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#ifndef AMX_HELPER_H_INCLUDED
#define AMX_HELPER_H_INCLUDED
#if defined(AMX_FP16) || defined(AMX_COMPLEX)
#include <immintrin.h>
#include <xmmintrin.h>
#endif
#include "amx-check.h"
typedef union
{
_Float16 f16;
uint16_t u;
} union16f_uw;
#if defined(AMX_FP16) || defined(AMX_COMPLEX)
/* Transformation functions between fp16/float */
static uint16_t make_f32_fp16 (float f)
{
union16f_uw tmp;
__m128 b = _mm_set_ss (f);
__m128h a;
tmp.f16 = _mm_cvtsh_h (_mm_cvtss_sh (a, b));
return tmp.u;
}
static float make_fp16_f32 (uint16_t fp)
{
union16f_uw tmp;
tmp.u = fp;
__m128h b = _mm_set_sh (tmp.f16);
__m128 a;
return _mm_cvtss_f32 (_mm_cvtsh_ss (a, b));
}
/* Init tile buffer with fp16 pairs */
void init_fp16_max_tile_buffer (uint8_t* buf)
{
int i, j;
uint16_t* ptr = (uint16_t *) buf;
for (i = 0; i < 16; i++)
for (j = 0; j < 32; j++)
{
float f = 2.5f * i + 1.25f * j;
ptr[i * 32 + j] = make_f32_fp16 (f);
}
}
/* Init tile fp16 pair buffer with zero */
void init_fp16_max_tile_zero_buffer (uint8_t* buf)
{
int i, j;
uint16_t* ptr = (uint16_t *) buf;
for (i = 0; i < 16; i++)
for (j = 0; j < 32; j++)
ptr[i * 32 + j] = make_f32_fp16 (0.0f);
}
#endif
#endif
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