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Allow getZeroExtend and getSignExtend to work with boolean inputs.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19210 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-01 15:59:57 +00:00
parent 801abe663f
commit f5ac6c27ac
1 changed files with 13 additions and 5 deletions
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18
lib/VMCore/Constants.cpp
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@ -1239,18 +1239,26 @@ Constant *ConstantExpr::getCast(Constant *C, const Type *Ty) {
}
Constant *ConstantExpr::getSignExtend(Constant *C, const Type *Ty) {
assert(C->getType()->isInteger() && Ty->isInteger() &&
assert(C->getType()->isIntegral() && Ty->isIntegral() &&
C->getType()->getPrimitiveSize() <= Ty->getPrimitiveSize() &&
"This is an illegal sign extension!");
C = ConstantExpr::getCast(C, C->getType()->getSignedVersion());
return ConstantExpr::getCast(C, Ty);
if (C->getType() != Type::BoolTy) {
C = ConstantExpr::getCast(C, C->getType()->getSignedVersion());
return ConstantExpr::getCast(C, Ty);
} else {
if (C == ConstantBool::True)
return ConstantIntegral::getAllOnesValue(Ty);
else
return ConstantIntegral::getNullValue(Ty);
}
}
Constant *ConstantExpr::getZeroExtend(Constant *C, const Type *Ty) {
assert(C->getType()->isInteger() && Ty->isInteger() &&
assert(C->getType()->isIntegral() && Ty->isIntegral() &&
C->getType()->getPrimitiveSize() <= Ty->getPrimitiveSize() &&
"This is an illegal zero extension!");
C = ConstantExpr::getCast(C, C->getType()->getUnsignedVersion());
if (C->getType() != Type::BoolTy)
C = ConstantExpr::getCast(C, C->getType()->getUnsignedVersion());
return ConstantExpr::getCast(C, Ty);
}