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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [pr27959.c] - Blame information for rev 867

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Line No. Rev Author Line
1 149 jeremybenn
/* PR middle-end/27959 */
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/* { dg-do run } */
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/* { dg-options "-O2" } */
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/* { dg-options "-O2 -mtune=z990" { target s390*-*-* } } */
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extern void abort (void);
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struct B
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{
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  unsigned int b1, b2, b3;
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  char b4;
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};
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struct C
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{
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  char c1;
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};
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struct D
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{
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  char *d1;
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  struct C **d2;
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  unsigned int d3;
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};
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void
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__attribute__((noinline))
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foo (void *x, struct B *y, unsigned int *z)
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{
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  if (x)
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    abort ();
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  if (y->b1 != 7 || y->b2 != 5 || y->b3 != 3 || y->b4)
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    abort ();
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  if (*z != 2)
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    abort ();
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}
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int
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__attribute__((noinline))
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baz (unsigned int *x, unsigned int y)
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{
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  asm volatile ("" : : "r" (&x), "r" (&y) : "memory");
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  return *x + y;
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}
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inline int bar (unsigned int *x, unsigned int y)
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{
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  if (y < *x)
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    return 0;
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  return baz (x, y);
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}
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unsigned int *
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__attribute__((noinline))
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test (struct D *x, unsigned int *y)
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{
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  struct B b;
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  unsigned int c;
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  bar (y, x->d3);
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  if ((*(x->d2))->c1)
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    c = ((unsigned char) x->d1[0]
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         + ((unsigned char) x->d1[1] << 8)
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         + ((unsigned char) x->d1[2] << 16)
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         + ((short) x->d1[3] << 24));
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  else
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    {
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      int d;
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      ((char *) &d)[0] = x->d1[0];
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      ((char *) &d)[1] = x->d1[1];
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      ((char *) &d)[2] = x->d1[2];
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      ((char *) &d)[3] = x->d1[3];
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      c = d;
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    }
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  b.b4 = 0;
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  b.b1 = c / 10000L % 10000;
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  b.b2 = c / 100 % 100;
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  b.b3 = c % 100;
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  foo (0, &b, y);
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  return y;
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}
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int
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main (void)
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{
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  unsigned int x = 900070503;
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  unsigned int y = 2;
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  struct C c = { 0 }, *cptr = &c;
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  struct D d = { (char *) &x, &cptr, 0 };
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  if (test (&d, &y) != &y)
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    abort ();
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  return 0;
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}

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