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[174.21.72.5]) by smtp.gmail.com with ESMTPSA id pv7-20020a17090b3c8700b002a5f44353d2sm8958232pjb.7.2024.05.05.18.04.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 May 2024 18:04:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1714957470; x=1715562270; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=XbPodXVfNYDOBeFPuI23bmSPTaq8W6PthVSB/YmIGHc=; b=xEJDXnh2pC61OPsT3B2r4ySQf/qWqVEwuUKICjBbdXynHLB4OrSR5nah8Xkukc5YYX xSch0ttaOtU2dy6Gv53AwO0+E0bXnhf5t3bUmd05BUDbBUzGHGXciIDFucL4n3uk5Ba0 dDYusYRdK64Eak0x0TypzviXBj3iAmuJYHpMyXn5BFjgwR/P6U9RUWl+wWA5vBLgI+U+ 0eDDsgcXoT4X1HqdrZsheQMmIJFaj16XO1+nnngNFnC7IY8LQiFKfZOR1d7zrdM80bUM 7ymAziiFZ8Q0m5jthHOVZe14QXks6c88s1tUmSbN7S6H1rgUDcOPGtEAgUilS/hfTwb5 zrBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714957470; x=1715562270; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=XbPodXVfNYDOBeFPuI23bmSPTaq8W6PthVSB/YmIGHc=; b=DbVzaig7AvqDkZo+eADY+bLsIdEkZ0W1xL/OblvIYd+eJjKdFAKDg9dzMcJh36BmAB 9cuuXTuYBboxb7QTkxUWDzSBSarn7D4Qg9Zi6d8D7a1U1dlLlHWAzN3lgh0zw0KpuFDm MKbCcM42RuANJ4BpWtL01eaaB9GR3eN8ZgAOM+Ji8pwPEUzNISg9QToCyrGqOBcz7lsD 9JLmritY5Avdif6r1iMepIjeju8p5YnMj+4z04/nN/rCbgRlYCujoz7hl2CxqYx/lac5 nHDJlPARjZbehf7eA/mCn5AhemCLWZ7zRM7RgSaoS/T79Ssze6z4x1UaJc5WKeogFeYS PcAA== X-Gm-Message-State: AOJu0Yz4wjeavLBMKtUFpe9wK692Z2qRg66BKMyI9ReWvvbyiiWeZe9y l+i8sb/NCSWkMLV1kIfzcpGYL1G6p4frPnanJGS9CVafEphwuH32ZMxo9/JZLFjO0nsX+wkLYfF J X-Google-Smtp-Source: AGHT+IH1nKlQX1OvMfSGrqLWnpfiKJH0Bzm4PKXM/WrQ+1I99uqS38yQ4ASj2+dTUC4tVSTITNzObg== X-Received: by 2002:a17:90a:650a:b0:2a2:70f6:8f67 with SMTP id i10-20020a17090a650a00b002a270f68f67mr7393275pjj.30.1714957469835; Sun, 05 May 2024 18:04:29 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH 30/57] target/arm: Improve vector UQADD, UQSUB, SQADD, SQSUB Date: Sun, 5 May 2024 18:03:36 -0700 Message-Id: <20240506010403.6204-31-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240506010403.6204-1-richard.henderson@linaro.org> References: <20240506010403.6204-1-richard.henderson@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=2607:f8b0:4864:20::1030; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1030.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, 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: 2.1.29 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1714958118421100007 Content-Type: text/plain; charset="utf-8" No need for a full comparison; xor produces non-zero bits for QC just fine. Signed-off-by: Richard Henderson --- target/arm/tcg/gengvec.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/target/arm/tcg/gengvec.c b/target/arm/tcg/gengvec.c index 22c9d17dce..bfe6885a01 100644 --- a/target/arm/tcg/gengvec.c +++ b/target/arm/tcg/gengvec.c @@ -1217,21 +1217,21 @@ void gen_gvec_sshl(unsigned vece, uint32_t rd_ofs, = uint32_t rn_ofs, tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]); } =20 -static void gen_uqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, +static void gen_uqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec qc, TCGv_vec a, TCGv_vec b) { TCGv_vec x =3D tcg_temp_new_vec_matching(t); tcg_gen_add_vec(vece, x, a, b); tcg_gen_usadd_vec(vece, t, a, b); - tcg_gen_cmp_vec(TCG_COND_NE, vece, x, x, t); - tcg_gen_or_vec(vece, sat, sat, x); + tcg_gen_xor_vec(vece, x, x, t); + tcg_gen_or_vec(vece, qc, qc, x); } =20 void gen_gvec_uqadd_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz) { static const TCGOpcode vecop_list[] =3D { - INDEX_op_usadd_vec, INDEX_op_cmp_vec, INDEX_op_add_vec, 0 + INDEX_op_usadd_vec, INDEX_op_add_vec, 0 }; static const GVecGen4 ops[4] =3D { { .fniv =3D gen_uqadd_vec, @@ -1259,21 +1259,21 @@ void gen_gvec_uqadd_qc(unsigned vece, uint32_t rd_o= fs, uint32_t rn_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]); } =20 -static void gen_sqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, +static void gen_sqadd_vec(unsigned vece, TCGv_vec t, TCGv_vec qc, TCGv_vec a, TCGv_vec b) { TCGv_vec x =3D tcg_temp_new_vec_matching(t); tcg_gen_add_vec(vece, x, a, b); tcg_gen_ssadd_vec(vece, t, a, b); - tcg_gen_cmp_vec(TCG_COND_NE, vece, x, x, t); - tcg_gen_or_vec(vece, sat, sat, x); + tcg_gen_xor_vec(vece, x, x, t); + tcg_gen_or_vec(vece, qc, qc, x); } =20 void gen_gvec_sqadd_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz) { static const TCGOpcode vecop_list[] =3D { - INDEX_op_ssadd_vec, INDEX_op_cmp_vec, INDEX_op_add_vec, 0 + INDEX_op_ssadd_vec, INDEX_op_add_vec, 0 }; static const GVecGen4 ops[4] =3D { { .fniv =3D gen_sqadd_vec, @@ -1301,21 +1301,21 @@ void gen_gvec_sqadd_qc(unsigned vece, uint32_t rd_o= fs, uint32_t rn_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]); } =20 -static void gen_uqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, +static void gen_uqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec qc, TCGv_vec a, TCGv_vec b) { TCGv_vec x =3D tcg_temp_new_vec_matching(t); tcg_gen_sub_vec(vece, x, a, b); tcg_gen_ussub_vec(vece, t, a, b); - tcg_gen_cmp_vec(TCG_COND_NE, vece, x, x, t); - tcg_gen_or_vec(vece, sat, sat, x); + tcg_gen_xor_vec(vece, x, x, t); + tcg_gen_or_vec(vece, qc, qc, x); } =20 void gen_gvec_uqsub_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz) { static const TCGOpcode vecop_list[] =3D { - INDEX_op_ussub_vec, INDEX_op_cmp_vec, INDEX_op_sub_vec, 0 + INDEX_op_ussub_vec, INDEX_op_sub_vec, 0 }; static const GVecGen4 ops[4] =3D { { .fniv =3D gen_uqsub_vec, @@ -1343,21 +1343,21 @@ void gen_gvec_uqsub_qc(unsigned vece, uint32_t rd_o= fs, uint32_t rn_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]); } =20 -static void gen_sqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec sat, +static void gen_sqsub_vec(unsigned vece, TCGv_vec t, TCGv_vec qc, TCGv_vec a, TCGv_vec b) { TCGv_vec x =3D tcg_temp_new_vec_matching(t); tcg_gen_sub_vec(vece, x, a, b); tcg_gen_sssub_vec(vece, t, a, b); - tcg_gen_cmp_vec(TCG_COND_NE, vece, x, x, t); - tcg_gen_or_vec(vece, sat, sat, x); + tcg_gen_xor_vec(vece, x, x, t); + tcg_gen_or_vec(vece, qc, qc, x); } =20 void gen_gvec_sqsub_qc(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz) { static const TCGOpcode vecop_list[] =3D { - INDEX_op_sssub_vec, INDEX_op_cmp_vec, INDEX_op_sub_vec, 0 + INDEX_op_sssub_vec, INDEX_op_sub_vec, 0 }; static const GVecGen4 ops[4] =3D { { .fniv =3D gen_sqsub_vec, --=20 2.34.1