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Replacing a cast with another one does not reduce the number of

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casts in the input.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40741 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-08-02 17:23:38 +00:00
parent ce4eaecb2e
commit 5543a856ff
1 changed files with 3 additions and 5 deletions
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8
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -6384,12 +6384,10 @@ static bool CanEvaluateInDifferentType(Value *V, const IntegerType *Ty,
case Instruction::SExt:
case Instruction::Trunc:
// If this is the same kind of case as our original (e.g. zext+zext), we
// can safely eliminate it.
break; // FIXME: This causes PR1594
if (I->getOpcode() == CastOpc) {
++NumCastsRemoved;
// can safely replace it. Note that replacing it does not reduce the number
// of casts in the input.
if (I->getOpcode() == CastOpc)
return true;
}
break;
default:
// TODO: Can handle more cases here.