target/arm: Convert disas_simd_3same_logic to decodetree

This includes AND, ORR, EOR, BIC, ORN, BSF, BIT, BIF.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240524232121.284515-37-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

target/arm/tcg/a64.decode

@@ -55,6 +55,7 @@
 @rrr_q1e3       ........ ... rm:5 ...... rn:5 rd:5      &qrrr_e q=1 esz=3
 @rrrr_q1e3      ........ ... rm:5 . ra:5 rn:5 rd:5      &qrrrr_e q=1 esz=3
 
+@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_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
@@ -847,6 +848,15 @@ SMINP_v         0.00 1110 ..1 ..... 10101 1 ..... ..... @qrrr_e
 UMAXP_v         0.10 1110 ..1 ..... 10100 1 ..... ..... @qrrr_e
 UMINP_v         0.10 1110 ..1 ..... 10101 1 ..... ..... @qrrr_e
 
+AND_v           0.00 1110 001 ..... 00011 1 ..... ..... @qrrr_b
+BIC_v           0.00 1110 011 ..... 00011 1 ..... ..... @qrrr_b
+ORR_v           0.00 1110 101 ..... 00011 1 ..... ..... @qrrr_b
+ORN_v           0.00 1110 111 ..... 00011 1 ..... ..... @qrrr_b
+EOR_v           0.10 1110 001 ..... 00011 1 ..... ..... @qrrr_b
+BSL_v           0.10 1110 011 ..... 00011 1 ..... ..... @qrrr_b
+BIT_v           0.10 1110 101 ..... 00011 1 ..... ..... @qrrr_b
+BIF_v           0.10 1110 111 ..... 00011 1 ..... ..... @qrrr_b
+
 ### Advanced SIMD scalar x indexed element
 
 FMUL_si         0101 1111 00 .. .... 1001 . 0 ..... .....   @rrx_h

target/arm/tcg/translate-a64.c

@@ -5280,6 +5280,24 @@ TRANS(SMINP_v, do_gvec_fn3_no64, a, gen_gvec_sminp)
 TRANS(UMAXP_v, do_gvec_fn3_no64, a, gen_gvec_umaxp)
 TRANS(UMINP_v, do_gvec_fn3_no64, a, gen_gvec_uminp)
 
+TRANS(AND_v, do_gvec_fn3, a, tcg_gen_gvec_and)
+TRANS(BIC_v, do_gvec_fn3, a, tcg_gen_gvec_andc)
+TRANS(ORR_v, do_gvec_fn3, a, tcg_gen_gvec_or)
+TRANS(ORN_v, do_gvec_fn3, a, tcg_gen_gvec_orc)
+TRANS(EOR_v, do_gvec_fn3, a, tcg_gen_gvec_xor)
+
+static bool do_bitsel(DisasContext *s, bool is_q, int d, int a, int b, int c)
+{
+    if (fp_access_check(s)) {
+        gen_gvec_fn4(s, is_q, d, a, b, c, tcg_gen_gvec_bitsel, 0);
+    }
+    return true;
+}
+
+TRANS(BSL_v, do_bitsel, a->q, a->rd, a->rd, a->rn, a->rm)
+TRANS(BIT_v, do_bitsel, a->q, a->rd, a->rm, a->rn, a->rd)
+TRANS(BIF_v, do_bitsel, a->q, a->rd, a->rm, a->rd, a->rn)
+
 /*
  * Advanced SIMD scalar/vector x indexed element
  */
@@ -10901,52 +10919,6 @@ static void disas_simd_three_reg_diff(DisasContext *s, uint32_t insn)
     }
 }
 
-/* Logic op (opcode == 3) subgroup of C3.6.16. */
-static void disas_simd_3same_logic(DisasContext *s, uint32_t insn)
-{
-    int rd = extract32(insn, 0, 5);
-    int rn = extract32(insn, 5, 5);
-    int rm = extract32(insn, 16, 5);
-    int size = extract32(insn, 22, 2);
-    bool is_u = extract32(insn, 29, 1);
-    bool is_q = extract32(insn, 30, 1);
-
-    if (!fp_access_check(s)) {
-        return;
-    }
-
-    switch (size + 4 * is_u) {
-    case 0: /* AND */
-        gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_and, 0);
-        return;
-    case 1: /* BIC */
-        gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_andc, 0);
-        return;
-    case 2: /* ORR */
-        gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_or, 0);
-        return;
-    case 3: /* ORN */
-        gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_orc, 0);
-        return;
-    case 4: /* EOR */
-        gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_xor, 0);
-        return;
-
-    case 5: /* BSL bitwise select */
-        gen_gvec_fn4(s, is_q, rd, rd, rn, rm, tcg_gen_gvec_bitsel, 0);
-        return;
-    case 6: /* BIT, bitwise insert if true */
-        gen_gvec_fn4(s, is_q, rd, rm, rn, rd, tcg_gen_gvec_bitsel, 0);
-        return;
-    case 7: /* BIF, bitwise insert if false */
-        gen_gvec_fn4(s, is_q, rd, rm, rd, rn, tcg_gen_gvec_bitsel, 0);
-        return;
-
-    default:
-        g_assert_not_reached();
-    }
-}
-
 /* Integer op subgroup of C3.6.16. */
 static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
 {
@@ -11212,12 +11184,10 @@ static void disas_simd_three_reg_same(DisasContext *s, uint32_t insn)
     int opcode = extract32(insn, 11, 5);
 
     switch (opcode) {
-    case 0x3: /* logic ops */
-        disas_simd_3same_logic(s, insn);
-        break;
     default:
         disas_simd_3same_int(s, insn);
         break;
+    case 0x3: /* logic ops */
     case 0x14: /* SMAXP, UMAXP */
     case 0x15: /* SMINP, UMINP */
     case 0x17: /* ADDP */