gcc/testsuite/gcc.dg/tree-ssa/pr93582-6.c

   1 /* PR tree-optimization/93582 */
   2 /* { dg-do compile { target int32 } } */
   3 /* { dg-options "-O2 -fdump-tree-fre1" } */
   4 /* { dg-final { scan-tree-dump "return 890118;" "fre1" { target le } } } */
   5 /* { dg-final { scan-tree-dump "return 447899;" "fre1" { target be } } } */
   6
   7 union U {
   8   struct S { int a : 16, b : 5, c : 10, d : 1; } s;
   9   struct T { int a : 8, b : 21, c : 3; } t;
  10 };
  11 struct A { char a[4]; union U u; };
  12 void bar (struct A *);
  13
  14 int
  15 foo (void)
  16 {
  17   struct A a;
  18   bar (&a);
  19   a.u.s.a = 1590;
  20   a.u.s.b = -11;
  21   a.u.s.c = 620;
  22   a.u.s.d = -1;
  23   return a.u.t.b;
  24 }