diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineBlockPlacement.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineBlockPlacement.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/MachineBlockPlacement.cpp b/llvm/lib/CodeGen/MachineBlockPlacement.cpp index eec6022..912e9ec 100644 --- a/llvm/lib/CodeGen/MachineBlockPlacement.cpp +++ b/llvm/lib/CodeGen/MachineBlockPlacement.cpp @@ -1159,7 +1159,7 @@ bool MachineBlockPlacement::canTailDuplicateUnplacedPreds( // tail-duplicated into. // Skip any blocks that are already placed or not in this loop. if (Pred == BB || (BlockFilter && !BlockFilter->count(Pred)) - || BlockToChain[Pred] == &Chain) + || (BlockToChain[Pred] == &Chain && !Succ->succ_empty())) continue; if (!TailDup.canTailDuplicate(Succ, Pred)) { if (Successors.size() > 1 && hasSameSuccessors(*Pred, Successors)) |