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minor simplification to code: Ty is already a SCEV type; don't need to run getEffectiveSCEVType() twice

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156823 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nuno Lopes 2012-05-15 15:44:38 +00:00
parent 6dd3bdb18a
commit 39de32f497
1 changed files with 3 additions and 6 deletions
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9
lib/Analysis/ScalarEvolution.cpp
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@ -826,8 +826,7 @@ const SCEV *ScalarEvolution::getTruncateExpr(const SCEV *Op,
// Fold if the operand is constant.
if (const SCEVConstant *SC = dyn_cast<SCEVConstant>(Op))
return getConstant(
cast<ConstantInt>(ConstantExpr::getTrunc(SC->getValue(),
getEffectiveSCEVType(Ty))));
cast<ConstantInt>(ConstantExpr::getTrunc(SC->getValue(), Ty)));
// trunc(trunc(x)) --> trunc(x)
if (const SCEVTruncateExpr *ST = dyn_cast<SCEVTruncateExpr>(Op))
@ -906,8 +905,7 @@ const SCEV *ScalarEvolution::getZeroExtendExpr(const SCEV *Op,
// Fold if the operand is constant.
if (const SCEVConstant *SC = dyn_cast<SCEVConstant>(Op))
return getConstant(
cast<ConstantInt>(ConstantExpr::getZExt(SC->getValue(),
getEffectiveSCEVType(Ty))));
cast<ConstantInt>(ConstantExpr::getZExt(SC->getValue(), Ty)));
// zext(zext(x)) --> zext(x)
if (const SCEVZeroExtendExpr *SZ = dyn_cast<SCEVZeroExtendExpr>(Op))
@ -1164,8 +1162,7 @@ const SCEV *ScalarEvolution::getSignExtendExpr(const SCEV *Op,
// Fold if the operand is constant.
if (const SCEVConstant *SC = dyn_cast<SCEVConstant>(Op))
return getConstant(
cast<ConstantInt>(ConstantExpr::getSExt(SC->getValue(),
getEffectiveSCEVType(Ty))));
cast<ConstantInt>(ConstantExpr::getSExt(SC->getValue(), Ty)));
// sext(sext(x)) --> sext(x)
if (const SCEVSignExtendExpr *SS = dyn_cast<SCEVSignExtendExpr>(Op))