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Add comment /NFC
author
Xinliang David Li
<davidxl@google.com>
Thu, 11 Aug 2016 23:09:56 +0000
(23:09 +0000)
committer
Xinliang David Li
<davidxl@google.com>
Thu, 11 Aug 2016 23:09:56 +0000
(23:09 +0000)
llvm-svn: 278438
llvm/lib/Analysis/AliasSetTracker.cpp
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diff --git
a/llvm/lib/Analysis/AliasSetTracker.cpp
b/llvm/lib/Analysis/AliasSetTracker.cpp
index
18ba959
..
08452c9
100644
(file)
--- a/
llvm/lib/Analysis/AliasSetTracker.cpp
+++ b/
llvm/lib/Analysis/AliasSetTracker.cpp
@@
-468,8
+468,9
@@
void AliasSetTracker::copyValue(Value *From, Value *To) {
AliasSet::PointerRec &Entry = getEntryFor(To);
if (Entry.hasAliasSet()) return; // Already in the tracker!
- //
Add it to the alias set it aliases..
.
+ //
getEntryFor above may invalidate iterator \c I, so reinitialize it
.
I = PointerMap.find_as(From);
+ // Add it to the alias set it aliases...
AliasSet *AS = I->second->getAliasSet(*this);
AS->addPointer(*this, Entry, I->second->getSize(),
I->second->getAAInfo(),