gcc/testsuite/gcc.dg/pr33644.c

   1 /* PR rtl-optimization/33644 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -ftrapv" } */
   4
   5 extern char *bar (const char *);
   6
   7 int *m, *b;
   8
   9 void foo (void)
  10 {
  11   int *mv;
  12   int p;
  13   char a[17];
  14
  15   p = bar (a) - a;
  16   for (mv = m; mv < b; mv++)
  17     if (p && ((*mv  & 7) != p))
  18       *mv=0;
  19 }