434 // field can be registered by the G1 pre-barrier code. The intrinsified
435 // version of Reference::get also adds a memory barrier to prevent
436 // commoning reads from the referent field across safepoint since GC
437 // can change the referent field's value. See Compile::Compile()
438 // in src/share/vm/opto/compile.cpp or
439 // GraphBuilder::GraphBuilder() in src/share/vm/c1/c1_GraphBuilder.cpp
440 // for more details.
441 ccstr disable_intr = NULL;
442 if ((DisableIntrinsic[0] != '\0' && strstr(DisableIntrinsic, vmIntrinsics::name_at(id)) != NULL) ||
443 (!compilation_context.is_null() &&
444 CompilerOracle::has_option_value(compilation_context, "DisableIntrinsic", disable_intr) &&
445 strstr(disable_intr, vmIntrinsics::name_at(id)) != NULL)
446 ) {
447 return true;
448 }
449
450 // -XX:-InlineNatives disables nearly all intrinsics except the ones listed in
451 // the following switch statement.
452 if (!InlineNatives) {
453 switch (id) {
454 case vmIntrinsics::_indexOf:
455 case vmIntrinsics::_compareTo:
456 case vmIntrinsics::_equals:
457 case vmIntrinsics::_equalsC:
458 case vmIntrinsics::_getAndAddInt:
459 case vmIntrinsics::_getAndAddLong:
460 case vmIntrinsics::_getAndSetInt:
461 case vmIntrinsics::_getAndSetLong:
462 case vmIntrinsics::_getAndSetObject:
463 case vmIntrinsics::_loadFence:
464 case vmIntrinsics::_storeFence:
465 case vmIntrinsics::_fullFence:
466 case vmIntrinsics::_Reference_get:
467 break;
468 default:
469 return true;
470 }
471 }
472
473 switch (id) {
474 case vmIntrinsics::_isInstance:
475 case vmIntrinsics::_isAssignableFrom:
476 case vmIntrinsics::_getModifiers:
477 case vmIntrinsics::_isInterface:
478 case vmIntrinsics::_isArray:
479 case vmIntrinsics::_isPrimitive:
480 case vmIntrinsics::_getSuperclass:
481 case vmIntrinsics::_Class_cast:
482 case vmIntrinsics::_getLength:
483 case vmIntrinsics::_newArray:
484 case vmIntrinsics::_getClass:
485 if (!InlineClassNatives) return true;
628 case vmIntrinsics::_updateBytesAdler32:
629 case vmIntrinsics::_updateByteBufferAdler32:
630 if (!UseAdler32Intrinsics) return true;
631 break;
632 case vmIntrinsics::_copyMemory:
633 if (!InlineArrayCopy || !InlineUnsafeOps) return true;
634 break;
635 #ifdef COMPILER1
636 case vmIntrinsics::_checkIndex:
637 if (!InlineNIOCheckIndex) return true;
638 break;
639 #endif // COMPILER1
640 #ifdef COMPILER2
641 case vmIntrinsics::_clone:
642 case vmIntrinsics::_copyOf:
643 case vmIntrinsics::_copyOfRange:
644 // These intrinsics use both the objectcopy and the arraycopy
645 // intrinsic mechanism.
646 if (!InlineObjectCopy || !InlineArrayCopy) return true;
647 break;
648 case vmIntrinsics::_compareTo:
649 if (!SpecialStringCompareTo) return true;
650 break;
651 case vmIntrinsics::_indexOf:
652 if (!SpecialStringIndexOf) return true;
653 break;
654 case vmIntrinsics::_equals:
655 if (!SpecialStringEquals) return true;
656 break;
657 case vmIntrinsics::_equalsC:
658 if (!SpecialArraysEquals) return true;
659 break;
660 case vmIntrinsics::_encodeISOArray:
661 if (!SpecialEncodeISOArray) return true;
662 break;
663 case vmIntrinsics::_getCallerClass:
664 if (!InlineReflectionGetCallerClass) return true;
665 break;
666 case vmIntrinsics::_multiplyToLen:
667 if (!UseMultiplyToLenIntrinsic) return true;
668 break;
669 case vmIntrinsics::_squareToLen:
670 if (!UseSquareToLenIntrinsic) return true;
671 break;
672 case vmIntrinsics::_mulAdd:
673 if (!UseMulAddIntrinsic) return true;
674 break;
675 case vmIntrinsics::_montgomeryMultiply:
676 if (!UseMontgomeryMultiplyIntrinsic) return true;
677 break;
678 case vmIntrinsics::_montgomerySquare:
679 if (!UseMontgomerySquareIntrinsic) return true;
680 break;
681 case vmIntrinsics::_addExactI:
682 case vmIntrinsics::_addExactL:
683 case vmIntrinsics::_decrementExactI:
684 case vmIntrinsics::_decrementExactL:
685 case vmIntrinsics::_incrementExactI:
686 case vmIntrinsics::_incrementExactL:
687 case vmIntrinsics::_multiplyExactI:
688 case vmIntrinsics::_multiplyExactL:
689 case vmIntrinsics::_negateExactI:
690 case vmIntrinsics::_negateExactL:
691 case vmIntrinsics::_subtractExactI:
692 case vmIntrinsics::_subtractExactL:
693 if (!UseMathExactIntrinsics || !InlineMathNatives) return true;
694 break;
695 #endif // COMPILER2
696 default:
697 return false;
698 }
699
700 return false;
701 }
702
703 #define VM_INTRINSIC_INITIALIZE(id, klass, name, sig, flags) #id "\0"
704 static const char* vm_intrinsic_name_bodies =
705 VM_INTRINSICS_DO(VM_INTRINSIC_INITIALIZE,
706 VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE);
707
708 static const char* vm_intrinsic_name_table[vmIntrinsics::ID_LIMIT];
709
710 const char* vmIntrinsics::name_at(vmIntrinsics::ID id) {
711 const char** nt = &vm_intrinsic_name_table[0];
712 if (nt[_none] == NULL) {
713 char* string = (char*) &vm_intrinsic_name_bodies[0];
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434 // field can be registered by the G1 pre-barrier code. The intrinsified
435 // version of Reference::get also adds a memory barrier to prevent
436 // commoning reads from the referent field across safepoint since GC
437 // can change the referent field's value. See Compile::Compile()
438 // in src/share/vm/opto/compile.cpp or
439 // GraphBuilder::GraphBuilder() in src/share/vm/c1/c1_GraphBuilder.cpp
440 // for more details.
441 ccstr disable_intr = NULL;
442 if ((DisableIntrinsic[0] != '\0' && strstr(DisableIntrinsic, vmIntrinsics::name_at(id)) != NULL) ||
443 (!compilation_context.is_null() &&
444 CompilerOracle::has_option_value(compilation_context, "DisableIntrinsic", disable_intr) &&
445 strstr(disable_intr, vmIntrinsics::name_at(id)) != NULL)
446 ) {
447 return true;
448 }
449
450 // -XX:-InlineNatives disables nearly all intrinsics except the ones listed in
451 // the following switch statement.
452 if (!InlineNatives) {
453 switch (id) {
454 case vmIntrinsics::_indexOfL:
455 case vmIntrinsics::_indexOfU:
456 case vmIntrinsics::_indexOfUL:
457 case vmIntrinsics::_indexOfIL:
458 case vmIntrinsics::_indexOfIU:
459 case vmIntrinsics::_indexOfIUL:
460 case vmIntrinsics::_indexOfU_char:
461 case vmIntrinsics::_compareToL:
462 case vmIntrinsics::_compareToU:
463 case vmIntrinsics::_compareToLU:
464 case vmIntrinsics::_compareToUL:
465 case vmIntrinsics::_equalsL:
466 case vmIntrinsics::_equalsU:
467 case vmIntrinsics::_equalsC:
468 case vmIntrinsics::_getCharStringU:
469 case vmIntrinsics::_putCharStringU:
470 case vmIntrinsics::_compressStringC:
471 case vmIntrinsics::_compressStringB:
472 case vmIntrinsics::_inflateStringC:
473 case vmIntrinsics::_inflateStringB:
474 case vmIntrinsics::_getAndAddInt:
475 case vmIntrinsics::_getAndAddLong:
476 case vmIntrinsics::_getAndSetInt:
477 case vmIntrinsics::_getAndSetLong:
478 case vmIntrinsics::_getAndSetObject:
479 case vmIntrinsics::_loadFence:
480 case vmIntrinsics::_storeFence:
481 case vmIntrinsics::_fullFence:
482 case vmIntrinsics::_hasNegatives:
483 case vmIntrinsics::_Reference_get:
484 break;
485 default:
486 return true;
487 }
488 }
489
490 switch (id) {
491 case vmIntrinsics::_isInstance:
492 case vmIntrinsics::_isAssignableFrom:
493 case vmIntrinsics::_getModifiers:
494 case vmIntrinsics::_isInterface:
495 case vmIntrinsics::_isArray:
496 case vmIntrinsics::_isPrimitive:
497 case vmIntrinsics::_getSuperclass:
498 case vmIntrinsics::_Class_cast:
499 case vmIntrinsics::_getLength:
500 case vmIntrinsics::_newArray:
501 case vmIntrinsics::_getClass:
502 if (!InlineClassNatives) return true;
645 case vmIntrinsics::_updateBytesAdler32:
646 case vmIntrinsics::_updateByteBufferAdler32:
647 if (!UseAdler32Intrinsics) return true;
648 break;
649 case vmIntrinsics::_copyMemory:
650 if (!InlineArrayCopy || !InlineUnsafeOps) return true;
651 break;
652 #ifdef COMPILER1
653 case vmIntrinsics::_checkIndex:
654 if (!InlineNIOCheckIndex) return true;
655 break;
656 #endif // COMPILER1
657 #ifdef COMPILER2
658 case vmIntrinsics::_clone:
659 case vmIntrinsics::_copyOf:
660 case vmIntrinsics::_copyOfRange:
661 // These intrinsics use both the objectcopy and the arraycopy
662 // intrinsic mechanism.
663 if (!InlineObjectCopy || !InlineArrayCopy) return true;
664 break;
665 case vmIntrinsics::_compareToL:
666 case vmIntrinsics::_compareToU:
667 case vmIntrinsics::_compareToLU:
668 case vmIntrinsics::_compareToUL:
669 if (!SpecialStringCompareTo) return true;
670 break;
671 case vmIntrinsics::_indexOfL:
672 case vmIntrinsics::_indexOfU:
673 case vmIntrinsics::_indexOfUL:
674 case vmIntrinsics::_indexOfIL:
675 case vmIntrinsics::_indexOfIU:
676 case vmIntrinsics::_indexOfIUL:
677 case vmIntrinsics::_indexOfU_char:
678 if (!SpecialStringIndexOf) return true;
679 break;
680 case vmIntrinsics::_equalsL:
681 case vmIntrinsics::_equalsU:
682 if (!SpecialStringEquals) return true;
683 break;
684 case vmIntrinsics::_equalsB:
685 case vmIntrinsics::_equalsC:
686 if (!SpecialArraysEquals) return true;
687 break;
688 case vmIntrinsics::_encodeISOArray:
689 case vmIntrinsics::_encodeByteISOArray:
690 if (!SpecialEncodeISOArray) return true;
691 break;
692 case vmIntrinsics::_getCallerClass:
693 if (!InlineReflectionGetCallerClass) return true;
694 break;
695 case vmIntrinsics::_multiplyToLen:
696 if (!UseMultiplyToLenIntrinsic) return true;
697 break;
698 case vmIntrinsics::_squareToLen:
699 if (!UseSquareToLenIntrinsic) return true;
700 break;
701 case vmIntrinsics::_mulAdd:
702 if (!UseMulAddIntrinsic) return true;
703 break;
704 case vmIntrinsics::_montgomeryMultiply:
705 if (!UseMontgomeryMultiplyIntrinsic) return true;
706 break;
707 case vmIntrinsics::_montgomerySquare:
708 if (!UseMontgomerySquareIntrinsic) return true;
709 break;
710 case vmIntrinsics::_addExactI:
711 case vmIntrinsics::_addExactL:
712 case vmIntrinsics::_decrementExactI:
713 case vmIntrinsics::_decrementExactL:
714 case vmIntrinsics::_incrementExactI:
715 case vmIntrinsics::_incrementExactL:
716 case vmIntrinsics::_multiplyExactI:
717 case vmIntrinsics::_multiplyExactL:
718 case vmIntrinsics::_negateExactI:
719 case vmIntrinsics::_negateExactL:
720 case vmIntrinsics::_subtractExactI:
721 case vmIntrinsics::_subtractExactL:
722 if (!UseMathExactIntrinsics || !InlineMathNatives) return true;
723 break;
724 case vmIntrinsics::_getCharStringU:
725 case vmIntrinsics::_putCharStringU:
726 // Until JDK-8138651 is fixed, we have to rely on a special flag to
727 // disable these intrinsics for experiments.
728 if (!StringCharIntrinsics) return true;
729 break;
730 #endif // COMPILER2
731 default:
732 return false;
733 }
734
735 return false;
736 }
737
738 #define VM_INTRINSIC_INITIALIZE(id, klass, name, sig, flags) #id "\0"
739 static const char* vm_intrinsic_name_bodies =
740 VM_INTRINSICS_DO(VM_INTRINSIC_INITIALIZE,
741 VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_SYMBOL_IGNORE, VM_ALIAS_IGNORE);
742
743 static const char* vm_intrinsic_name_table[vmIntrinsics::ID_LIMIT];
744
745 const char* vmIntrinsics::name_at(vmIntrinsics::ID id) {
746 const char** nt = &vm_intrinsic_name_table[0];
747 if (nt[_none] == NULL) {
748 char* string = (char*) &vm_intrinsic_name_bodies[0];
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