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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id j6sm9827443wrm.97.2021.07.13.06.37.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Jul 2021 06:37:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=xdTiVrTGrjwqxBrVWc02ZyC5Zuxj4JEnIGJ5DSfl9U4=; b=AXeeUJfeCTahTk0Hs73SVfHTU3+XXQffQhq6aAS4UwsRCaCxnCXzeCQgCp8gZZ+Gkf bC55Qcx3c4lwH5PLeRJniY5IMp2RrANCfDv4Y08EmaUlSCw73xzTV3ga0gGyEdsWRtn5 /b1D0b7HKTYgZCOCMh0EjoWTeOgN1R8pl10X9jdwS6B/eHp1gTKn+8dzmA0axYfFI8A0 yXVtZJGsVYqyS2y+BztJ125ZUAejHKkSYrIbClWXpM93Bvxy5I6SBSvzkZc7gslhwGqk eYKc8Fn8FbQWG8tGKgoTZ15a7WAi1kUaidzG6trDZTL217/Wrm4akrGnX5mto2s4Fb95 vTsg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=xdTiVrTGrjwqxBrVWc02ZyC5Zuxj4JEnIGJ5DSfl9U4=; b=jvaaci+tEM/mBPSvqanxhZ/rcStlkuaOcKTmFq3Z9i85OmA90C6L7yUjcFxot4Fa0c c869uNlBDNB1goDRM2CWVqVP2u/HBrqKMBMi7IMjpNwqH4NmTjtILAoV/eQA9ib2h8D9 KJXfIBRISJveZb/4vzaPTsrvIdYe36+HrpBXfZa+URzfGJssVXff7gzjvEa5KeWkuvcu UMg8yBbbOeUFe57lUxzcQe2LOW0X84uxZt6ieBBxUI9MrfEpT9jWi1UdqKlIoUs8dh6T BrbLHRHZgfaBB1ruAevLu0FKz3zGOgEURvqCUldg+kk+IgFm+gstnGUeJ2ngzVteg2Yx SN4g== X-Gm-Message-State: AOAM530lDsIeN4LvKMSQZstfAGaDgBYHr0QnjPxWr8BZDZkEo1M7MWJN U+fQDJwXM/jielgvVclPC64Qhtord7K5N3ss X-Google-Smtp-Source: ABdhPJzySUwMdE76HsEfWvu8an/vcUOGr80w2pP6i8kmSmJvA0YWSWzv12hvNj2B3/JVKD90mTbw2w== X-Received: by 2002:a5d:420b:: with SMTP id n11mr5816072wrq.395.1626183471783; Tue, 13 Jul 2021 06:37:51 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH for-6.2 30/34] target/arm: Implement MVE VPNOT Date: Tue, 13 Jul 2021 14:37:22 +0100 Message-Id: <20210713133726.26842-31-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210713133726.26842-1-peter.maydell@linaro.org> References: <20210713133726.26842-1-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::435; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x435.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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1626185133474100001 Content-Type: text/plain; charset="utf-8" Implement the MVE VPNOT insn, which inverts the bits in VPR.P0 (subject to both predication and to beatwise execution). Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/helper-mve.h | 1 + target/arm/mve.decode | 1 + target/arm/mve_helper.c | 17 +++++++++++++++++ target/arm/translate-mve.c | 19 +++++++++++++++++++ 4 files changed, 38 insertions(+) diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h index c36640e75e9..5844bb891ed 100644 --- a/target/arm/helper-mve.h +++ b/target/arm/helper-mve.h @@ -123,6 +123,7 @@ DEF_HELPER_FLAGS_4(mve_vorn, TCG_CALL_NO_WG, void, env,= ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_veor, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) =20 DEF_HELPER_FLAGS_4(mve_vpsel, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_1(mve_vpnot, TCG_CALL_NO_WG, void, env) =20 DEF_HELPER_FLAGS_4(mve_vaddb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vaddh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index 6ac9cb8e4d4..82dc07bc30e 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -573,6 +573,7 @@ VCMPGT 1111 1110 0 . .. ... 1 ... 1 1111 0 0= . 0 ... 1 @vcmp VCMPLE 1111 1110 0 . .. ... 1 ... 1 1111 1 0 . 0 ... 1 @vcmp =20 { + VPNOT 1111 1110 0 0 11 000 1 000 0 1111 0100 1101 VPST 1111 1110 0 . 11 000 1 ... 0 1111 0100 1101 mask=3D%mask= _22_13 VCMPEQ_scalar 1111 1110 0 . .. ... 1 ... 0 1111 0 1 0 0 .... @vcmp_sca= lar } diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c index 40e652229d6..6efb3c69636 100644 --- a/target/arm/mve_helper.c +++ b/target/arm/mve_helper.c @@ -2214,6 +2214,23 @@ void HELPER(mve_vpsel)(CPUARMState *env, void *vd, v= oid *vn, void *vm) mve_advance_vpt(env); } =20 +void HELPER(mve_vpnot)(CPUARMState *env) +{ + /* + * P0 bits for unexecuted beats (where eci_mask is 0) are unchanged. + * P0 bits for predicated lanes in executed bits (where mask is 0) are= 0. + * P0 bits otherwise are inverted. + * (This is the same logic as VCMP.) + * This insn is itself subject to predication and to beat-wise executi= on, + * and after it executes VPT state advances in the usual way. + */ + uint16_t mask =3D mve_element_mask(env); + uint16_t eci_mask =3D mve_eci_mask(env); + uint16_t beatpred =3D ~env->v7m.vpr & mask; + env->v7m.vpr =3D (env->v7m.vpr & ~(uint32_t)eci_mask) | (beatpred & ec= i_mask); + mve_advance_vpt(env); +} + #define DO_1OP_SAT(OP, ESIZE, TYPE, FN) \ void HELPER(mve_##OP)(CPUARMState *env, void *vd, void *vm) \ { \ diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index 43f917e609e..be961864ada 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -889,6 +889,25 @@ static bool trans_VPST(DisasContext *s, arg_VPST *a) return true; } =20 +static bool trans_VPNOT(DisasContext *s, arg_VPNOT *a) +{ + /* + * Invert the predicate in VPR.P0. We have call out to + * a helper because this insn itself is beatwise and can + * be predicated. + */ + if (!dc_isar_feature(aa32_mve, s)) { + return false; + } + if (!mve_eci_check(s) || !vfp_access_check(s)) { + return true; + } + + gen_helper_mve_vpnot(cpu_env); + mve_update_eci(s); + return true; +} + static bool trans_VADDV(DisasContext *s, arg_VADDV *a) { /* VADDV: vector add across vector */ --=20 2.20.1