From: Chris Lattner <sabre@nondot.org>
Date: Thu, 22 May 2008 03:23:06 +0000 (+0000)
Subject: Free and vaarg are not really volatile.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=05a24e5efe176fc22ba166e08ff9ddeb9e4e73a0;p=oota-llvm.git

Free and vaarg are not really volatile.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51407 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/AliasSetTracker.cpp b/lib/Analysis/AliasSetTracker.cpp
index 228bb80ae3b..398bf5aca5b 100644
--- a/lib/Analysis/AliasSetTracker.cpp
+++ b/lib/Analysis/AliasSetTracker.cpp
@@ -284,20 +284,13 @@ bool AliasSetTracker::add(StoreInst *SI) {
 
 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();
+  addPointer(FI->getOperand(0), ~0, AliasSet::Mods, NewPtr);
   return NewPtr;
 }
 
 bool AliasSetTracker::add(VAArgInst *VAAI) {
   bool NewPtr;
-  AliasSet &AS = addPointer(VAAI->getOperand(0), ~0, AliasSet::ModRef, NewPtr);
-  
-  // Treat vaarg instructions as volatile (not to be moved).
-  AS.setVolatile();
+  addPointer(VAAI->getOperand(0), ~0, AliasSet::ModRef, NewPtr);
   return NewPtr;
 }