gcc/testsuite/gcc.dg/pr30643.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3 /* { dg-final { scan-assembler-not "undefined" } } */
   4
   5 /* Make sure we optimize all calls away.  */
   6
   7 extern void undefined (void);
   8 struct s { int a, b; };
   9 void bar (struct s *ps,  int *p, int *__restrict__ rp, int *__restrict__ rq)
  10 {
  11   ps->a = 0;
  12   ps->b = 1;
  13   if (ps->a != 0)
  14     undefined ();
  15   p[0] = 0;
  16   p[1] = 1;
  17   if (p[0] != 0)
  18     undefined ();
  19   rp[0] = 0;
  20   rq[0] = 1;
  21   if (rp[0] != 0)
  22     undefined ();
  23 }
  24 int main (void) {
  25   return 0;
  26 }