diff options
Diffstat (limited to 'lib/VMCore/Dominators.cpp')
-rw-r--r-- | lib/VMCore/Dominators.cpp | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/lib/VMCore/Dominators.cpp b/lib/VMCore/Dominators.cpp index 6f1de46604..735a70c509 100644 --- a/lib/VMCore/Dominators.cpp +++ b/lib/VMCore/Dominators.cpp @@ -160,10 +160,7 @@ void DominanceFrontier::splitBlock(BasicBlock *NewBB) { break; } } - - if (!BlockDominatesAny) - continue; - + // If NewBBSucc should not stay in our dominator frontier, remove it. // We remove it unless there is a predecessor of NewBBSucc that we // dominate, but we don't strictly dominate NewBBSucc. @@ -181,7 +178,8 @@ void DominanceFrontier::splitBlock(BasicBlock *NewBB) { if (ShouldRemove) removeFromFrontier(DFI, NewBBSucc); - addToFrontier(DFI, NewBB); + if (BlockDominatesAny && (&*FI == NewBB || !DT.dominates(FI, NewBB))) + addToFrontier(DFI, NewBB); } } |