diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyCFG.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyCFG.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp index e0c598f92e2..ff81e7d5acf 100644 --- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp @@ -1618,6 +1618,11 @@ static bool SpeculativelyExecuteBB(BranchInst *BI, BasicBlock *ThenBB, SpeculatedStore->setOperand(0, S); } + // Metadata can be dependent on the condition we are hoisting above. + // Conservatively strip all metadata on the instruction. + for (auto &I: *ThenBB) + I.dropUnknownNonDebugMetadata(); + // Hoist the instructions. BB->getInstList().splice(BI->getIterator(), ThenBB->getInstList(), ThenBB->begin(), std::prev(ThenBB->end())); |
