From nobody Sat Nov 23 21:20:44 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1729654597; cv=none; d=zohomail.com; s=zohoarc; b=fAi9g3hVRATJ592yQoxb0WI9cOlhr8W9OpAl3F56cdri7nW40SgrX6oovAjcpwpcSl4WFom31ky4k/IRaMXVLDXje4YpMP2vk1mcjkp3IRTeqVuqEKb8TsfOw0VF+/ZBDFC6HZIBP+ucAUUYcNHJRqx1NOrLJOk+gnB5AscpSYw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1729654597; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=wgfe8eEx0DyNMgpV+RxevSprfVFpnEpDRbWriLdWhhM=; b=HlVxCE0ZVPL5VFRfqcbgBhAhHF7Ix5/VUfE9SvTBFDovTawFBTVqsQ5dYqK3KJ6eOvJ/02jM1aMD5pSEV7MOeaahNMtAXHvF81iZN9TC6DhFOZOIDL7Y9w5UfCRdP6+0a1zFJ8sT3wqw8jKaYrHV4l3DGeR9vVCgvrnriKbSArs= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1729654597549764.9441328466344; Tue, 22 Oct 2024 20:36:37 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t3S9S-0007Om-Bf; Tue, 22 Oct 2024 23:35:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t3S98-00070i-Bp for qemu-devel@nongnu.org; Tue, 22 Oct 2024 23:34:56 -0400 Received: from mail-pf1-x429.google.com ([2607:f8b0:4864:20::429]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1t3S92-0008MU-Sc for qemu-devel@nongnu.org; Tue, 22 Oct 2024 23:34:54 -0400 Received: by mail-pf1-x429.google.com with SMTP id d2e1a72fcca58-71eb1d0e3c2so2914628b3a.2 for ; Tue, 22 Oct 2024 20:34:46 -0700 (PDT) Received: from stoup.. (174-21-81-121.tukw.qwest.net. [174.21.81.121]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71ec13d73b1sm5438338b3a.105.2024.10.22.20.34.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Oct 2024 20:34:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1729654486; x=1730259286; 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=wgfe8eEx0DyNMgpV+RxevSprfVFpnEpDRbWriLdWhhM=; b=zVk9yVz4v6sPUgy8iI5zYfP5fBmYo8DBG/vwo1xLEclmPocPLSpy4QLxUOiR1qcqzM bEyd85Ujc+YuQe8fqyhHhdiwBNxL1HRNMBCURUXWe7uHpULEXp/pgJWJJHTDlxMczNg1 9yk/1bpfqOnHQ+i9/pxPxS5lWyL3dRaTNO3LQ6AdjM2jSngAyC0DvPrszHLxTmYq1eqr d9tYfItZVtdXZCIHPb1q8DjTV7yzlcSRix9lcBZ0bFPSpAf4Pbo7LuRD7Ozih2gDDRrI pKhT5U2//d9JsfHPxsy7lrotsYArEVFC8SR5qRsNltplblzsbnp0yPYEnegOBG1gwUIR /AQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729654486; x=1730259286; 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=wgfe8eEx0DyNMgpV+RxevSprfVFpnEpDRbWriLdWhhM=; b=jsLfgO27RXF8HsEFZdpqBqyeVx6inbNJyp4jYrvP3xXvSafYHP2I8qhxfDZGiRmxi/ Kj21OLKRJyMjM0/1oAnLnllF75vSb7RbSNaFSaM4w6c+vX2FDJ3D+L0dJYF8dexeYLBi Kmf6lBLnRjmmg+7eVGbJ85JzT7iEOipERWsM+3SVN/uVnlh+QeibEI3VQDx+leOVAcur OYkQVSNw1fCvAsXj/YkFatuXyhlDjeP02NFWemb6Cj0uBIScJdqFP3HZIBtxRwsv5vIt pq1qVh56ok5ipphJKWeUJVwNa6IOJr9yzu/TXfFTMib2YWVg8H/XQ/otdAzEk0B71AOQ LCmw== X-Gm-Message-State: AOJu0Yw3JBhWVr8Gp4hIspfQ1GF3RN/uYbGFqlr5hQKrGAZd2os8RltP +TJXYlaE+FoXbyZ7WLf6vBG9msKNZ2IOrmYRu9VOJ9sqwQGQTZ3izHfm1Q/E0uQuO+Qffj6Y3q7 N X-Google-Smtp-Source: AGHT+IG/lmlLGaI+y5DPzANv/9T2nVNOSsuWnTGuVilfd06AtVYZcfKuBc9tOW/rQYd5iecRLhT8EQ== X-Received: by 2002:a05:6a00:4fd3:b0:71e:3b51:e856 with SMTP id d2e1a72fcca58-72030b715d2mr2036263b3a.1.1729654485614; Tue, 22 Oct 2024 20:34:45 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, Dani Szebenyi , Ilya Leoshkevich Subject: [PULL 15/24] tcg/ppc: Fix tcg_out_rlw_rc Date: Tue, 22 Oct 2024 20:34:23 -0700 Message-ID: <20241023033432.1353830-16-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241023033432.1353830-1-richard.henderson@linaro.org> References: <20241023033432.1353830-1-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::429; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x429.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: 2.1.29 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: 1729654598523116600 Content-Type: text/plain; charset="utf-8" From: Dani Szebenyi The TCG IR sequence: mov_i32 tmp97,$0xc4240000 dead: 1 pref=3D0xffffffff mov_i32 tmp98,$0x0 pref=3D0xffffffff rotr_i32 tmp97,tmp97,tmp98 dead: 1 2 pref=3D0xffffffff was translated to `slwi r15, r14, 0` instead of `slwi r14, r14, 0` due to SH field overflow. SH field is 5 bits, and tcg_out_rlw is called in some situations with `32-n`, when `n` is 0 it results in an overflow to RA field. This commit prevents overflow of that field and adds debug assertions for the other fields Acked-by: Ilya Leoshkevich Signed-off-by: Dani Szebenyi Message-ID: <20241022133535.69351-2-szedani@linux.ibm.com> Reviewed-by: Richard Henderson Signed-off-by: Richard Henderson --- tcg/ppc/tcg-target.c.inc | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index 223f079524..9a11c26fd3 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -911,7 +911,9 @@ static void tcg_out_rld(TCGContext *s, int op, TCGReg r= a, TCGReg rs, static void tcg_out_rlw_rc(TCGContext *s, int op, TCGReg ra, TCGReg rs, int sh, int mb, int me, bool rc) { - tcg_out32(s, op | RA(ra) | RS(rs) | SH(sh) | MB(mb) | ME(me) | rc); + tcg_debug_assert((mb & 0x1f) =3D=3D mb); + tcg_debug_assert((me & 0x1f) =3D=3D me); + tcg_out32(s, op | RA(ra) | RS(rs) | SH(sh & 0x1f) | MB(mb) | ME(me) | = rc); } =20 static void tcg_out_rlw(TCGContext *s, int op, TCGReg ra, TCGReg rs, --=20 2.43.0