gcc/testsuite/gcc.dg/torture/pr49518.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wno-aggressive-loop-optimizations" } */
   3
   4 int a, b;
   5 struct S { unsigned int s, t, u; } c, d = { 0, 1, 0 };
   6
   7 void
   8 test (unsigned char z)
   9 {
  10   char e[] = {0, 0, 0, 0, 1};
  11   for (c.s = 1; c.s; c.s++)
  12     {
  13       b = e[c.s];
  14       if (a)
  15         break;
  16       b = z >= c.u;
  17       if (d.t)
  18         break;
  19     }
  20 }