rework test for issue #1075 to return an exit code

test/misc/bug1075.c

@@ -1,10 +1,31 @@
 /* bug #1075 Internal compiler error */
 
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
 long rhs;
 
-int main(void)
+int test(void)
 {
     /* the whole lhs is errorneously treated as an absolute address (integer 
        constant) neglecting its dereference */
     return *(char *)0xD77C + rhs;
-} 
+}
+
+int res;
+
+int main(void)
+{
+    memset(*(char *)0xD76C, 11, 0x80);
+    rhs = 0x10;
+    *(char *)(0xD77C + rhs) = 13;
+    *(char *)0xD77C = 23;
+    *(char *)0xD78C = 42;
+    res = test();
+    printf("res: %d\n", res);
+    if (res != (23 + 0x10)) {
+        return EXIT_FAILURE;
+    }
+    return EXIT_SUCCESS;
+}