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target/riscv: Convert RV32D insns to decodetree

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Backports commit 97f8b49372d73aab4d172df4ea297d7f3ce4e02e from qemu
This commit is contained in:
Bastian Koppelmann 2019-03-18 16:45:12 -04:00 committed by Lioncash
parent d8d107ec85
commit 71f2ed2959
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GPG key ID: 4E3C3CC1031BA9C7
3 changed files with 441 additions and 0 deletions
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28
qemu/target/riscv/insn32.decode
View file

@ -154,3 +154,31 @@ fclass_s 1110000 00000 ..... 001 ..... 1010011 @r2
fcvt_s_w 1101000 00000 ..... ... ..... 1010011 @r2_rm
fcvt_s_wu 1101000 00001 ..... ... ..... 1010011 @r2_rm
fmv_w_x 1111000 00000 ..... 000 ..... 1010011 @r2
# *** RV32D Standard Extension ***
fld ............ ..... 011 ..... 0000111 @i
fsd ....... ..... ..... 011 ..... 0100111 @s
fmadd_d ..... 01 ..... ..... ... ..... 1000011 @r4_rm
fmsub_d ..... 01 ..... ..... ... ..... 1000111 @r4_rm
fnmsub_d ..... 01 ..... ..... ... ..... 1001011 @r4_rm
fnmadd_d ..... 01 ..... ..... ... ..... 1001111 @r4_rm
fadd_d 0000001 ..... ..... ... ..... 1010011 @r_rm
fsub_d 0000101 ..... ..... ... ..... 1010011 @r_rm
fmul_d 0001001 ..... ..... ... ..... 1010011 @r_rm
fdiv_d 0001101 ..... ..... ... ..... 1010011 @r_rm
fsqrt_d 0101101 00000 ..... ... ..... 1010011 @r2_rm
fsgnj_d 0010001 ..... ..... 000 ..... 1010011 @r
fsgnjn_d 0010001 ..... ..... 001 ..... 1010011 @r
fsgnjx_d 0010001 ..... ..... 010 ..... 1010011 @r
fmin_d 0010101 ..... ..... 000 ..... 1010011 @r
fmax_d 0010101 ..... ..... 001 ..... 1010011 @r
fcvt_s_d 0100000 00001 ..... ... ..... 1010011 @r2_rm
fcvt_d_s 0100001 00000 ..... ... ..... 1010011 @r2_rm
feq_d 1010001 ..... ..... 010 ..... 1010011 @r
flt_d 1010001 ..... ..... 001 ..... 1010011 @r
fle_d 1010001 ..... ..... 000 ..... 1010011 @r
fclass_d 1110001 00000 ..... 001 ..... 1010011 @r2
fcvt_w_d 1100001 00000 ..... ... ..... 1010011 @r2_rm
fcvt_wu_d 1100001 00001 ..... ... ..... 1010011 @r2_rm
fcvt_d_w 1101001 00000 ..... ... ..... 1010011 @r2_rm
fcvt_d_wu 1101001 00001 ..... ... ..... 1010011 @r2_rm

412
qemu/target/riscv/insn_trans/trans_rvd.inc.c Normal file
View file

@ -0,0 +1,412 @@
/*
* RISC-V translation routines for the RV64D Standard Extension.
*
* Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
* Copyright (c) 2018 Peer Adelt, peer.adelt@hni.uni-paderborn.de
* Bastian Koppelmann, kbastian@mail.uni-paderborn.de
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
static bool trans_fld(DisasContext *ctx, arg_fld *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_get_gpr(ctx, t0, a->rs1);
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
tcg_gen_addi_tl(tcg_ctx, t0, t0, a->imm);
tcg_gen_qemu_ld_i64(ctx->uc, tcg_ctx->cpu_fpr_risc[a->rd], t0, ctx->mem_idx, MO_TEQ);
mark_fs_dirty(ctx);
tcg_temp_free(tcg_ctx, t0);
return true;
}
static bool trans_fsd(DisasContext *ctx, arg_fsd *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_get_gpr(ctx, t0, a->rs1);
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
tcg_gen_addi_tl(tcg_ctx, t0, t0, a->imm);
tcg_gen_qemu_st_i64(ctx->uc, tcg_ctx->cpu_fpr_risc[a->rs2], t0, ctx->mem_idx, MO_TEQ);
mark_fs_dirty(ctx);
tcg_temp_free(tcg_ctx, t0);
return true;
}
static bool trans_fmadd_d(DisasContext *ctx, arg_fmadd_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fmadd_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1],
tcg_ctx->cpu_fpr_risc[a->rs2], tcg_ctx->cpu_fpr_risc[a->rs3]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fmsub_d(DisasContext *ctx, arg_fmsub_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fmsub_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1],
tcg_ctx->cpu_fpr_risc[a->rs2], tcg_ctx->cpu_fpr_risc[a->rs3]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fnmsub_d(DisasContext *ctx, arg_fnmsub_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fnmsub_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1],
tcg_ctx->cpu_fpr_risc[a->rs2], tcg_ctx->cpu_fpr_risc[a->rs3]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fnmadd_d(DisasContext *ctx, arg_fnmadd_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fnmadd_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1],
tcg_ctx->cpu_fpr_risc[a->rs2], tcg_ctx->cpu_fpr_risc[a->rs3]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fadd_d(DisasContext *ctx, arg_fadd_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fadd_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env,
tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fsub_d(DisasContext *ctx, arg_fsub_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fsub_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env,
tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fmul_d(DisasContext *ctx, arg_fmul_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fmul_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env,
tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fdiv_d(DisasContext *ctx, arg_fdiv_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fdiv_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env,
tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fsqrt_d(DisasContext *ctx, arg_fsqrt_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fsqrt_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fsgnj_d(DisasContext *ctx, arg_fsgnj_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
if (a->rs1 == a->rs2) { /* FMOV */
tcg_gen_mov_i64(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_fpr_risc[a->rs1]);
} else {
tcg_gen_deposit_i64(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_fpr_risc[a->rs2],
tcg_ctx->cpu_fpr_risc[a->rs1], 0, 63);
}
mark_fs_dirty(ctx);
return true;
}
static bool trans_fsgnjn_d(DisasContext *ctx, arg_fsgnjn_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
if (a->rs1 == a->rs2) { /* FNEG */
tcg_gen_xori_i64(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_fpr_risc[a->rs1], INT64_MIN);
} else {
TCGv_i64 t0 = tcg_temp_new_i64(tcg_ctx);
tcg_gen_not_i64(tcg_ctx, t0, tcg_ctx->cpu_fpr_risc[a->rs2]);
tcg_gen_deposit_i64(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], t0, tcg_ctx->cpu_fpr_risc[a->rs1], 0, 63);
tcg_temp_free_i64(tcg_ctx, t0);
}
mark_fs_dirty(ctx);
return true;
}
static bool trans_fsgnjx_d(DisasContext *ctx, arg_fsgnjx_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
if (a->rs1 == a->rs2) { /* FABS */
tcg_gen_andi_i64(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_fpr_risc[a->rs1], ~INT64_MIN);
} else {
TCGv_i64 t0 = tcg_temp_new_i64(tcg_ctx);
tcg_gen_andi_i64(tcg_ctx, t0, tcg_ctx->cpu_fpr_risc[a->rs2], INT64_MIN);
tcg_gen_xor_i64(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_fpr_risc[a->rs1], t0);
tcg_temp_free_i64(tcg_ctx, t0);
}
mark_fs_dirty(ctx);
return true;
}
static bool trans_fmin_d(DisasContext *ctx, arg_fmin_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_helper_fmin_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env,
tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fmax_d(DisasContext *ctx, arg_fmax_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_helper_fmax_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env,
tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fcvt_s_d(DisasContext *ctx, arg_fcvt_s_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fcvt_s_d(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fcvt_d_s(DisasContext *ctx, arg_fcvt_d_s *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
gen_set_rm(ctx, a->rm);
gen_helper_fcvt_d_s(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1]);
mark_fs_dirty(ctx);
return true;
}
static bool trans_feq_d(DisasContext *ctx, arg_feq_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_helper_feq_d(tcg_ctx, t0, tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
gen_set_gpr(ctx, a->rd, t0);
tcg_temp_free(tcg_ctx, t0);
return true;
}
static bool trans_flt_d(DisasContext *ctx, arg_flt_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_helper_flt_d(tcg_ctx, t0, tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
gen_set_gpr(ctx, a->rd, t0);
tcg_temp_free(tcg_ctx, t0);
return true;
}
static bool trans_fle_d(DisasContext *ctx, arg_fle_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_helper_fle_d(tcg_ctx, t0, tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1], tcg_ctx->cpu_fpr_risc[a->rs2]);
gen_set_gpr(ctx, a->rd, t0);
tcg_temp_free(tcg_ctx, t0);
return true;
}
static bool trans_fclass_d(DisasContext *ctx, arg_fclass_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_helper_fclass_d(tcg_ctx, t0, tcg_ctx->cpu_fpr_risc[a->rs1]);
gen_set_gpr(ctx, a->rd, t0);
tcg_temp_free(tcg_ctx, t0);
return true;
}
static bool trans_fcvt_w_d(DisasContext *ctx, arg_fcvt_w_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_set_rm(ctx, a->rm);
gen_helper_fcvt_w_d(tcg_ctx, t0, tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1]);
gen_set_gpr(ctx, a->rd, t0);
tcg_temp_free(tcg_ctx, t0);
return true;
}
static bool trans_fcvt_wu_d(DisasContext *ctx, arg_fcvt_wu_d *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_set_rm(ctx, a->rm);
gen_helper_fcvt_wu_d(tcg_ctx, t0, tcg_ctx->cpu_env, tcg_ctx->cpu_fpr_risc[a->rs1]);
gen_set_gpr(ctx, a->rd, t0);
tcg_temp_free(tcg_ctx, t0);
return true;
}
static bool trans_fcvt_d_w(DisasContext *ctx, arg_fcvt_d_w *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_get_gpr(ctx, t0, a->rs1);
gen_set_rm(ctx, a->rm);
gen_helper_fcvt_d_w(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, t0);
tcg_temp_free(tcg_ctx, t0);
mark_fs_dirty(ctx);
return true;
}
static bool trans_fcvt_d_wu(DisasContext *ctx, arg_fcvt_d_wu *a)
{
TCGContext *tcg_ctx = ctx->uc->tcg_ctx;
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVD);
TCGv t0 = tcg_temp_new(tcg_ctx);
gen_get_gpr(ctx, t0, a->rs1);
gen_set_rm(ctx, a->rm);
gen_helper_fcvt_d_wu(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_env, t0);
tcg_temp_free(tcg_ctx, t0);
mark_fs_dirty(ctx);
return true;
}

1
qemu/target/riscv/translate.c
View file

@ -1787,6 +1787,7 @@ bool decode_insn32(DisasContext *ctx, uint32_t insn);
#include "insn_trans/trans_rvm.inc.c"
#include "insn_trans/trans_rva.inc.c"
#include "insn_trans/trans_rvf.inc.c"
#include "insn_trans/trans_rvd.inc.c"
static void decode_RV32_64G(DisasContext *ctx)
{