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target/arm: Convert SDOT, UDOT to decodetree 

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240625183536.1672454-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
pull/286/head
Richard Henderson 2 years ago
committed by Peter Maydell
parent
f698e45270
commit
65dd60a65b
2 changed files with 35 additions and 26 deletions
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  1. 7
      target/arm/tcg/a64.decode
  2. 54
      target/arm/tcg/translate-a64.c

7
target/arm/tcg/a64.decode
View File

@ -61,6 +61,7 @@
@qrrr_b . q:1 ...... ... rm:5 ...... rn:5 rd:5 &qrrr_e esz=0
@qrrr_h . q:1 ...... ... rm:5 ...... rn:5 rd:5 &qrrr_e esz=1
@qrrr_s . q:1 ...... ... rm:5 ...... rn:5 rd:5 &qrrr_e esz=2
@qrrr_sd . q:1 ...... ... rm:5 ...... rn:5 rd:5 &qrrr_e esz=%esz_sd
@qrrr_e . q:1 ...... esz:2 . rm:5 ...... rn:5 rd:5 &qrrr_e
@qr2r_e . q:1 ...... esz:2 . ..... ...... rm:5 rd:5 &qrrr_e rn=%rd
@ -946,6 +947,9 @@ SQRDMULH_v 0.10 1110 ..1 ..... 10110 1 ..... ..... @qrrr_e
SQRDMLAH_v 0.10 1110 ..0 ..... 10000 1 ..... ..... @qrrr_e
SQRDMLSH_v 0.10 1110 ..0 ..... 10001 1 ..... ..... @qrrr_e
SDOT_v 0.00 1110 100 ..... 10010 1 ..... ..... @qrrr_s
UDOT_v 0.10 1110 100 ..... 10010 1 ..... ..... @qrrr_s
### Advanced SIMD scalar x indexed element
FMUL_si 0101 1111 00 .. .... 1001 . 0 ..... ..... @rrx_h
@ -1020,6 +1024,9 @@ SQRDMLAH_vi 0.10 1111 10 .. .... 1101 . 0 ..... ..... @qrrx_s
SQRDMLSH_vi 0.10 1111 01 .. .... 1111 . 0 ..... ..... @qrrx_h
SQRDMLSH_vi 0.10 1111 10 .. .... 1111 . 0 ..... ..... @qrrx_s
SDOT_vi 0.00 1111 10 .. .... 1110 . 0 ..... ..... @qrrx_s
UDOT_vi 0.10 1111 10 .. .... 1110 . 0 ..... ..... @qrrx_s
# Floating-point conditional select
FCSEL 0001 1110 .. 1 rm:5 cond:4 11 rn:5 rd:5 esz=%esz_hsd

54
target/arm/tcg/translate-a64.c
View File

@ -5592,6 +5592,18 @@ TRANS(SQRDMULH_v, do_gvec_fn3_no8_no64, a, gen_gvec_sqrdmulh_qc)
TRANS_FEAT(SQRDMLAH_v, aa64_rdm, do_gvec_fn3_no8_no64, a, gen_gvec_sqrdmlah_qc)
TRANS_FEAT(SQRDMLSH_v, aa64_rdm, do_gvec_fn3_no8_no64, a, gen_gvec_sqrdmlsh_qc)
static bool do_dot_vector(DisasContext *s, arg_qrrr_e *a,
gen_helper_gvec_4 *fn)
{
if (fp_access_check(s)) {
gen_gvec_op4_ool(s, a->q, a->rd, a->rn, a->rm, a->rd, 0, fn);
}
return true;
}
TRANS_FEAT(SDOT_v, aa64_dp, do_dot_vector, a, gen_helper_gvec_sdot_b)
TRANS_FEAT(UDOT_v, aa64_dp, do_dot_vector, a, gen_helper_gvec_udot_b)
/*
* Advanced SIMD scalar/vector x indexed element
*/
@ -5914,6 +5926,18 @@ static gen_helper_gvec_4 * const f_vector_idx_sqrdmlsh[2] = {
TRANS_FEAT(SQRDMLSH_vi, aa64_rdm, do_int3_qc_vector_idx, a,
f_vector_idx_sqrdmlsh)
static bool do_dot_vector_idx(DisasContext *s, arg_qrrx_e *a,
gen_helper_gvec_4 *fn)
{
if (fp_access_check(s)) {
gen_gvec_op4_ool(s, a->q, a->rd, a->rn, a->rm, a->rd, a->idx, fn);
}
return true;
}
TRANS_FEAT(SDOT_vi, aa64_dp, do_dot_vector_idx, a, gen_helper_gvec_sdot_idx_b)
TRANS_FEAT(UDOT_vi, aa64_dp, do_dot_vector_idx, a, gen_helper_gvec_udot_idx_b)
/*
* Advanced SIMD scalar pairwise
*/
@ -10890,14 +10914,6 @@ static void disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
int rot;
switch (u * 16 + opcode) {
case 0x02: /* SDOT (vector) */
case 0x12: /* UDOT (vector) */
if (size != MO_32) {
unallocated_encoding(s);
return;
}
feature = dc_isar_feature(aa64_dp, s);
break;
case 0x03: /* USDOT */
if (size != MO_32) {
unallocated_encoding(s);
@ -10947,8 +10963,10 @@ static void disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
}
break;
default:
case 0x02: /* SDOT (vector) */
case 0x10: /* SQRDMLAH (vector) */
case 0x11: /* SQRDMLSH (vector) */
case 0x12: /* UDOT (vector) */
unallocated_encoding(s);
return;
}
@ -10961,11 +10979,6 @@ static void disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
}
switch (opcode) {
case 0x2: /* SDOT / UDOT */
gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, 0,
u ? gen_helper_gvec_udot_b : gen_helper_gvec_sdot_b);
return;
case 0x3: /* USDOT */
gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, 0, gen_helper_gvec_usdot_b);
return;
@ -12043,13 +12056,6 @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn)
case 0x0b: /* SQDMULL, SQDMULL2 */
is_long = true;
break;
case 0x0e: /* SDOT */
case 0x1e: /* UDOT */
if (is_scalar || size != MO_32 || !dc_isar_feature(aa64_dp, s)) {
unallocated_encoding(s);
return;
}
break;
case 0x0f:
switch (size) {
case 0: /* SUDOT */
@ -12099,12 +12105,14 @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn)
case 0x09: /* FMUL */
case 0x0c: /* SQDMULH */
case 0x0d: /* SQRDMULH */
case 0x0e: /* SDOT */
case 0x10: /* MLA */
case 0x14: /* MLS */
case 0x18: /* FMLAL2 */
case 0x19: /* FMULX */
case 0x1c: /* FMLSL2 */
case 0x1d: /* SQRDMLAH */
case 0x1e: /* UDOT */
case 0x1f: /* SQRDMLSH */
unallocated_encoding(s);
return;
@ -12180,12 +12188,6 @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn)
}
switch (16 * u + opcode) {
case 0x0e: /* SDOT */
case 0x1e: /* UDOT */
gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, index,
u ? gen_helper_gvec_udot_idx_b
: gen_helper_gvec_sdot_idx_b);
return;
case 0x0f:
switch (extract32(insn, 22, 2)) {
case 0: /* SUDOT */

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