Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/library_call.cpp
src/share/vm/opto/library_call.cpp
- changeset 7789
- eb8b5cc64669
- parent 7341
- e7b3d177adda
- child 7790
- d9593687713d
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replaced
| 7788:c97ba20ad404 | 7789:eb8b5cc64669 |
|---|---|
| 29 #include "compiler/compileLog.hpp" | 29 #include "compiler/compileLog.hpp" |
| 30 #include "oops/objArrayKlass.hpp" | 30 #include "oops/objArrayKlass.hpp" |
| 31 #include "opto/addnode.hpp" | 31 #include "opto/addnode.hpp" |
| 32 #include "opto/callGenerator.hpp" | 32 #include "opto/callGenerator.hpp" |
| 33 #include "opto/cfgnode.hpp" | 33 #include "opto/cfgnode.hpp" |
| 34 #include "opto/connode.hpp" | |
| 34 #include "opto/idealKit.hpp" | 35 #include "opto/idealKit.hpp" |
| 35 #include "opto/mathexactnode.hpp" | 36 #include "opto/mathexactnode.hpp" |
| 36 #include "opto/mulnode.hpp" | 37 #include "opto/mulnode.hpp" |
| 37 #include "opto/parse.hpp" | 38 #include "opto/parse.hpp" |
| 38 #include "opto/runtime.hpp" | 39 #include "opto/runtime.hpp" |
| 321 bool inline_encodeISOArray(); | 322 bool inline_encodeISOArray(); |
| 322 bool inline_updateCRC32(); | 323 bool inline_updateCRC32(); |
| 323 bool inline_updateBytesCRC32(); | 324 bool inline_updateBytesCRC32(); |
| 324 bool inline_updateByteBufferCRC32(); | 325 bool inline_updateByteBufferCRC32(); |
| 325 bool inline_multiplyToLen(); | 326 bool inline_multiplyToLen(); |
| 327 | |
| 328 bool inline_profileBoolean(); | |
| 326 }; | 329 }; |
| 327 | 330 |
| 328 | 331 |
| 329 //---------------------------make_vm_intrinsic---------------------------- | 332 //---------------------------make_vm_intrinsic---------------------------- |
| 330 CallGenerator* Compile::make_vm_intrinsic(ciMethod* m, bool is_virtual) { | 333 CallGenerator* Compile::make_vm_intrinsic(ciMethod* m, bool is_virtual) { |
| 931 return inline_updateCRC32(); | 934 return inline_updateCRC32(); |
| 932 case vmIntrinsics::_updateBytesCRC32: | 935 case vmIntrinsics::_updateBytesCRC32: |
| 933 return inline_updateBytesCRC32(); | 936 return inline_updateBytesCRC32(); |
| 934 case vmIntrinsics::_updateByteBufferCRC32: | 937 case vmIntrinsics::_updateByteBufferCRC32: |
| 935 return inline_updateByteBufferCRC32(); | 938 return inline_updateByteBufferCRC32(); |
| 939 | |
| 940 case vmIntrinsics::_profileBoolean: | |
| 941 return inline_profileBoolean(); | |
| 936 | 942 |
| 937 default: | 943 default: |
| 938 // If you get here, it may be that someone has added a new intrinsic | 944 // If you get here, it may be that someone has added a new intrinsic |
| 939 // to the list in vmSymbols.hpp without implementing it here. | 945 // to the list in vmSymbols.hpp without implementing it here. |
| 940 #ifndef PRODUCT | 946 #ifndef PRODUCT |
| 6542 Node* bool_instof = _gvn.transform(new (C) BoolNode(cmp_instof, BoolTest::ne)); | 6548 Node* bool_instof = _gvn.transform(new (C) BoolNode(cmp_instof, BoolTest::ne)); |
| 6543 Node* instof_false = generate_guard(bool_instof, NULL, PROB_MIN); | 6549 Node* instof_false = generate_guard(bool_instof, NULL, PROB_MIN); |
| 6544 | 6550 |
| 6545 return instof_false; // even if it is NULL | 6551 return instof_false; // even if it is NULL |
| 6546 } | 6552 } |
| 6553 | |
| 6554 bool LibraryCallKit::inline_profileBoolean() { | |
| 6555 Node* counts = argument(1); | |
| 6556 const TypeAryPtr* ary = NULL; | |
| 6557 ciArray* aobj = NULL; | |
| 6558 if (counts->is_Con() | |
| 6559 && (ary = counts->bottom_type()->isa_aryptr()) != NULL | |
| 6560 && (aobj = ary->const_oop()->as_array()) != NULL | |
| 6561 && (aobj->length() == 2)) { | |
| 6562 // Profile is int[2] where [0] and [1] correspond to false and true value occurrences respectively. | |
| 6563 jint false_cnt = aobj->element_value(0).as_int(); | |
| 6564 jint true_cnt = aobj->element_value(1).as_int(); | |
| 6565 | |
| 6566 method()->set_injected_profile(true); | |
| 6567 | |
| 6568 if (C->log() != NULL) { | |
| 6569 C->log()->elem("observe source='profileBoolean' false='%d' true='%d'", | |
| 6570 false_cnt, true_cnt); | |
| 6571 } | |
| 6572 | |
| 6573 if (false_cnt + true_cnt == 0) { | |
| 6574 // According to profile, never executed. | |
| 6575 uncommon_trap_exact(Deoptimization::Reason_intrinsic, | |
| 6576 Deoptimization::Action_reinterpret); | |
| 6577 return true; | |
| 6578 } | |
| 6579 // Stop profiling. | |
| 6580 // MethodHandleImpl::profileBoolean() has profiling logic in it's bytecode. | |
| 6581 // By replacing method's body with profile data (represented as ProfileBooleanNode | |
| 6582 // on IR level) we effectively disable profiling. | |
| 6583 // It enables full speed execution once optimized code is generated. | |
| 6584 Node* profile = _gvn.transform(new (C) ProfileBooleanNode(argument(0), false_cnt, true_cnt)); | |
| 6585 C->record_for_igvn(profile); | |
| 6586 set_result(profile); | |
| 6587 return true; | |
| 6588 } else { | |
| 6589 // Continue profiling. | |
| 6590 // Profile data isn't available at the moment. So, execute method's bytecode version. | |
| 6591 // Usually, when GWT LambdaForms are profiled it means that a stand-alone nmethod | |
| 6592 // is compiled and counters aren't available since corresponding MethodHandle | |
| 6593 // isn't a compile-time constant. | |
| 6594 return false; | |
| 6595 } | |
| 6596 } |
