diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUnroll.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopUnroll.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUnroll.cpp b/llvm/lib/Transforms/Utils/LoopUnroll.cpp index 3999989ec89..44dde1b51cf 100644 --- a/llvm/lib/Transforms/Utils/LoopUnroll.cpp +++ b/llvm/lib/Transforms/Utils/LoopUnroll.cpp @@ -550,7 +550,7 @@ bool llvm::UnrollLoop(Loop *L, unsigned Count, unsigned TripCount, if (!OuterL && !CompletelyUnroll) OuterL = L; if (OuterL) { - simplifyLoop(OuterL, DT, LI, PP, SE, AC); + bool Simplified = simplifyLoop(OuterL, DT, LI, PP, SE, AC); // LCSSA must be performed on the outermost affected loop. The unrolled // loop's last loop latch is guaranteed to be in the outermost loop after @@ -560,7 +560,7 @@ bool llvm::UnrollLoop(Loop *L, unsigned Count, unsigned TripCount, while (OuterL->getParentLoop() != LatchLoop) OuterL = OuterL->getParentLoop(); - if (CompletelyUnroll && !AllExitsAreInsideParentLoop) + if (CompletelyUnroll && (!AllExitsAreInsideParentLoop || Simplified)) formLCSSARecursively(*OuterL, *DT, LI, SE); else assert(OuterL->isLCSSAForm(*DT) && |
