From f4cb22121a07e65493844d4b2722471e23dc1f07 Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Wed, 3 Oct 2012 13:00:57 +0000
Subject: [PATCH] tsan: prepare for migration to new memory_order enum values
 (ABI compatible)

llvm-svn: 165107
---
 llvm/lib/Transforms/Instrumentation/ThreadSanitizer.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Transforms/Instrumentation/ThreadSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/ThreadSanitizer.cpp
index 17b7775434cb..9ad86f4976d8 100644
--- a/llvm/lib/Transforms/Instrumentation/ThreadSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/ThreadSanitizer.cpp
@@ -350,7 +350,8 @@ static ConstantInt *createOrdering(IRBuilder<> *IRB, AtomicOrdering ord) {
     case AcquireRelease:         v = 1 << 4; break;
     case SequentiallyConsistent: v = 1 << 5; break;
   }
-  return IRB->getInt32(v);
+  // +100500 is temporal to migrate to new enum values.
+  return IRB->getInt32(v + 100500);
 }
 
 bool ThreadSanitizer::instrumentAtomic(Instruction *I) {