From e04f0d34d19c3d5325ff0977d948df3771fafc43 Mon Sep 17 00:00:00 2001
From: Richard Smith <richard-llvm@metafoo.co.uk>
Date: Thu, 16 May 2013 04:12:04 +0000
Subject: Respect the 'nobuiltin' attribute when determining if a call is to a
 memory builtin.

llvm-svn: 181978
---
 llvm/lib/Analysis/MemoryBuiltins.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/Analysis/MemoryBuiltins.cpp')

diff --git a/llvm/lib/Analysis/MemoryBuiltins.cpp b/llvm/lib/Analysis/MemoryBuiltins.cpp
index 9c0d8ac6a3e..166034702ce 100644
--- a/llvm/lib/Analysis/MemoryBuiltins.cpp
+++ b/llvm/lib/Analysis/MemoryBuiltins.cpp
@@ -77,6 +77,9 @@ static Function *getCalledFunction(const Value *V, bool LookThroughBitCast) {
   if (!CS.getInstruction())
     return 0;
 
+  if (CS.hasFnAttr(Attribute::NoBuiltin))
+    return 0;
+
   Function *Callee = CS.getCalledFunction();
   if (!Callee || !Callee->isDeclaration())
     return 0;
-- 
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