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Make RequiresTypeConversion canonicalize the types before calling the

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target hooks canLosslesslyBitCastTo and isTruncateFree. This allows
targets to avoid worrying about handling all combinations of integer
and pointer types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70555 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-05-01 17:07:43 +00:00
parent 9032b78c98
commit 9f2d671b15
1 changed files with 3 additions and 1 deletions
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4
lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -1170,7 +1170,9 @@ bool LoopStrengthReduce::RequiresTypeConversion(const Type *Ty1,
const Type *Ty2) {
if (Ty1 == Ty2)
return false;
if (SE->getEffectiveSCEVType(Ty1) == SE->getEffectiveSCEVType(Ty2))
Ty1 = SE->getEffectiveSCEVType(Ty1);
Ty2 = SE->getEffectiveSCEVType(Ty2);
if (Ty1 == Ty2)
return false;
if (Ty1->canLosslesslyBitCastTo(Ty2))
return false;