gcc/testsuite/gcc.dg/pr87415.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2" } */
   3
   4 struct A
   5 {
   6   int b:1;
   7 };
   8
   9 int d;
  10
  11 int main ()
  12 {
  13   struct A e = { 0 };
  14   if (!d)
  15     e.b = -1;
  16   if (!e.b)
  17     __builtin_abort ();
  18
  19   return 0;
  20 }