+
+ /// @brief Determine if the Opcode is one of the shift instructions.
+ static inline bool isShift(unsigned Opcode) {
+ return Opcode >= Shl && Opcode <= AShr;
+ }
+
+ /// isLogicalShift - Return true if this is a logical shift left or a logical
+ /// shift right.
+ inline bool isLogicalShift() const {
+ return getOpcode() == Shl || getOpcode() == LShr;
+ }
+
+ /// isArithmeticShift - Return true if this is an arithmetic shift right.
+ inline bool isArithmeticShift() const {
+ return getOpcode() == AShr;
+ }
+
+ /// @brief Determine if the OpCode is one of the CastInst instructions.
+ static inline bool isCast(unsigned OpCode) {
+ return OpCode >= CastOpsBegin && OpCode < CastOpsEnd;
+ }
+
+ //===--------------------------------------------------------------------===//
+ // Metadata manipulation.
+ //===--------------------------------------------------------------------===//
+
+ /// hasMetadata() - Return true if this instruction has any metadata attached
+ /// to it.
+ bool hasMetadata() const {
+ return !DbgLoc.isUnknown() || hasMetadataHashEntry();
+ }
+
+ /// hasMetadataOtherThanDebugLoc - Return true if this instruction has
+ /// metadata attached to it other than a debug location.
+ bool hasMetadataOtherThanDebugLoc() const {
+ return hasMetadataHashEntry();
+ }
+
+ /// getMetadata - Get the metadata of given kind attached to this Instruction.
+ /// If the metadata is not found then return null.
+ MDNode *getMetadata(unsigned KindID) const {
+ if (!hasMetadata()) return 0;
+ return getMetadataImpl(KindID);
+ }
+
+ /// getMetadata - Get the metadata of given kind attached to this Instruction.
+ /// If the metadata is not found then return null.
+ MDNode *getMetadata(StringRef Kind) const {
+ if (!hasMetadata()) return 0;
+ return getMetadataImpl(Kind);
+ }
+
+ /// getAllMetadata - Get all metadata attached to this Instruction. The first
+ /// element of each pair returned is the KindID, the second element is the
+ /// metadata value. This list is returned sorted by the KindID.
+ void getAllMetadata(SmallVectorImpl<std::pair<unsigned, MDNode*> > &MDs)const{
+ if (hasMetadata())
+ getAllMetadataImpl(MDs);
+ }
+
+ /// getAllMetadataOtherThanDebugLoc - This does the same thing as
+ /// getAllMetadata, except that it filters out the debug location.
+ void getAllMetadataOtherThanDebugLoc(SmallVectorImpl<std::pair<unsigned,
+ MDNode*> > &MDs) const {
+ if (hasMetadataOtherThanDebugLoc())
+ getAllMetadataOtherThanDebugLocImpl(MDs);
+ }
+
+ /// setMetadata - Set the metadata of the specified kind to the specified
+ /// node. This updates/replaces metadata if already present, or removes it if
+ /// Node is null.
+ void setMetadata(unsigned KindID, MDNode *Node);
+ void setMetadata(StringRef Kind, MDNode *Node);
+
+ /// setDebugLoc - Set the debug location information for this instruction.
+ void setDebugLoc(const DebugLoc &Loc) { DbgLoc = Loc; }
+
+ /// getDebugLoc - Return the debug location for this node as a DebugLoc.
+ const DebugLoc &getDebugLoc() const { return DbgLoc; }
+
+ /// Set or clear the unsafe-algebra flag on this instruction, which must be an
+ /// operator which supports this flag. See LangRef.html for the meaning of
+ /// this flag.
+ void setHasUnsafeAlgebra(bool B);
+
+ /// Set or clear the no-nans flag on this instruction, which must be an
+ /// operator which supports this flag. See LangRef.html for the meaning of
+ /// this flag.
+ void setHasNoNaNs(bool B);
+
+ /// Set or clear the no-infs flag on this instruction, which must be an
+ /// operator which supports this flag. See LangRef.html for the meaning of
+ /// this flag.
+ void setHasNoInfs(bool B);
+
+ /// Set or clear the no-signed-zeros flag on this instruction, which must be
+ /// an operator which supports this flag. See LangRef.html for the meaning of
+ /// this flag.
+ void setHasNoSignedZeros(bool B);
+
+ /// Set or clear the allow-reciprocal flag on this instruction, which must be
+ /// an operator which supports this flag. See LangRef.html for the meaning of
+ /// this flag.
+ void setHasAllowReciprocal(bool B);
+
+ /// Convenience function for setting all the fast-math flags on this
+ /// instruction, which must be an operator which supports these flags. See
+ /// LangRef.html for the meaning of these flats.
+ void setFastMathFlags(FastMathFlags FMF);
+
+ /// Determine whether the unsafe-algebra flag is set.
+ bool hasUnsafeAlgebra() const;
+
+ /// Determine whether the no-NaNs flag is set.
+ bool hasNoNaNs() const;
+
+ /// Determine whether the no-infs flag is set.
+ bool hasNoInfs() const;
+
+ /// Determine whether the no-signed-zeros flag is set.
+ bool hasNoSignedZeros() const;
+
+ /// Determine whether the allow-reciprocal flag is set.
+ bool hasAllowReciprocal() const;
+
+ /// Convenience function for getting all the fast-math flags, which must be an
+ /// operator which supports these flags. See LangRef.html for the meaning of
+ /// these flats.
+ FastMathFlags getFastMathFlags() const;
+
+ /// Copy I's fast-math flags
+ void copyFastMathFlags(const Instruction *I);
+
+private:
+ /// hasMetadataHashEntry - Return true if we have an entry in the on-the-side
+ /// metadata hash.
+ bool hasMetadataHashEntry() const {
+ return (getSubclassDataFromValue() & HasMetadataBit) != 0;