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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id b14sm24499091wrj.93.2020.08.24.07.29.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2020 07:29:46 -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=NMSPmq90eeOSm/NXmzjAinaEm6q3yoUxSbTmiLxpgNs=; b=zjiKsNaKbr+B2y/Mg9R+HDtm4qAfBEjUnGMCxikmLEoE+wuuQdulBbvFGE30BpYg1O w31PZOYl9hgKHhIAY4VsNupdCQZyMYtcnaQgsC/8ILu+wGh1esShVDLaiziuX5xfO7pr 6V9S3SerHfnHN8vvkm+O3okA6SnaujzPa7FN5vlpEWg8mV82soJewQKWsUVLb7q6ZjwV 4BR3dWsO/RAwiysvWLxkguGbPJwe5IykXIMMk3FtBXsgg+PkUQxRsTzFas68XRbMJYiL 9pitx4zOQFDC7pvmGc0oj9voAMJaPajTiSaU+jMZtEt6VggqKcHRaID7JkW8EHxTXHQr XzIw== 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=NMSPmq90eeOSm/NXmzjAinaEm6q3yoUxSbTmiLxpgNs=; b=IhwlsUucJQefJalurl60rM876DJlF0IEpUTbPJ28roAlhy5K5c/akVzeGuNmHHfpBh hcBAPaQGpcOlv46EGqwq12DENT3M2j4zVE1xpiR8dBDJ/IM+9MipPVhgWpqUIwmeja4o Ue4zCj1NhcDgGmFONJjWrCoe8yKjPznd1gXKNtQyScit1g++Wt5nQSVv2rfOVEXy/rPB CggYVJc1sx8EG4bQ2xPfh58lDTV2vPBf65t4GV6vGISlG8B+6LPhtwBq255K3zZHez4M jHDCj11EeW5zZLQZCGXuHmKGpgotAFaxIZ03ZOLtjn2B6fgvG2/46zrHDdfTp3bZk/ri 9TOA== X-Gm-Message-State: AOAM5337P+pLUcuMggPugvzFoVpTJ8+jCzwJQrZhPN1C5denZh409NPa 6QkSOp0db59ZdZHHXFlA0xXS9wMCA3NcjpZ2 X-Google-Smtp-Source: ABdhPJyaWLb9vFcMfX/phM8PskDFp72QfKxUMgTM6yzeHw2AuJTIq9ABAG8/oeV90bMRiKbcj3xYRw== X-Received: by 2002:adf:d84c:: with SMTP id k12mr6107643wrl.250.1598279387457; Mon, 24 Aug 2020 07:29:47 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 10/22] target/arm: Implement VFP fp16 VCMP Date: Mon, 24 Aug 2020 15:29:22 +0100 Message-Id: <20200824142934.20850-11-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200824142934.20850-1-peter.maydell@linaro.org> References: <20200824142934.20850-1-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::444; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x444.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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: , 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 fp16 version of VCMP. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/helper.h | 2 ++ target/arm/vfp.decode | 2 ++ target/arm/vfp_helper.c | 15 +++++++------ target/arm/translate-vfp.c.inc | 39 ++++++++++++++++++++++++++++++++++ 4 files changed, 51 insertions(+), 7 deletions(-) diff --git a/target/arm/helper.h b/target/arm/helper.h index ab3a9bd5d7e..278b4e47fd2 100644 --- a/target/arm/helper.h +++ b/target/arm/helper.h @@ -134,8 +134,10 @@ DEF_HELPER_1(vfp_absd, f64, f64) DEF_HELPER_2(vfp_sqrth, f32, f32, env) DEF_HELPER_2(vfp_sqrts, f32, f32, env) DEF_HELPER_2(vfp_sqrtd, f64, f64, env) +DEF_HELPER_3(vfp_cmph, void, f32, f32, env) DEF_HELPER_3(vfp_cmps, void, f32, f32, env) DEF_HELPER_3(vfp_cmpd, void, f64, f64, env) +DEF_HELPER_3(vfp_cmpeh, void, f32, f32, env) DEF_HELPER_3(vfp_cmpes, void, f32, f32, env) DEF_HELPER_3(vfp_cmped, void, f64, f64, env) =20 diff --git a/target/arm/vfp.decode b/target/arm/vfp.decode index c898183771b..b213da4b55d 100644 --- a/target/arm/vfp.decode +++ b/target/arm/vfp.decode @@ -176,6 +176,8 @@ VSQRT_hp ---- 1110 1.11 0001 .... 1001 11.0 .... = @vfp_dm_ss VSQRT_sp ---- 1110 1.11 0001 .... 1010 11.0 .... @vfp_dm_ss VSQRT_dp ---- 1110 1.11 0001 .... 1011 11.0 .... @vfp_dm_dd =20 +VCMP_hp ---- 1110 1.11 010 z:1 .... 1001 e:1 1.0 .... \ + vd=3D%vd_sp vm=3D%vm_sp VCMP_sp ---- 1110 1.11 010 z:1 .... 1010 e:1 1.0 .... \ vd=3D%vd_sp vm=3D%vm_sp VCMP_dp ---- 1110 1.11 010 z:1 .... 1011 e:1 1.0 .... \ diff --git a/target/arm/vfp_helper.c b/target/arm/vfp_helper.c index 2f04dcf0582..0297b102c24 100644 --- a/target/arm/vfp_helper.c +++ b/target/arm/vfp_helper.c @@ -330,19 +330,20 @@ static void softfloat_to_vfp_compare(CPUARMState *env= , FloatRelation cmp) } =20 /* XXX: check quiet/signaling case */ -#define DO_VFP_cmp(p, type) \ -void VFP_HELPER(cmp, p)(type a, type b, CPUARMState *env) \ +#define DO_VFP_cmp(P, FLOATTYPE, ARGTYPE, FPST) \ +void VFP_HELPER(cmp, P)(ARGTYPE a, ARGTYPE b, CPUARMState *env) \ { \ softfloat_to_vfp_compare(env, \ - type ## _compare_quiet(a, b, &env->vfp.fp_status)); \ + FLOATTYPE ## _compare_quiet(a, b, &env->vfp.FPST)); \ } \ -void VFP_HELPER(cmpe, p)(type a, type b, CPUARMState *env) \ +void VFP_HELPER(cmpe, P)(ARGTYPE a, ARGTYPE b, CPUARMState *env) \ { \ softfloat_to_vfp_compare(env, \ - type ## _compare(a, b, &env->vfp.fp_status)); \ + FLOATTYPE ## _compare(a, b, &env->vfp.FPST)); \ } -DO_VFP_cmp(s, float32) -DO_VFP_cmp(d, float64) +DO_VFP_cmp(h, float16, float32, fp_status_f16) +DO_VFP_cmp(s, float32, float32, fp_status) +DO_VFP_cmp(d, float64, float64, fp_status) #undef DO_VFP_cmp =20 /* Integer to float and float to integer conversions */ diff --git a/target/arm/translate-vfp.c.inc b/target/arm/translate-vfp.c.inc index c864178ad4e..00a6363e1e1 100644 --- a/target/arm/translate-vfp.c.inc +++ b/target/arm/translate-vfp.c.inc @@ -2325,6 +2325,45 @@ DO_VFP_2OP(VSQRT, hp, gen_VSQRT_hp) DO_VFP_2OP(VSQRT, sp, gen_VSQRT_sp) DO_VFP_2OP(VSQRT, dp, gen_VSQRT_dp) =20 +static bool trans_VCMP_hp(DisasContext *s, arg_VCMP_sp *a) +{ + TCGv_i32 vd, vm; + + if (!dc_isar_feature(aa32_fp16_arith, s)) { + return false; + } + + /* Vm/M bits must be zero for the Z variant */ + if (a->z && a->vm !=3D 0) { + return false; + } + + if (!vfp_access_check(s)) { + return true; + } + + vd =3D tcg_temp_new_i32(); + vm =3D tcg_temp_new_i32(); + + neon_load_reg32(vd, a->vd); + if (a->z) { + tcg_gen_movi_i32(vm, 0); + } else { + neon_load_reg32(vm, a->vm); + } + + if (a->e) { + gen_helper_vfp_cmpeh(vd, vm, cpu_env); + } else { + gen_helper_vfp_cmph(vd, vm, cpu_env); + } + + tcg_temp_free_i32(vd); + tcg_temp_free_i32(vm); + + return true; +} + static bool trans_VCMP_sp(DisasContext *s, arg_VCMP_sp *a) { TCGv_i32 vd, vm; --=20 2.20.1