diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp b/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp index 5af1c37e6197..3978e1e29825 100644 --- a/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp +++ b/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp @@ -1393,9 +1393,10 @@ SCEVExpander::getAddRecExprPHILiterally(const SCEVAddRecExpr *Normalized, // can ensure that IVIncrement dominates the current uses. PostIncLoops = SavedPostIncLoops; - // Remember this PHI, even in post-inc mode. + // Remember this PHI, even in post-inc mode. LSR SCEV-based salvaging is most + // effective when we are able to use an IV inserted here, so record it. InsertedValues.insert(PN); - + InsertedIVs.push_back(PN); return PN; } |