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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id n10sm18891677wre.95.2021.06.07.09.58.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Jun 2021 09:58:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=xM1/IljcmeixGn7/ya3GpB0ZkMzTXbAaR9fyni5YxU4=; b=QxOhZDGNlJu69mR/ZAdppK6LVebKgg6rk7YA8BQxLN+nTQI7eqvhdXZRbX0M/G3XEK SCmlRcvND2S56SUWQchIKrmLSdFSnlhIj3NxyaoeIy7I51qslIwyTow0bZPTqtWxto0M RjDs1nsIpwsdj7jH0p9mfw7SpLQZJkR7F9IvRpB+M4fgm9b79iFREGTRhGrhwqupXadh Fy0jHy/WtjHCSkbccYI8zf7yvSwfKdwkNzGUT1n7STavePdmU7V1rE46YfBZRqM++jUe YLmqp2XMPrQrv2ptn4ODavlUIJAXVJwQiV2OUZkPReF9EbtgOYv+d3CR5e5+xewCPDcb DMgA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=xM1/IljcmeixGn7/ya3GpB0ZkMzTXbAaR9fyni5YxU4=; b=enmDaCjnjz+kCCdD8ayamEjsFX/vrM5kSURgkeKrJziHlN3Jk582NPdL4DqQsBuVJw vJ0gUUFDNlqFCKaVPhF+PBWwIQym6+SV8EMyDLo4tlb1DtMZ7WN+Rg83Fa4Z2IcXJMgq ibNEXOClOI6QNYTHBS1E4LVN9DqDQ25NCaIohKtMu9yYq2/RMB8ZG9GzRM0CVV73CrVw KTB3PzcmKY/C55/RMmArzOiQucyKzmtAn7/xOZuVA89xuIL0gFad6/O6OC/2MvTUkISD zbJtrjRrsPyArwfVnTQ0RMS1TLgv5l01A4DJKDTu6l5xsdJryAa5SC2CfWh/cMw01NRM ZKBw== X-Gm-Message-State: AOAM532lP/cUPiKpM4AMzZTlHMOJ/GUvBaNi3wt2/9nOT1tlvjA25Zrp WHKe6NzK6p432S88YgWhvOYNUp9EfrVU7qtr X-Google-Smtp-Source: ABdhPJz5ScJBcfckq2iTczMuXD1ynDnZzWCupxfLUdpEm1oth7yBZgnr/raK5Hc35YhrYGY6JRZhGA== X-Received: by 2002:a05:600c:1ca2:: with SMTP id k34mr9728310wms.145.1623085122966; Mon, 07 Jun 2021 09:58:42 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 24/55] target/arm: Implement MVE VRMULH Date: Mon, 7 Jun 2021 17:57:50 +0100 Message-Id: <20210607165821.9892-25-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: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32b; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x32b.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=ham 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" Implement the MVE VRMULH insn, which performs a rounding multiply and then returns the high half. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/helper-mve.h | 7 +++++++ target/arm/mve.decode | 3 +++ target/arm/mve_helper.c | 22 ++++++++++++++++++++++ target/arm/translate-mve.c | 2 ++ 4 files changed, 34 insertions(+) diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h index 17219df3159..38d084429b8 100644 --- a/target/arm/helper-mve.h +++ b/target/arm/helper-mve.h @@ -90,3 +90,10 @@ DEF_HELPER_FLAGS_4(mve_vmulhsw, TCG_CALL_NO_WG, void, en= v, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vmulhub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vmulhuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vmulhuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) + +DEF_HELPER_FLAGS_4(mve_vrmulhsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vrmulhsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vrmulhsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vrmulhub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vrmulhuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vrmulhuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index ca4c27209da..4ab6c9dba90 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -85,6 +85,9 @@ VMUL 1110 1111 0 . .. ... 0 ... 0 1001 . 1 . = 1 ... 0 @2op VMULH_S 111 0 1110 0 . .. ...1 ... 0 1110 . 0 . 0 ... 1 @2op VMULH_U 111 1 1110 0 . .. ...1 ... 0 1110 . 0 . 0 ... 1 @2op =20 +VRMULH_S 111 0 1110 0 . .. ...1 ... 1 1110 . 0 . 0 ... 1 @2op +VRMULH_U 111 1 1110 0 . .. ...1 ... 1 1110 . 0 . 0 ... 1 @2op + # Vector miscellaneous =20 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 45b1b121ce6..20d96b86f5a 100644 --- a/target/arm/mve_helper.c +++ b/target/arm/mve_helper.c @@ -368,9 +368,31 @@ static inline uint32_t do_mulh_w(int64_t n, int64_t m) return (n * m) >> 32; } =20 +static inline uint8_t do_rmulh_b(int32_t n, int32_t m) +{ + return (n * m + (1U << 7)) >> 8; +} + +static inline uint16_t do_rmulh_h(int32_t n, int32_t m) +{ + return (n * m + (1U << 15)) >> 16; +} + +static inline uint32_t do_rmulh_w(int64_t n, int64_t m) +{ + return (n * m + (1U << 31)) >> 32; +} + DO_2OP(vmulhsb, 1, int8_t, H1, do_mulh_b) DO_2OP(vmulhsh, 2, int16_t, H2, do_mulh_h) DO_2OP(vmulhsw, 4, int32_t, H4, do_mulh_w) DO_2OP(vmulhub, 1, uint8_t, H1, do_mulh_b) DO_2OP(vmulhuh, 2, uint16_t, H2, do_mulh_h) DO_2OP(vmulhuw, 4, uint32_t, H4, do_mulh_w) + +DO_2OP(vrmulhsb, 1, int8_t, H1, do_rmulh_b) +DO_2OP(vrmulhsh, 2, int16_t, H2, do_rmulh_h) +DO_2OP(vrmulhsw, 4, int32_t, H4, do_rmulh_w) +DO_2OP(vrmulhub, 1, uint8_t, H1, do_rmulh_b) +DO_2OP(vrmulhuh, 2, uint16_t, H2, do_rmulh_h) +DO_2OP(vrmulhuw, 4, uint32_t, H4, do_rmulh_w) diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index edea30ba1d7..7e9d852c6ff 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -381,3 +381,5 @@ DO_2OP(VSUB, vsub) DO_2OP(VMUL, vmul) DO_2OP(VMULH_S, vmulhs) DO_2OP(VMULH_U, vmulhu) +DO_2OP(VRMULH_S, vrmulhs) +DO_2OP(VRMULH_U, vrmulhu) --=20 2.20.1