diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/ObjCARC/PtrState.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/ObjCARC/PtrState.cpp b/llvm/lib/Transforms/ObjCARC/PtrState.cpp index a5afc8ad977..c1bbc4e96b1 100644 --- a/llvm/lib/Transforms/ObjCARC/PtrState.cpp +++ b/llvm/lib/Transforms/ObjCARC/PtrState.cpp @@ -351,8 +351,10 @@ bool TopDownPtrState::HandlePotentialAlterRefCount(Instruction *Inst, const Value *Ptr, ProvenanceAnalysis &PA, ARCInstKind Class) { - // Check for possible releases. - if (!CanAlterRefCount(Inst, Ptr, PA, Class)) + // Check for possible releases. Treat clang.arc.use as a releasing instruction + // to prevent sinking a retain past it. + if (!CanAlterRefCount(Inst, Ptr, PA, Class) && + Class != ARCInstKind::IntrinsicUser) return false; DEBUG(dbgs() << " CanAlterRefCount: Seq: " << GetSeq() << "; " << *Ptr |
