From: David Chisnall <csdavec@swan.ac.uk>
Date: Wed, 21 Jul 2010 12:55:25 +0000 (+0000)
Subject: Mark the load after calling objc_msg_lookup_sender() so that it doesn't get optimised... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=41d0c7a2355c1a47b33f5e528c5f815ca5b52e9e;p=clang

Mark the load after calling objc_msg_lookup_sender() so that it doesn't get optimised away (GNU runtime).



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109010 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index faec7eeb3b..41c1a2a750 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -722,8 +722,8 @@ CGObjCGNU::GenerateMessageSend(CodeGen::CodeGenFunction &CGF,
 
     // The lookup function may have changed the receiver, so make sure we use
     // the new one.
-    ActualArgs[0] =
-        std::make_pair(RValue::get(Builder.CreateLoad(ReceiverPtr)), ASTIdTy);
+    ActualArgs[0] = std::make_pair(RValue::get(
+        Builder.CreateLoad(ReceiverPtr, true)), ASTIdTy);
   } else {
     std::vector<const llvm::Type*> Params;
     Params.push_back(Receiver->getType());