[PATCH v2 46/57] target/arm: Implement MVE VQRSHL

From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-arm@nongnu.org, qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>
Subject: [PATCH v2 46/57] target/arm: Implement MVE VQRSHL
Date: Mon, 14 Jun 2021 16:09:56 +0100	[thread overview]
Message-ID: <20210614151007.4545-47-peter.maydell@linaro.org> (raw)
In-Reply-To: <20210614151007.4545-1-peter.maydell@linaro.org>

Implement the MV VQRSHL (vector) insn.  Again, the code to perform
the actual shifts is borrowed from neon_helper.c.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/helper-mve.h    | 8 ++++++++
 target/arm/mve.decode      | 3 +++
 target/arm/mve_helper.c    | 6 ++++++
 target/arm/translate-mve.c | 2 ++
 4 files changed, 19 insertions(+)

diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h
index 1c5626bb726..42be99ad526 100644
--- a/target/arm/helper-mve.h
+++ b/target/arm/helper-mve.h
@@ -177,6 +177,14 @@ DEF_HELPER_FLAGS_4(mve_vqshlub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vqshluh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vqshluw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 
+DEF_HELPER_FLAGS_4(mve_vqrshlsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vqrshlsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vqrshlsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+
+DEF_HELPER_FLAGS_4(mve_vqrshlub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vqrshluh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vqrshluw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+
 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)
diff --git a/target/arm/mve.decode b/target/arm/mve.decode
index 2c37e265765..e78eab6d659 100644
--- a/target/arm/mve.decode
+++ b/target/arm/mve.decode
@@ -133,6 +133,9 @@ VQSUB_U          111 1 1111 0 . .. ... 0 ... 0 0010 . 1 . 1 ... 0 @2op
 VQSHL_S          111 0 1111 0 . .. ... 0 ... 0 0100 . 1 . 1 ... 0 @2op_rev
 VQSHL_U          111 1 1111 0 . .. ... 0 ... 0 0100 . 1 . 1 ... 0 @2op_rev
 
+VQRSHL_S         111 0 1111 0 . .. ... 0 ... 0 0101 . 1 . 1 ... 0 @2op_rev
+VQRSHL_U         111 1 1111 0 . .. ... 0 ... 0 0101 . 1 . 1 ... 0 @2op_rev
+
 # 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 31ee057db2e..3464dd311f1 100644
--- a/target/arm/mve_helper.c
+++ b/target/arm/mve_helper.c
@@ -622,9 +622,15 @@ DO_2OP_SAT(vqsubsw, 4, int32_t, DO_SQSUB_W)
     WRAP_QRSHL_HELPER(do_sqrshl_bhs, N, M, false, satp)
 #define DO_UQSHL_OP(N, M, satp) \
     WRAP_QRSHL_HELPER(do_uqrshl_bhs, N, M, false, satp)
+#define DO_SQRSHL_OP(N, M, satp) \
+    WRAP_QRSHL_HELPER(do_sqrshl_bhs, N, M, true, satp)
+#define DO_UQRSHL_OP(N, M, satp) \
+    WRAP_QRSHL_HELPER(do_uqrshl_bhs, N, M, true, satp)
 
 DO_2OP_SAT_S(vqshls, DO_SQSHL_OP)
 DO_2OP_SAT_U(vqshlu, DO_UQSHL_OP)
+DO_2OP_SAT_S(vqrshls, DO_SQRSHL_OP)
+DO_2OP_SAT_U(vqrshlu, DO_UQRSHL_OP)
 
 #define DO_2OP_SCALAR(OP, ESIZE, TYPE, FN)                              \
     void HELPER(glue(mve_, OP))(CPUARMState *env, void *vd, void *vn,   \
diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c
index bde62bf2445..ac0114c8358 100644
--- a/target/arm/translate-mve.c
+++ b/target/arm/translate-mve.c
@@ -404,6 +404,8 @@ DO_2OP(VQSUB_S, vqsubs)
 DO_2OP(VQSUB_U, vqsubu)
 DO_2OP(VQSHL_S, vqshls)
 DO_2OP(VQSHL_U, vqshlu)
+DO_2OP(VQRSHL_S, vqrshls)
+DO_2OP(VQRSHL_U, vqrshlu)
 
 static bool do_2op_scalar(DisasContext *s, arg_2scalar *a,
                           MVEGenTwoOpScalarFn fn)
-- 
2.20.1


