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[LIR] Update some comments. NFC.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253603 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chad Rosier 2015-11-19 21:33:07 +00:00
parent 634e1cb482
commit cdbb6a49e2
1 changed files with 4 additions and 5 deletions
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9
lib/Transforms/Scalar/LoopIdiomRecognize.cpp
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@ -361,9 +361,7 @@ bool LoopIdiomRecognize::processLoopStore(StoreInst *SI, const SCEV *BECount) {
StoredVal, SI, StoreEv, BECount, NegStride))
return true;
// If the stored value is a strided load in the same loop with the same stride
// this may be transformable into a memcpy. This kicks in for stuff like
// for (i) A[i] = B[i];
// Optimize the store into a memcpy, if it feeds an similarly strided load.
return processLoopStoreOfLoopLoad(SI, StoreSize, StoreEv, BECount, NegStride);
}
@ -607,8 +605,9 @@ bool LoopIdiomRecognize::processLoopStridedStore(
return true;
}
/// processLoopStoreOfLoopLoad - We see a strided store whose value is a
/// same-strided load.
/// If the stored value is a strided load in the same loop with the same stride
/// this may be transformable into a memcpy. This kicks in for stuff like
/// for (i) A[i] = B[i];
bool LoopIdiomRecognize::processLoopStoreOfLoopLoad(
StoreInst *SI, unsigned StoreSize, const SCEVAddRecExpr *StoreEv,
const SCEV *BECount, bool NegStride) {