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comparison libmudflap/testsuite/libmudflap.c/pass64-frag.c @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 /* PR libmudflap/36397 */
2 /* { dg-do run } */
3 /* { dg-options "-O -fmudflap -fno-strict-aliasing -lmudflap" } */
4
5 struct A
6 {
7 int a[2];
8 };
9
10 long long int x;
11
12 int __attribute__ ((noinline))
13 baz (long long int *x)
14 {
15 return *x;
16 }
17
18 int __attribute__ ((noinline))
19 foo (int i)
20 {
21 if (i > 10)
22 return baz (&x);
23 return ((struct A *) &x)->a[i];
24 }
25
26 int
27 main (void)
28 {
29 if (sizeof (long long) == 2 * sizeof (int)
30 && sizeof (long long) == sizeof (struct A))
31 {
32 struct A a = { .a[0] = 10, .a[1] = 20 };
33 __builtin_memcpy (&x, &a, sizeof (x));
34 if (foo (0) != 10 || foo (1) != 20)
35 __builtin_abort ();
36 }
37 return 0;
38 }