diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUnroll.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopUnroll.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUnroll.cpp b/llvm/lib/Transforms/Utils/LoopUnroll.cpp index 4a1edb3700c..a7590fc3254 100644 --- a/llvm/lib/Transforms/Utils/LoopUnroll.cpp +++ b/llvm/lib/Transforms/Utils/LoopUnroll.cpp @@ -870,7 +870,7 @@ LoopUnrollResult llvm::UnrollLoop(Loop *L, UnrollLoopOptions ULO, LoopInfo *LI, assert(!DT || !UnrollVerifyDomtree || DT->verify(DominatorTree::VerificationLevel::Fast)); - DomTreeUpdater DTU(DT, DomTreeUpdater::UpdateStrategy::Eager); + DomTreeUpdater DTU(DT, DomTreeUpdater::UpdateStrategy::Lazy); // Merge adjacent basic blocks, if possible. for (BasicBlock *Latch : Latches) { BranchInst *Term = dyn_cast<BranchInst>(Latch->getTerminator()); @@ -890,6 +890,8 @@ LoopUnrollResult llvm::UnrollLoop(Loop *L, UnrollLoopOptions ULO, LoopInfo *LI, } } } + // Apply updates to the DomTree. + DT = &DTU.getDomTree(); // At this point, the code is well formed. We now simplify the unrolled loop, // doing constant propagation and dead code elimination as we go. |
