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/* { dg-do run } */
/* { dg-options "-mavx512f -O2 -std=c99" } */
/* { dg-require-effective-target avx512f } */
/* { dg-require-effective-target c99_runtime } */
#include "avx512f-check.h"
#include <math.h>
union fp_int_t
{
long long int int_val;
double fp_val;
};
double
get_norm_mant (double source, int signctrl, int interv)
{
long long src, sign, exp, fraction;
union fp_int_t bin_conv;
bin_conv.fp_val = source;
src = bin_conv.int_val;
sign = (signctrl & 0x1) ? 0 : (src >> 63);
exp = (src & 0x7ff0000000000000) >> 52;
fraction = (src & 0xfffffffffffff);
if (isnan (source))
return signbit (source) ? -NAN : NAN;
if (source == 0.0 || source == -0.0 || isinf (source))
return sign ? -1.0 : 1.0;
if (signbit (source) && (signctrl & 0x2))
return -NAN;
if (!isnormal (source))
{
src = (src & 0xfff7ffffffffffff);
exp = 0x3ff;
while (!(src & 0x8000000000000))
{
src += fraction & 0x8000000000000;
fraction = fraction << 1;
exp--;
}
}
switch (interv)
{
case 0:
exp = 0x3ff;
break;
case 1:
exp = ((exp - 0x3ff) & 0x1) ? 0x3fe : 0x3ff;
break;
case 2:
exp = 0x3fe;
break;
case 3:
exp = (fraction & 0x8000000000000) ? 0x3fe : 0x3ff;
break;
default:
abort ();
}
bin_conv.int_val = (sign << 63) | (exp << 52) | fraction;
return bin_conv.fp_val;
}
static void
compute_vgetmantsd (double *r, double *s1, double *s2, int interv,
int signctrl)
{
r[0] = get_norm_mant (s2[0], signctrl, interv);
r[1] = s1[1];
}
static void
avx512f_test (void)
{
union128d res1, src1, src2;
double res_ref[2];
int interv = _MM_MANT_NORM_p5_1;
int signctrl = _MM_MANT_SIGN_src;
src1.x = _mm_set_pd (-3.0, 111.111);
src2.x = _mm_set_pd (222.222, -2.0);
res1.x = _mm_getmant_sd (src1.x, src2.x, interv, signctrl);
compute_vgetmantsd (res_ref, src1.a, src2.a, interv, signctrl);
if (check_union128d (res1, res_ref))
abort ();
}
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