From nobody Tue Feb 10 09:40:52 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; 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 1625805906942794.260851867629; Thu, 8 Jul 2021 21:45:06 -0700 (PDT) Received: from localhost ([::1]:48588 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m1iNt-0001F2-IQ for importer@patchew.org; Fri, 09 Jul 2021 00:45:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53682) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m1i5l-0006Cr-Qb for qemu-devel@nongnu.org; Fri, 09 Jul 2021 00:26:25 -0400 Received: from mail-pf1-x430.google.com ([2607:f8b0:4864:20::430]:41519) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m1i5d-0001St-3G for qemu-devel@nongnu.org; Fri, 09 Jul 2021 00:26:21 -0400 Received: by mail-pf1-x430.google.com with SMTP id f17so7582277pfj.8 for ; Thu, 08 Jul 2021 21:26:12 -0700 (PDT) Received: from localhost.localdomain ([71.212.149.176]) by smtp.gmail.com with ESMTPSA id y16sm4406727pfe.70.2021.07.08.21.26.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jul 2021 21:26:11 -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=DkRSjZK4s1X6JiwKyTRkh9Sv6TW6zjiR4pJsIp26yK4=; b=dYpR5sCQ/MBKQk+9TLiHzrj2ulvjmAuAd1wwtBlGHkxzlYrLO7GY+EBa88gM6m07rL v+drd/gYuUlRWVRQgwlcFv0XgRyAZ/laoF5ydVKtKj1IISxrbDxHUdccKyWi+EKifhob giijSTAtuXNRDhQ1E7tyb2JG1WkBQDaGdNpHLmKDB1TkjDlBhXEvtAwFq+0WtIHeMbYb Q5EDYz6aErTiPtTBH6qc44Wk7yq5Z9/za/GMrzC1ThAO/766sQKQneHep06QJajOmbvE UOKFGoppp7HQk0qdx24F3u8YYsGh4ciX57NNdeY7il2CPk9E5QbjjpY89vlHWCT8UWDO W2IQ== 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:mime-version:content-transfer-encoding; bh=DkRSjZK4s1X6JiwKyTRkh9Sv6TW6zjiR4pJsIp26yK4=; b=EIbUU1777Zgt/0L5GOBxe+k5xe1OtvdpO2cJbhfmVv35MFs+sJY6FcGieaio19HRjT 50bPaV+O5kwS4FWdD8fCw12xAEHHc4eCkl701HxwcjCQkEwI06PqzMu1N31ejgb3apGK qUg9BqK8TUS7Lul94NB7Y/vjWv51c1H4rtsmgHpH8isv0rO+s9R2psjuxxXBDt8Tv2Xf G+x6Yvm6V2k4olcoBFjJ01LirSOb8c9V+/WoV8hfa843XVz247QYwgcppoCEVqRcKRNH WYNq8lYM1tCKx2tPww4dcyjg1xaHEZ/Pywv7a1w/MGNcdXCduYglRWxpTyhO3vkPR0yZ TZuA== X-Gm-Message-State: AOAM530UamGGXCJo66e0AVax+LkieNDc5PQ9fbdMhE1Onw1n+9pRak9v Nb6qg0aHe6Q1koxeQ6Jmz7rPjrYHVoEusA== X-Google-Smtp-Source: ABdhPJyuubcrSP8Nsl6YWMhgWUEHvsG9aF1VeYJ8TDU8ntkUScv/w9VfxcnHaDRxyV8RyRtuthzpdA== X-Received: by 2002:a63:fa50:: with SMTP id g16mr36247530pgk.16.1625804771424; Thu, 08 Jul 2021 21:26:11 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 03/17] target/riscv: Use gpr_{src,dst} in shift operations Date: Thu, 8 Jul 2021 21:25:54 -0700 Message-Id: <20210709042608.883256-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210709042608.883256-1-richard.henderson@linaro.org> References: <20210709042608.883256-1-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::430; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x430.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 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: 1625805907971100001 Content-Type: text/plain; charset="utf-8" These operations are slightly more complicated since we need to crop the shift operand. Signed-off-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/translate.c | 68 +++++++++++++++------------------------- 1 file changed, 26 insertions(+), 42 deletions(-) diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 2cfcb849b8..a60b198623 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -778,18 +778,14 @@ static bool gen_arith(DisasContext *ctx, arg_r *a, static bool gen_shift(DisasContext *ctx, arg_r *a, void(*func)(TCGv, TCGv, TCGv)) { - TCGv source1 =3D tcg_temp_new(); - TCGv source2 =3D tcg_temp_new(); + TCGv dest =3D gpr_dst(ctx, a->rd); + TCGv src1 =3D gpr_src(ctx, a->rs1); + TCGv src2 =3D gpr_src(ctx, a->rs2); + TCGv ext2 =3D tcg_temp_new(); =20 - gen_get_gpr(source1, a->rs1); - gen_get_gpr(source2, a->rs2); - - tcg_gen_andi_tl(source2, source2, TARGET_LONG_BITS - 1); - (*func)(source1, source1, source2); - - gen_set_gpr(a->rd, source1); - tcg_temp_free(source1); - tcg_temp_free(source2); + tcg_gen_andi_tl(ext2, src2, TARGET_LONG_BITS - 1); + (*func)(dest, src1, ext2); + tcg_temp_free(ext2); return true; } =20 @@ -805,58 +801,46 @@ static uint32_t opcode_at(DisasContextBase *dcbase, t= arget_ulong pc) static bool gen_shifti(DisasContext *ctx, arg_shift *a, void(*func)(TCGv, TCGv, TCGv)) { + TCGv dest, src1, src2; + if (a->shamt >=3D TARGET_LONG_BITS) { return false; } =20 - TCGv source1 =3D tcg_temp_new(); - TCGv source2 =3D tcg_temp_new(); + dest =3D gpr_dst(ctx, a->rd); + src1 =3D gpr_src(ctx, a->rs1); + src2 =3D tcg_constant_tl(a->shamt); =20 - gen_get_gpr(source1, a->rs1); - - tcg_gen_movi_tl(source2, a->shamt); - (*func)(source1, source1, source2); - - gen_set_gpr(a->rd, source1); - tcg_temp_free(source1); - tcg_temp_free(source2); + (*func)(dest, src1, src2); return true; } =20 static bool gen_shiftw(DisasContext *ctx, arg_r *a, void(*func)(TCGv, TCGv, TCGv)) { - TCGv source1 =3D tcg_temp_new(); - TCGv source2 =3D tcg_temp_new(); + TCGv dest =3D gpr_dst(ctx, a->rd); + TCGv src1 =3D gpr_src(ctx, a->rs1); + TCGv src2 =3D gpr_src(ctx, a->rs2); + TCGv ext2 =3D tcg_temp_new(); =20 - gen_get_gpr(source1, a->rs1); - gen_get_gpr(source2, a->rs2); + tcg_gen_andi_tl(ext2, src2, 31); + (*func)(dest, src1, ext2); + tcg_gen_ext32s_tl(dest, dest); =20 - tcg_gen_andi_tl(source2, source2, 31); - (*func)(source1, source1, source2); - tcg_gen_ext32s_tl(source1, source1); - - gen_set_gpr(a->rd, source1); - tcg_temp_free(source1); - tcg_temp_free(source2); + tcg_temp_free(ext2); return true; } =20 static bool gen_shiftiw(DisasContext *ctx, arg_shift *a, void(*func)(TCGv, TCGv, TCGv)) { - TCGv source1 =3D tcg_temp_new(); - TCGv source2 =3D tcg_temp_new(); + TCGv dest =3D gpr_dst(ctx, a->rd); + TCGv src1 =3D gpr_src(ctx, a->rs1); + TCGv src2 =3D tcg_constant_tl(a->shamt); =20 - gen_get_gpr(source1, a->rs1); - tcg_gen_movi_tl(source2, a->shamt); + (*func)(dest, src1, src2); + tcg_gen_ext32s_tl(dest, dest); =20 - (*func)(source1, source1, source2); - tcg_gen_ext32s_tl(source1, source1); - - gen_set_gpr(a->rd, source1); - tcg_temp_free(source1); - tcg_temp_free(source2); return true; } =20 --=20 2.25.1