1 files changed, 6 insertions, 0 deletions
diff --git a/test/CodeGen/builtins.c b/test/CodeGen/builtins.c
index fca087e..65b9ad1 100644
--- a/test/CodeGen/builtins.c
+++ b/test/CodeGen/builtins.c
@@ -203,3 +203,9 @@ void test_builtin_longjmp(void **buffer) {
   __builtin_longjmp(buffer, 1);
   // CHECK-NEXT: unreachable
 }
+
+// CHECK: define i64 @test_builtin_readcyclecounter
+long long test_builtin_readcyclecounter() {
+  // CHECK: call i64 @llvm.readcyclecounter()
+  return __builtin_readcyclecounter();
+}