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comparison src/share/vm/code/nmethod.cpp @ 14704:b51e29501f30

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Merged with jdk9/dev/hotspot changeset 9486a41de3b7
author twisti
date Tue, 18 Mar 2014 20:19:10 -0700
parents b6aa8c4972aa 3c6ae9109a86
children 92aa6797d639
comparison
equal deleted inserted replaced
14647:8f483e200405 14704:b51e29501f30
37 #include "oops/methodData.hpp" 37 #include "oops/methodData.hpp"
38 #include "prims/jvmtiRedefineClassesTrace.hpp" 38 #include "prims/jvmtiRedefineClassesTrace.hpp"
39 #include "prims/jvmtiImpl.hpp" 39 #include "prims/jvmtiImpl.hpp"
40 #include "runtime/sharedRuntime.hpp" 40 #include "runtime/sharedRuntime.hpp"
41 #include "runtime/sweeper.hpp" 41 #include "runtime/sweeper.hpp"
42 #include "utilities/resourceHash.hpp"
42 #include "utilities/dtrace.hpp" 43 #include "utilities/dtrace.hpp"
43 #include "utilities/events.hpp" 44 #include "utilities/events.hpp"
44 #include "utilities/xmlstream.hpp" 45 #include "utilities/xmlstream.hpp"
45 #ifdef SHARK 46 #ifdef SHARK
46 #include "shark/sharkCompiler.hpp" 47 #include "shark/sharkCompiler.hpp"
2266 ResourceMark rm; 2267 ResourceMark rm;
2267 2268
2268 // Turn off dependency tracing while actually testing dependencies. 2269 // Turn off dependency tracing while actually testing dependencies.
2269 NOT_PRODUCT( FlagSetting fs(TraceDependencies, false) ); 2270 NOT_PRODUCT( FlagSetting fs(TraceDependencies, false) );
2270 2271
2271 GenericHashtable<DependencySignature, ResourceObj>* table = new GenericHashtable<DependencySignature, ResourceObj>(11027); 2272 typedef ResourceHashtable<DependencySignature, int, &DependencySignature::hash,
2273 &DependencySignature::equals, 11027> DepTable;
2274
2275 DepTable* table = new DepTable();
2276
2272 // Iterate over live nmethods and check dependencies of all nmethods that are not 2277 // Iterate over live nmethods and check dependencies of all nmethods that are not
2273 // marked for deoptimization. A particular dependency is only checked once. 2278 // marked for deoptimization. A particular dependency is only checked once.
2274 for(nmethod* nm = CodeCache::alive_nmethod(CodeCache::first()); nm != NULL; nm = CodeCache::alive_nmethod(CodeCache::next(nm))) { 2279 for(nmethod* nm = CodeCache::alive_nmethod(CodeCache::first()); nm != NULL; nm = CodeCache::alive_nmethod(CodeCache::next(nm))) {
2275 if (!nm->is_marked_for_deoptimization()) { 2280 if (!nm->is_marked_for_deoptimization()) {
2276 for (Dependencies::DepStream deps(nm); deps.next(); ) { 2281 for (Dependencies::DepStream deps(nm); deps.next(); ) {
2277 // Construct abstraction of a dependency. 2282 // Construct abstraction of a dependency.
2278 DependencySignature* current_sig = new DependencySignature(deps); 2283 DependencySignature* current_sig = new DependencySignature(deps);
2279 // Determine if 'deps' is already checked. table->add() returns 2284
2280 // 'true' if the dependency was added (i.e., was not in the hashtable). 2285 // Determine if dependency is already checked. table->put(...) returns
2281 if (table->add(current_sig)) { 2286 // 'true' if the dependency is added (i.e., was not in the hashtable).
2287 if (table->put(*current_sig, 1)) {
2282 if (deps.check_dependency() != NULL) { 2288 if (deps.check_dependency() != NULL) {
2283 // Dependency checking failed. Print out information about the failed 2289 // Dependency checking failed. Print out information about the failed
2284 // dependency and finally fail with an assert. We can fail here, since 2290 // dependency and finally fail with an assert. We can fail here, since
2285 // dependency checking is never done in a product build. 2291 // dependency checking is never done in a product build.
2286 changes.print(); 2292 changes.print();