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[LAA] Minor code style tweaks [NFC]

This commit is contained in:
Philip Reames 2020-11-24 15:49:16 -08:00
parent abbf4802bb
commit b3a8a15343
1 changed files with 15 additions and 23 deletions
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38
llvm/lib/Analysis/LoopAccessAnalysis.cpp
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@ -149,27 +149,23 @@ const SCEV *llvm::replaceSymbolicStrideSCEV(PredicatedScalarEvolution &PSE,
// symbolic stride replaced by one.
ValueToValueMap::const_iterator SI =
PtrToStride.find(OrigPtr ? OrigPtr : Ptr);
if (SI != PtrToStride.end()) {
Value *StrideVal = SI->second;
if (SI == PtrToStride.end())
// For a non-symbolic stride, just return the original expression.
return OrigSCEV;
// Strip casts.
StrideVal = stripIntegerCast(StrideVal);
Value *StrideVal = stripIntegerCast(SI->second);
ScalarEvolution *SE = PSE.getSE();
const auto *U = cast<SCEVUnknown>(SE->getSCEV(StrideVal));
const auto *CT =
static_cast<const SCEVConstant *>(SE->getOne(StrideVal->getType()));
ScalarEvolution *SE = PSE.getSE();
const auto *U = cast<SCEVUnknown>(SE->getSCEV(StrideVal));
const auto *CT =
static_cast<const SCEVConstant *>(SE->getOne(StrideVal->getType()));
PSE.addPredicate(*SE->getEqualPredicate(U, CT));
auto *Expr = PSE.getSCEV(Ptr);
PSE.addPredicate(*SE->getEqualPredicate(U, CT));
auto *Expr = PSE.getSCEV(Ptr);
LLVM_DEBUG(dbgs() << "LAA: Replacing SCEV: " << *OrigSCEV
<< " by: " << *Expr << "\n");
return Expr;
}
// Otherwise, just return the SCEV of the original pointer.
return OrigSCEV;
LLVM_DEBUG(dbgs() << "LAA: Replacing SCEV: " << *OrigSCEV
<< " by: " << *Expr << "\n");
return Expr;
}
RuntimeCheckingPtrGroup::RuntimeCheckingPtrGroup(
@ -2150,12 +2146,8 @@ bool LoopAccessInfo::isUniform(Value *V) const {
}
void LoopAccessInfo::collectStridedAccess(Value *MemAccess) {
Value *Ptr = nullptr;
if (LoadInst *LI = dyn_cast<LoadInst>(MemAccess))
Ptr = LI->getPointerOperand();
else if (StoreInst *SI = dyn_cast<StoreInst>(MemAccess))
Ptr = SI->getPointerOperand();
else
Value *Ptr = getLoadStorePointerOperand(MemAccess);
if (!Ptr)
return;
Value *Stride = getStrideFromPointer(Ptr, PSE->getSE(), TheLoop);