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No need to pessimize current code for future possibilities.

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llvm-svn: 19311
This commit is contained in:
Chris Lattner 2005-01-06 16:26:38 +00:00
parent 9bf3df5cc6
commit 97d3bf5049
1 changed files with 3 additions and 4 deletions
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7
lib/VMCore/ConstantFolding.cpp
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@ -529,10 +529,9 @@ Constant *llvm::ConstantFoldCastInstruction(const Constant *V,
if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
if (DestTy == Type::BoolTy)
// FIXME: When we support 'external weak' references, we have to prevent
// this transformation from happening. In the meantime we avoid folding
// any cast of an external symbol.
if (!GV->isExternal())
return ConstantBool::True;
// this transformation from happening. This code will need to be updated
// to ignore external weak symbols when we support it.
return ConstantBool::True;
} else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
if (CE->getOpcode() == Instruction::Cast) {
Constant *Op = const_cast<Constant*>(CE->getOperand(0));