diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp index c235d2fb2a5b..f99f4487c554 100644 --- a/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp +++ b/llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp @@ -1249,8 +1249,9 @@ static BasicBlock *buildClonedLoopBlocks( assert(VMap.lookup(&I) == &ClonedI && "Mismatch in the value map!"); // Forget SCEVs based on exit phis in case SCEV looked through the phi. - if (SE && isa<PHINode>(I)) - SE->forgetValue(&I); + if (SE) + if (auto *PN = dyn_cast<PHINode>(&I)) + SE->forgetLcssaPhiWithNewPredecessor(&L, PN); BasicBlock::iterator InsertPt = MergeBB->getFirstInsertionPt(); |