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target/loongarch: Add floating point load/store instruction translation 

This includes:
- FLD.{S/D}, FST.{S/D}
- FLDX.{S/D}, FSTX.{S/D}
- FLD{GT/LE}.{S/D}, FST{GT/LE}.{S/D}

Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220606124333.2060567-15-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Song Gao 2022-06-06 20:43:04 +08:00 committed by Richard Henderson
parent b7dabd5624
commit e616bdfd01
3 changed files with 178 additions and 0 deletions
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153
target/loongarch/insn_trans/trans_fmemory.c.inc Normal file
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@ -0,0 +1,153 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (c) 2021 Loongson Technology Corporation Limited
*/
static void maybe_nanbox_load(TCGv freg, MemOp mop)
{
if ((mop & MO_SIZE) == MO_32) {
gen_nanbox_s(freg, freg);
}
}
static bool gen_fload_i(DisasContext *ctx, arg_fr_i *a, MemOp mop)
{
TCGv addr = gpr_src(ctx, a->rj, EXT_NONE);
TCGv temp = NULL;
if (a->imm) {
temp = tcg_temp_new();
tcg_gen_addi_tl(temp, addr, a->imm);
addr = temp;
}
tcg_gen_qemu_ld_tl(cpu_fpr[a->fd], addr, ctx->mem_idx, mop);
maybe_nanbox_load(cpu_fpr[a->fd], mop);
if (temp) {
tcg_temp_free(temp);
}
return true;
}
static bool gen_fstore_i(DisasContext *ctx, arg_fr_i *a, MemOp mop)
{
TCGv addr = gpr_src(ctx, a->rj, EXT_NONE);
TCGv temp = NULL;
if (a->imm) {
temp = tcg_temp_new();
tcg_gen_addi_tl(temp, addr, a->imm);
addr = temp;
}
tcg_gen_qemu_st_tl(cpu_fpr[a->fd], addr, ctx->mem_idx, mop);
if (temp) {
tcg_temp_free(temp);
}
return true;
}
static bool gen_floadx(DisasContext *ctx, arg_frr *a, MemOp mop)
{
TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE);
TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE);
TCGv addr = tcg_temp_new();
tcg_gen_add_tl(addr, src1, src2);
tcg_gen_qemu_ld_tl(cpu_fpr[a->fd], addr, ctx->mem_idx, mop);
maybe_nanbox_load(cpu_fpr[a->fd], mop);
tcg_temp_free(addr);
return true;
}
static bool gen_fstorex(DisasContext *ctx, arg_frr *a, MemOp mop)
{
TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE);
TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE);
TCGv addr = tcg_temp_new();
tcg_gen_add_tl(addr, src1, src2);
tcg_gen_qemu_st_tl(cpu_fpr[a->fd], addr, ctx->mem_idx, mop);
tcg_temp_free(addr);
return true;
}
static bool gen_fload_gt(DisasContext *ctx, arg_frr *a, MemOp mop)
{
TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE);
TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE);
TCGv addr = tcg_temp_new();
gen_helper_asrtgt_d(cpu_env, src1, src2);
tcg_gen_add_tl(addr, src1, src2);
tcg_gen_qemu_ld_tl(cpu_fpr[a->fd], addr, ctx->mem_idx, mop);
maybe_nanbox_load(cpu_fpr[a->fd], mop);
tcg_temp_free(addr);
return true;
}
static bool gen_fstore_gt(DisasContext *ctx, arg_frr *a, MemOp mop)
{
TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE);
TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE);
TCGv addr = tcg_temp_new();
gen_helper_asrtgt_d(cpu_env, src1, src2);
tcg_gen_add_tl(addr, src1, src2);
tcg_gen_qemu_st_tl(cpu_fpr[a->fd], addr, ctx->mem_idx, mop);
tcg_temp_free(addr);
return true;
}
static bool gen_fload_le(DisasContext *ctx, arg_frr *a, MemOp mop)
{
TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE);
TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE);
TCGv addr = tcg_temp_new();
gen_helper_asrtle_d(cpu_env, src1, src2);
tcg_gen_add_tl(addr, src1, src2);
tcg_gen_qemu_ld_tl(cpu_fpr[a->fd], addr, ctx->mem_idx, mop);
maybe_nanbox_load(cpu_fpr[a->fd], mop);
tcg_temp_free(addr);
return true;
}
static bool gen_fstore_le(DisasContext *ctx, arg_frr *a, MemOp mop)
{
TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE);
TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE);
TCGv addr = tcg_temp_new();
gen_helper_asrtle_d(cpu_env, src1, src2);
tcg_gen_add_tl(addr, src1, src2);
tcg_gen_qemu_st_tl(cpu_fpr[a->fd], addr, ctx->mem_idx, mop);
tcg_temp_free(addr);
return true;
}
TRANS(fld_s, gen_fload_i, MO_TEUL)
TRANS(fst_s, gen_fstore_i, MO_TEUL)
TRANS(fld_d, gen_fload_i, MO_TEUQ)
TRANS(fst_d, gen_fstore_i, MO_TEUQ)
TRANS(fldx_s, gen_floadx, MO_TEUL)
TRANS(fldx_d, gen_floadx, MO_TEUQ)
TRANS(fstx_s, gen_fstorex, MO_TEUL)
TRANS(fstx_d, gen_fstorex, MO_TEUQ)
TRANS(fldgt_s, gen_fload_gt, MO_TEUL)
TRANS(fldgt_d, gen_fload_gt, MO_TEUQ)
TRANS(fldle_s, gen_fload_le, MO_TEUL)
TRANS(fldle_d, gen_fload_le, MO_TEUQ)
TRANS(fstgt_s, gen_fstore_gt, MO_TEUL)
TRANS(fstgt_d, gen_fstore_gt, MO_TEUQ)
TRANS(fstle_s, gen_fstore_le, MO_TEUL)
TRANS(fstle_d, gen_fstore_le, MO_TEUQ)

24
target/loongarch/insns.decode
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@ -36,6 +36,8 @@
&fc fd cj
&cr cd rj
&rc rd cj
&frr fd rj rk
&fr_i fd rj imm
#
# Formats
@ -70,6 +72,8 @@
@fc .... ........ ..... ..... .. cj:3 fd:5 &fc
@cr .... ........ ..... ..... rj:5 .. cd:3 &cr
@rc .... ........ ..... ..... .. cj:3 rd:5 &rc
@frr .... ........ ..... rk:5 rj:5 fd:5 &frr
@fr_i12 .... ...... imm:s12 rj:5 fd:5 &fr_i
#
# Fixed point arithmetic operation instruction
@ -385,3 +389,23 @@ movfr2cf 0000 00010001 01001 10100 ..... 00 ... @cf
movcf2fr 0000 00010001 01001 10101 00 ... ..... @fc
movgr2cf 0000 00010001 01001 10110 ..... 00 ... @cr
movcf2gr 0000 00010001 01001 10111 00 ... ..... @rc
#
# Floating point load/store instruction
#
fld_s 0010 101100 ............ ..... ..... @fr_i12
fst_s 0010 101101 ............ ..... ..... @fr_i12
fld_d 0010 101110 ............ ..... ..... @fr_i12
fst_d 0010 101111 ............ ..... ..... @fr_i12
fldx_s 0011 10000011 00000 ..... ..... ..... @frr
fldx_d 0011 10000011 01000 ..... ..... ..... @frr
fstx_s 0011 10000011 10000 ..... ..... ..... @frr
fstx_d 0011 10000011 11000 ..... ..... ..... @frr
fldgt_s 0011 10000111 01000 ..... ..... ..... @frr
fldgt_d 0011 10000111 01001 ..... ..... ..... @frr
fldle_s 0011 10000111 01010 ..... ..... ..... @frr
fldle_d 0011 10000111 01011 ..... ..... ..... @frr
fstgt_s 0011 10000111 01100 ..... ..... ..... @frr
fstgt_d 0011 10000111 01101 ..... ..... ..... @frr
fstle_s 0011 10000111 01110 ..... ..... ..... @frr
fstle_d 0011 10000111 01111 ..... ..... ..... @frr

1
target/loongarch/translate.c
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@ -170,6 +170,7 @@ static void gen_set_gpr(int reg_num, TCGv t, DisasExtend dst_ext)
#include "insn_trans/trans_fcmp.c.inc"
#include "insn_trans/trans_fcnv.c.inc"
#include "insn_trans/trans_fmov.c.inc"
#include "insn_trans/trans_fmemory.c.inc"
static void loongarch_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{