Avoid multiple atomic builtin declaration.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164454 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 14 insertions, 0 deletions

diff --git a/test/Sema/builtins.c b/test/Sema/builtins.c
index b8b03677fd..357b7b6aa0 100644
--- a/test/Sema/builtins.c
+++ b/test/Sema/builtins.c
@@ -51,6 +51,20 @@ void test9(short v) {
   }
 }
 
+// overloaded atomics should be declared only once.
+void test9_1(volatile int* ptr, int val) {
+  __sync_fetch_and_add_4(ptr, val);
+}
+void test9_2(volatile int* ptr, int val) {
+  __sync_fetch_and_add(ptr, val);
+}
+void test9_3(volatile int* ptr, int val) {
+  __sync_fetch_and_add_4(ptr, val);
+  __sync_fetch_and_add(ptr, val);
+  __sync_fetch_and_add(ptr, val);
+  __sync_fetch_and_add_4(ptr, val);
+  __sync_fetch_and_add_4(ptr, val);
+}
 
 // rdar://7236819
 void test10(void) __attribute__((noreturn));