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authorChris Lattner <sabre@nondot.org>2005-03-25 05:49:37 +0000
committerChris Lattner <sabre@nondot.org>2005-03-25 05:49:37 +0000
commit2958eeabcf436aaa4e988a98621d81f45cdd4871 (patch)
tree8da46e8d561be00630998f19d86e48444120a521 /lib/Analysis
parenta92076d475ed51d3ced5f2ec077f33d97aa8c8bb (diff)
Treat free operations as volatile, since they cannot be moved. This fixes
Transforms/LICM/2005-03-24-LICM-Aggregate-Crash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20830 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis')
-rw-r--r--lib/Analysis/AliasSetTracker.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Analysis/AliasSetTracker.cpp b/lib/Analysis/AliasSetTracker.cpp
index 4b36f4089c2..73baf4a1b1e 100644
--- a/lib/Analysis/AliasSetTracker.cpp
+++ b/lib/Analysis/AliasSetTracker.cpp
@@ -288,6 +288,9 @@ bool AliasSetTracker::add(FreeInst *FI) {
bool NewPtr;
AliasSet &AS = addPointer(FI->getOperand(0), ~0,
AliasSet::Mods, NewPtr);
+
+ // Free operations are volatile ops (cannot be moved).
+ AS.setVolatile();
return NewPtr;
}