Implement the scalar forms of the MVE VSUB and VMUL insns.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-24-peter.maydell@linaro.org
---
 target/arm/helper-mve.h    | 8 ++++++++
 target/arm/mve.decode      | 2 ++
 target/arm/mve_helper.c    | 2 ++
 target/arm/translate-mve.c | 2 ++
 4 files changed, 14 insertions(+)

diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h
index 16b974a4270..912505d0152 100644
--- a/target/arm/helper-mve.h
+++ b/target/arm/helper-mve.h
@@ -149,6 +149,14 @@ DEF_HELPER_FLAGS_4(mve_vadd_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
 DEF_HELPER_FLAGS_4(mve_vadd_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
 DEF_HELPER_FLAGS_4(mve_vadd_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
 
+DEF_HELPER_FLAGS_4(mve_vsub_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vsub_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vsub_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_4(mve_vmul_scalarb, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vmul_scalarh, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(mve_vmul_scalarw, TCG_CALL_NO_WG, void, env, ptr, ptr, i32)
+
 DEF_HELPER_FLAGS_4(mve_vmlaldavsh, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
 DEF_HELPER_FLAGS_4(mve_vmlaldavsw, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
 DEF_HELPER_FLAGS_4(mve_vmlaldavxsh, TCG_CALL_NO_WG, i64, env, ptr, ptr, i64)
diff --git a/target/arm/mve.decode b/target/arm/mve.decode
index 0ee7a727081..af5fba78ce2 100644
--- a/target/arm/mve.decode
+++ b/target/arm/mve.decode
@@ -161,3 +161,5 @@ VRMLSLDAVH       1111 1110 1 ... ... 0 ... x:1 1110 . 0 a:1 0 ... 1 @vmlaldav_no
 # Scalar operations
 
 VADD_scalar      1110 1110 0 . .. ... 1 ... 0 1111 . 100 .... @2scalar
+VSUB_scalar      1110 1110 0 . .. ... 1 ... 1 1111 . 100 .... @2scalar
+VMUL_scalar      1110 1110 0 . .. ... 1 ... 1 1110 . 110 .... @2scalar
diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c
index cb97709fcac..3c62627f2c7 100644
--- a/target/arm/mve_helper.c
+++ b/target/arm/mve_helper.c
@@ -512,6 +512,8 @@ DO_2OP_U(vhsubu, do_vhsub_u)
     DO_2OP_SCALAR(OP##w, 4, uint32_t, FN)
 
 DO_2OP_SCALAR_U(vadd_scalar, DO_ADD)
+DO_2OP_SCALAR_U(vsub_scalar, DO_SUB)
+DO_2OP_SCALAR_U(vmul_scalar, DO_MUL)
 
 /*
  * Multiply add long dual accumulate ops.
diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c
index 388848b4ff0..3c059ad91cd 100644
--- a/target/arm/translate-mve.c
+++ b/target/arm/translate-mve.c
@@ -427,6 +427,8 @@ static bool do_2op_scalar(DisasContext *s, arg_2scalar *a,
     }
 
 DO_2OP_SCALAR(VADD_scalar, vadd_scalar)
+DO_2OP_SCALAR(VSUB_scalar, vsub_scalar)
+DO_2OP_SCALAR(VMUL_scalar, vmul_scalar)
 
 static bool do_long_dual_acc(DisasContext *s, arg_vmlaldav *a,
                              MVEGenDualAccOpFn *fn)
-- 
2.20.1