[PULL 15/29] target/arm: Convert BFMMLA, SMMLA, UMMLA, USMMLA to decodetree

[Peter Maydell]

From: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240625183536.1672454-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/tcg/a64.decode      |  4 ++++
 target/arm/tcg/translate-a64.c | 36 ++++++++--------------------------
 2 files changed, 12 insertions(+), 28 deletions(-)

diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode
index 15344a73de4..b2c7e36969e 100644
--- a/target/arm/tcg/a64.decode
+++ b/target/arm/tcg/a64.decode
@@ -952,6 +952,10 @@ UDOT_v          0.10 1110 100 ..... 10010 1 ..... ..... 
@qrrr_s
 USDOT_v         0.00 1110 100 ..... 10011 1 ..... ..... @qrrr_s
 BFDOT_v         0.10 1110 010 ..... 11111 1 ..... ..... @qrrr_s
 BFMLAL_v        0.10 1110 110 ..... 11111 1 ..... ..... @qrrr_h
+BFMMLA          0110 1110 010 ..... 11101 1 ..... ..... @rrr_q1e0
+SMMLA           0100 1110 100 ..... 10100 1 ..... ..... @rrr_q1e0
+UMMLA           0110 1110 100 ..... 10100 1 ..... ..... @rrr_q1e0
+USMMLA          0100 1110 100 ..... 10101 1 ..... ..... @rrr_q1e0
 
 ### Advanced SIMD scalar x indexed element
 
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 95be862dde4..2697c4b305b 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -5605,6 +5605,10 @@ 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)
 TRANS_FEAT(BFDOT_v, aa64_bf16, do_dot_vector, a, gen_helper_gvec_bfdot)
+TRANS_FEAT(BFMMLA, aa64_bf16, do_dot_vector, a, gen_helper_gvec_bfmmla)
+TRANS_FEAT(SMMLA, aa64_i8mm, do_dot_vector, a, gen_helper_gvec_smmla_b)
+TRANS_FEAT(UMMLA, aa64_i8mm, do_dot_vector, a, gen_helper_gvec_ummla_b)
+TRANS_FEAT(USMMLA, aa64_i8mm, do_dot_vector, a, gen_helper_gvec_usmmla_b)
 
 static bool trans_BFMLAL_v(DisasContext *s, arg_qrrr_e *a)
 {
@@ -10949,15 +10953,6 @@ static void 
disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
     int rot;
 
     switch (u * 16 + opcode) {
-    case 0x04: /* SMMLA */
-    case 0x14: /* UMMLA */
-    case 0x05: /* USMMLA */
-        if (!is_q || size != MO_32) {
-            unallocated_encoding(s);
-            return;
-        }
-        feature = dc_isar_feature(aa64_i8mm, s);
-        break;
     case 0x18: /* FCMLA, #0 */
     case 0x19: /* FCMLA, #90 */
     case 0x1a: /* FCMLA, #180 */
@@ -10972,19 +10967,16 @@ static void 
disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
         }
         feature = dc_isar_feature(aa64_fcma, s);
         break;
-    case 0x1d: /* BFMMLA */
-        if (size != MO_16 || !is_q) {
-            unallocated_encoding(s);
-            return;
-        }
-        feature = dc_isar_feature(aa64_bf16, s);
-        break;
     default:
     case 0x02: /* SDOT (vector) */
     case 0x03: /* USDOT */
+    case 0x04: /* SMMLA */
+    case 0x05: /* USMMLA */
     case 0x10: /* SQRDMLAH (vector) */
     case 0x11: /* SQRDMLSH (vector) */
     case 0x12: /* UDOT (vector) */
+    case 0x14: /* UMMLA */
+    case 0x1d: /* BFMMLA */
     case 0x1f: /* BFDOT / BFMLAL */
         unallocated_encoding(s);
         return;
@@ -10998,15 +10990,6 @@ static void 
disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
     }
 
     switch (opcode) {
-    case 0x04: /* SMMLA, UMMLA */
-        gen_gvec_op4_ool(s, 1, rd, rn, rm, rd, 0,
-                         u ? gen_helper_gvec_ummla_b
-                         : gen_helper_gvec_smmla_b);
-        return;
-    case 0x05: /* USMMLA */
-        gen_gvec_op4_ool(s, 1, rd, rn, rm, rd, 0, gen_helper_gvec_usmmla_b);
-        return;
-
     case 0x8: /* FCMLA, #0 */
     case 0x9: /* FCMLA, #90 */
     case 0xa: /* FCMLA, #180 */
@@ -11051,9 +11034,6 @@ static void 
disas_simd_three_reg_same_extra(DisasContext *s, uint32_t insn)
         }
         return;
 
-    case 0xd: /* BFMMLA */
-        gen_gvec_op4_ool(s, is_q, rd, rn, rm, rd, 0, gen_helper_gvec_bfmmla);
-        return;
     default:
         g_assert_not_reached();
     }
-- 
2.34.1