diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUnroll.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopUnroll.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUnroll.cpp b/llvm/lib/Transforms/Utils/LoopUnroll.cpp index 506edf945eb..9fb7d68e5fd 100644 --- a/llvm/lib/Transforms/Utils/LoopUnroll.cpp +++ b/llvm/lib/Transforms/Utils/LoopUnroll.cpp @@ -403,8 +403,9 @@ LoopUnrollResult llvm::UnrollLoop( "Did not expect runtime trip-count unrolling " "and peeling for the same loop"); + bool Peeled = false; if (PeelCount) { - bool Peeled = peelLoop(L, PeelCount, LI, SE, DT, AC, PreserveLCSSA); + Peeled = peelLoop(L, PeelCount, LI, SE, DT, AC, PreserveLCSSA); // Successful peeling may result in a change in the loop preheader/trip // counts. If we later unroll the loop, we want these to be updated. @@ -790,7 +791,7 @@ LoopUnrollResult llvm::UnrollLoop( } // Simplify any new induction variables in the partially unrolled loop. - if (SE && !CompletelyUnroll && Count > 1) { + if (SE && !CompletelyUnroll && (Count > 1 || Peeled)) { SmallVector<WeakTrackingVH, 16> DeadInsts; simplifyLoopIVs(L, SE, DT, LI, DeadInsts); |
