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target/mips: Convert MSA 3R instruction format to decodetree (part 2/4) 

Convert 3-register operations to decodetree.

Per the Encoding of Operation Field for 3R Instruction Format'
(Table 3.25), these instructions are not defined for the BYTE
format. Therefore the TRANS_DF_iii_b() macro returns 'false'
in that case, because no such instruction is decoded.

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211028210843.2120802-22-f4bug@amsat.org>
master
Philippe Mathieu-Daudé 2021-10-19 13:51:07 +02:00
parent 67bedef51a
commit f18708a53a
2 changed files with 35 additions and 158 deletions
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11
target/mips/tcg/msa.decode
View File

@ -89,10 +89,21 @@ BNZ 010001 111 .. ..... ................ @bz
SRARI 011110 010 ....... ..... ..... 001010 @bit
SRLRI 011110 011 ....... ..... ..... 001010 @bit
DOTP_S 011110 000.. ..... ..... ..... 010011 @3r
DOTP_U 011110 001.. ..... ..... ..... 010011 @3r
DPADD_S 011110 010.. ..... ..... ..... 010011 @3r
DPADD_U 011110 011.. ..... ..... ..... 010011 @3r
DPSUB_S 011110 100.. ..... ..... ..... 010011 @3r
DPSUB_U 011110 101.. ..... ..... ..... 010011 @3r
SLD 011110 000 .. ..... ..... ..... 010100 @3r
SPLAT 011110 001 .. ..... ..... ..... 010100 @3r
VSHF 011110 000 .. ..... ..... ..... 010101 @3r
HADD_S 011110 100.. ..... ..... ..... 010101 @3r
HADD_U 011110 101.. ..... ..... ..... 010101 @3r
HSUB_S 011110 110.. ..... ..... ..... 010101 @3r
HSUB_U 011110 111.. ..... ..... ..... 010101 @3r
FCAF 011110 0000 . ..... ..... ..... 011010 @3rf_w
FCUN 011110 0001 . ..... ..... ..... 011010 @3rf_w

182
target/mips/tcg/msa_translate.c
View File

@ -57,13 +57,11 @@ enum {
OPC_ADD_A_df = (0x0 << 23) | OPC_MSA_3R_10,
OPC_SUBS_S_df = (0x0 << 23) | OPC_MSA_3R_11,
OPC_MULV_df = (0x0 << 23) | OPC_MSA_3R_12,
OPC_DOTP_S_df = (0x0 << 23) | OPC_MSA_3R_13,
OPC_SRA_df = (0x1 << 23) | OPC_MSA_3R_0D,
OPC_SUBV_df = (0x1 << 23) | OPC_MSA_3R_0E,
OPC_ADDS_A_df = (0x1 << 23) | OPC_MSA_3R_10,
OPC_SUBS_U_df = (0x1 << 23) | OPC_MSA_3R_11,
OPC_MADDV_df = (0x1 << 23) | OPC_MSA_3R_12,
OPC_DOTP_U_df = (0x1 << 23) | OPC_MSA_3R_13,
OPC_SRAR_df = (0x1 << 23) | OPC_MSA_3R_15,
OPC_SRL_df = (0x2 << 23) | OPC_MSA_3R_0D,
OPC_MAX_S_df = (0x2 << 23) | OPC_MSA_3R_0E,
@ -71,7 +69,6 @@ enum {
OPC_ADDS_S_df = (0x2 << 23) | OPC_MSA_3R_10,
OPC_SUBSUS_U_df = (0x2 << 23) | OPC_MSA_3R_11,
OPC_MSUBV_df = (0x2 << 23) | OPC_MSA_3R_12,
OPC_DPADD_S_df = (0x2 << 23) | OPC_MSA_3R_13,
OPC_PCKEV_df = (0x2 << 23) | OPC_MSA_3R_14,
OPC_SRLR_df = (0x2 << 23) | OPC_MSA_3R_15,
OPC_BCLR_df = (0x3 << 23) | OPC_MSA_3R_0D,
@ -79,7 +76,6 @@ enum {
OPC_CLT_U_df = (0x3 << 23) | OPC_MSA_3R_0F,
OPC_ADDS_U_df = (0x3 << 23) | OPC_MSA_3R_10,
OPC_SUBSUU_S_df = (0x3 << 23) | OPC_MSA_3R_11,
OPC_DPADD_U_df = (0x3 << 23) | OPC_MSA_3R_13,
OPC_PCKOD_df = (0x3 << 23) | OPC_MSA_3R_14,
OPC_BSET_df = (0x4 << 23) | OPC_MSA_3R_0D,
OPC_MIN_S_df = (0x4 << 23) | OPC_MSA_3R_0E,
@ -87,30 +83,24 @@ enum {
OPC_AVE_S_df = (0x4 << 23) | OPC_MSA_3R_10,
OPC_ASUB_S_df = (0x4 << 23) | OPC_MSA_3R_11,
OPC_DIV_S_df = (0x4 << 23) | OPC_MSA_3R_12,
OPC_DPSUB_S_df = (0x4 << 23) | OPC_MSA_3R_13,
OPC_ILVL_df = (0x4 << 23) | OPC_MSA_3R_14,
OPC_HADD_S_df = (0x4 << 23) | OPC_MSA_3R_15,
OPC_BNEG_df = (0x5 << 23) | OPC_MSA_3R_0D,
OPC_MIN_U_df = (0x5 << 23) | OPC_MSA_3R_0E,
OPC_CLE_U_df = (0x5 << 23) | OPC_MSA_3R_0F,
OPC_AVE_U_df = (0x5 << 23) | OPC_MSA_3R_10,
OPC_ASUB_U_df = (0x5 << 23) | OPC_MSA_3R_11,
OPC_DIV_U_df = (0x5 << 23) | OPC_MSA_3R_12,
OPC_DPSUB_U_df = (0x5 << 23) | OPC_MSA_3R_13,
OPC_ILVR_df = (0x5 << 23) | OPC_MSA_3R_14,
OPC_HADD_U_df = (0x5 << 23) | OPC_MSA_3R_15,
OPC_BINSL_df = (0x6 << 23) | OPC_MSA_3R_0D,
OPC_MAX_A_df = (0x6 << 23) | OPC_MSA_3R_0E,
OPC_AVER_S_df = (0x6 << 23) | OPC_MSA_3R_10,
OPC_MOD_S_df = (0x6 << 23) | OPC_MSA_3R_12,
OPC_ILVEV_df = (0x6 << 23) | OPC_MSA_3R_14,
OPC_HSUB_S_df = (0x6 << 23) | OPC_MSA_3R_15,
OPC_BINSR_df = (0x7 << 23) | OPC_MSA_3R_0D,
OPC_MIN_A_df = (0x7 << 23) | OPC_MSA_3R_0E,
OPC_AVER_U_df = (0x7 << 23) | OPC_MSA_3R_10,
OPC_MOD_U_df = (0x7 << 23) | OPC_MSA_3R_12,
OPC_ILVOD_df = (0x7 << 23) | OPC_MSA_3R_14,
OPC_HSUB_U_df = (0x7 << 23) | OPC_MSA_3R_15,
/* ELM instructions df(bits 21..16) = _b, _h, _w, _d */
OPC_SLDI_df = (0x0 << 22) | (0x00 << 16) | OPC_MSA_ELM,
@ -255,6 +245,15 @@ typedef void gen_helper_piiii(TCGv_ptr, TCGv_i32, TCGv_i32, TCGv_i32, TCGv_i32);
#define TRANS_DF_ii(NAME, trans_func, gen_func) \
TRANS_DF_x(ii, NAME, trans_func, gen_func)
#define TRANS_DF_iii_b(NAME, trans_func, gen_func) \
static gen_helper_piii * const NAME##_tab[4] = { \
NULL, gen_func##_h, gen_func##_w, gen_func##_d \
}; \
static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
{ \
return trans_func(ctx, a, NAME##_tab[a->df]); \
}
static void gen_check_zero_element(TCGv tresult, uint8_t df, uint8_t wt,
TCGCond cond)
{
@ -482,6 +481,10 @@ static bool trans_msa_3rf(DisasContext *ctx, arg_msa_r *a,
static bool trans_msa_3r(DisasContext *ctx, arg_msa_r *a,
gen_helper_piii *gen_msa_3r)
{
if (!gen_msa_3r) {
return false;
}
if (!check_msa_enabled(ctx)) {
return true;
}
@ -502,10 +505,21 @@ TRANS(BMNZ_V, trans_msa_3r, gen_helper_msa_bmnz_v);
TRANS(BMZ_V, trans_msa_3r, gen_helper_msa_bmz_v);
TRANS(BSEL_V, trans_msa_3r, gen_helper_msa_bsel_v);
TRANS_DF_iii_b(DOTP_S, trans_msa_3r, gen_helper_msa_dotp_s);
TRANS_DF_iii_b(DOTP_U, trans_msa_3r, gen_helper_msa_dotp_u);
TRANS_DF_iii_b(DPADD_S, trans_msa_3r, gen_helper_msa_dpadd_s);
TRANS_DF_iii_b(DPADD_U, trans_msa_3r, gen_helper_msa_dpadd_u);
TRANS_DF_iii_b(DPSUB_S, trans_msa_3r, gen_helper_msa_dpsub_s);
TRANS_DF_iii_b(DPSUB_U, trans_msa_3r, gen_helper_msa_dpsub_u);
TRANS(SLD, trans_msa_3rf, gen_helper_msa_sld_df);
TRANS(SPLAT, trans_msa_3rf, gen_helper_msa_splat_df);
TRANS(VSHF, trans_msa_3rf, gen_helper_msa_vshf_df);
TRANS_DF_iii_b(HADD_S, trans_msa_3r, gen_helper_msa_hadd_s);
TRANS_DF_iii_b(HADD_U, trans_msa_3r, gen_helper_msa_hadd_u);
TRANS_DF_iii_b(HSUB_S, trans_msa_3r, gen_helper_msa_hsub_s);
TRANS_DF_iii_b(HSUB_U, trans_msa_3r, gen_helper_msa_hsub_u);
static void gen_msa_3r(DisasContext *ctx)
{
@ -1321,154 +1335,6 @@ static void gen_msa_3r(DisasContext *ctx)
break;
}
break;
case OPC_DOTP_S_df:
case OPC_DOTP_U_df:
case OPC_DPADD_S_df:
case OPC_DPADD_U_df:
case OPC_DPSUB_S_df:
case OPC_HADD_S_df:
case OPC_DPSUB_U_df:
case OPC_HADD_U_df:
case OPC_HSUB_S_df:
case OPC_HSUB_U_df:
if (df == DF_BYTE) {
gen_reserved_instruction(ctx);
break;
}
switch (MASK_MSA_3R(ctx->opcode)) {
case OPC_HADD_S_df:
switch (df) {
case DF_HALF:
gen_helper_msa_hadd_s_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_hadd_s_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_hadd_s_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_HADD_U_df:
switch (df) {
case DF_HALF:
gen_helper_msa_hadd_u_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_hadd_u_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_hadd_u_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_HSUB_S_df:
switch (df) {
case DF_HALF:
gen_helper_msa_hsub_s_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_hsub_s_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_hsub_s_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_HSUB_U_df:
switch (df) {
case DF_HALF:
gen_helper_msa_hsub_u_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_hsub_u_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_hsub_u_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_DOTP_S_df:
switch (df) {
case DF_HALF:
gen_helper_msa_dotp_s_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_dotp_s_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_dotp_s_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_DOTP_U_df:
switch (df) {
case DF_HALF:
gen_helper_msa_dotp_u_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_dotp_u_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_dotp_u_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_DPADD_S_df:
switch (df) {
case DF_HALF:
gen_helper_msa_dpadd_s_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_dpadd_s_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_dpadd_s_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_DPADD_U_df:
switch (df) {
case DF_HALF:
gen_helper_msa_dpadd_u_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_dpadd_u_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_dpadd_u_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_DPSUB_S_df:
switch (df) {
case DF_HALF:
gen_helper_msa_dpsub_s_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_dpsub_s_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_dpsub_s_d(cpu_env, twd, tws, twt);
break;
}
break;
case OPC_DPSUB_U_df:
switch (df) {
case DF_HALF:
gen_helper_msa_dpsub_u_h(cpu_env, twd, tws, twt);
break;
case DF_WORD:
gen_helper_msa_dpsub_u_w(cpu_env, twd, tws, twt);
break;
case DF_DOUBLE:
gen_helper_msa_dpsub_u_d(cpu_env, twd, tws, twt);
break;
}
break;
}
break;
default:
MIPS_INVAL("MSA instruction");
gen_reserved_instruction(ctx);