diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-04-26 19:45:00 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-04-26 19:45:00 +0000 |
| commit | 12f3ca4cdb95b193af905a00e722a4dcb40b3de3 (patch) | |
| tree | ae1a7fcfc24a8d4b23206c57121c3f361d4b7f84 /lib/Transforms/ObjCARC/PtrState.cpp | |
| parent | d99dafe2e4a385dd2a6c76da6d8258deb100657b (diff) | |
Diffstat (limited to 'lib/Transforms/ObjCARC/PtrState.cpp')
| -rw-r--r-- | lib/Transforms/ObjCARC/PtrState.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Transforms/ObjCARC/PtrState.cpp b/lib/Transforms/ObjCARC/PtrState.cpp index a5afc8ad977cb..c1bbc4e96b16d 100644 --- a/lib/Transforms/ObjCARC/PtrState.cpp +++ b/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 |