When checking a call to a builtin atomic operation, be sure to

consider the _<width> variants as well, which we'll see if we're
performing the type checking in a template instantiation where the
call expression itself was originally not type-dependent. Fixes
PR11411.

llvm-svn: 145248

1 files changed, 17 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/atomic.cpp b/clang/test/CodeGenCXX/atomic.cpp
new file mode 100644
index 00000000000..36bb4ef5608
--- /dev/null
+++ b/clang/test/CodeGenCXX/atomic.cpp
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 %s -emit-llvm -o - -triple=i686-apple-darwin9 | FileCheck %s
+
+namespace PR11411 {
+  template<typename _Tp> struct Ptr {
+    void f();
+  };
+
+  // CHECK: define linkonce_odr void @_ZN7PR114113PtrIiE1fEv
+  // CHECK-NOT: ret
+  template<typename _Tp> inline void Ptr<_Tp>::f() {
+    int* _refcount;
+    // CHECK: atomicrmw add i32*
+    __sync_fetch_and_add(_refcount, 1);
+    // CHECK-NEXT: ret void
+  }
+  void f(Ptr<int> *a) { a->f(); }
+}