From nobody Mon Feb 9 20:10:53 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1605688496; cv=none; d=zohomail.com; s=zohoarc; b=DV7Vg/r0qsE19alRkzPUayn1kJnOxQT31aSJSAiHKt1uFaRTftk3RKPvu5/3fjqFL2+Ts+DTNZ9kK+NCfAQuyzAs0agckqjxAStU3kxksw2OKldgMub47bkVQiHqcv57KBJqJweAfpNB4kvFetYq0+lWOI8jcupLCF5PhWHp8CU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1605688496; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=Uk5OG9uc1EISaedrmN2IAjR/3Ptt8iCg5bDof/w6oYw=; b=VQKCYgI3CVKHa/aUx9wb9J+TXUGFAJncenfasm4l7w0xz/TiHIu90F6Rxg+gnCrthCIOmWabRS0D4aBaPHt0O7sGxgvounsG28dF6KrLtQe9h5CcvXPdpKa5hR6so6EZU1Ykz9rW4LQiNLqMEloTmOmluoxNgMxQtf/Ann1KQP4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1605688496104467.4032436428487; Wed, 18 Nov 2020 00:34:56 -0800 (PST) Received: from localhost ([::1]:42332 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kfIvW-0004m0-1B for importer@patchew.org; Wed, 18 Nov 2020 03:34:54 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:50508) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kfItG-00019A-KS for qemu-devel@nongnu.org; Wed, 18 Nov 2020 03:32:34 -0500 Received: from mail-pg1-x52e.google.com ([2607:f8b0:4864:20::52e]:45425) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kfItE-0004nb-7s for qemu-devel@nongnu.org; Wed, 18 Nov 2020 03:32:34 -0500 Received: by mail-pg1-x52e.google.com with SMTP id 62so677910pgg.12 for ; Wed, 18 Nov 2020 00:32:31 -0800 (PST) Received: from frankchang-ThinkPad-T490.internal.sifive.com (114-34-229-221.HINET-IP.hinet.net. [114.34.229.221]) by smtp.gmail.com with ESMTPSA id y10sm1618407pjm.34.2020.11.18.00.32.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Nov 2020 00:32:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=Uk5OG9uc1EISaedrmN2IAjR/3Ptt8iCg5bDof/w6oYw=; b=M+udbSRKsZXUTrU1Y9RQcIUNJ1xovJpsiaXTk6smo3ycPOvYg00uWWzbDTGqOgq+PZ CWuWHY440vUVn6+8F6zMhQyCKqEnpx/gCWsaDY5zo8FNmbFB5zBlLvA/71LDYGyS2ZgS EZkyi7fkStt3/fxojBa6cwnCCBwu2Z+k12bWqkvuBT6Ig7gyw7p/h67WNYkAv8gsslFN kGzjKxYy6tpkQaMgs/EWvymtBJiSj9eaUcE2Dpn8diVVJ6oY8CTbRe0yZoNO+xXqthhi B8Le2rX2nR6Yb2HRLUUo9nrEXBjVo2F0SrE2CsIuNaf/pSGJjaG5DrcAuLnOFGVzkS1E J4XA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Uk5OG9uc1EISaedrmN2IAjR/3Ptt8iCg5bDof/w6oYw=; b=pI6kAq2vNGemufS9Qrg4Hf5VfoKdFRJkRr/y2i7ijExhRgpOIF9ExcM2QYxc+DnDDd kAzl8UuoLC+ENLD121bKZO45GED+gs9BMUqRjyAqiDkI9rHy3YYp64g05OcH9OmzcF5k IdrqEJ9uqf6GefCJB0kZj5+QMfu5QX3Lk0FlVBeQz4fyjv/M84wditnYanmu/Dqy/kIj LIRrPY1Y2l+72oE1fIKXFobV8YompQ3w0GLhltAWltn8osb/Zvds2OzZgcpIzDlR2qpW O/SCIb1upULUHVw9QVyfRc465TRmtUfflKUEoSn9KbpoWMx/bD4BN0fc2IPLLYqWd0nj 6NPA== X-Gm-Message-State: AOAM532+QXVftn0u5ysr2mxEwu9IfUzdFtXPvECtBO+ivsyQB/JgU36w rzxCYQcsAroOe2xaNjcVnq6QMfpF5vrVnynMJFM= X-Google-Smtp-Source: ABdhPJzLqQTtTcRGHaOlY7s6/1suyDicvZM17kEfCFa3SMjO34uTOPO2z60h3TOq3dq1cBFytwYlbA== X-Received: by 2002:a62:7b4a:0:b029:18b:b3f:3fe6 with SMTP id w71-20020a627b4a0000b029018b0b3f3fe6mr3489019pfc.80.1605688350785; Wed, 18 Nov 2020 00:32:30 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC 05/15] target/riscv: rvb: pack two words into one register Date: Wed, 18 Nov 2020 16:29:43 +0800 Message-Id: <20201118083044.13992-6-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201118083044.13992-1-frank.chang@sifive.com> References: <20201118083044.13992-1-frank.chang@sifive.com> 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::52e; envelope-from=frank.chang@sifive.com; helo=mail-pg1-x52e.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=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: , Cc: Sagar Karandikar , Frank Chang , Bastian Koppelmann , Alistair Francis , Palmer Dabbelt , Kito Cheng Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Kito Cheng Signed-off-by: Kito Cheng --- target/riscv/insn32-64.decode | 3 + target/riscv/insn32.decode | 3 + target/riscv/insn_trans/trans_rvb.c.inc | 30 ++++++++ target/riscv/translate.c | 92 +++++++++++++++++++++++++ 4 files changed, 128 insertions(+) diff --git a/target/riscv/insn32-64.decode b/target/riscv/insn32-64.decode index d5bea5af273..2f00f96e36b 100644 --- a/target/riscv/insn32-64.decode +++ b/target/riscv/insn32-64.decode @@ -91,3 +91,6 @@ hsv_d 0110111 ..... ..... 100 00000 1110011 @r2_s clzw 011000000000 ..... 001 ..... 0011011 @r2 ctzw 011000000001 ..... 001 ..... 0011011 @r2 pcntw 011000000010 ..... 001 ..... 0011011 @r2 + +packw 0000100 .......... 100 ..... 0111011 @r +packuw 0100100 .......... 100 ..... 0111011 @r diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 29a3d4c6ebc..79aa40f03dd 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -602,3 +602,6 @@ pcnt 011000000010 ..... 001 ..... 0010011 @r2 andn 0100000 .......... 111 ..... 0110011 @r orn 0100000 .......... 110 ..... 0110011 @r xnor 0100000 .......... 100 ..... 0110011 @r +pack 0000100 .......... 100 ..... 0110011 @r +packu 0100100 .......... 100 ..... 0110011 @r +packh 0000100 .......... 111 ..... 0110011 @r diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_tr= ans/trans_rvb.c.inc index be25431e990..9257373ae0b 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -53,6 +53,24 @@ static bool trans_xnor(DisasContext *ctx, arg_xnor *a) return gen_arith(ctx, a, &gen_xnor); } =20 +static bool trans_pack(DisasContext *ctx, arg_pack *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_arith(ctx, a, &gen_pack); +} + +static bool trans_packu(DisasContext *ctx, arg_packu *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_arith(ctx, a, &gen_packu); +} + +static bool trans_packh(DisasContext *ctx, arg_packh *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_arith(ctx, a, &gen_packh); +} + /* RV64-only instructions */ #ifdef TARGET_RISCV64 =20 @@ -74,4 +92,16 @@ static bool trans_pcntw(DisasContext *ctx, arg_pcntw *a) return gen_unary(ctx, a, &gen_pcntw); } =20 +static bool trans_packw(DisasContext *ctx, arg_packw *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_arith(ctx, a, &gen_packw); +} + +static bool trans_packuw(DisasContext *ctx, arg_packuw *a) +{ + REQUIRE_EXT(ctx, RVB); + return gen_arith(ctx, a, &gen_packuw); +} + #endif diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 254a9dca8c2..fb30ee83aa8 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -743,6 +743,65 @@ static void gen_xnor(TCGv ret, TCGv arg1, TCGv arg2) tcg_temp_free(t); } =20 +static void gen_pack(TCGv ret, TCGv arg1, TCGv arg2) +{ + TCGv lower, higher; + lower =3D tcg_temp_new(); + higher =3D tcg_temp_new(); + +#ifdef TARGET_RISCV64 + tcg_gen_ext32u_tl(lower, arg1); + tcg_gen_shli_tl(higher, arg2, 32); +#else + tcg_gen_ext16u_tl(lower, arg1); + tcg_gen_shli_tl(higher, arg2, 16); +#endif + + tcg_gen_or_tl(ret, higher, lower); + + tcg_temp_free(lower); + tcg_temp_free(higher); +} + +static void gen_packu(TCGv ret, TCGv arg1, TCGv arg2) +{ + TCGv lower, higher; + lower =3D tcg_temp_new(); + higher =3D tcg_temp_new(); + +#ifdef TARGET_RISCV64 + tcg_gen_shri_tl(lower, arg1, 32); + tcg_gen_shri_tl(higher, arg2, 32); + tcg_gen_shli_tl(higher, higher, 32); +#else + tcg_gen_shri_tl(lower, arg1, 16); + tcg_gen_shri_tl(higher, arg2, 16); + tcg_gen_shli_tl(higher, higher, 16); +#endif + + tcg_gen_or_tl(ret, higher, lower); + + tcg_temp_free(lower); + tcg_temp_free(higher); +} + +static void gen_packh(TCGv ret, TCGv arg1, TCGv arg2) +{ + TCGv lower, higher; + lower =3D tcg_temp_new(); + higher =3D tcg_temp_new(); + + tcg_gen_ext8u_tl(lower, arg1); + tcg_gen_ext8u_tl(higher, arg2); + tcg_gen_shli_tl(higher, higher, 8); + + tcg_gen_or_tl(ret, higher, lower); + + tcg_temp_free(lower); + tcg_temp_free(higher); +} + + #ifdef TARGET_RISCV64 =20 static bool gen_cxzw(DisasContext *ctx, arg_r2 *a, @@ -775,6 +834,39 @@ static void gen_pcntw(TCGv ret, TCGv arg1) tcg_gen_ctpop_tl(ret, arg1); } =20 +static void gen_packw(TCGv ret, TCGv arg1, TCGv arg2) +{ + TCGv lower, higher; + lower =3D tcg_temp_new(); + higher =3D tcg_temp_new(); + + tcg_gen_ext16u_tl(lower, arg1); + tcg_gen_shli_tl(higher, arg2, 16); + tcg_gen_or_tl(ret, higher, lower); + + tcg_gen_ext32s_tl(ret, ret); + + tcg_temp_free(lower); + tcg_temp_free(higher); +} + +static void gen_packuw(TCGv ret, TCGv arg1, TCGv arg2) +{ + TCGv lower, higher; + lower =3D tcg_temp_new(); + higher =3D tcg_temp_new(); + + tcg_gen_shri_tl(lower, arg1, 16); + tcg_gen_shri_tl(higher, arg2, 16); + tcg_gen_shli_tl(higher, higher, 16); + tcg_gen_or_tl(ret, higher, lower); + + tcg_gen_ext32s_tl(ret, ret); + + tcg_temp_free(lower); + tcg_temp_free(higher); +} + #endif =20 static bool gen_arith(DisasContext *ctx, arg_r *a, --=20 2.17.1