[thirdparty/gcc.git] / gcc / testsuite / gcc.target / arc / mulsi3_highpart-2.c

/* { dg-do run } */
/* { dg-skip-if "ARC700 always has mpy option on" { arc700 } } */
/* { dg-skip-if "ARC600 doesn't have mpy instruction" { arc6xx } } */
/* { dg-options "-O2 -mmpy-option=0 -w" } */

#include <stdlib.h>

/* Hide value propagation from the optimizers.  */
static int
id (int i)
{
  asm ("": "+r" (i));
  return i;
}

static int
mulhigh (unsigned a, unsigned b)
{
  return (unsigned long long) a * b >> 32;
}

int
main (void)
{
  if (mulhigh (id (0x12345678), id (0x90abcdef)) != 0xa49a83e)
    abort ();
  return 0;
}

/* { dg-final { scan-assembler-not "mpyhu\[ \t\]" } } */
/* { dg-final { scan-assembler-not "@__muldi3" } } */
/* { dg-final { scan-assembler "@__umulsi3_highpart" } } */
Commit	Line	Data
0db7b137	1	/* { dg-do run } */
c867c39d CZ	2	/* { dg-skip-if "ARC700 always has mpy option on" { arc700 } } */
c867c39d CZ	3	/* { dg-skip-if "ARC600 doesn't have mpy instruction" { arc6xx } } */
d65485c5	4	/* { dg-options "-O2 -mmpy-option=0 -w" } */
0db7b137 JR	5
	6	#include <stdlib.h>
	7
	8	/* Hide value propagation from the optimizers. */
	9	static int
	10	id (int i)
	11	{
a7784956	12	asm ("": "+r" (i));
0db7b137 JR	13	return i;
	14	}
	15
	16	static int
	17	mulhigh (unsigned a, unsigned b)
	18	{
	19	return (unsigned long long) a * b >> 32;
	20	}
	21
	22	int
	23	main (void)
	24	{
	25	if (mulhigh (id (0x12345678), id (0x90abcdef)) != 0xa49a83e)
	26	abort ();
	27	return 0;
	28	}
	29
	30	/* { dg-final { scan-assembler-not "mpyhu\[ \t\]" } } */
	31	/* { dg-final { scan-assembler-not "@__muldi3" } } */
	32	/* { dg-final { scan-assembler "@__umulsi3_highpart" } } */