//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
class UnaryInstruction : public Instruction {
Use Op;
+
+ // avoiding warning: 'this' : used in base member initializer list
+ UnaryInstruction* this_() { return this; }
protected:
UnaryInstruction(const Type *Ty, unsigned iType, Value *V, Instruction *IB =0)
- : Instruction(Ty, iType, &Op, 1, IB), Op(V, this) {
+ : Instruction(Ty, iType, &Op, 1, IB), Op(V, this_()) {
}
UnaryInstruction(const Type *Ty, unsigned iType, Value *V, BasicBlock *IAE)
- : Instruction(Ty, iType, &Op, 1, IAE), Op(V, this) {
+ : Instruction(Ty, iType, &Op, 1, IAE), Op(V, this_()) {
}
public:
// Out of line virtual method, so the vtable, etc has a home.
Op = Val;
}
unsigned getNumOperands() const { return 1; }
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const UnaryInstruction *) { return true; }
+ static inline bool classof(const Instruction *I) {
+ return I->getOpcode() == Instruction::Malloc ||
+ I->getOpcode() == Instruction::Alloca ||
+ I->getOpcode() == Instruction::Free ||
+ I->getOpcode() == Instruction::Load ||
+ I->getOpcode() == Instruction::VAArg ||
+ (I->getOpcode() >= CastOpsBegin && I->getOpcode() < CastOpsEnd);
+ }
+ static inline bool classof(const Value *V) {
+ return isa<Instruction>(V) && classof(cast<Instruction>(V));
+ }
};
//===----------------------------------------------------------------------===//
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
);
+ /// @brief Check whether it is valid to call getCastOpcode for these types.
+ static bool isCastable(
+ const Type *SrcTy, ///< The Type from which the value should be cast.
+ const Type *DestTy ///< The Type to which the value should be cast.
+ );
+
/// Returns the opcode necessary to cast Val into Ty using usual casting
- /// rules.
+ /// rules.
/// @brief Infer the opcode for cast operand and type
static Instruction::CastOps getCastOpcode(
const Value *Val, ///< The value to cast
/// A lossless cast is one that does not alter the basic value. It implies
/// a no-op cast but is more stringent, preventing things like int->float,
- /// long->double, int->ptr, or packed->anything.
+ /// long->double, int->ptr, or vector->anything.
/// @returns true iff the cast is lossless.
/// @brief Determine if this is a lossless cast.
bool isLosslessCast() const;
Value *S2, const std::string &Name,
BasicBlock *InsertAtEnd);
- /// @brief Implement superclass method.
- virtual CmpInst *clone() const;
-
/// @brief Get the opcode casted to the right type
OtherOps getOpcode() const {
return static_cast<OtherOps>(Instruction::getOpcode());