gcc/testsuite/gcc.dg/pr23818.c

   1 /* PR tree-optimization/23818 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2 -fno-tree-dominator-opts" } */
   4
   5 #include <stdarg.h>
   6
   7 extern void abort (void);
   8
   9 void
  10 foo (int p[100], int k, ...)
  11 {
  12   int j, *q;
  13   va_list ap;
  14
  15   va_start (ap, k);
  16   q = va_arg (ap, int *);
  17   for (j = 0; j < 100; j++)
  18     q[j] = p[j] + 10;
  19   va_end(ap);
  20 }
  21
  22 int
  23 main (void)
  24 {
  25   int buf[100], buf2[100], i;
  26   for (i = 0; i < 100; i++)
  27     buf[i] = i + 1;
  28   foo (buf, 0, buf2);
  29   for (i = 0; i < 100; i++)
  30     if (buf2[i] != buf[i] + 10)
  31       abort ();
  32   return 0;
  33 }