From nobody Thu Dec 18 22:25:41 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1519907364237593.1766238014579; Thu, 1 Mar 2018 04:29:24 -0800 (PST) Received: from localhost ([::1]:55831 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1erMhM-000610-O3 for importer@patchew.org; Thu, 01 Mar 2018 06:48:32 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34021) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1erMK6-0003vJ-7T for qemu-devel@nongnu.org; Thu, 01 Mar 2018 06:24:31 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1erMK5-0008E6-9T for qemu-devel@nongnu.org; Thu, 01 Mar 2018 06:24:30 -0500 Received: from orth.archaic.org.uk ([2001:8b0:1d0::2]:46720) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1erMK5-0008DQ-1X for qemu-devel@nongnu.org; Thu, 01 Mar 2018 06:24:29 -0500 Received: from pm215 by orth.archaic.org.uk with local (Exim 4.89) (envelope-from ) id 1erMK3-0000fm-TM for qemu-devel@nongnu.org; Thu, 01 Mar 2018 11:24:27 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Date: Thu, 1 Mar 2018 11:23:54 +0000 Message-Id: <20180301112403.12487-34-peter.maydell@linaro.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180301112403.12487-1-peter.maydell@linaro.org> References: <20180301112403.12487-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2001:8b0:1d0::2 Subject: [Qemu-devel] [PULL 33/42] arm/translate-a64: add FP16 FSQRT to simd_two_reg_misc_fp16 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 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: RSF_0 Z_629925259 SPT_0 From: Alex Benn=C3=A9e Signed-off-by: Alex Benn=C3=A9e Reviewed-by: Richard Henderson Message-id: 20180227143852.11175-26-alex.bennee@linaro.org Signed-off-by: Peter Maydell --- target/arm/helper-a64.h | 1 + target/arm/helper-a64.c | 13 +++++++++++++ target/arm/translate-a64.c | 5 +++++ 3 files changed, 19 insertions(+) diff --git a/target/arm/helper-a64.h b/target/arm/helper-a64.h index 339323fc3d..ef4ddfe9d8 100644 --- a/target/arm/helper-a64.h +++ b/target/arm/helper-a64.h @@ -80,3 +80,4 @@ DEF_HELPER_2(advsimd_rinth_exact, f16, f16, ptr) DEF_HELPER_2(advsimd_rinth, f16, f16, ptr) DEF_HELPER_2(advsimd_f16tosinth, i32, f16, ptr) DEF_HELPER_2(advsimd_f16touinth, i32, f16, ptr) +DEF_HELPER_2(sqrt_f16, f16, f16, ptr) diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c index 92a0d55a9c..afb25ad20c 100644 --- a/target/arm/helper-a64.c +++ b/target/arm/helper-a64.c @@ -828,3 +828,16 @@ uint32_t HELPER(advsimd_f16touinth)(float16 a, void *f= pstp) } return float16_to_uint16(a, fpst); } + +/* + * Square Root and Reciprocal square root + */ + +float16 HELPER(sqrt_f16)(float16 a, void *fpstp) +{ + float_status *s =3D fpstp; + + return float16_sqrt(a, s); +} + + diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 715dc4333d..1096ff48ac 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -11388,6 +11388,8 @@ static void disas_simd_two_reg_misc_fp16(DisasConte= xt *s, uint32_t insn) case 0x6f: /* FNEG */ need_fpst =3D false; break; + case 0x7f: /* FSQRT (vector) */ + break; default: fprintf(stderr, "%s: insn %#04x fpop %#2x\n", __func__, insn, fpop= ); g_assert_not_reached(); @@ -11502,6 +11504,9 @@ static void disas_simd_two_reg_misc_fp16(DisasConte= xt *s, uint32_t insn) case 0x6f: /* FNEG */ tcg_gen_xori_i32(tcg_res, tcg_op, 0x8000); break; + case 0x7f: /* FSQRT */ + gen_helper_sqrt_f16(tcg_res, tcg_op, tcg_fpstatus); + break; default: g_assert_not_reached(); } --=20 2.16.2