Re: [PATCH 06/13] target/arm: Convert SUDOT, USDOT to decodetree

2024-06-25 Thread Peter Maydell
On Tue, 25 Jun 2024 at 06:09, Richard Henderson
 wrote:
>
> Signed-off-by: Richard Henderson 
> ---
>  target/arm/tcg/a64.decode  |  3 +++
>  target/arm/tcg/translate-a64.c | 35 --
>  2 files changed, 11 insertions(+), 27 deletions(-)

Reviewed-by: Peter Maydell 

thanks
-- PMM



[PATCH 06/13] target/arm: Convert SUDOT, USDOT to decodetree

2024-06-24 Thread Richard Henderson
Signed-off-by: Richard Henderson 
---
 target/arm/tcg/a64.decode  |  3 +++
 target/arm/tcg/translate-a64.c | 35 --
 2 files changed, 11 insertions(+), 27 deletions(-)

diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode
index 7411d4ba97..8a0251f83c 100644
--- a/target/arm/tcg/a64.decode
+++ b/target/arm/tcg/a64.decode
@@ -949,6 +949,7 @@ 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
+USDOT_v 0.00 1110 100 . 10011 1 . . @qrrr_s
 
 ### Advanced SIMD scalar x indexed element
 
@@ -1026,6 +1027,8 @@ SQRDMLSH_vi 0.10  10 ..   . 0 . . 
  @qrrx_s
 
 SDOT_vi 0.00  10 ..  1110 . 0 . .   @qrrx_s
 UDOT_vi 0.10  10 ..  1110 . 0 . .   @qrrx_s
+SUDOT_vi0.00  00 ..   . 0 . .   @qrrx_s
+USDOT_vi0.00  10 ..   . 0 . .   @qrrx_s
 
 # Floating-point conditional select
 
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index f2e7d8d75c..9a658ca876 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -5603,6 +5603,7 @@ static bool do_dot_vector(DisasContext *s, arg_qrrr_e *a,
 
 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)
+TRANS_FEAT(USDOT_v, aa64_i8mm, do_dot_vector, a, gen_helper_gvec_usdot_b)
 
 /*
  * Advanced SIMD scalar/vector x indexed element
@@ -5937,6 +5938,10 @@ static bool do_dot_vector_idx(DisasContext *s, 
arg_qrrx_e *a,
 
 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)
+TRANS_FEAT(SUDOT_vi, aa64_i8mm, do_dot_vector_idx, a,
+   gen_helper_gvec_sudot_idx_b)
+TRANS_FEAT(USDOT_vi, aa64_i8mm, do_dot_vector_idx, a,
+   gen_helper_gvec_usdot_idx_b)
 
 /*
  * Advanced SIMD scalar pairwise
@@ -10914,13 +10919,6 @@ static void 
disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
 int rot;
 
 switch (u * 16 + opcode) {
-case 0x03: /* USDOT */
-if (size != MO_32) {
-unallocated_encoding(s);
-return;
-}
-feature = dc_isar_feature(aa64_i8mm, s);
-break;
 case 0x04: /* SMMLA */
 case 0x14: /* UMMLA */
 case 0x05: /* USMMLA */
@@ -10964,6 +10962,7 @@ static void 
disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
 break;
 default:
 case 0x02: /* SDOT (vector) */
+case 0x03: /* USDOT */
 case 0x10: /* SQRDMLAH (vector) */
 case 0x11: /* SQRDMLSH (vector) */
 case 0x12: /* UDOT (vector) */
@@ -10979,10 +10978,6 @@ static void 
disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
 }
 
 switch (opcode) {
-case 0x3: /* USDOT */
-gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, 0, gen_helper_gvec_usdot_b);
-return;
-
 case 0x04: /* SMMLA, UMMLA */
 gen_gvec_op4_ool(s, 1, rd, rn, rm, rd, 0,
  u ? gen_helper_gvec_ummla_b
@@ -12058,14 +12053,6 @@ static void disas_simd_indexed(DisasContext *s, 
uint32_t insn)
 break;
 case 0x0f:
 switch (size) {
-case 0: /* SUDOT */
-case 2: /* USDOT */
-if (is_scalar || !dc_isar_feature(aa64_i8mm, s)) {
-unallocated_encoding(s);
-return;
-}
-size = MO_32;
-break;
 case 1: /* BFDOT */
 if (is_scalar || !dc_isar_feature(aa64_bf16, s)) {
 unallocated_encoding(s);
@@ -12082,6 +12069,8 @@ static void disas_simd_indexed(DisasContext *s, 
uint32_t insn)
 size = MO_16;
 break;
 default:
+case 0: /* SUDOT */
+case 2: /* USDOT */
 unallocated_encoding(s);
 return;
 }
@@ -12190,18 +12179,10 @@ static void disas_simd_indexed(DisasContext *s, 
uint32_t insn)
 switch (16 * u + opcode) {
 case 0x0f:
 switch (extract32(insn, 22, 2)) {
-case 0: /* SUDOT */
-gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, index,
- gen_helper_gvec_sudot_idx_b);
-return;
 case 1: /* BFDOT */
 gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, index,
  gen_helper_gvec_bfdot_idx);
 return;
-case 2: /* USDOT */
-gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, index,
- gen_helper_gvec_usdot_idx_b);
-return;
 case 3: /* BFMLAL{B,T} */
 gen_gvec_op4_fpst(s, 1, rd, rn, rm, rd, 0, (index << 1) | is_q,
   gen_helper_gvec_bfmlal_idx);
-- 
2.34.1