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comparison src/share/vm/c1/c1_Instruction.hpp @ 1899:42a10fc37986

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6991577: add IfOp optimization to C1 Summary: Ifop optimization for c1 Reviewed-by: never, phh, iveresov
author roland
date Fri, 15 Oct 2010 09:38:20 +0200
parents 80c9354976b0
children f95d63e2154a
comparison
equal deleted inserted replaced
1852:94d77a279225 1899:42a10fc37986
441 void set_operand(LIR_Opr operand) { assert(operand != LIR_OprFact::illegalOpr, "operand must exist"); _operand = operand; } 441 void set_operand(LIR_Opr operand) { assert(operand != LIR_OprFact::illegalOpr, "operand must exist"); _operand = operand; }
442 void clear_operand() { _operand = LIR_OprFact::illegalOpr; } 442 void clear_operand() { _operand = LIR_OprFact::illegalOpr; }
443 443
444 // generic 444 // generic
445 virtual Instruction* as_Instruction() { return this; } // to satisfy HASHING1 macro 445 virtual Instruction* as_Instruction() { return this; } // to satisfy HASHING1 macro
446 virtual Phi* as_Phi() { return NULL; } 446 virtual Phi* as_Phi() { return NULL; }
447 virtual Local* as_Local() { return NULL; } 447 virtual Local* as_Local() { return NULL; }
448 virtual Constant* as_Constant() { return NULL; } 448 virtual Constant* as_Constant() { return NULL; }
449 virtual AccessField* as_AccessField() { return NULL; } 449 virtual AccessField* as_AccessField() { return NULL; }
450 virtual LoadField* as_LoadField() { return NULL; } 450 virtual LoadField* as_LoadField() { return NULL; }
451 virtual StoreField* as_StoreField() { return NULL; } 451 virtual StoreField* as_StoreField() { return NULL; }
648 virtual void input_values_do(ValueVisitor* f) { /* no values */ } 648 virtual void input_values_do(ValueVisitor* f) { /* no values */ }
649 649
650 virtual intx hash() const; 650 virtual intx hash() const;
651 virtual bool is_equal(Value v) const; 651 virtual bool is_equal(Value v) const;
652 652
653 virtual BlockBegin* compare(Instruction::Condition condition, Value right, 653
654 BlockBegin* true_sux, BlockBegin* false_sux); 654 enum CompareResult { not_comparable = -1, cond_false, cond_true };
655
656 virtual CompareResult compare(Instruction::Condition condition, Value right) const;
657 BlockBegin* compare(Instruction::Condition cond, Value right,
658 BlockBegin* true_sux, BlockBegin* false_sux) const {
659 switch (compare(cond, right)) {
660 case not_comparable:
661 return NULL;
662 case cond_false:
663 return false_sux;
664 case cond_true:
665 return true_sux;
666 default:
667 ShouldNotReachHere();
668 return NULL;
669 }
670 }
655 }; 671 };
656 672
657 673
658 BASE(AccessField, Instruction) 674 BASE(AccessField, Instruction)
659 private: 675 private: