[llvm-commits] [llvm] r136319 - /llvm/trunk/lib/Transforms/Scalar/LowerAtomic.cpp

[Benjamin Kramer]

Author: d0k
Date: Wed Jul 27 20:20:19 2011
New Revision: 136319

URL: http://llvm.org/viewvc/llvm-project?rev=136319&view=rev
Log:
Fix a use after free. An instruction can't be both an intrinsic call and a fence.

Modified:
    llvm/trunk/lib/Transforms/Scalar/LowerAtomic.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/LowerAtomic.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LowerAtomic.cpp?rev=136319&r1=136318&r2=136319&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LowerAtomic.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LowerAtomic.cpp Wed Jul 27 20:20:19 2011
@@ -132,7 +132,7 @@
         Instruction *Inst = DI++;
         if (IntrinsicInst *II = dyn_cast<IntrinsicInst>(Inst))
           Changed |= LowerAtomicIntrinsic(II);
-        if (FenceInst *FI = dyn_cast<FenceInst>(Inst))
+        else if (FenceInst *FI = dyn_cast<FenceInst>(Inst))
           Changed |= LowerFenceInst(FI);
       }
       return Changed;