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For PR1117:

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Expose the previously hidden checkCast function as CastInst::castIsValid.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33282 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2007-01-17 02:46:11 +00:00
parent 889cf0ec51
commit 0a11af1f73
2 changed files with 35 additions and 29 deletions
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6
include/llvm/InstrTypes.h
View File

@ -459,6 +459,12 @@ public:
/// @brief Return the destination type, as a convenience
const Type* getDestTy() const { return getType(); }
/// This method can be used to determine if a cast from S to DstTy using
/// Opcode op is valid or not.
/// @returns true iff the proposed cast is valid.
/// @brief Determine if a cast is valid without creating one.
static bool castIsValid(Instruction::CastOps op, Value *S, const Type *DstTy);
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const CastInst *) { return true; }
static inline bool classof(const Instruction *I) {

58
lib/VMCore/Instructions.cpp
View File

@ -1603,9 +1603,9 @@ CastInst *CastInst::createFPCast(Value *C, const Type *Ty,
// Provide a way to get a "cast" where the cast opcode is inferred from the
// types and size of the operand. This, basically, is a parallel of the
// logic in the checkCast function below. This axiom should hold:
// checkCast( getCastOpcode(Val, Ty), Val, Ty)
// should not assert in checkCast. In other words, this produces a "correct"
// logic in the castIsValid function below. This axiom should hold:
// castIsValid( getCastOpcode(Val, Ty), Val, Ty)
// should not assert in castIsValid. In other words, this produces a "correct"
// casting opcode for the arguments passed to it.
Instruction::CastOps
CastInst::getCastOpcode(
@ -1699,8 +1699,8 @@ CastInst::getCastOpcode(
/// could be broken out into the separate constructors but it is useful to have
/// it in one place and to eliminate the redundant code for getting the sizes
/// of the types involved.
static bool
checkCast(Instruction::CastOps op, Value *S, const Type *DstTy) {
bool
CastInst::castIsValid(Instruction::CastOps op, Value *S, const Type *DstTy) {
// Check for type sanity on the arguments
const Type *SrcTy = S->getType();
@ -1754,144 +1754,144 @@ checkCast(Instruction::CastOps op, Value *S, const Type *DstTy) {
TruncInst::TruncInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, Trunc, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal Trunc");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal Trunc");
}
TruncInst::TruncInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, Trunc, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal Trunc");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal Trunc");
}
ZExtInst::ZExtInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, ZExt, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal ZExt");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal ZExt");
}
ZExtInst::ZExtInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, ZExt, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal ZExt");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal ZExt");
}
SExtInst::SExtInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, SExt, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal SExt");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal SExt");
}
SExtInst::SExtInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, SExt, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal SExt");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal SExt");
}
FPTruncInst::FPTruncInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, FPTrunc, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal FPTrunc");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal FPTrunc");
}
FPTruncInst::FPTruncInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, FPTrunc, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal FPTrunc");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal FPTrunc");
}
FPExtInst::FPExtInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, FPExt, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal FPExt");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal FPExt");
}
FPExtInst::FPExtInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, FPExt, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal FPExt");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal FPExt");
}
UIToFPInst::UIToFPInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, UIToFP, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal UIToFP");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal UIToFP");
}
UIToFPInst::UIToFPInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, UIToFP, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal UIToFP");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal UIToFP");
}
SIToFPInst::SIToFPInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, SIToFP, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal SIToFP");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal SIToFP");
}
SIToFPInst::SIToFPInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, SIToFP, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal SIToFP");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal SIToFP");
}
FPToUIInst::FPToUIInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, FPToUI, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal FPToUI");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal FPToUI");
}
FPToUIInst::FPToUIInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, FPToUI, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal FPToUI");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal FPToUI");
}
FPToSIInst::FPToSIInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, FPToSI, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal FPToSI");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal FPToSI");
}
FPToSIInst::FPToSIInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, FPToSI, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal FPToSI");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal FPToSI");
}
PtrToIntInst::PtrToIntInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, PtrToInt, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal PtrToInt");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal PtrToInt");
}
PtrToIntInst::PtrToIntInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, PtrToInt, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal PtrToInt");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal PtrToInt");
}
IntToPtrInst::IntToPtrInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, IntToPtr, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal IntToPtr");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal IntToPtr");
}
IntToPtrInst::IntToPtrInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, IntToPtr, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal IntToPtr");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal IntToPtr");
}
BitCastInst::BitCastInst(
Value *S, const Type *Ty, const std::string &Name, Instruction *InsertBefore
) : CastInst(Ty, BitCast, S, Name, InsertBefore) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal BitCast");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal BitCast");
}
BitCastInst::BitCastInst(
Value *S, const Type *Ty, const std::string &Name, BasicBlock *InsertAtEnd
) : CastInst(Ty, BitCast, S, Name, InsertAtEnd) {
assert(checkCast(getOpcode(), S, Ty) && "Illegal BitCast");
assert(castIsValid(getOpcode(), S, Ty) && "Illegal BitCast");
}
//===----------------------------------------------------------------------===//