[PATCH v2 24/57] target/arm: Implement MVE VADD, VSUB, VMUL

[Peter Maydell]

Implement the MVE VADD, VSUB and VMUL insns.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/helper-mve.h    | 12 ++++++++++++
 target/arm/mve.decode      |  5 +++++
 target/arm/mve_helper.c    | 14 ++++++++++++++
 target/arm/translate-mve.c | 16 ++++++++++++++++
 4 files changed, 47 insertions(+)

diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h
index 01b6123f250..707b9cbd546 100644
--- a/target/arm/helper-mve.h
+++ b/target/arm/helper-mve.h
@@ -69,3 +69,15 @@ DEF_HELPER_FLAGS_4(mve_vbic, TCG_CALL_NO_WG, void, env, ptr, 
ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vorr, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vorn, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_veor, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+
+DEF_HELPER_FLAGS_4(mve_vaddb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vaddh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vaddw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+
+DEF_HELPER_FLAGS_4(mve_vsubb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vsubh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vsubw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+
+DEF_HELPER_FLAGS_4(mve_vmulb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vmulh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vmulw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
diff --git a/target/arm/mve.decode b/target/arm/mve.decode
index 332e0b8d1d6..f7d1d303f17 100644
--- a/target/arm/mve.decode
+++ b/target/arm/mve.decode
@@ -33,6 +33,7 @@
 
 @1op .... .... .... size:2 .. .... .... .... .... &1op qd=%qd qm=%qm
 @1op_nosz .... .... .... .... .... .... .... .... &1op qd=%qd qm=%qm size=0
+@2op .... .... .. size:2 .... .... .... .... .... &2op qd=%qd qm=%qm qn=%qn
 @2op_nosz .... .... .... .... .... .... .... .... &2op qd=%qd qm=%qm qn=%qn 
size=0
 
 # Vector loads and stores
@@ -77,6 +78,10 @@ VORR             1110 1111 0 . 10 ... 0 ... 0 0001 . 1 . 1 
... 0 @2op_nosz
 VORN             1110 1111 0 . 11 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
 VEOR             1111 1111 0 . 00 ... 0 ... 0 0001 . 1 . 1 ... 0 @2op_nosz
 
+VADD             1110 1111 0 . .. ... 0 ... 0 1000 . 1 . 0 ... 0 @2op
+VSUB             1111 1111 0 . .. ... 0 ... 0 1000 . 1 . 0 ... 0 @2op
+VMUL             1110 1111 0 . .. ... 0 ... 0 1001 . 1 . 1 ... 0 @2op
+
 # Vector miscellaneous
 
 VCLS             1111 1111 1 . 11 .. 00 ... 0 0100 01 . 0 ... 0 @1op
diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c
index 94064e68660..4dc4aaa5932 100644
--- a/target/arm/mve_helper.c
+++ b/target/arm/mve_helper.c
@@ -352,6 +352,12 @@ DO_1OP(vfnegs, 8, uint64_t, DO_FNEGS)
         mve_advance_vpt(env);                                           \
     }
 
+/* provide unsigned 2-op helpers for all sizes */
+#define DO_2OP_U(OP, FN)                        \
+    DO_2OP(OP##b, 1, uint8_t, FN)               \
+    DO_2OP(OP##h, 2, uint16_t, FN)              \
+    DO_2OP(OP##w, 4, uint32_t, FN)
+
 #define DO_AND(N, M)  ((N) & (M))
 #define DO_BIC(N, M)  ((N) & ~(M))
 #define DO_ORR(N, M)  ((N) | (M))
@@ -363,3 +369,11 @@ DO_2OP(vbic, 8, uint64_t, DO_BIC)
 DO_2OP(vorr, 8, uint64_t, DO_ORR)
 DO_2OP(vorn, 8, uint64_t, DO_ORN)
 DO_2OP(veor, 8, uint64_t, DO_EOR)
+
+#define DO_ADD(N, M) ((N) + (M))
+#define DO_SUB(N, M) ((N) - (M))
+#define DO_MUL(N, M) ((N) * (M))
+
+DO_2OP_U(vadd, DO_ADD)
+DO_2OP_U(vsub, DO_SUB)
+DO_2OP_U(vmul, DO_MUL)
diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c
index 2c78dde42b3..e51650625c5 100644
--- a/target/arm/translate-mve.c
+++ b/target/arm/translate-mve.c
@@ -331,3 +331,19 @@ DO_LOGIC(VBIC, gen_helper_mve_vbic)
 DO_LOGIC(VORR, gen_helper_mve_vorr)
 DO_LOGIC(VORN, gen_helper_mve_vorn)
 DO_LOGIC(VEOR, gen_helper_mve_veor)
+
+#define DO_2OP(INSN, FN) \
+    static bool trans_##INSN(DisasContext *s, arg_2op *a)       \
+    {                                                           \
+        static MVEGenTwoOpFn * const fns[] = {                  \
+            gen_helper_mve_##FN##b,                             \
+            gen_helper_mve_##FN##h,                             \
+            gen_helper_mve_##FN##w,                             \
+            NULL,                                               \
+        };                                                      \
+        return do_2op(s, a, fns[a->size]);                      \
+    }
+
+DO_2OP(VADD, vadd)
+DO_2OP(VSUB, vsub)
+DO_2OP(VMUL, vmul)
-- 
2.20.1