From patchwork Sat Sep 18 19:16:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Li, Pan2 via Gcc-patches" X-Patchwork-Id: 45157 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 77B933858417 for ; Sat, 18 Sep 2021 19:16:43 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 77B933858417 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1631992603; bh=nLmIhFVFW4MsRHH0HSCEM0P+3W/34E60c1TCis/Kxvw=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:Cc:From; b=Nw1KGg6wVFSsF0G4kPWL+5oDlmhqQPB2v/Utd+Davz/3CJ0RQb0EaHgdELkUxJ6iA 7KNZfc/K8QsN9c+WoMfvlB108rk9meKuu2cOi9S8GyI9TojY+xBBpFwlkxlJfyiKNO 1YNMKvZHdytEOWWEYmzQNM3uaWINx8OHRctXJCoI= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by sourceware.org (Postfix) with ESMTPS id 0E0DF3858417 for ; Sat, 18 Sep 2021 19:16:13 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 0E0DF3858417 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 18IHS6GQ011400 for ; Sat, 18 Sep 2021 12:16:12 -0700 Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com with ESMTP id 3b5dfp102c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Sat, 18 Sep 2021 12:16:12 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Sat, 18 Sep 2021 12:16:11 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.18 via Frontend Transport; Sat, 18 Sep 2021 12:16:11 -0700 Received: from linux.wrightpinski.org.com (unknown [10.69.242.197]) by maili.marvell.com (Postfix) with ESMTP id 306653F7043; Sat, 18 Sep 2021 12:16:11 -0700 (PDT) To: Subject: [PATCH] Fix middle-end/102395: reg_class having only NO_REGS and ALL_REGS. Date: Sat, 18 Sep 2021 12:16:06 -0700 Message-ID: <1631992566-20048-1-git-send-email-apinski@marvell.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: fWkRFpWWqPVjTx1qINbqc5w6Ej6OvsIa X-Proofpoint-GUID: fWkRFpWWqPVjTx1qINbqc5w6Ej6OvsIa X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-09-18_07,2021-09-17_02,2020-04-07_01 X-Spam-Status: No, score=-14.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: apinski--- via Gcc-patches From: "Li, Pan2 via Gcc-patches" Reply-To: apinski@marvell.com Cc: Andrew Pinski Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" From: Andrew Pinski So this is a simple fix is to just add to the assert that sclass and dclass are both greater than or equal to NO_REGS. NO_REGS is documented as the first register class so it should have the value of 0. gcc/ChangeLog: * lra-constraints.c (check_and_process_move): Assert that dclass and sclass are greater than or equal to NO_REGS. --- gcc/lra-constraints.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index a56080bee35..4d734548c38 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -1276,7 +1276,7 @@ check_and_process_move (bool *change_p, bool *sec_mem_p ATTRIBUTE_UNUSED) sclass = dclass = NO_REGS; if (REG_P (dreg)) dclass = get_reg_class (REGNO (dreg)); - gcc_assert (dclass < LIM_REG_CLASSES); + gcc_assert (dclass < LIM_REG_CLASSES && dclass >= NO_REGS); if (dclass == ALL_REGS) /* ALL_REGS is used for new pseudos created by transformations like reload of SUBREG_REG (see function @@ -1288,7 +1288,7 @@ check_and_process_move (bool *change_p, bool *sec_mem_p ATTRIBUTE_UNUSED) return false; if (REG_P (sreg)) sclass = get_reg_class (REGNO (sreg)); - gcc_assert (sclass < LIM_REG_CLASSES); + gcc_assert (sclass < LIM_REG_CLASSES && sclass >= NO_REGS); if (sclass == ALL_REGS) /* See comments above. */ return false;