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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id n10sm18891677wre.95.2021.06.07.09.58.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Jun 2021 09:58:38 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 19/55] target/arm: Implement MVE VNEG Date: Mon, 7 Jun 2021 17:57:45 +0100 Message-Id: <20210607165821.9892-20-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210607165821.9892-1-peter.maydell@linaro.org> References: <20210607165821.9892-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::329; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x329.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Implement the MVE VNEG insn (both integer and floating point forms). Signed-off-by: Peter Maydell --- target/arm/helper-mve.h | 6 ++++++ target/arm/mve.decode | 2 ++ target/arm/mve_helper.c | 10 ++++++++++ target/arm/translate-mve.c | 15 +++++++++++++++ 4 files changed, 33 insertions(+) diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h index 76508d5dd71..733a54d2e3c 100644 --- a/target/arm/helper-mve.h +++ b/target/arm/helper-mve.h @@ -55,3 +55,9 @@ DEF_HELPER_FLAGS_3(mve_vabsh, TCG_CALL_NO_WG, void, env, ptr, ptr) DEF_HELPER_FLAGS_3(mve_vabsw, TCG_CALL_NO_WG, void, env, ptr, ptr) DEF_HELPER_FLAGS_3(mve_vfabsh, TCG_CALL_NO_WG, void, env, ptr, ptr) DEF_HELPER_FLAGS_3(mve_vfabss, TCG_CALL_NO_WG, void, env, ptr, ptr) + +DEF_HELPER_FLAGS_3(mve_vnegb, TCG_CALL_NO_WG, void, env, ptr, ptr) +DEF_HELPER_FLAGS_3(mve_vnegh, TCG_CALL_NO_WG, void, env, ptr, ptr) +DEF_HELPER_FLAGS_3(mve_vnegw, TCG_CALL_NO_WG, void, env, ptr, ptr) +DEF_HELPER_FLAGS_3(mve_vfnegh, TCG_CALL_NO_WG, void, env, ptr, ptr) +DEF_HELPER_FLAGS_3(mve_vfnegs, TCG_CALL_NO_WG, void, env, ptr, ptr) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index 66963dc1847..82cc0abcb82 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -80,3 +80,5 @@ VMVN 1111 1111 1 . 11 00 00 ... 0 0101 11 . 0 ... 0 @1op_nosz VABS 1111 1111 1 . 11 .. 01 ... 0 0011 01 . 0 ... 0 @1op VABS_fp 1111 1111 1 . 11 .. 01 ... 0 0111 01 . 0 ... 0 @1op +VNEG 1111 1111 1 . 11 .. 01 ... 0 0011 11 . 0 ... 0 @1op +VNEG_fp 1111 1111 1 . 11 .. 01 ... 0 0111 11 . 0 ... 0 @1op diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c index 2ab05e66dfc..b14826c05a7 100644 --- a/target/arm/mve_helper.c +++ b/target/arm/mve_helper.c @@ -278,3 +278,13 @@ DO_1OP(vabsw, 4, int32_t, H4, DO_ABS) DO_1OP(vfabsh, 2, uint16_t, H2, DO_FABS) DO_1OP(vfabss, 4, uint32_t, H4, DO_FABS) + +#define DO_NEG(N) (-(N)) +#define DO_FNEG(N) ((N) ^ ~((__typeof(N))-1 >> 1)) + +DO_1OP(vnegb, 1, int8_t, H1, DO_NEG) +DO_1OP(vnegh, 2, int16_t, H2, DO_NEG) +DO_1OP(vnegw, 4, int32_t, H4, DO_NEG) + +DO_1OP(vfnegh, 2, uint16_t, H2, DO_FNEG) +DO_1OP(vfnegs, 4, uint32_t, H4, DO_FNEG) diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index badd4da2cbf..086cac9f0cd 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -212,6 +212,7 @@ static bool do_1op(DisasContext *s, arg_1op *a, MVEGenOneOpFn fn) DO_1OP(VCLZ, vclz) DO_1OP(VCLS, vcls) DO_1OP(VABS, vabs) +DO_1OP(VNEG, vneg) static bool trans_VREV16(DisasContext *s, arg_1op *a) { @@ -264,3 +265,17 @@ static bool trans_VABS_fp(DisasContext *s, arg_1op *a) } return do_1op(s, a, fns[a->size]); } + +static bool trans_VNEG_fp(DisasContext *s, arg_1op *a) +{ + MVEGenOneOpFn *fns[] = { + NULL, + gen_helper_mve_vfnegh, + gen_helper_mve_vfnegs, + NULL, + }; + if (!dc_isar_feature(aa32_mve_fp, s)) { + return false; + } + return do_1op(s, a, fns[a->size]); +} -- 2.20.1