Add a flag -fthread-sanitizer.
This flag enables ThreadSanitizer instrumentation committed to llvm as r150423.
The patch includes one test for -fthread-sanitizer and one similar test for -faddress-sanitizer.
This patch does not modify the linker flags (as we do it for -faddress-sanitizer) because the run-time library is not yet
committed and it's structure in compiler-rt is not 100% clear.
The users manual wil be changed in a separate commit.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151846 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index d9bdc32..79cdb3c 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -126,6 +126,11 @@
PM.add(createAddressSanitizerPass());
}
+static void addThreadSanitizerPass(const PassManagerBuilder &Builder,
+ PassManagerBase &PM) {
+ PM.add(createThreadSanitizerPass());
+}
+
void EmitAssemblyHelper::CreatePasses() {
unsigned OptLevel = CodeGenOpts.OptimizationLevel;
CodeGenOptions::InliningMethod Inlining = CodeGenOpts.Inlining;
@@ -161,7 +166,14 @@
PMBuilder.addExtension(PassManagerBuilder::EP_EnabledOnOptLevel0,
addAddressSanitizerPass);
}
-
+
+ if (LangOpts.ThreadSanitizer) {
+ PMBuilder.addExtension(PassManagerBuilder::EP_ScalarOptimizerLate,
+ addThreadSanitizerPass);
+ PMBuilder.addExtension(PassManagerBuilder::EP_EnabledOnOptLevel0,
+ addThreadSanitizerPass);
+ }
+
// Figure out TargetLibraryInfo.
Triple TargetTriple(TheModule->getTargetTriple());
PMBuilder.LibraryInfo = new TargetLibraryInfo(TargetTriple);