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deps: V8: cherry-pick 77d515484864
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Original commit message:

    [riscv64] Move explicit specialization into .cc file

    Building with Gcc-10 causes error "explicit specialization in non-namespace scope".
    This change fixes it.

    Bug: v8:12649

    Change-Id: I36b2b042b336c2dfd32ba5541fdbbdb8dc8b4fd7
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3473997
    Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
    Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
    Cr-Commit-Position: refs/heads/main@{#79185}

Refs: v8/v8@77d5154

PR-URL: #42067
Refs: v8/v8@b663343
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Mary Marchini <oss@mmarchini.me>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Stewart X Addison <sxa@redhat.com>
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@luyahan @danielleadams
luyahan authored and danielleadams committed Apr 24, 2022
1 parent 3f09a6d commit 396240b
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158 changes: 158 additions & 0 deletions deps/v8/src/execution/riscv64/simulator-riscv64.cc
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Expand Up @@ -60,6 +60,164 @@
#include "src/runtime/runtime-utils.h"
#include "src/utils/ostreams.h"

// RVV
// The following code about RVV was based from:
// https://github.com/riscv/riscv-isa-sim
// Copyright (c) 2010-2017, The Regents of the University of California
// (Regents). All Rights Reserved.

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. Neither the name of the Regents nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.

// IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
// HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
// MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
template <uint64_t N>
struct type_usew_t;
template <>
struct type_usew_t<8> {
using type = uint8_t;
};

template <>
struct type_usew_t<16> {
using type = uint16_t;
};

template <>
struct type_usew_t<32> {
using type = uint32_t;
};

template <>
struct type_usew_t<64> {
using type = uint64_t;
};

template <>
struct type_usew_t<128> {
using type = __uint128_t;
};
template <uint64_t N>
struct type_sew_t;

template <>
struct type_sew_t<8> {
using type = int8_t;
};

template <>
struct type_sew_t<16> {
using type = int16_t;
};

template <>
struct type_sew_t<32> {
using type = int32_t;
};

template <>
struct type_sew_t<64> {
using type = int64_t;
};

template <>
struct type_sew_t<128> {
using type = __int128_t;
};

#define VV_PARAMS(x) \
type_sew_t<x>::type& vd = \
Rvvelt<type_sew_t<x>::type>(rvv_vd_reg(), i, true); \
type_sew_t<x>::type vs1 = Rvvelt<type_sew_t<x>::type>(rvv_vs1_reg(), i); \
type_sew_t<x>::type vs2 = Rvvelt<type_sew_t<x>::type>(rvv_vs2_reg(), i);

#define VV_UPARAMS(x) \
type_usew_t<x>::type& vd = \
Rvvelt<type_usew_t<x>::type>(rvv_vd_reg(), i, true); \
type_usew_t<x>::type vs1 = Rvvelt<type_usew_t<x>::type>(rvv_vs1_reg(), i); \
type_usew_t<x>::type vs2 = Rvvelt<type_usew_t<x>::type>(rvv_vs2_reg(), i);

#define VX_PARAMS(x) \
type_sew_t<x>::type& vd = \
Rvvelt<type_sew_t<x>::type>(rvv_vd_reg(), i, true); \
type_sew_t<x>::type rs1 = (type_sew_t<x>::type)(get_register(rs1_reg())); \
type_sew_t<x>::type vs2 = Rvvelt<type_sew_t<x>::type>(rvv_vs2_reg(), i);

#define VX_UPARAMS(x) \
type_usew_t<x>::type& vd = \
Rvvelt<type_usew_t<x>::type>(rvv_vd_reg(), i, true); \
type_usew_t<x>::type rs1 = (type_usew_t<x>::type)(get_register(rs1_reg())); \
type_usew_t<x>::type vs2 = Rvvelt<type_usew_t<x>::type>(rvv_vs2_reg(), i);

#define VI_PARAMS(x) \
type_sew_t<x>::type& vd = \
Rvvelt<type_sew_t<x>::type>(rvv_vd_reg(), i, true); \
type_sew_t<x>::type simm5 = (type_sew_t<x>::type)(instr_.RvvSimm5()); \
type_sew_t<x>::type vs2 = Rvvelt<type_sew_t<x>::type>(rvv_vs2_reg(), i);

#define VI_UPARAMS(x) \
type_usew_t<x>::type& vd = \
Rvvelt<type_usew_t<x>::type>(rvv_vd_reg(), i, true); \
type_usew_t<x>::type uimm5 = (type_usew_t<x>::type)(instr_.RvvUimm5()); \
type_usew_t<x>::type vs2 = Rvvelt<type_usew_t<x>::type>(rvv_vs2_reg(), i);

#define VN_PARAMS(x) \
constexpr int half_x = x >> 1; \
type_sew_t<half_x>::type& vd = \
Rvvelt<type_sew_t<half_x>::type>(rvv_vd_reg(), i, true); \
type_sew_t<x>::type uimm5 = (type_sew_t<x>::type)(instr_.RvvUimm5()); \
type_sew_t<x>::type vs2 = Rvvelt<type_sew_t<x>::type>(rvv_vs2_reg(), i);

#define VN_UPARAMS(x) \
constexpr int half_x = x >> 1; \
type_usew_t<half_x>::type& vd = \
Rvvelt<type_usew_t<half_x>::type>(rvv_vd_reg(), i, true); \
type_usew_t<x>::type uimm5 = (type_usew_t<x>::type)(instr_.RvvUimm5()); \
type_sew_t<x>::type vs2 = Rvvelt<type_sew_t<x>::type>(rvv_vs2_reg(), i);

#define VXI_PARAMS(x) \
type_sew_t<x>::type& vd = \
Rvvelt<type_sew_t<x>::type>(rvv_vd_reg(), i, true); \
type_sew_t<x>::type vs1 = Rvvelt<type_sew_t<x>::type>(rvv_vs1_reg(), i); \
type_sew_t<x>::type vs2 = Rvvelt<type_sew_t<x>::type>(rvv_vs2_reg(), i); \
type_sew_t<x>::type rs1 = (type_sew_t<x>::type)(get_register(rs1_reg())); \
type_sew_t<x>::type simm5 = (type_sew_t<x>::type)(instr_.RvvSimm5());

#define VI_XI_SLIDEDOWN_PARAMS(x, off) \
auto& vd = Rvvelt<type_sew_t<x>::type>(rvv_vd_reg(), i, true); \
auto vs2 = Rvvelt<type_sew_t<x>::type>(rvv_vs2_reg(), i + off);

#define VI_XI_SLIDEUP_PARAMS(x, offset) \
auto& vd = Rvvelt<type_sew_t<x>::type>(rvv_vd_reg(), i, true); \
auto vs2 = Rvvelt<type_sew_t<x>::type>(rvv_vs2_reg(), i - offset);

/* Vector Integer Extension */
#define VI_VIE_PARAMS(x, scale) \
if ((x / scale) < 8) UNREACHABLE(); \
auto& vd = Rvvelt<type_sew_t<x>::type>(rvv_vd_reg(), i, true); \
auto vs2 = Rvvelt<type_sew_t<x / scale>::type>(rvv_vs2_reg(), i);

#define VI_VIE_UPARAMS(x, scale) \
if ((x / scale) < 8) UNREACHABLE(); \
auto& vd = Rvvelt<type_sew_t<x>::type>(rvv_vd_reg(), i, true); \
auto vs2 = Rvvelt<type_usew_t<x / scale>::type>(rvv_vs2_reg(), i);

namespace v8 {
namespace internal {

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