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[LoadStoreVectorizer] Use const reference 

llvm-svn: 337992
This commit is contained in:
Fangrui Song 2018-07-26 01:11:36 +00:00
parent e11adcc269
commit 984a424c8a
1 changed files with 6 additions and 4 deletions
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10
llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp
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@ -147,11 +147,11 @@ private:
static const unsigned MaxDepth = 3; static const unsigned MaxDepth = 3;
bool isConsecutiveAccess(Value *A, Value *B); bool isConsecutiveAccess(Value *A, Value *B);
bool areConsecutivePointers(Value *PtrA, Value *PtrB, APInt PtrDelta, bool areConsecutivePointers(Value *PtrA, Value *PtrB, const APInt &PtrDelta,
unsigned Depth = 0) const; unsigned Depth = 0) const;
bool lookThroughComplexAddresses(Value *PtrA, Value *PtrB, APInt PtrDelta, bool lookThroughComplexAddresses(Value *PtrA, Value *PtrB, APInt PtrDelta,
unsigned Depth) const; unsigned Depth) const;
bool lookThroughSelects(Value *PtrA, Value *PtrB, APInt PtrDelta, bool lookThroughSelects(Value *PtrA, Value *PtrB, const APInt &PtrDelta,
unsigned Depth) const; unsigned Depth) const;
/// After vectorization, reorder the instructions that I depends on /// After vectorization, reorder the instructions that I depends on
@ -319,7 +319,8 @@ bool Vectorizer::isConsecutiveAccess(Value *A, Value *B) {
} }
bool Vectorizer::areConsecutivePointers(Value *PtrA, Value *PtrB, bool Vectorizer::areConsecutivePointers(Value *PtrA, Value *PtrB,
APInt PtrDelta, unsigned Depth) const { const APInt &PtrDelta,
unsigned Depth) const {
unsigned PtrBitWidth = DL.getPointerTypeSizeInBits(PtrA->getType()); unsigned PtrBitWidth = DL.getPointerTypeSizeInBits(PtrA->getType());
APInt OffsetA(PtrBitWidth, 0); APInt OffsetA(PtrBitWidth, 0);
APInt OffsetB(PtrBitWidth, 0); APInt OffsetB(PtrBitWidth, 0);
@ -450,7 +451,8 @@ bool Vectorizer::lookThroughComplexAddresses(Value *PtrA, Value *PtrB,
return X == OffsetSCEVB; return X == OffsetSCEVB;
} }
bool Vectorizer::lookThroughSelects(Value *PtrA, Value *PtrB, APInt PtrDelta, bool Vectorizer::lookThroughSelects(Value *PtrA, Value *PtrB,
const APInt &PtrDelta,
unsigned Depth) const { unsigned Depth) const {
if (Depth++ == MaxDepth) if (Depth++ == MaxDepth)
return false; return false;