From 8fd1254a0a714ba4bb038dc18fd1ab8dcff99497 Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Sat, 3 Dec 2011 02:45:50 +0000
Subject: Creating multiple JITs on X86 in multiple threads causes multiple
 writes (of the same value) to this variable. This code could be refactored,
 but it doesn't matter since the old JIT is going away. Add tsan annotations
 to ignore the race.

llvm-svn: 145745
---
 llvm/lib/Target/X86/X86JITInfo.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'llvm/lib/Target/X86/X86JITInfo.cpp')

diff --git a/llvm/lib/Target/X86/X86JITInfo.cpp b/llvm/lib/Target/X86/X86JITInfo.cpp
index 3f88fa69d0e..2145a331de7 100644
--- a/llvm/lib/Target/X86/X86JITInfo.cpp
+++ b/llvm/lib/Target/X86/X86JITInfo.cpp
@@ -424,7 +424,9 @@ X86CompilationCallback2(intptr_t *StackPtr, intptr_t RetAddr) {
 
 TargetJITInfo::LazyResolverFn
 X86JITInfo::getLazyResolverFunction(JITCompilerFn F) {
+  TsanIgnoreWritesBegin();
   JITCompilerFunction = F;
+  TsanIgnoreWritesEnd();
 
 #if defined (X86_32_JIT) && !defined (_MSC_VER)
   if (Subtarget->hasSSE1())
-- 
cgit v1.2.3