diff options
Diffstat (limited to 'lib/Analysis/AliasSetTracker.cpp')
| -rw-r--r-- | lib/Analysis/AliasSetTracker.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Analysis/AliasSetTracker.cpp b/lib/Analysis/AliasSetTracker.cpp index 68603e53b6..228bb80ae3 100644 --- a/lib/Analysis/AliasSetTracker.cpp +++ b/lib/Analysis/AliasSetTracker.cpp @@ -294,7 +294,10 @@ bool AliasSetTracker::add(FreeInst *FI) { bool AliasSetTracker::add(VAArgInst *VAAI) { bool NewPtr; - addPointer(VAAI->getOperand(0), ~0, AliasSet::ModRef, NewPtr); + AliasSet &AS = addPointer(VAAI->getOperand(0), ~0, AliasSet::ModRef, NewPtr); + + // Treat vaarg instructions as volatile (not to be moved). + AS.setVolatile(); return NewPtr; } |