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Merged
merged 1 commit into from
Nov 20, 2023
Merged

Port the runtime of #1897 #2044

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46 changes: 46 additions & 0 deletions ocaml/runtime/caml/simd.h
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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Max Slater, Jane Street */
/* */
/* Copyright 2023 Jane Street Group LLC */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/

/* SIMD vector instruction support */

#ifndef CAML_SIMD_H
#define CAML_SIMD_H

#include "mlvalues.h"

#if defined(_M_IX86_FP) || defined(__SSE2__) || defined(__SSE3__) || \
defined(__SSSE3__) || defined(__SSE4_1__) || defined(__SSE4_2__)
#define ARCH_SSE2
#endif

#if defined(__AVX__) || defined(__AVX2__)
#define ARCH_AVX
#endif

#ifdef ARCH_SSE2
#include <emmintrin.h>

#define Vec128_val(v) _mm_loadu_ps((const float*)Bp_val(v))
#define Vec128_vald(v) _mm_loadu_pd((const double*)Bp_val(v))
#define Vec128_vali(v) _mm_loadu_si128((const __m128i*)Bp_val(v))
#define Store_vec128_val(v,x) _mm_storeu_ps((float*)Bp_val(v), x)
#define Store_vec128_vald(v,x) _mm_storeu_pd((double*)Bp_val(v), x)
#define Store_vec128_vali(v,x) _mm_storeu_si128((__m128i*)Bp_val(v), x)

CAMLextern value caml_copy_vec128(__m128);
CAMLextern value caml_copy_vec128i(__m128i);
CAMLextern value caml_copy_vec128d(__m128d);
#endif

#endif /* CAML_SIMD_H */
40 changes: 40 additions & 0 deletions ocaml/runtime/simd.c
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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Max Slater, Jane Street */
/* */
/* Copyright 2023 Jane Street Group LLC */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/

#define CAML_INTERNALS

#include "caml/alloc.h"
#include "caml/simd.h"

#ifdef ARCH_SSE2

CAMLexport value caml_copy_vec128(__m128 v) {
value res = caml_alloc_small(2, Abstract_tag);
Store_vec128_val(res, v);
return res;
}

CAMLexport value caml_copy_vec128i(__m128i v) {
value res = caml_alloc_small(2, Abstract_tag);
Store_vec128_vali(res, v);
return res;
}

CAMLexport value caml_copy_vec128d(__m128d v) {
value res = caml_alloc_small(2, Abstract_tag);
Store_vec128_vald(res, v);
return res;
}

#endif