1 files changed, 57 insertions, 0 deletions
diff --git a/BlocksRuntime/tests/byrefstruct.c b/BlocksRuntime/tests/byrefstruct.c
new file mode 100644
index 000000000000..a3dc44e2c36e
--- /dev/null
+++ b/BlocksRuntime/tests/byrefstruct.c
@@ -0,0 +1,57 @@
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+//  -*- mode:C; c-basic-offset:4; tab-width:4; intent-tabs-mode:nil;  -*-
+// CONFIG
+
+#import <stdio.h>
+#import <stdlib.h>
+#import <string.h>
+
+typedef struct {
+    unsigned long ps[30];
+    int qs[30];
+} BobTheStruct;
+
+int main (int argc, const char * argv[]) {
+    __block BobTheStruct fiddly;
+    BobTheStruct copy;
+
+    void (^incrementFiddly)() = ^{
+        int i;
+        for(i=0; i<30; i++) {
+            fiddly.ps[i]++;
+            fiddly.qs[i]++;
+        }
+    };
+    
+    memset(&fiddly, 0xA5, sizeof(fiddly));
+    memset(&copy, 0x2A, sizeof(copy));    
+    
+    int i;
+    for(i=0; i<30; i++) {
+        fiddly.ps[i] = i * i * i;
+        fiddly.qs[i] = -i * i * i;
+    }
+    
+    copy = fiddly;
+    incrementFiddly();
+
+    if ( &copy == &fiddly ) {
+        printf("%s: struct wasn't copied.", argv[0]);
+        exit(1);
+    }
+    for(i=0; i<30; i++) {
+        //printf("[%d]: fiddly.ps: %lu, copy.ps: %lu, fiddly.qs: %d, copy.qs: %d\n", i, fiddly.ps[i], copy.ps[i], fiddly.qs[i], copy.qs[i]);
+        if ( (fiddly.ps[i] != copy.ps[i] + 1) || (fiddly.qs[i] != copy.qs[i] + 1) ) {
+            printf("%s: struct contents were not incremented.", argv[0]);
+            exit(1);
+        }
+    }
+    
+    printf("%s: success\n", argv[0]);
+    return 0;
+}