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-rw-r--r--clang/test/CodeGenCXX/threadsafe-statics.cpp23
1 files changed, 23 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/threadsafe-statics.cpp b/clang/test/CodeGenCXX/threadsafe-statics.cpp
new file mode 100644
index 0000000..8afc274
--- /dev/null
+++ b/clang/test/CodeGenCXX/threadsafe-statics.cpp
@@ -0,0 +1,23 @@
+// RUN: %clang_cc1 -emit-llvm -triple=x86_64-apple-darwin10 -o - %s | FileCheck -check-prefix=WITH-TSS %s
+// RUN: %clang_cc1 -emit-llvm -triple=x86_64-apple-darwin10 -o - %s -fno-threadsafe-statics | FileCheck -check-prefix=NO-TSS %s
+
+int f();
+
+// WITH-TSS: @_ZZ1gvE1a = internal global i32 0, align 4
+// WITH-TSS: @_ZGVZ1gvE1a = internal global i64 0
+
+// WITH-TSS: define void @_Z1gv() nounwind
+// WITH-TSS: call i32 @__cxa_guard_acquire
+// WITH-TSS: call void @__cxa_guard_release
+// WITH-TSS: ret void
+void g() {
+ static int a = f();
+}
+
+// NO-TSS: @_ZZ1gvE1a = internal global i32 0, align 4
+// NO-TSS: @_ZGVZ1gvE1a = internal global i8 0
+
+// NO-TSS: define void @_Z1gv() nounwind
+// NO-TSS-NOT: call i32 @__cxa_guard_acquire
+// NO-TSS-NOT: call void @__cxa_guard_release
+// NO-TSS: ret void