diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp index e1d18e8f99b..9ef9b05639a 100644 --- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -3116,14 +3116,13 @@ bool LSRInstance::InsertFormula(LSRUse &LU, unsigned LUIdx, const Formula &F) { void LSRInstance::CollectLoopInvariantFixupsAndFormulae() { SmallVector<const SCEV *, 8> Worklist(RegUses.begin(), RegUses.end()); - SmallPtrSet<const SCEV *, 8> Inserted; - SmallPtrSet<const SCEV *, 32> Done; + SmallPtrSet<const SCEV *, 32> Visited; while (!Worklist.empty()) { const SCEV *S = Worklist.pop_back_val(); // Don't process the same SCEV twice - if (!Done.insert(S)) + if (!Visited.insert(S)) continue; if (const SCEVNAryExpr *N = dyn_cast<SCEVNAryExpr>(S)) @@ -3134,7 +3133,6 @@ LSRInstance::CollectLoopInvariantFixupsAndFormulae() { Worklist.push_back(D->getLHS()); Worklist.push_back(D->getRHS()); } else if (const SCEVUnknown *US = dyn_cast<SCEVUnknown>(S)) { - if (!Inserted.insert(US)) continue; const Value *V = US->getValue(); if (const Instruction *Inst = dyn_cast<Instruction>(V)) { // Look for instructions defined outside the loop. |
