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target/riscv: Merge argument sets for insn32 and insn16 

In some cases this allows us to directly use the insn32
translator function.  In some cases we still need a shim.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Richard Henderson 2019-04-01 10:11:50 +07:00 committed by Palmer Dabbelt
parent 8177025558
commit e1d455dd91
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GPG Key ID: EF4CA1502CCBAB41
2 changed files with 57 additions and 169 deletions
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82
target/riscv/insn16.decode
View File

@ -40,17 +40,24 @@
%imm_lui 12:s1 2:5 !function=ex_shift_12
# Argument sets imported from insn32.decode:
&empty !extern
&r rd rs1 rs2 !extern
&i imm rs1 rd !extern
&s imm rs1 rs2 !extern
&j imm rd !extern
&b imm rs2 rs1 !extern
&u imm rd !extern
&shift shamt rs1 rd !extern
# Argument sets:
&cl rs1 rd
&cl_dw uimm rs1 rd
&ci imm rd
&ciw nzuimm rd
&cs rs1 rs2
&cs_dw uimm rs1 rs2
&cb imm rs1
&cr rd rs2
&cj imm
&c_shift shamt rd
&c_ld uimm rd
@ -61,23 +68,24 @@
&cfswsp_sdsp uimm_fswsp uimm_sdsp rs2
# Formats 16:
@cr .... ..... ..... .. &cr rs2=%rs2_5 %rd
@ci ... . ..... ..... .. &ci imm=%imm_ci %rd
@cr .... ..... ..... .. &r rs2=%rs2_5 rs1=%rd %rd
@ci ... . ..... ..... .. &i imm=%imm_ci rs1=%rd %rd
@ciw ... ........ ... .. &ciw nzuimm=%nzuimm_ciw rd=%rs2_3
@cl_d ... ... ... .. ... .. &cl_dw uimm=%uimm_cl_d rs1=%rs1_3 rd=%rs2_3
@cl_w ... ... ... .. ... .. &cl_dw uimm=%uimm_cl_w rs1=%rs1_3 rd=%rs2_3
@cl_d ... ... ... .. ... .. &i imm=%uimm_cl_d rs1=%rs1_3 rd=%rs2_3
@cl_w ... ... ... .. ... .. &i imm=%uimm_cl_w rs1=%rs1_3 rd=%rs2_3
@cl ... ... ... .. ... .. &cl rs1=%rs1_3 rd=%rs2_3
@cs ... ... ... .. ... .. &cs rs1=%rs1_3 rs2=%rs2_3
@cs_2 ... ... ... .. ... .. &cr rd=%rs1_3 rs2=%rs2_3
@cs_d ... ... ... .. ... .. &cs_dw uimm=%uimm_cl_d rs1=%rs1_3 rs2=%rs2_3
@cs_w ... ... ... .. ... .. &cs_dw uimm=%uimm_cl_w rs1=%rs1_3 rs2=%rs2_3
@cb ... ... ... .. ... .. &cb imm=%imm_cb rs1=%rs1_3
@cj ... ........... .. &cj imm=%imm_cj
@cs_2 ... ... ... .. ... .. &r rs2=%rs2_3 rs1=%rs1_3 rd=%rs1_3
@cs_d ... ... ... .. ... .. &s imm=%uimm_cl_d rs1=%rs1_3 rs2=%rs2_3
@cs_w ... ... ... .. ... .. &s imm=%uimm_cl_w rs1=%rs1_3 rs2=%rs2_3
@cj ... ........... .. &j imm=%imm_cj
@cb_z ... ... ... .. ... .. &b imm=%imm_cb rs1=%rs1_3 rs2=0
@c_ld ... . ..... ..... .. &c_ld uimm=%uimm_6bit_ld %rd
@c_lw ... . ..... ..... .. &c_ld uimm=%uimm_6bit_lw %rd
@c_sd ... . ..... ..... .. &c_sd uimm=%uimm_6bit_sd rs2=%rs2_5
@c_sw ... . ..... ..... .. &c_sd uimm=%uimm_6bit_sw rs2=%rs2_5
@c_ldsp ... . ..... ..... .. &i imm=%uimm_6bit_ld rs1=2 %rd
@c_lwsp ... . ..... ..... .. &i imm=%uimm_6bit_lw rs1=2 %rd
@c_sdsp ... . ..... ..... .. &s imm=%uimm_6bit_sd rs1=2 rs2=%rs2_5
@c_swsp ... . ..... ..... .. &s imm=%uimm_6bit_sw rs1=2 rs2=%rs2_5
@c_li ... . ..... ..... .. &i imm=%imm_ci rs1=0 %rd
@c_addi16sp_lui ... . ..... ..... .. &caddi16sp_lui %imm_lui %imm_addi16sp %rd
@c_flwsp_ldsp ... . ..... ..... .. &cflwsp_ldsp uimm_flwsp=%uimm_6bit_lw \
@ -85,45 +93,47 @@
@c_fswsp_sdsp ... . ..... ..... .. &cfswsp_sdsp uimm_fswsp=%uimm_6bit_sw \
uimm_sdsp=%uimm_6bit_sd rs2=%rs2_5
@c_shift ... . .. ... ..... .. &c_shift rd=%rs1_3 shamt=%nzuimm_6bit
@c_shift2 ... . .. ... ..... .. &c_shift rd=%rd shamt=%nzuimm_6bit
@c_shift ... . .. ... ..... .. \
&shift rd=%rs1_3 rs1=%rs1_3 shamt=%nzuimm_6bit
@c_shift2 ... . .. ... ..... .. \
&shift rd=%rd rs1=%rd shamt=%nzuimm_6bit
@c_andi ... . .. ... ..... .. &ci imm=%imm_ci rd=%rs1_3
@c_andi ... . .. ... ..... .. &i imm=%imm_ci rs1=%rs1_3 rd=%rs1_3
# *** RV64C Standard Extension (Quadrant 0) ***
c_addi4spn 000 ........ ... 00 @ciw
c_fld 001 ... ... .. ... 00 @cl_d
c_lw 010 ... ... .. ... 00 @cl_w
fld 001 ... ... .. ... 00 @cl_d
lw 010 ... ... .. ... 00 @cl_w
c_flw_ld 011 --- ... -- ... 00 @cl #Note: Must parse uimm manually
c_fsd 101 ... ... .. ... 00 @cs_d
c_sw 110 ... ... .. ... 00 @cs_w
fsd 101 ... ... .. ... 00 @cs_d
sw 110 ... ... .. ... 00 @cs_w
c_fsw_sd 111 --- ... -- ... 00 @cs #Note: Must parse uimm manually
# *** RV64C Standard Extension (Quadrant 1) ***
c_addi 000 . ..... ..... 01 @ci
addi 000 . ..... ..... 01 @ci
c_jal_addiw 001 . ..... ..... 01 @ci #Note: parse rd and/or imm manually
c_li 010 . ..... ..... 01 @ci
addi 010 . ..... ..... 01 @c_li
c_addi16sp_lui 011 . ..... ..... 01 @c_addi16sp_lui # shares opc with C.LUI
c_srli 100 . 00 ... ..... 01 @c_shift
c_srai 100 . 01 ... ..... 01 @c_shift
c_andi 100 . 10 ... ..... 01 @c_andi
c_sub 100 0 11 ... 00 ... 01 @cs_2
c_xor 100 0 11 ... 01 ... 01 @cs_2
c_or 100 0 11 ... 10 ... 01 @cs_2
c_and 100 0 11 ... 11 ... 01 @cs_2
andi 100 . 10 ... ..... 01 @c_andi
sub 100 0 11 ... 00 ... 01 @cs_2
xor 100 0 11 ... 01 ... 01 @cs_2
or 100 0 11 ... 10 ... 01 @cs_2
and 100 0 11 ... 11 ... 01 @cs_2
c_subw 100 1 11 ... 00 ... 01 @cs_2
c_addw 100 1 11 ... 01 ... 01 @cs_2
c_j 101 ........... 01 @cj
c_beqz 110 ... ... ..... 01 @cb
c_bnez 111 ... ... ..... 01 @cb
jal 101 ........... 01 @cj rd=0 # C.J
beq 110 ... ... ..... 01 @cb_z
bne 111 ... ... ..... 01 @cb_z
# *** RV64C Standard Extension (Quadrant 2) ***
c_slli 000 . ..... ..... 10 @c_shift2
c_fldsp 001 . ..... ..... 10 @c_ld
c_lwsp 010 . ..... ..... 10 @c_lw
fld 001 . ..... ..... 10 @c_ldsp
lw 010 . ..... ..... 10 @c_lwsp
c_flwsp_ldsp 011 . ..... ..... 10 @c_flwsp_ldsp #C.LDSP:RV64;C.FLWSP:RV32
c_jr_mv 100 0 ..... ..... 10 @cr
c_ebreak_jalr_add 100 1 ..... ..... 10 @cr
c_fsdsp 101 ...... ..... 10 @c_sd
c_swsp 110 . ..... ..... 10 @c_sw
fsd 101 ...... ..... 10 @c_sdsp
sw 110 . ..... ..... 10 @c_swsp
c_fswsp_sdsp 111 . ..... ..... 10 @c_fswsp_sdsp #C.SDSP:RV64;C.FSWSP:RV32

144
target/riscv/insn_trans/trans_rvc.inc.c
View File

@ -28,18 +28,6 @@ static bool trans_c_addi4spn(DisasContext *ctx, arg_c_addi4spn *a)
return trans_addi(ctx, &arg);
}
static bool trans_c_fld(DisasContext *ctx, arg_c_fld *a)
{
arg_fld arg = { .rd = a->rd, .rs1 = a->rs1, .imm = a->uimm };
return trans_fld(ctx, &arg);
}
static bool trans_c_lw(DisasContext *ctx, arg_c_lw *a)
{
arg_lw arg = { .rd = a->rd, .rs1 = a->rs1, .imm = a->uimm };
return trans_lw(ctx, &arg);
}
static bool trans_c_flw_ld(DisasContext *ctx, arg_c_flw_ld *a)
{
#ifdef TARGET_RISCV32
@ -47,31 +35,17 @@ static bool trans_c_flw_ld(DisasContext *ctx, arg_c_flw_ld *a)
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVF);
arg_c_lw tmp;
decode_insn16_extract_cl_w(ctx, &tmp, ctx->opcode);
arg_flw arg = { .rd = tmp.rd, .rs1 = tmp.rs1, .imm = tmp.uimm };
arg_i arg;
decode_insn16_extract_cl_w(ctx, &arg, ctx->opcode);
return trans_flw(ctx, &arg);
#else
/* C.LD ( RV64C/RV128C-only ) */
arg_c_fld tmp;
decode_insn16_extract_cl_d(ctx, &tmp, ctx->opcode);
arg_ld arg = { .rd = tmp.rd, .rs1 = tmp.rs1, .imm = tmp.uimm };
arg_i arg;
decode_insn16_extract_cl_d(ctx, &arg, ctx->opcode);
return trans_ld(ctx, &arg);
#endif
}
static bool trans_c_fsd(DisasContext *ctx, arg_c_fsd *a)
{
arg_fsd arg = { .rs1 = a->rs1, .rs2 = a->rs2, .imm = a->uimm };
return trans_fsd(ctx, &arg);
}
static bool trans_c_sw(DisasContext *ctx, arg_c_sw *a)
{
arg_sw arg = { .rs1 = a->rs1, .rs2 = a->rs2, .imm = a->uimm };
return trans_sw(ctx, &arg);
}
static bool trans_c_fsw_sd(DisasContext *ctx, arg_c_fsw_sd *a)
{
#ifdef TARGET_RISCV32
@ -79,34 +53,22 @@ static bool trans_c_fsw_sd(DisasContext *ctx, arg_c_fsw_sd *a)
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVF);
arg_c_sw tmp;
decode_insn16_extract_cs_w(ctx, &tmp, ctx->opcode);
arg_fsw arg = { .rs1 = tmp.rs1, .rs2 = tmp.rs2, .imm = tmp.uimm };
arg_s arg;
decode_insn16_extract_cs_w(ctx, &arg, ctx->opcode);
return trans_fsw(ctx, &arg);
#else
/* C.SD ( RV64C/RV128C-only ) */
arg_c_fsd tmp;
decode_insn16_extract_cs_d(ctx, &tmp, ctx->opcode);
arg_sd arg = { .rs1 = tmp.rs1, .rs2 = tmp.rs2, .imm = tmp.uimm };
arg_s arg;
decode_insn16_extract_cs_d(ctx, &arg, ctx->opcode);
return trans_sd(ctx, &arg);
#endif
}
static bool trans_c_addi(DisasContext *ctx, arg_c_addi *a)
{
if (a->imm == 0) {
/* Hint: insn is valid but does not affect state */
return true;
}
arg_addi arg = { .rd = a->rd, .rs1 = a->rd, .imm = a->imm };
return trans_addi(ctx, &arg);
}
static bool trans_c_jal_addiw(DisasContext *ctx, arg_c_jal_addiw *a)
{
#ifdef TARGET_RISCV32
/* C.JAL */
arg_c_j tmp;
arg_j tmp;
decode_insn16_extract_cj(ctx, &tmp, ctx->opcode);
arg_jal arg = { .rd = 1, .imm = tmp.imm };
return trans_jal(ctx, &arg);
@ -117,16 +79,6 @@ static bool trans_c_jal_addiw(DisasContext *ctx, arg_c_jal_addiw *a)
#endif
}
static bool trans_c_li(DisasContext *ctx, arg_c_li *a)
{
if (a->rd == 0) {
/* Hint: insn is valid but does not affect state */
return true;
}
arg_addi arg = { .rd = a->rd, .rs1 = 0, .imm = a->imm };
return trans_addi(ctx, &arg);
}
static bool trans_c_addi16sp_lui(DisasContext *ctx, arg_c_addi16sp_lui *a)
{
if (a->rd == 2) {
@ -177,41 +129,10 @@ static bool trans_c_srai(DisasContext *ctx, arg_c_srai *a)
return trans_srai(ctx, &arg);
}
static bool trans_c_andi(DisasContext *ctx, arg_c_andi *a)
{
arg_andi arg = { .rd = a->rd, .rs1 = a->rd, .imm = a->imm };
return trans_andi(ctx, &arg);
}
static bool trans_c_sub(DisasContext *ctx, arg_c_sub *a)
{
arg_sub arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_sub(ctx, &arg);
}
static bool trans_c_xor(DisasContext *ctx, arg_c_xor *a)
{
arg_xor arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_xor(ctx, &arg);
}
static bool trans_c_or(DisasContext *ctx, arg_c_or *a)
{
arg_or arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_or(ctx, &arg);
}
static bool trans_c_and(DisasContext *ctx, arg_c_and *a)
{
arg_and arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_and(ctx, &arg);
}
static bool trans_c_subw(DisasContext *ctx, arg_c_subw *a)
{
#ifdef TARGET_RISCV64
arg_subw arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_subw(ctx, &arg);
return trans_subw(ctx, a);
#else
return false;
#endif
@ -220,31 +141,12 @@ static bool trans_c_subw(DisasContext *ctx, arg_c_subw *a)
static bool trans_c_addw(DisasContext *ctx, arg_c_addw *a)
{
#ifdef TARGET_RISCV64
arg_addw arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_addw(ctx, &arg);
return trans_addw(ctx, a);
#else
return false;
#endif
}
static bool trans_c_j(DisasContext *ctx, arg_c_j *a)
{
arg_jal arg = { .rd = 0, .imm = a->imm };
return trans_jal(ctx, &arg);
}
static bool trans_c_beqz(DisasContext *ctx, arg_c_beqz *a)
{
arg_beq arg = { .rs1 = a->rs1, .rs2 = 0, .imm = a->imm };
return trans_beq(ctx, &arg);
}
static bool trans_c_bnez(DisasContext *ctx, arg_c_bnez *a)
{
arg_bne arg = { .rs1 = a->rs1, .rs2 = 0, .imm = a->imm };
return trans_bne(ctx, &arg);
}
static bool trans_c_slli(DisasContext *ctx, arg_c_slli *a)
{
int shamt = a->shamt;
@ -261,18 +163,6 @@ static bool trans_c_slli(DisasContext *ctx, arg_c_slli *a)
return trans_slli(ctx, &arg);
}
static bool trans_c_fldsp(DisasContext *ctx, arg_c_fldsp *a)
{
arg_fld arg = { .rd = a->rd, .rs1 = 2, .imm = a->uimm };
return trans_fld(ctx, &arg);
}
static bool trans_c_lwsp(DisasContext *ctx, arg_c_lwsp *a)
{
arg_lw arg = { .rd = a->rd, .rs1 = 2, .imm = a->uimm };
return trans_lw(ctx, &arg);
}
static bool trans_c_flwsp_ldsp(DisasContext *ctx, arg_c_flwsp_ldsp *a)
{
#ifdef TARGET_RISCV32
@ -321,18 +211,6 @@ static bool trans_c_ebreak_jalr_add(DisasContext *ctx, arg_c_ebreak_jalr_add *a)
return false;
}
static bool trans_c_fsdsp(DisasContext *ctx, arg_c_fsdsp *a)
{
arg_fsd arg = { .rs1 = 2, .rs2 = a->rs2, .imm = a->uimm };
return trans_fsd(ctx, &arg);
}
static bool trans_c_swsp(DisasContext *ctx, arg_c_swsp *a)
{
arg_sw arg = { .rs1 = 2, .rs2 = a->rs2, .imm = a->uimm };
return trans_sw(ctx, &arg);
}
static bool trans_c_fswsp_sdsp(DisasContext *ctx, arg_c_fswsp_sdsp *a)
{
#ifdef TARGET_RISCV32