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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id i17sm1341908wrc.38.2021.08.26.06.17.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Aug 2021 06:17:38 -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=bkuWlzNSI2yuRBQTkDjmPVrmm9Ffu+LTHOZ/atHURyg=; b=QSyyflhOUYN+l/ld38/IqEv7jqYjFUWX2aeYLRBAtZ2fB3xY5sBO5lRo7l6AK7rp9/ q3T3E7JZlkm4GJH8piQy7INyod3dxfSt7cB057PTFOF16Ku6Sq+cXaRahFlrm55TcJa4 nnJt7y6PesfZDyKDCa9ccy5yl3qUpOxYWW52N0G9+PVdgbWH8Orhy8Kk5Xnu8e8p7SCJ 4BQ1q2etgIDpxAziEWYOn+t6Uq/E9ZoISjL0o047piny3lzvyOMzvaLJv8q/7N5HVo1i j70hKlaEfEUo4Ve/WPCdMCsnp8+4LSrNENFeyb9z8igAPyx3L6OMo5OqvIRE6JCGJluo sv0A== 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=bkuWlzNSI2yuRBQTkDjmPVrmm9Ffu+LTHOZ/atHURyg=; b=Pb389gzPlxmiQUnRtFH9IoP8reL7BDbYXZz8DLm5EZNidFq0+IWAQ8AVQWdJP2K1+q v7YPEFRZIkZ7GL8+z5X1sc7ZoXHH2UCYOeQNxeLBhB9K5fJDCiBWRpBZmGlPuUWguadl zfkJKWLC2DoNhxn+h0g3BlNJFAyVNuMjHTZdV/BXhDZCqi9WchitoEG1ycfvFsmrLWUj pJwzxLHrdC5z0r/sSqR+6JaVvWKaQw4cjWPnwzRbaHPvOP9WH+Wqz395eX0V+LtY9OWQ SCbTjLjMvrgkyc9DZdSqTdb6Gqwxme9yGxXfMDaS65usgKzuvtnBChZ4lt4SNK/lt2Y1 htBQ== X-Gm-Message-State: AOAM531y+kHXRFkY9U3I3hu936W9B5bJzI3UvsbBXNrk/bRW9ahvOAS7 08Oxy6jET10IbjaLrnbzUdnflnb7Q00mjA== X-Google-Smtp-Source: ABdhPJwGclcnnYQe98kFhn9W6rgrqKs3LCeWEnos6SE3xeoPNfGSAw2DkU8h1azMZQCTpl6FN3wHaw== X-Received: by 2002:a5d:51ca:: with SMTP id n10mr3876460wrv.119.1629983859042; Thu, 26 Aug 2021 06:17:39 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v2 14/18] target/arm: Implement MVE VCVT between fp and integer Date: Thu, 26 Aug 2021 14:17:21 +0100 Message-Id: <20210826131725.22449-15-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210826131725.22449-1-peter.maydell@linaro.org> References: <20210826131725.22449-1-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: 1629985312105100001 Content-Type: text/plain; charset="utf-8" Implement the MVE "VCVT (between floating-point and integer)" insn. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/mve.decode | 7 +++++++ target/arm/translate-mve.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index d9fcc42d36d..9a40ff9f43c 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -790,3 +790,10 @@ VCVT_UF_fixed 1111 1111 1 . ...... ... 0 11 . 0 01= . 1 ... 0 @vcvt =20 VCVT_FS_fixed 1110 1111 1 . ...... ... 0 11 . 1 01 . 1 ... 0 @vcvt VCVT_FU_fixed 1111 1111 1 . ...... ... 0 11 . 1 01 . 1 ... 0 @vcvt + +# VCVT between floating point and integer (halfprec and single); +# VCVT_, S =3D signed int, U =3D unsigned int, F =3D float +VCVT_SF 1111 1111 1 . 11 .. 11 ... 0 011 00 1 . 0 ... 0 @1op +VCVT_UF 1111 1111 1 . 11 .. 11 ... 0 011 01 1 . 0 ... 0 @1op +VCVT_FS 1111 1111 1 . 11 .. 11 ... 0 011 10 1 . 0 ... 0 @1op +VCVT_FU 1111 1111 1 . 11 .. 11 ... 0 011 11 1 . 0 ... 0 @1op diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index 9269dbc3324..351033af1ec 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -543,6 +543,38 @@ DO_1OP(VQNEG, vqneg) DO_1OP(VMAXA, vmaxa) DO_1OP(VMINA, vmina) =20 +/* + * For simple float/int conversions we use the fixed-point + * conversion helpers with a zero shift count + */ +#define DO_VCVT(INSN, HFN, SFN) \ + static void gen_##INSN##h(TCGv_ptr env, TCGv_ptr qd, TCGv_ptr qm) \ + { \ + gen_helper_mve_##HFN(env, qd, qm, tcg_constant_i32(0)); \ + } \ + static void gen_##INSN##s(TCGv_ptr env, TCGv_ptr qd, TCGv_ptr qm) \ + { \ + gen_helper_mve_##SFN(env, qd, qm, tcg_constant_i32(0)); \ + } \ + static bool trans_##INSN(DisasContext *s, arg_1op *a) \ + { \ + static MVEGenOneOpFn * const fns[] =3D { \ + NULL, \ + gen_##INSN##h, \ + gen_##INSN##s, \ + NULL, \ + }; \ + if (!dc_isar_feature(aa32_mve_fp, s)) { \ + return false; \ + } \ + return do_1op(s, a, fns[a->size]); \ + } + +DO_VCVT(VCVT_SF, vcvt_sh, vcvt_sf) +DO_VCVT(VCVT_UF, vcvt_uh, vcvt_uf) +DO_VCVT(VCVT_FS, vcvt_hs, vcvt_fs) +DO_VCVT(VCVT_FU, vcvt_hu, vcvt_fu) + /* Narrowing moves: only size 0 and 1 are valid */ #define DO_VMOVN(INSN, FN) \ static bool trans_##INSN(DisasContext *s, arg_1op *a) \ --=20 2.20.1