Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/BlocksRuntime/c99.c

@@ -0,0 +1,20 @@
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+//
+//  c99.m
+//
+// CONFIG C99 rdar://problem/6399225
+
+#import <stdio.h>
+#import <stdlib.h>
+
+int main(int argc, char *argv[]) {
+    void (^blockA)(void) = ^ { ; };
+    blockA();
+    printf("%s: success\n", argv[0]);
+    exit(0);
+}