gcc/testsuite/gcc.dg/pr81227.c

   1 /* Copy of gcc.c-torture/compile/pr80443.c  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fwrapv" } */
   4
   5 struct S { int a : 1; } b, c;
   6 signed char d, e, f;
   7
   8 void
   9 foo ()
  10 {
  11   while (f)
  12     {
  13       signed char g = b.a;
  14       if (g)
  15         b.a = ~(1 + (d || c.a));
  16       if (b.a < g && b.a)
  17         g = 0;
  18       if (b.a > c.a)
  19         b.a = g;
  20       c.a = e;
  21     }
  22 }