diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils')
| -rw-r--r-- | llvm/lib/Transforms/Utils/Local.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index 39b6b889f91..c2d4303ecb0 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -324,8 +324,14 @@ bool llvm::ConstantFoldTerminator(BasicBlock *BB, bool DeleteDeadConditions, Value *Address = IBI->getAddress(); IBI->eraseFromParent(); if (DeleteDeadConditions) + // Delete pointer cast instructions. RecursivelyDeleteTriviallyDeadInstructions(Address, TLI); + // Also zap the blockaddress constant if there are no users remaining, + // otherwise the destination is still marked as having its address taken. + if (BA->use_empty()) + BA->destroyConstant(); + // If we didn't find our destination in the IBI successor list, then we // have undefined behavior. Replace the unconditional branch with an // 'unreachable' instruction. |
