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[LSR] Strip dead code (NFC) #146109

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Merged
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Jul 3, 2025
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[LSR] Strip dead code (NFC) #146109

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9 changes: 0 additions & 9 deletions llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -6479,10 +6479,6 @@ struct SCEVDbgValueBuilder {
/// Chain (non-affine) SCEVs are not supported.
bool SCEVToValueExpr(const llvm::SCEVAddRecExpr &SAR, ScalarEvolution &SE) {
assert(SAR.isAffine() && "Expected affine SCEV");
// TODO: Is this check needed?
if (isa<SCEVAddRecExpr>(SAR.getStart()))
return false;

const SCEV *Start = SAR.getStart();
const SCEV *Stride = SAR.getStepRecurrence(SE);

Expand Down Expand Up @@ -6550,11 +6546,6 @@ struct SCEVDbgValueBuilder {
bool SCEVToIterCountExpr(const llvm::SCEVAddRecExpr &SAR,
ScalarEvolution &SE) {
assert(SAR.isAffine() && "Expected affine SCEV");
if (isa<SCEVAddRecExpr>(SAR.getStart())) {
LLVM_DEBUG(dbgs() << "scev-salvage: IV SCEV. Unsupported nested AddRec: "
<< SAR << '\n');
return false;
}
const SCEV *Start = SAR.getStart();
const SCEV *Stride = SAR.getStepRecurrence(SE);

Expand Down