From: Nuno Lopes <nunoplopes@sapo.pt>
Date: Mon, 25 Jun 2012 16:17:54 +0000 (+0000)
Subject: check for the NoAlias attribute through CallSite
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e8742d084c54e9cd230fa03d368f0fedac2106cb;p=oota-llvm.git

check for the NoAlias attribute through CallSite

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159145 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/MemoryBuiltins.cpp b/lib/Analysis/MemoryBuiltins.cpp
index a9f12445350..6b21b73f22f 100644
--- a/lib/Analysis/MemoryBuiltins.cpp
+++ b/lib/Analysis/MemoryBuiltins.cpp
@@ -118,8 +118,8 @@ static const AllocFnsTy *getAllocationData(const Value *V, AllocType AllocTy,
 }
 
 static bool hasNoAliasAttr(const Value *V, bool LookThroughBitCast) {
-  Function *Callee = getCalledFunction(V, LookThroughBitCast);
-  return Callee && Callee->hasFnAttr(Attribute::NoAlias);
+  ImmutableCallSite CS(LookThroughBitCast ? V->stripPointerCasts() : V);
+  return CS && CS.hasFnAttr(Attribute::NoAlias);
 }