target/arm: Convert Neon VABA/VABD 3-reg-same to decodetree

Convert the Neon VABA and VABD insns in the 3-reg-same group to
decodetree.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-6-peter.maydell@linaro.org

diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 8120d8d..00a909a 100644 (file)
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -101,6 +101,12 @@ VMAX_U_3s        1111 001 1 0 . .. .... .... 0110 . . . 0 .... @3same
 VMIN_S_3s        1111 001 0 0 . .. .... .... 0110 . . . 1 .... @3same
 VMIN_U_3s        1111 001 1 0 . .. .... .... 0110 . . . 1 .... @3same
 
+VABD_S_3s        1111 001 0 0 . .. .... .... 0111 . . . 0 .... @3same
+VABD_U_3s        1111 001 1 0 . .. .... .... 0111 . . . 0 .... @3same
+
+VABA_S_3s        1111 001 0 0 . .. .... .... 0111 . . . 1 .... @3same
+VABA_U_3s        1111 001 1 0 . .. .... .... 0111 . . . 1 .... @3same
+
 VADD_3s          1111 001 0 0 . .. .... .... 1000 . . . 0 .... @3same
 VSUB_3s          1111 001 1 0 . .. .... .... 1000 . . . 0 .... @3same
 

diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 0418a84..20f0f2c 100644 (file)
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -641,6 +641,10 @@ DO_3SAME_NO_SZ_3(VMUL, tcg_gen_gvec_mul)
 DO_3SAME_NO_SZ_3(VMLA, gen_gvec_mla)
 DO_3SAME_NO_SZ_3(VMLS, gen_gvec_mls)
 DO_3SAME_NO_SZ_3(VTST, gen_gvec_cmtst)
+DO_3SAME_NO_SZ_3(VABD_S, gen_gvec_sabd)
+DO_3SAME_NO_SZ_3(VABA_S, gen_gvec_saba)
+DO_3SAME_NO_SZ_3(VABD_U, gen_gvec_uabd)
+DO_3SAME_NO_SZ_3(VABA_U, gen_gvec_uaba)
 
 #define DO_3SAME_CMP(INSN, COND)                                        \
     static void gen_##INSN##_3s(unsigned vece, uint32_t rd_ofs,         \

diff --git a/target/arm/translate.c b/target/arm/translate.c
index 8d856cc..2c842df 100644 (file)
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5421,26 +5421,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
             /* VQRDMLSH : handled by decodetree */
             return 1;
 
-        case NEON_3R_VABD:
-            if (u) {
-                gen_gvec_uabd(size, rd_ofs, rn_ofs, rm_ofs,
-                              vec_size, vec_size);
-            } else {
-                gen_gvec_sabd(size, rd_ofs, rn_ofs, rm_ofs,
-                              vec_size, vec_size);
-            }
-            return 0;
-
-        case NEON_3R_VABA:
-            if (u) {
-                gen_gvec_uaba(size, rd_ofs, rn_ofs, rm_ofs,
-                              vec_size, vec_size);
-            } else {
-                gen_gvec_saba(size, rd_ofs, rn_ofs, rm_ofs,
-                              vec_size, vec_size);
-            }
-            return 0;
-
         case NEON_3R_VADD_VSUB:
         case NEON_3R_LOGIC:
         case NEON_3R_VMAX:
@@ -5455,6 +5435,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
         case NEON_3R_VSHL:
         case NEON_3R_SHA:
         case NEON_3R_VHADD:
+        case NEON_3R_VABD:
+        case NEON_3R_VABA:
             /* Already handled by decodetree */
             return 1;
         }