[thirdparty/gcc.git] / gcc / testsuite / gcc.dg / pr69047.c

/* { dg-do compile } */
/* { dg-options "-O -fdump-tree-forwprop4" } */

__UINT8_TYPE__
f(__UINT16_TYPE__ b)
{
  __UINT8_TYPE__ a;
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  __builtin_memcpy(&a, &b, sizeof a);
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
  __builtin_memcpy(&a, (char *)&b + sizeof a, sizeof a);
#else
  a = b;
#endif
  return a;
}

/* { dg-final { scan-tree-dump "_\[0-9\]+ = \\(\[^)\]+\\) b" "forwprop4" } } */
Commit	Line	Data
ebfa15ab	1	/* { dg-do compile } */
285fa338	2	/* { dg-options "-O -fdump-tree-forwprop4" } */
ebfa15ab RB	3
	4	__UINT8_TYPE__
	5	f(__UINT16_TYPE__ b)
	6	{
	7	__UINT8_TYPE__ a;
6f651bae	8	#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
ebfa15ab	9	__builtin_memcpy(&a, &b, sizeof a);
6f651bae	10	#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
ebfa15ab RB	11	__builtin_memcpy(&a, (char *)&b + sizeof a, sizeof a);
	12	#else
	13	a = b;
	14	#endif
	15	return a;
	16	}
	17
285fa338	18	/* { dg-final { scan-tree-dump "_\[0-9\]+ = \\(\[^)\]+\\) b" "forwprop4" } } */