From nobody Fri Dec 19 20:34:14 2025 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; dmarc=fail(p=none dis=none) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1634661165482121.25702140795693; Tue, 19 Oct 2021 09:32:45 -0700 (PDT) Received: from localhost ([::1]:48670 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mcs2e-0000yO-8M for importer@patchew.org; Tue, 19 Oct 2021 12:32:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54462) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mcqz2-0005CI-A4 for qemu-devel@nongnu.org; Tue, 19 Oct 2021 11:24:56 -0400 Received: from mail-pl1-x634.google.com ([2607:f8b0:4864:20::634]:45749) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mcqyu-0007Ze-6j for qemu-devel@nongnu.org; Tue, 19 Oct 2021 11:24:55 -0400 Received: by mail-pl1-x634.google.com with SMTP id s1so12086287plg.12 for ; Tue, 19 Oct 2021 08:24:47 -0700 (PDT) Received: from localhost.localdomain ([71.212.134.125]) by smtp.gmail.com with ESMTPSA id i2sm3293814pjt.19.2021.10.19.08.24.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Oct 2021 08:24:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=70ix3AhGljp8w7VYIEJb5B8tKM59m/WakgkEPwbsgro=; b=UiZazeEmfmFIwl/fnVf2oVa9qmGGbUcPmAvLbJ8aFZ8HnmGHVEmelARF5uE6yMS3U/ VCcHh9zUoRDXDCWwVV6kX+gBg/a+7iX9k5/GLzuSJX/fesMbxgN3bTmLbzdezLRXWqNI 8QQfHq7ra/I0Y+z3Sci/Esdnlei4aLkeX5Q3/vAMFMfjQeeLSj9sM4Z9XK6kVu3wPIX7 5x9BKfG6942D/krghcWaUT4oM5d6yITyTyQXSjFCcSdlv2x8AXwQ9kikaCruILe0sF6Q +SO8FZX5NKAtA/TTR2iJvnomv5lcl5vOh5weJLDsE1C9yMFkVlmUNsHUffOLKp9bo5yr ZbSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=70ix3AhGljp8w7VYIEJb5B8tKM59m/WakgkEPwbsgro=; b=6K3becVLMQNTCI8Sk7kD+PZPfgIjAcJ3f7en445POF6Uvn5snhcOqLX3GjFijb9ayn Ew5MBzRGnxkTqqjpR6x/LluuZvomeuXt9Detz0Rd3O+aQ1UQbK96oATS2GgnVszcwUfu cvKs6b5Wv+/YWw4M8BBalWauHq6chddcp+Q9moFjGcimCatjApa1MiznfBk4XmyOEi6E LMPkmeqXEMJkwXJ3kCHdOgLZ6xMleAVno72pZV5woL8cBn1CGHcXXEdgL83yUtH84raU UBc65zbhwPknh3aXvB2iWhu90vjAcYl8zfOC6wPvzV1YRVnbuldhfwdyYiWE25HPcZsD kIzg== X-Gm-Message-State: AOAM532rBXI2uDI7xr86CgquMua/lQSKy+D7aJawMmd6EwCdvYpW6Fy/ oXyqd29avSXpr7NKyfJ2UQZje+WlO+idUQ== X-Google-Smtp-Source: ABdhPJwFcM15n2Q3dZIiaBRsgLfF828KElAA22XixQ1dNDvD/fu56fuU/x+Yg4j0GE8okRZOrOQ2Ww== X-Received: by 2002:a17:902:ed94:b0:138:ca3a:425d with SMTP id e20-20020a170902ed9400b00138ca3a425dmr34238412plj.78.1634657086679; Tue, 19 Oct 2021 08:24:46 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v5 10/16] target/riscv: Use gen_arith_per_ol for RVM Date: Tue, 19 Oct 2021 08:24:32 -0700 Message-Id: <20211019152438.269077-11-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211019152438.269077-1-richard.henderson@linaro.org> References: <20211019152438.269077-1-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::634; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x634.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=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: , Cc: alistair.francis@wdc.com, qemu-riscv@nongnu.org, zhiwei_liu@c-sky.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1634661168822100001 Content-Type: text/plain; charset="utf-8" The multiply high-part instructions require a separate implementation for RV32 when TARGET_LONG_BITS =3D=3D 64. Reviewed-by: LIU Zhiwei Reviewed-by: Alistair Francis Signed-off-by: Richard Henderson --- target/riscv/translate.c | 16 +++++++++++++++ target/riscv/insn_trans/trans_rvm.c.inc | 26 ++++++++++++++++++++++--- 2 files changed, 39 insertions(+), 3 deletions(-) diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 6ed925c003..5d54570cc9 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -403,6 +403,22 @@ static bool gen_arith(DisasContext *ctx, arg_r *a, Dis= asExtend ext, return true; } =20 +static bool gen_arith_per_ol(DisasContext *ctx, arg_r *a, DisasExtend ext, + void (*f_tl)(TCGv, TCGv, TCGv), + void (*f_32)(TCGv, TCGv, TCGv)) +{ + int olen =3D get_olen(ctx); + + if (olen !=3D TARGET_LONG_BITS) { + if (olen =3D=3D 32) { + f_tl =3D f_32; + } else { + g_assert_not_reached(); + } + } + return gen_arith(ctx, a, ext, f_tl); +} + static bool gen_shift_imm_fn(DisasContext *ctx, arg_shift *a, DisasExtend = ext, void (*func)(TCGv, TCGv, target_long)) { diff --git a/target/riscv/insn_trans/trans_rvm.c.inc b/target/riscv/insn_tr= ans/trans_rvm.c.inc index 9a1fe3c799..2af0e5c139 100644 --- a/target/riscv/insn_trans/trans_rvm.c.inc +++ b/target/riscv/insn_trans/trans_rvm.c.inc @@ -33,10 +33,16 @@ static void gen_mulh(TCGv ret, TCGv s1, TCGv s2) tcg_temp_free(discard); } =20 +static void gen_mulh_w(TCGv ret, TCGv s1, TCGv s2) +{ + tcg_gen_mul_tl(ret, s1, s2); + tcg_gen_sari_tl(ret, ret, 32); +} + static bool trans_mulh(DisasContext *ctx, arg_mulh *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, EXT_NONE, gen_mulh); + return gen_arith_per_ol(ctx, a, EXT_SIGN, gen_mulh, gen_mulh_w); } =20 static void gen_mulhsu(TCGv ret, TCGv arg1, TCGv arg2) @@ -54,10 +60,23 @@ static void gen_mulhsu(TCGv ret, TCGv arg1, TCGv arg2) tcg_temp_free(rh); } =20 +static void gen_mulhsu_w(TCGv ret, TCGv arg1, TCGv arg2) +{ + TCGv t1 =3D tcg_temp_new(); + TCGv t2 =3D tcg_temp_new(); + + tcg_gen_ext32s_tl(t1, arg1); + tcg_gen_ext32u_tl(t2, arg2); + tcg_gen_mul_tl(ret, t1, t2); + tcg_temp_free(t1); + tcg_temp_free(t2); + tcg_gen_sari_tl(ret, ret, 32); +} + static bool trans_mulhsu(DisasContext *ctx, arg_mulhsu *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, EXT_NONE, gen_mulhsu); + return gen_arith_per_ol(ctx, a, EXT_NONE, gen_mulhsu, gen_mulhsu_w); } =20 static void gen_mulhu(TCGv ret, TCGv s1, TCGv s2) @@ -71,7 +90,8 @@ static void gen_mulhu(TCGv ret, TCGv s1, TCGv s2) static bool trans_mulhu(DisasContext *ctx, arg_mulhu *a) { REQUIRE_EXT(ctx, RVM); - return gen_arith(ctx, a, EXT_NONE, gen_mulhu); + /* gen_mulh_w works for either sign as input. */ + return gen_arith_per_ol(ctx, a, EXT_ZERO, gen_mulhu, gen_mulh_w); } =20 static void gen_div(TCGv ret, TCGv source1, TCGv source2) --=20 2.25.1