Explain change with a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30443 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2006-09-17 17:51:00 +00:00
parent 38c7c42a32
commit e81f725b3a

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@ -374,8 +374,8 @@ void AliasSetTracker::remove(AliasSet &AS) {
++NumRefs;
// Finally, remove the entry.
Value *Remove = P->first;
PointerMap.erase(Remove);
Value *Remove = P->first; // Take a copy because it is invalid to pass
PointerMap.erase(Remove); // a reference to the data being erased.
}
// Stop using the alias set, removing it.