[thirdparty/gcc.git] / gcc / testsuite / gcc.dg / tree-ssa / pr93582-10.c

/* PR tree-optimization/93582 */
/* { dg-do compile { target int32 } } */
/* { dg-options "-O2 -fdump-tree-fre1" } */
/* { dg-final { scan-tree-dump "return 72876566;" "fre1" { target le } } } */
/* { dg-final { scan-tree-dump "return 559957376;" "fre1" { target be } } } */

union U {
  struct S { int a : 12, b : 5, c : 10, d : 5; } s;
  unsigned int i;
};
struct A { char a[12]; union U u; };
void bar (struct A *);

unsigned
foo (void)
{
  struct A a;
  bar (&a);
  a.u.s.a = 1590;
  a.u.s.c = -404;
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define M 0x67e0a5f
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define M 0xa5f067e0
#else
#define M 0
#endif
  return a.u.i & M;
}
Commit	Line	Data
b07e4e7c JJ	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 72876566;" "fre1" { target le } } } */
	5	/* { dg-final { scan-tree-dump "return 559957376;" "fre1" { target be } } } */
	6
	7	union U {
	8	struct S { int a : 12, b : 5, c : 10, d : 5; } s;
	9	unsigned int i;
	10	};
	11	struct A { char a[12]; union U u; };
	12	void bar (struct A *);
	13
	14	unsigned
	15	foo (void)
	16	{
	17	struct A a;
	18	bar (&a);
	19	a.u.s.a = 1590;
	20	a.u.s.c = -404;
	21	#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
	22	#define M 0x67e0a5f
	23	#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	24	#define M 0xa5f067e0
	25	#else
	26	#define M 0
	27	#endif
	28	return a.u.i & M;
	29	}