gcc/testsuite/gcc.target/i386/avx512fp16-vrndscalesh-1b.c

/* { dg-do run { target avx512fp16 } } */
/* { dg-options "-O2 -mavx512fp16 -mavx512dq" } */


#define AVX512FP16
#include "avx512fp16-helper.h"

#define N_ELEMS 8

void NOINLINE
emulate_roundscale_sh(V512 * dest, V512 op1,
	       __mmask8 k, int zero_mask)
{
  V512 v1, v2, v3, v4, v5, v6, v7, v8;
  V512 t1,t2;
  int i;

  unpack_ph_2twops(op1, &v1, &v2);
  unpack_ph_2twops(*dest, &v7, &v8);
  t1.zmm = _mm512_maskz_roundscale_ps (0xffff, v1.zmm, 0x14);
  t2.zmm = _mm512_maskz_roundscale_ps (0xffff, v2.zmm, 0x14);

  if ((k&1) || !k)
    v5.f32[0] = t1.f32[0]; 
  else if (zero_mask)
    v5.f32[0] = 0;
  else
    v5.f32[0] = v7.f32[0];

  for (i = 1; i < 8; i++)
    v5.f32[i] = v1.f32[i];

  *dest = pack_twops_2ph(v5, v6);
}

void
test_512 (void)
{
  V512 res;
  V512 exp;

  init_src();

  emulate_roundscale_sh(&exp, src1,  0x1, 0);
  res.xmmh[0] = _mm_roundscale_round_sh(src1.xmmh[0], src1.xmmh[0], 0x1, 0x08);
  check_results(&res, &exp, N_ELEMS, "_mm_roundscale_round_sh");

  init_dest(&res, &exp);
  emulate_roundscale_sh(&exp, src1,  0x1, 0);
  res.xmmh[0] = _mm_mask_roundscale_round_sh(res.xmmh[0],
					     0x1, src1.xmmh[0], src1.xmmh[0], 0x1, 0x08);
  check_results(&res, &exp, N_ELEMS, "_mm_mask_roundscale_round_sh");

  emulate_roundscale_sh(&exp, src1,  0x3, 1);
  res.xmmh[0] = _mm_maskz_roundscale_round_sh(0x3, src1.xmmh[0], src1.xmmh[0], 0x1, 0x08);
  check_results(&res, &exp, N_ELEMS, "_mm_maskz_roundscale_round_sh");


  if (n_errs != 0)
    abort ();
}