diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopSimplifyCFG.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopSimplifyCFG.cpp b/llvm/lib/Transforms/Scalar/LoopSimplifyCFG.cpp index 3bb25b0f570..dbe68d00c50 100644 --- a/llvm/lib/Transforms/Scalar/LoopSimplifyCFG.cpp +++ b/llvm/lib/Transforms/Scalar/LoopSimplifyCFG.cpp @@ -229,8 +229,10 @@ private: // Now, all exit blocks that are not marked as live are dead. SmallVector<BasicBlock *, 8> ExitBlocks; L.getExitBlocks(ExitBlocks); + SmallPtrSet<BasicBlock *, 8> UniqueDeadExits; for (auto *ExitBlock : ExitBlocks) - if (!LiveExitBlocks.count(ExitBlock)) + if (!LiveExitBlocks.count(ExitBlock) && + UniqueDeadExits.insert(ExitBlock).second) DeadExitBlocks.push_back(ExitBlock); // Whether or not the edge From->To will still be present in graph after the |
