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comparison src/share/vm/c1/c1_Optimizer.cpp @ 12882:ce0cc25bc5e2

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8026054: New type profiling points: type of return values at calls Summary: x86 interpreter and c1 type profiling for return values at calls Reviewed-by: kvn, twisti
author roland
date Sat, 12 Oct 2013 12:12:59 +0200
parents d13d7aba8c12
children de6a9e811145
comparison
equal deleted inserted replaced
12881:ed2c74787eb5 12882:ce0cc25bc5e2
529 void do_UnsafePutObject(UnsafePutObject* x); 529 void do_UnsafePutObject(UnsafePutObject* x);
530 void do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x); 530 void do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x);
531 void do_UnsafePrefetchRead (UnsafePrefetchRead* x); 531 void do_UnsafePrefetchRead (UnsafePrefetchRead* x);
532 void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x); 532 void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x);
533 void do_ProfileCall (ProfileCall* x); 533 void do_ProfileCall (ProfileCall* x);
534 void do_ProfileReturnType (ProfileReturnType* x);
534 void do_ProfileInvoke (ProfileInvoke* x); 535 void do_ProfileInvoke (ProfileInvoke* x);
535 void do_RuntimeCall (RuntimeCall* x); 536 void do_RuntimeCall (RuntimeCall* x);
536 void do_MemBar (MemBar* x); 537 void do_MemBar (MemBar* x);
537 void do_RangeCheckPredicate(RangeCheckPredicate* x); 538 void do_RangeCheckPredicate(RangeCheckPredicate* x);
538 #ifdef ASSERT 539 #ifdef ASSERT
656 void handle_AccessMonitor (AccessMonitor* x); 657 void handle_AccessMonitor (AccessMonitor* x);
657 void handle_Intrinsic (Intrinsic* x); 658 void handle_Intrinsic (Intrinsic* x);
658 void handle_ExceptionObject (ExceptionObject* x); 659 void handle_ExceptionObject (ExceptionObject* x);
659 void handle_Phi (Phi* x); 660 void handle_Phi (Phi* x);
660 void handle_ProfileCall (ProfileCall* x); 661 void handle_ProfileCall (ProfileCall* x);
662 void handle_ProfileReturnType (ProfileReturnType* x);
661 }; 663 };
662 664
663 665
664 // NEEDS_CLEANUP 666 // NEEDS_CLEANUP
665 // There may be other instructions which need to clear the last 667 // There may be other instructions which need to clear the last
716 void NullCheckVisitor::do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x) {} 718 void NullCheckVisitor::do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x) {}
717 void NullCheckVisitor::do_UnsafePrefetchRead (UnsafePrefetchRead* x) {} 719 void NullCheckVisitor::do_UnsafePrefetchRead (UnsafePrefetchRead* x) {}
718 void NullCheckVisitor::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) {} 720 void NullCheckVisitor::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) {}
719 void NullCheckVisitor::do_ProfileCall (ProfileCall* x) { nce()->clear_last_explicit_null_check(); 721 void NullCheckVisitor::do_ProfileCall (ProfileCall* x) { nce()->clear_last_explicit_null_check();
720 nce()->handle_ProfileCall(x); } 722 nce()->handle_ProfileCall(x); }
723 void NullCheckVisitor::do_ProfileReturnType (ProfileReturnType* x) { nce()->handle_ProfileReturnType(x); }
721 void NullCheckVisitor::do_ProfileInvoke (ProfileInvoke* x) {} 724 void NullCheckVisitor::do_ProfileInvoke (ProfileInvoke* x) {}
722 void NullCheckVisitor::do_RuntimeCall (RuntimeCall* x) {} 725 void NullCheckVisitor::do_RuntimeCall (RuntimeCall* x) {}
723 void NullCheckVisitor::do_MemBar (MemBar* x) {} 726 void NullCheckVisitor::do_MemBar (MemBar* x) {}
724 void NullCheckVisitor::do_RangeCheckPredicate(RangeCheckPredicate* x) {} 727 void NullCheckVisitor::do_RangeCheckPredicate(RangeCheckPredicate* x) {}
725 #ifdef ASSERT 728 #ifdef ASSERT
1140 for (int i = 0; i < x->nb_profiled_args(); i++) { 1143 for (int i = 0; i < x->nb_profiled_args(); i++) {
1141 x->set_arg_needs_null_check(i, !set_contains(x->profiled_arg_at(i))); 1144 x->set_arg_needs_null_check(i, !set_contains(x->profiled_arg_at(i)));
1142 } 1145 }
1143 } 1146 }
1144 1147
1148 void NullCheckEliminator::handle_ProfileReturnType(ProfileReturnType* x) {
1149 x->set_needs_null_check(!set_contains(x->ret()));
1150 }
1151
1145 void Optimizer::eliminate_null_checks() { 1152 void Optimizer::eliminate_null_checks() {
1146 ResourceMark rm; 1153 ResourceMark rm;
1147 1154
1148 NullCheckEliminator nce(this); 1155 NullCheckEliminator nce(this);
1149 1156