fix comment, thanks all :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89666 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index 32ca911..ff65e33 100644
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -263,7 +263,9 @@
bool BasicAliasAnalysis::pointsToConstantMemory(const Value *P) {
if (const GlobalVariable *GV =
dyn_cast<GlobalVariable>(P->getUnderlyingObject()))
- // FIXME: shouldn't this require GV to be "ODR"?
+ // Note: this doesn't require GV to be "ODR" because it isn't legal for a
+ // global to be marked constant in some modules and non-constant in others.
+ // GV may even be a declaration, not a definition.
return GV->isConstant();
return false;
}