[PATCH v3 39/44] target/arm: Implement MVE VRHADD

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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 v3 39/44] target/arm: Implement MVE VRHADD
Date: Thu, 17 Jun 2021 13:16:23 +0100	[thread overview]
Message-ID: <20210617121628.20116-40-peter.maydell@linaro.org> (raw)
In-Reply-To: <20210617121628.20116-1-peter.maydell@linaro.org>

Implement the MVE VRHADD insn, which performs a rounded halving
addition.

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 34a46ed38ee..2f0cf99359a 100644
--- a/target/arm/helper-mve.h
+++ b/target/arm/helper-mve.h
@@ -238,6 +238,14 @@ DEF_HELPER_FLAGS_4(mve_vqdmullbw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vqdmullth, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vqdmulltw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 
+DEF_HELPER_FLAGS_4(mve_vrhaddsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vrhaddsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vrhaddsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+
+DEF_HELPER_FLAGS_4(mve_vrhaddub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vrhadduh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vrhadduw, 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 3a2a7e75a3a..6b969902df0 100644
--- a/target/arm/mve.decode
+++ b/target/arm/mve.decode
@@ -157,6 +157,9 @@ VQRDMLSDHX       1111 1110 0 . .. ... 0 ... 1 1110 . 0 . 0 ... 1 @2op
 VQDMULLB         111 . 1110 0 . 11 ... 0 ... 0 1111 . 0 . 0 ... 1 @2op_sz28
 VQDMULLT         111 . 1110 0 . 11 ... 0 ... 1 1111 . 0 . 0 ... 1 @2op_sz28
 
+VRHADD_S         111 0 1111 0 . .. ... 0 ... 0 0001 . 1 . 0 ... 0 @2op
+VRHADD_U         111 1 1111 0 . .. ... 0 ... 0 0001 . 1 . 0 ... 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 11eb99894bc..66002f4ca4a 100644
--- a/target/arm/mve_helper.c
+++ b/target/arm/mve_helper.c
@@ -546,6 +546,12 @@ DO_2OP_U(vshlu, DO_VSHLU)
 DO_2OP_S(vrshls, DO_VRSHLS)
 DO_2OP_U(vrshlu, DO_VRSHLU)
 
+#define DO_RHADD_S(N, M) (((int64_t)(N) + (M) + 1) >> 1)
+#define DO_RHADD_U(N, M) (((uint64_t)(N) + (M) + 1) >> 1)
+
+DO_2OP_S(vrhadds, DO_RHADD_S)
+DO_2OP_U(vrhaddu, DO_RHADD_U)
+
 static inline int32_t do_sat_bhw(int64_t val, int64_t min, int64_t max, bool *s)
 {
     if (val > max) {
diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c
index 05789a19812..febf644079c 100644
--- a/target/arm/translate-mve.c
+++ b/target/arm/translate-mve.c
@@ -418,6 +418,8 @@ DO_2OP(VQDMLSDH, vqdmlsdh)
 DO_2OP(VQDMLSDHX, vqdmlsdhx)
 DO_2OP(VQRDMLSDH, vqrdmlsdh)
 DO_2OP(VQRDMLSDHX, vqrdmlsdhx)
+DO_2OP(VRHADD_S, vrhadds)
+DO_2OP(VRHADD_U, vrhaddu)
 
 static bool trans_VQDMULLB(DisasContext *s, arg_2op *a)
 {
-- 
2.20.1

next prev parent reply	other threads:[~2021-06-17 12:50 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-17 12:15 [PATCH v3 00/44] target/arm: First slice of MVE implementation Peter Maydell
2021-06-17 12:15 ` [PATCH v3 01/44] target/arm: Implement MVE VLDR/VSTR (non-widening forms) Peter Maydell
2021-06-17 13:30   ` Claudio Fontana
2021-06-17 13:47     ` Peter Maydell
2021-06-18 14:44   ` Richard Henderson
2021-06-17 12:15 ` [PATCH v3 02/44] target/arm: Implement widening/narrowing MVE VLDR/VSTR insns Peter Maydell
2021-06-18 14:47   ` Richard Henderson
2021-06-17 12:15 ` [PATCH v3 03/44] target/arm: Implement MVE VCLZ Peter Maydell
2021-06-21 13:28   ` Peter Maydell
2021-06-21 16:12   ` Peter Maydell
2021-06-17 12:15 ` [PATCH v3 04/44] target/arm: Implement MVE VCLS Peter Maydell
2021-06-17 12:15 ` [PATCH v3 05/44] target/arm: Implement MVE VREV16, VREV32, VREV64 Peter Maydell
2021-06-17 12:15 ` [PATCH v3 06/44] target/arm: Implement MVE VMVN (register) Peter Maydell
2021-06-17 12:15 ` [PATCH v3 07/44] target/arm: Implement MVE VABS Peter Maydell
2021-06-17 12:15 ` [PATCH v3 08/44] target/arm: Implement MVE VNEG Peter Maydell
2021-06-17 12:15 ` [PATCH v3 09/44] tcg: Make gen_dup_i32/i64() public as tcg_gen_dup_i32/i64 Peter Maydell
2021-06-17 12:15 ` [PATCH v3 10/44] target/arm: Implement MVE VDUP Peter Maydell
2021-06-17 12:15 ` [PATCH v3 11/44] target/arm: Implement MVE VAND, VBIC, VORR, VORN, VEOR Peter Maydell
2021-06-17 12:15 ` [PATCH v3 12/44] target/arm: Implement MVE VADD, VSUB, VMUL Peter Maydell
2021-06-17 12:15 ` [PATCH v3 13/44] target/arm: Implement MVE VMULH Peter Maydell
2021-06-17 12:15 ` [PATCH v3 14/44] target/arm: Implement MVE VRMULH Peter Maydell
2021-06-17 12:15 ` [PATCH v3 15/44] target/arm: Implement MVE VMAX, VMIN Peter Maydell
2021-06-17 12:16 ` [PATCH v3 16/44] target/arm: Implement MVE VABD Peter Maydell
2021-06-17 12:16 ` [PATCH v3 17/44] target/arm: Implement MVE VHADD, VHSUB Peter Maydell
2021-06-17 12:16 ` [PATCH v3 18/44] target/arm: Implement MVE VMULL Peter Maydell
2021-06-17 12:16 ` [PATCH v3 19/44] target/arm: Implement MVE VMLALDAV Peter Maydell
2021-06-17 12:16 ` [PATCH v3 20/44] target/arm: Implement MVE VMLSLDAV Peter Maydell
2021-06-17 12:16 ` [PATCH v3 21/44] target/arm: Implement MVE VRMLALDAVH, VRMLSLDAVH Peter Maydell
2021-06-17 12:16 ` [PATCH v3 22/44] target/arm: Implement MVE VADD (scalar) Peter Maydell
2021-06-17 12:16 ` [PATCH v3 23/44] target/arm: Implement MVE VSUB, VMUL (scalar) Peter Maydell
2021-06-17 12:16 ` [PATCH v3 24/44] target/arm: Implement MVE VHADD, VHSUB (scalar) Peter Maydell
2021-06-17 12:16 ` [PATCH v3 25/44] target/arm: Implement MVE VBRSR Peter Maydell
2021-06-17 12:16 ` [PATCH v3 26/44] target/arm: Implement MVE VPST Peter Maydell
2021-06-17 12:16 ` [PATCH v3 27/44] target/arm: Implement MVE VQADD and VQSUB Peter Maydell
2021-06-17 12:16 ` [PATCH v3 28/44] target/arm: Implement MVE VQDMULH and VQRDMULH (scalar) Peter Maydell
2021-06-17 12:16 ` [PATCH v3 29/44] target/arm: Implement MVE VQDMULL scalar Peter Maydell
2021-06-17 12:16 ` [PATCH v3 30/44] target/arm: Implement MVE VQDMULH, VQRDMULH (vector) Peter Maydell
2021-06-17 12:16 ` [PATCH v3 31/44] target/arm: Implement MVE VQADD, VQSUB (vector) Peter Maydell
2021-06-17 12:16 ` [PATCH v3 32/44] target/arm: Implement MVE VQSHL (vector) Peter Maydell
2021-06-17 12:16 ` [PATCH v3 33/44] target/arm: Implement MVE VQRSHL Peter Maydell
2021-06-17 12:16 ` [PATCH v3 34/44] target/arm: Implement MVE VSHL insn Peter Maydell
2021-06-17 12:16 ` [PATCH v3 35/44] target/arm: Implmement MVE VRSHL Peter Maydell
2021-06-17 13:20   ` Claudio Fontana
2021-06-17 13:23     ` Peter Maydell
2021-06-17 12:16 ` [PATCH v3 36/44] target/arm: Implement MVE VQDMLADH and VQRDMLADH Peter Maydell
2021-06-17 12:16 ` [PATCH v3 37/44] target/arm: Implement MVE VQDMLSDH and VQRDMLSDH Peter Maydell
2021-06-17 12:16 ` [PATCH v3 38/44] target/arm: Implement MVE VQDMULL (vector) Peter Maydell
2021-06-17 12:16 ` Peter Maydell [this message]
2021-06-17 12:16 ` [PATCH v3 40/44] target/arm: Implement MVE VADC, VSBC Peter Maydell
2021-06-17 12:16 ` [PATCH v3 41/44] target/arm: Implement MVE VCADD Peter Maydell
2021-06-17 12:16 ` [PATCH v3 42/44] target/arm: Implement MVE VHCADD Peter Maydell
2021-06-17 12:16 ` [PATCH v3 43/44] target/arm: Implement MVE VADDV Peter Maydell
2021-06-17 12:16 ` [PATCH v3 44/44] target/arm: Make VMOV scalar <-> gpreg beatwise for MVE Peter Maydell
2021-06-17 13:10 ` [PATCH v3 00/44] target/arm: First slice of MVE implementation no-reply

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