From 31b54a53793bb61dc584da3a256deadfbc2e6098 Mon Sep 17 00:00:00 2001
From: Nuno Lopes <nunoplopes@sapo.pt>
Date: Mon, 25 Jun 2012 23:26:10 +0000
Subject: revert my previous commit (r159173), since as Eli pointed out, it's
 perfectly ok to mark realloc as noalias

llvm-svn: 159175
---
 llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'llvm/lib/Transforms')

diff --git a/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp
index 1100d6dd77e..99b05389b2b 100644
--- a/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp
+++ b/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp
@@ -1942,6 +1942,7 @@ void SimplifyLibCalls::inferPrototypeAttributes(Function &F) {
           !FTy->getReturnType()->isPointerTy())
         return;
       setDoesNotThrow(F);
+      setDoesNotAlias(F, 0);
       setDoesNotCapture(F, 1);
     } else if (Name == "read") {
       if (FTy->getNumParams() != 3 ||
-- 
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