+ /// Test whether this operation is permitted to be
+ /// algebraically transformed, aka the 'A' fast-math property.
+ bool hasUnsafeAlgebra() const {
+ return (SubclassOptionalData & FastMathFlags::UnsafeAlgebra) != 0;
+ }
+
+ /// Test whether this operation's arguments and results are to be
+ /// treated as non-NaN, aka the 'N' fast-math property.
+ bool hasNoNaNs() const {
+ return (SubclassOptionalData & FastMathFlags::NoNaNs) != 0;
+ }
+
+ /// Test whether this operation's arguments and results are to be
+ /// treated as NoN-Inf, aka the 'I' fast-math property.
+ bool hasNoInfs() const {
+ return (SubclassOptionalData & FastMathFlags::NoInfs) != 0;
+ }
+
+ /// Test whether this operation can treat the sign of zero
+ /// as insignificant, aka the 'S' fast-math property.
+ bool hasNoSignedZeros() const {
+ return (SubclassOptionalData & FastMathFlags::NoSignedZeros) != 0;
+ }
+
+ /// Test whether this operation is permitted to use
+ /// reciprocal instead of division, aka the 'R' fast-math property.
+ bool hasAllowReciprocal() const {
+ return (SubclassOptionalData & FastMathFlags::AllowReciprocal) != 0;
+ }
+
+ /// Convenience function for getting all the fast-math flags
+ FastMathFlags getFastMathFlags() const {
+ return FastMathFlags(SubclassOptionalData);
+ }
+
+ /// \brief Get the maximum error permitted by this operation in ULPs. An
+ /// accuracy of 0.0 means that the operation should be performed with the
+ /// default precision.
+ float getFPAccuracy() const;
+
+ static inline bool classof(const Instruction *I) {
+ return I->getType()->isFPOrFPVectorTy();
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
+};
+
+
+/// ConcreteOperator - A helper template for defining operators for individual
+/// opcodes.
+template<typename SuperClass, unsigned Opc>
+class ConcreteOperator : public SuperClass {
+public:
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Opc;
+ }
+ static inline bool classof(const ConstantExpr *CE) {
+ return CE->getOpcode() == Opc;
+ }
+ static inline bool classof(const Value *V) {
+ return (isa<Instruction>(V) && classof(cast<Instruction>(V))) ||
+ (isa<ConstantExpr>(V) && classof(cast<ConstantExpr>(V)));
+ }
+};
+
+class AddOperator
+ : public ConcreteOperator<OverflowingBinaryOperator, Instruction::Add> {
+};
+class SubOperator
+ : public ConcreteOperator<OverflowingBinaryOperator, Instruction::Sub> {
+};
+class MulOperator
+ : public ConcreteOperator<OverflowingBinaryOperator, Instruction::Mul> {
+};
+class ShlOperator
+ : public ConcreteOperator<OverflowingBinaryOperator, Instruction::Shl> {
+};
+
+
+class SDivOperator
+ : public ConcreteOperator<PossiblyExactOperator, Instruction::SDiv> {
+};
+class UDivOperator
+ : public ConcreteOperator<PossiblyExactOperator, Instruction::UDiv> {
+};
+class AShrOperator
+ : public ConcreteOperator<PossiblyExactOperator, Instruction::AShr> {
+};
+class LShrOperator
+ : public ConcreteOperator<PossiblyExactOperator, Instruction::LShr> {
+};
+
+
+
+class GEPOperator
+ : public ConcreteOperator<Operator, Instruction::GetElementPtr> {
+ enum {
+ IsInBounds = (1 << 0)
+ };
+
+ friend class GetElementPtrInst;
+ friend class ConstantExpr;
+ void setIsInBounds(bool B) {
+ SubclassOptionalData =
+ (SubclassOptionalData & ~IsInBounds) | (B * IsInBounds);
+ }
+
+public:
+ /// isInBounds - Test whether this is an inbounds GEP, as defined
+ /// by LangRef.html.
+ bool isInBounds() const {
+ return SubclassOptionalData & IsInBounds;
+ }
+