Add ConstantExpr::get(Sign|Zero)Extend methods
llvm-svn: 12648
This commit is contained in:
parent
dfcf8e34cf
commit
dd28474610
|
@ -544,6 +544,8 @@ public:
|
|||
/// Cast constant expr
|
||||
///
|
||||
static Constant *getCast(Constant *C, const Type *Ty);
|
||||
static Constant *getSignExtend(Constant *C, const Type *Ty);
|
||||
static Constant *getZeroExtend(Constant *C, const Type *Ty);
|
||||
|
||||
/// Select constant expr
|
||||
///
|
||||
|
|
|
@ -1131,6 +1131,22 @@ Constant *ConstantExpr::getCast(Constant *C, const Type *Ty) {
|
|||
return ExprConstants.getOrCreate(Ty, Key);
|
||||
}
|
||||
|
||||
Constant *ConstantExpr::getSignExtend(Constant *C, const Type *Ty) {
|
||||
assert(C->getType()->isInteger() && Ty->isInteger() &&
|
||||
C->getType()->getPrimitiveSize() <= Ty->getPrimitiveSize() &&
|
||||
"This is an illegal sign extension!");
|
||||
C = ConstantExpr::getCast(C, C->getType()->getSignedVersion());
|
||||
return ConstantExpr::getCast(C, Ty);
|
||||
}
|
||||
|
||||
Constant *ConstantExpr::getZeroExtend(Constant *C, const Type *Ty) {
|
||||
assert(C->getType()->isInteger() && Ty->isInteger() &&
|
||||
C->getType()->getPrimitiveSize() <= Ty->getPrimitiveSize() &&
|
||||
"This is an illegal zero extension!");
|
||||
C = ConstantExpr::getCast(C, C->getType()->getUnsignedVersion());
|
||||
return ConstantExpr::getCast(C, Ty);
|
||||
}
|
||||
|
||||
Constant *ConstantExpr::getTy(const Type *ReqTy, unsigned Opcode,
|
||||
Constant *C1, Constant *C2) {
|
||||
if (Opcode == Instruction::Shl || Opcode == Instruction::Shr)
|
||||
|
|
Loading…
Reference in New Issue