diff options
| author | Roman Divacky <rdivacky@FreeBSD.org> | 2010-07-13 17:19:57 +0000 |
|---|---|---|
| committer | Roman Divacky <rdivacky@FreeBSD.org> | 2010-07-13 17:19:57 +0000 |
| commit | 66e41e3c6e8b8fbc48d5d3b4d2bd9ce0be4ecb75 (patch) | |
| tree | 9de1c5f67a98cd0e73c60838396486c984f63ac2 /lib/Transforms/Scalar/SimplifyCFGPass.cpp | |
| parent | abdf259d487163e72081a8cf4991b1617206b41e (diff) | |
Notes
Diffstat (limited to 'lib/Transforms/Scalar/SimplifyCFGPass.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/SimplifyCFGPass.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/SimplifyCFGPass.cpp b/lib/Transforms/Scalar/SimplifyCFGPass.cpp index 97441008c46c..49d93a2fcc27 100644 --- a/lib/Transforms/Scalar/SimplifyCFGPass.cpp +++ b/lib/Transforms/Scalar/SimplifyCFGPass.cpp @@ -137,6 +137,9 @@ static bool MarkAliveBlocks(BasicBlock *BB, // they should be changed to unreachable by passes that can't modify the // CFG. if (StoreInst *SI = dyn_cast<StoreInst>(BBI)) { + // Don't touch volatile stores. + if (SI->isVolatile()) continue; + Value *Ptr = SI->getOperand(1); if (isa<UndefValue>(Ptr) || |