add unit tests
llvm-svn: 110278
diff --git a/compiler-rt/BlocksRuntime/tests/globalexpression.c b/compiler-rt/BlocksRuntime/tests/globalexpression.c
new file mode 100644
index 0000000..eeedd75
--- /dev/null
+++ b/compiler-rt/BlocksRuntime/tests/globalexpression.c
@@ -0,0 +1,42 @@
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// testfilerunner CONFIG
+
+#import <stdio.h>
+#import <Block.h>
+
+int global;
+
+void (^gblock)(int) = ^(int x){ global = x; };
+
+int main(int argc, char *argv[]) {
+ gblock(1);
+ if (global != 1) {
+ printf("%s: *** did not set global to 1\n", argv[0]);
+ return 1;
+ }
+ void (^gblockcopy)(int) = Block_copy(gblock);
+ if (gblockcopy != gblock) {
+ printf("global copy %p not a no-op %p\n", (void *)gblockcopy, (void *)gblock);
+ return 1;
+ }
+ Block_release(gblockcopy);
+ gblock(3);
+ if (global != 3) {
+ printf("%s: *** did not set global to 3\n", argv[0]);
+ return 1;
+ }
+ gblockcopy = Block_copy(gblock);
+ gblockcopy(5);
+ if (global != 5) {
+ printf("%s: *** did not set global to 5\n", argv[0]);
+ return 1;
+ }
+ printf("%s: Success!\n", argv[0]);
+ return 0;
+}
+