gcc/testsuite/gcc.dg/tree-ssa/pr82363.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O" } */
   3
   4 #if __SIZEOF_INT__ == 2
   5 #define int __INT32_TYPE__
   6 #endif
   7
   8 struct A
   9 {
  10   int b;
  11   int c;
  12   int d;
  13 };
  14
  15 struct E
  16 {
  17   int f;
  18   int g:18;
  19   struct A h;
  20 };
  21
  22 struct I
  23 {
  24   int b;
  25   int j;
  26   struct E k;
  27 };
  28
  29 int l, *m = &l;
  30
  31 struct A n;
  32 struct I o;
  33
  34 void __attribute__ ((noipa))
  35 test_l (void)
  36 {
  37   if (l != 1)
  38     __builtin_abort ();
  39 }
  40
  41 #undef int
  42
  43 int main ()
  44 {
  45   while (1)
  46     {
  47       struct I q = { 0, 0, {0, 0, {1, 1, 1}}}, p = q, r = p, *s = &q;
  48       if (p.k.h.c)
  49         o = p;
  50       *m = r.k.h.d;
  51       n = (*s).k.h;
  52       break;
  53     }
  54   test_l ();
  55   return 0;
  56 }