commit 5dd2cfc81edf4c8f3aabc9b4e9be076b8fd0fc02
author Kostya Serebryany <kcc@google.com> Tue Apr 24 06:57:01 2012 +0000
committer Kostya Serebryany <kcc@google.com> Tue Apr 24 06:57:01 2012 +0000
tree e3c2edd3e9a1fecdb926f6d574969dcc1016fe01
parent 0b65c40821b6a0ce73d74924b1550f6ae7afd7f3

enable TBAA when -fthread-sanitizer is given, even with -O0 or  -relaxed-aliasing 

llvm-svn: 155430

clang/lib/CodeGen/CodeGenModule.cpp

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 9a55c08..0b1ddc1 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -102,9 +102,10 @@
   if (LangOpts.CUDA)
     createCUDARuntime();
 
-  // Enable TBAA unless it's suppressed.
-  if (!CodeGenOpts.RelaxedAliasing && CodeGenOpts.OptimizationLevel > 0)
-    TBAA = new CodeGenTBAA(Context, VMContext, getLangOpts(),
+  // Enable TBAA unless it's suppressed. ThreadSanitizer needs TBAA even at O0.
+  if (LangOpts.ThreadSanitizer ||
+      (!CodeGenOpts.RelaxedAliasing && CodeGenOpts.OptimizationLevel > 0))
+    TBAA = new CodeGenTBAA(Context, VMContext, CodeGenOpts, getLangOpts(),
                            ABI.getMangleContext());
 
   // If debug info or coverage generation is enabled, create the CGDebugInfo