictionary::number_of_classes(); | |
287 double classes_per_tick = nclasses * (CounterDecayMinIntervalLength * 1e-3 / | |
288 CounterHalfLifeTime); | |
289 for (int i = 0; i < classes_per_tick; i++) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
290 Klass* k = SystemDictionary::try_get_next_class(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
291 if (k != NULL && k->oop_is_instance()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
292 InstanceKlass::cast(k)->methods_do(do_method); |
1783 | 293 } |
294 } | |
295 } | |
296 | |
297 // Called at the end of the safepoint | |
298 void NonTieredCompPolicy::do_safepoint_work() { | |
299 if(UseCounterDecay && CounterDecay::is_decay_needed()) { | |
300 CounterDecay::decay(); | |
301 } | |
302 } | |
303 | |
304 void NonTieredCompPolicy::reprofile(ScopeDesc* trap_scope, bool is_osr) { | |
305 ScopeDesc* sd = trap_scope; | |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
306 MethodCounters* mcs; |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
307 InvocationCounter* c; |
1783 | 308 for (; !sd->is_top(); sd = sd->sender()) { |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
309 mcs = sd->method()->method_counters(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
310 if (mcs != NULL) { |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
311 // Reset ICs of inlined methods, since they can trigger compilations also. |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
312 mcs->invocation_counter()->reset(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
313 } |
1783 | 314 } |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
315 mcs = sd->method()->method_counters(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
316 if (mcs != NULL) { |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
317 c = mcs->invocation_counter(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
318 if (is_osr) { |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
319 // It was an OSR method, so bump the count higher. |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
320 c->set(c->state(), CompileThreshold); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
321 } else { |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
322 c->reset(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
323 } |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
324 mcs->backedge_counter()->reset(); |
1783 | 325 } |
326 } | |
327 | |
328 // This method can be called by any component of the runtime to notify the policy | |
329 // 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:
4825
diff
changeset
|
330 void NonTieredCompPolicy::delay_compilation(Method* method) { |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
331 MethodCounters* mcs = method->method_counters(); |
10106
42a42da29fd7
8012052: java/lang/invoke/6987555/Test6987555.java crashes with assert(mcs != NULL) failed: MethodCounters cannot be NULL.
jiangli
parents:
10105
diff
changeset
|
332 if (mcs != NULL) { |
42a42da29fd7
8012052: java/lang/invoke/6987555/Test6987555.java crashes with assert(mcs != NULL) failed: MethodCounters cannot be NULL.
jiangli
parents:
10105
diff
changeset
|
333 mcs->invocation_counter()->decay(); |
42a42da29fd7
8012052: java/lang/invoke/6987555/Test6987555.java crashes with assert(mcs != NULL) failed: MethodCounters cannot be NULL.
jiangli
parents:
10105
diff
changeset
|
334 mcs->backedge_counter()->decay(); |
42a42da29fd7
8012052: java/lang/invoke/6987555/Test6987555.java crashes with assert(mcs != NULL) failed: MethodCounters cannot be NULL.
jiangli
parents:
10105
diff
changeset
|
335 } |
1783 | 336 } |
337 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
338 void NonTieredCompPolicy::disable_compilation(Method* method) { |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
339 MethodCounters* mcs = method->method_counters(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
340 if (mcs != NULL) { |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
341 mcs->invocation_counter()->set_state(InvocationCounter::wait_for_nothing); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
342 mcs->backedge_counter()->set_state(InvocationCounter::wait_for_nothing); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
343 } |
1783 | 344 } |
345 | |
346 CompileTask* NonTieredCompPolicy::select_task(CompileQueue* compile_queue) { | |
347 return compile_queue->first(); | |
348 } | |
349 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
350 bool NonTieredCompPolicy::is_mature(Method* method) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
351 MethodData* mdo = method->method_data(); |
1783 | 352 assert(mdo != NULL, "Should be"); |
353 uint current = mdo->mileage_of(method); | |
354 uint initial = mdo->creation_mileage(); | |
355 if (current < initial) | |
356 return true; // some sort of overflow | |
357 uint target; | |
358 if (ProfileMaturityPercentage <= 0) | |
359 target = (uint) -ProfileMaturityPercentage; // absolute value | |
360 else | |
361 target = (uint)( (ProfileMaturityPercentage * CompileThreshold) / 100 ); | |
362 return (current >= initial + target); | |
363 } | |
364 | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
365 nmethod* NonTieredCompPolicy::event(methodHandle method, methodHandle inlinee, int branch_bci, |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
366 int bci, CompLevel comp_level, nmethod* nm, JavaThread* thread) { |
1783 | 367 assert(comp_level == CompLevel_none, "This should be only called from the interpreter"); |
368 NOT_PRODUCT(trace_frequency_counter_overflow(method, branch_bci, bci)); | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
369 if (JvmtiExport::can_post_interpreter_events() && thread->is_interp_only_mode()) { |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
370 // If certain JVMTI events (e.g. frame pop event) are requested then the |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
371 // thread is forced to remain in interpreted code. This is |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
372 // implemented partly by a check in the run_compiled_code |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
373 // section of the interpreter whether we should skip running |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
374 // compiled code, and partly by skipping OSR compiles for |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
375 // interpreted-only threads. |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
376 if (bci != InvocationEntryBci) { |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
377 reset_counter_for_back_branch_event(method); |
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
378 return NULL; |
1783 | 379 } |
380 } | |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
381 if (CompileTheWorld || ReplayCompiles) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
382 // Don't trigger other compiles in testing mode |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
383 if (bci == InvocationEntryBci) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
384 reset_counter_for_invocation_event(method); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
385 } else { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
386 reset_counter_for_back_branch_event(method); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
387 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
388 return NULL; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
389 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6940
diff
changeset
|
390 |
1783 | 391 if (bci == InvocationEntryBci) { |
392 // when code cache is full, compilation gets switched off, UseCompiler | |
393 // is set to false | |
394 if (!method->has_compiled_code() && UseCompiler) { | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
395 method_invocation_event(method, thread); |
1783 | 396 } else { |
397 // Force counter overflow on method entry, even if no compilation | |
398 // happened. (The method_invocation_event call does this also.) | |
399 reset_counter_for_invocation_event(method); | |
400 } | |
401 // compilation at an invocation overflow no longer goes and retries test for | |
402 // compiled method. We always run the loser of the race as interpreted. | |
403 // so return NULL | |
404 return NULL; | |
405 } else { | |
406 // counter overflow in a loop => try to do on-stack-replacement | |
407 nmethod* osr_nm = method->lookup_osr_nmethod_for(bci, CompLevel_highest_tier, true); | |
408 NOT_PRODUCT(trace_osr_request(method, osr_nm, bci)); | |
409 // when code cache is full, we should not compile any more... | |
410 if (osr_nm == NULL && UseCompiler) { | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
411 method_back_branch_event(method, bci, thread); |
1783 | 412 osr_nm = method->lookup_osr_nmethod_for(bci, CompLevel_highest_tier, true); |
413 } | |
414 if (osr_nm == NULL) { | |
415 reset_counter_for_back_branch_event(method); | |
416 return NULL; | |
417 } | |
418 return osr_nm; | |
419 } | |
420 return NULL; | |
421 } | |
422 | |
423 #ifndef PRODUCT | |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
424 PRAGMA_FORMAT_NONLITERAL_IGNORED_EXTERNAL |
1783 | 425 void NonTieredCompPolicy::trace_frequency_counter_overflow(methodHandle m, int branch_bci, int bci) { |
426 if (TraceInvocationCounterOverflow) { | |
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
427 MethodCounters* mcs = m->method_counters(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
428 assert(mcs != NULL, "MethodCounters cannot be NULL for profiling"); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
429 InvocationCounter* ic = mcs->invocation_counter(); |
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
6972
diff
changeset
|
430 InvocationCounter* bc = mcs->backedge_counter(); |
1783 | 431 ResourceMark rm; |
432 const char* msg = | |
433 bci == InvocationEntryBci | |
434 ? "comp-policy cntr ovfl @ %d in entry of " | |
435 : "comp-policy cntr ovfl @ %d in loop of "; | |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
436 PRAGMA_DIAG_PUSH |
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
437 PRAGMA_FORMAT_NONLITERAL_IGNORED_INTERNAL |
1783 | 438 tty->print(msg, bci); |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
439 PRAGMA_DIAG_POP |
1783 | 440 m->print_value(); |
441 tty->cr(); | |
442 ic->print(); | |
443 bc->print(); | |
444 if (ProfileInterpreter) { | |
445 if (bci != InvocationEntryBci) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
446 MethodData* mdo = m->method_data(); |
1783 | 447 if (mdo != NULL) { |
448 int count = mdo->bci_to_data(branch_bci)->as_JumpData()->taken(); | |
449 tty->print_cr("back branch count = %d", count); | |
450 } | |
451 } | |
452 } | |
453 } | |
454 } | |
455 | |
456 void NonTieredCompPolicy::trace_osr_request(methodHandle method, nmethod* osr, int bci) { | |
457 if (TraceOnStackReplacement) { | |
458 ResourceMark rm; | |
459 tty->print(osr != NULL ? "Reused OSR entry for " : "Requesting OSR entry for "); | |
460 method->print_short_name(tty); | |
461 tty->print_cr(" at bci %d", bci); | |
462 } | |
463 } | |
464 #endif // !PRODUCT | |
465 | |
0 | 466 // SimpleCompPolicy - compile current method |
467 | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
468 void SimpleCompPolicy::method_invocation_event(methodHandle m, JavaThread* thread) { |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
469 const int comp_level = CompLevel_highest_tier; |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
470 const int hot_count = m->invocation_count(); |
0 | 471 reset_counter_for_invocation_event(m); |
472 const char* comment = "count"; | |
473 | |
10200
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
474 if (is_compilation_enabled() && can_be_compiled(m, comp_level)) { |
0 | 475 nmethod* nm = m->code(); |
476 if (nm == NULL ) { | |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
477 CompileBroker::compile_method(m, InvocationEntryBci, comp_level, m, hot_count, comment, thread); |
0 | 478 } |
479 } | |
480 } | |
481 | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
482 void SimpleCompPolicy::method_back_branch_event(methodHandle m, int bci, JavaThread* thread) { |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
483 const int comp_level = CompLevel_highest_tier; |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
484 const int hot_count = m->backedge_count(); |
0 | 485 const char* comment = "backedge_count"; |
486 | |
12073 | 487 if (is_compilation_enabled() && can_be_osr_compiled(m, comp_level)) { |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
488 CompileBroker::compile_method(m, bci, comp_level, m, hot_count, comment, thread); |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
489 NOT_PRODUCT(trace_osr_completion(m->lookup_osr_nmethod_for(bci, comp_level, true));) |
0 | 490 } |
491 } | |
492 // StackWalkCompPolicy - walk up stack to find a suitable method to compile | |
493 | |
494 #ifdef COMPILER2 | |
495 const char* StackWalkCompPolicy::_msg = NULL; | |
496 | |
497 | |
498 // Consider m for compilation | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
499 void StackWalkCompPolicy::method_invocation_event(methodHandle m, JavaThread* thread) { |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
500 const int comp_level = CompLevel_highest_tier; |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
501 const int hot_count = m->invocation_count(); |
0 | 502 reset_counter_for_invocation_event(m); |
503 const char* comment = "count"; | |
504 | |
10200
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
505 if (is_compilation_enabled() && m->code() == NULL && can_be_compiled(m, comp_level)) { |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
506 ResourceMark rm(thread); |
0 | 507 frame fr = thread->last_frame(); |
508 assert(fr.is_interpreted_frame(), "must be interpreted"); | |
509 assert(fr.interpreter_frame_method() == m(), "bad method"); | |
510 | |
511 if (TraceCompilationPolicy) { | |
512 tty->print("method invocation trigger: "); | |
513 m->print_short_name(tty); | |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
514 tty->print(" ( interpreted " INTPTR_FORMAT ", size=%d ) ", p2i((address)m()), m->code_size()); |
0 | 515 } |
516 RegisterMap reg_map(thread, false); | |
517 javaVFrame* triggerVF = thread->last_java_vframe(®_map); | |
518 // triggerVF is the frame that triggered its counter | |
519 RFrame* first = new InterpretedRFrame(triggerVF->fr(), thread, m); | |
520 | |
521 if (first->top_method()->code() != NULL) { | |
522 // called obsolete method/nmethod -- no need to recompile | |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
523 if (TraceCompilationPolicy) tty->print_cr(" --> " INTPTR_FORMAT, p2i(first->top_method()->code())); |
0 | 524 } else { |
525 if (TimeCompilationPolicy) accumulated_time()->start(); | |
526 GrowableArray<RFrame*>* stack = new GrowableArray<RFrame*>(50); | |
527 stack->push(first); | |
528 RFrame* top = findTopInlinableFrame(stack); | |
529 if (TimeCompilationPolicy) accumulated_time()->stop(); | |
530 assert(top != NULL, "findTopInlinableFrame returned null"); | |
531 if (TraceCompilationPolicy) top->print(); | |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
532 CompileBroker::compile_method(top->top_method(), InvocationEntryBci, comp_level, |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
533 m, hot_count, comment, thread); |
0 | 534 } |
535 } | |
536 } | |
537 | |
4825
20334ed5ed3c
7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents:
3791
diff
changeset
|
538 void StackWalkCompPolicy::method_back_branch_event(methodHandle m, int bci, JavaThread* thread) { |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
539 const int comp_level = CompLevel_highest_tier; |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
540 const int hot_count = m->backedge_count(); |
0 | 541 const char* comment = "backedge_count"; |
542 | |
12073 | 543 if (is_compilation_enabled() && can_be_osr_compiled(m, comp_level)) { |
6800
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
544 CompileBroker::compile_method(m, bci, comp_level, m, hot_count, comment, thread); |
9191895df19d
7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents:
6725
diff
changeset
|
545 NOT_PRODUCT(trace_osr_completion(m->lookup_osr_nmethod_for(bci, comp_level, true));) |
0 | 546 } |
547 } | |
548 | |
549 RFrame* StackWalkCompPolicy::findTopInlinableFrame(GrowableArray<RFrame*>* stack) { | |
550 // go up the stack until finding a frame that (probably) won't be inlined | |
551 // into its caller | |
552 RFrame* current = stack->at(0); // current choice for stopping | |
553 assert( current && !current->is_compiled(), "" ); | |
554 const char* msg = NULL; | |
555 | |
556 while (1) { | |
557 | |
558 // before going up the stack further, check if doing so would get us into | |
559 // compiled code | |
560 RFrame* next = senderOf(current, stack); | |
561 if( !next ) // No next frame up the stack? | |
562 break; // Then compile with current frame | |
563 | |
564 methodHandle m = current->top_method(); | |
565 methodHandle next_m = next->top_method(); | |
566 | |
567 if (TraceCompilationPolicy && Verbose) { | |
568 tty->print("[caller: "); | |
569 next_m->print_short_name(tty); | |
570 tty->print("] "); | |
571 } | |
572 | |
573 if( !Inline ) { // Inlining turned off | |
574 msg = "Inlining turned off"; | |
575 break; | |
576 } | |
577 if (next_m->is_not_compilable()) { // Did fail to compile this before/ | |
578 msg = "caller not compilable"; | |
579 break; | |
580 } | |
581 if (next->num() > MaxRecompilationSearchLength) { | |
582 // don't go up too high when searching for recompilees | |
583 msg = "don't go up any further: > MaxRecompilationSearchLength"; | |
584 break; | |
585 } | |
586 if (next->distance() > MaxInterpretedSearchLength) { | |
587 // don't go up too high when searching for recompilees | |
588 msg = "don't go up any further: next > MaxInterpretedSearchLength"; | |
589 break; | |
590 } | |
591 // Compiled frame above already decided not to inline; | |
592 // do not recompile him. | |
593 if (next->is_compiled()) { | |
594 msg = "not going up into optimized code"; | |
595 break; | |
596 } | |
597 | |
598 // Interpreted frame above us was already compiled. Do not force | |
599 // a recompile, although if the frame above us runs long enough an | |
600 // OSR might still happen. | |
601 if( current->is_interpreted() && next_m->has_compiled_code() ) { | |
602 msg = "not going up -- already compiled caller"; | |
603 break; | |
604 } | |
605 | |
606 // Compute how frequent this call site is. We have current method 'm'. | |
607 // We know next method 'next_m' is interpreted. Find the call site and | |
608 // check the various invocation counts. | |
609 int invcnt = 0; // Caller counts | |
610 if (ProfileInterpreter) { | |
611 invcnt = next_m->interpreter_invocation_count(); | |
612 } | |
613 int cnt = 0; // Call site counts | |
614 if (ProfileInterpreter && next_m->method_data() != NULL) { | |
615 ResourceMark rm; | |
616 int bci = next->top_vframe()->bci(); | |
617 ProfileData* data = next_m->method_data()->bci_to_data(bci); | |
618 if (data != NULL && data->is_CounterData()) | |
619 cnt = data->as_CounterData()->count(); | |
620 } | |
621 | |
622 // Caller counts / call-site counts; i.e. is this call site | |
623 // a hot call site for method next_m? | |
624 int freq = (invcnt) ? cnt/invcnt : cnt; | |
625 | |
626 // Check size and frequency limits | |
627 if ((msg = shouldInline(m, freq, cnt)) != NULL) { | |
628 break; | |
629 } | |
630 // Check inlining negative tests | |
631 if ((msg = shouldNotInline(m)) != NULL) { | |
632 break; | |
633 } | |
634 | |
635 | |
636 // If the caller method is too big or something then we do not want to | |
637 // compile it just to inline a method | |
10200
d1c9384eecb4
8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false
iignatyev
parents:
10107
diff
changeset
|
638 if (!can_be_compiled(next_m, CompLevel_any)) { |
0 | 639 msg = "caller cannot be compiled"; |
640 break; | |
641 } | |
642 | |
643 if( next_m->name() == vmSymbols::class_initializer_name() ) { | |
644 msg = "do not compile class initializer (OSR ok)"; | |
645 break; | |
646 } | |
647 | |
648 if (TraceCompilationPolicy && Verbose) { | |
649 tty->print("\n\t check caller: "); | |
650 next_m->print_short_name(tty); | |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17906
diff
changeset
|
651 tty->print(" ( interpreted " INTPTR_FORMAT ", size=%d ) ", p2i((address)next_m()), next_m->code_size()); |
0 | 652 } |
653 | |
654 current = next; | |
655 } | |
656 | |
657 assert( !current || !current->is_compiled(), "" ); | |
658 | |
659 if (TraceCompilationPolicy && msg) tty->print("(%s)\n", msg); | |
660 | |
661 return current; | |
662 } | |
663 | |
664 RFrame* StackWalkCompPolicy::senderOf(RFrame* rf, GrowableArray<RFrame*>* stack) { | |
665 RFrame* sender = rf->caller(); | |
666 if (sender && sender->num() == stack->length()) stack->push(sender); | |
667 return sender; | |
668 } | |
669 | |
670 | |
671 const char* StackWalkCompPolicy::shouldInline(methodHandle m, float freq, int cnt) { | |
672 // Allows targeted inlining | |
673 // positive filter: should send be inlined? returns NULL (--> yes) | |
674 // or rejection msg | |
675 int max_size = MaxInlineSize; | |
676 int cost = m->code_size(); | |
677 | |
678 // Check for too many throws (and not too huge) | |
679 if (m->interpreter_throwout_count() > InlineThrowCount && cost < InlineThrowMaxSize ) { | |
680 return NULL; | |
681 } | |
682 | |
683 // bump the max size if the call is frequent | |
684 if ((freq >= InlineFrequencyRatio) || (cnt >= InlineFrequencyCount)) { | |
685 if (TraceFrequencyInlining) { | |
686 tty->print("(Inlined frequent method)\n"); | |
687 m->print(); | |
688 } | |
689 max_size = FreqInlineSize; | |
690 } | |
691 if (cost > max_size) { | |
692 return (_msg = "too big"); | |
693 } | |
694 return NULL; | |
695 } | |
696 | |
697 | |
698 const char* StackWalkCompPolicy::shouldNotInline(methodHandle m) { | |
699 // negative filter: should send NOT be inlined? returns NULL (--> inline) or rejection msg | |
700 if (m->is_abstract()) return (_msg = "abstract method"); | |
701 // note: we allow ik->is_abstract() | |
6940
18fb7da42534
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents:
6800
diff
changeset
|
702 if (!m->method_holder()->is_initialized()) return (_msg = "method holder not initialized"); |
0 | 703 if (m->is_native()) return (_msg = "native method"); |
704 nmethod* m_code = m->code(); | |
1748 | 705 if (m_code != NULL && m_code->code_size() > InlineSmallCode) |
0 | 706 return (_msg = "already compiled into a big method"); |
707 | |
708 // use frequency-based objections only for non-trivial methods | |
709 if (m->code_size() <= MaxTrivialSize) return NULL; | |
710 if (UseInterpreter) { // don't use counts with -Xcomp | |
711 if ((m->code() == NULL) && m->was_never_executed()) return (_msg = "never executed"); | |
712 if (!m->was_executed_more_than(MIN2(MinInliningThreshold, CompileThreshold >> 1))) return (_msg = "executed < MinInliningThreshold times"); | |
713 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4825
diff
changeset
|
714 if (Method::has_unloaded_classes_in_signature(m, JavaThread::current())) return (_msg = "unloaded signature classes"); |
0 | 715 |
716 return NULL; | |
717 } | |
718 | |
719 | |
720 | |
721 #endif // COMPILER2 |