From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) by sourceware.org (Postfix) with ESMTPS id EB3BC3857C58 for ; Tue, 25 Oct 2022 10:01:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org EB3BC3857C58 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=foss.st.com Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 29P8xVAE030351; Tue, 25 Oct 2022 12:01:29 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : mime-version : content-type : content-transfer-encoding; s=selector1; bh=1qDi9d6G9p+9MvZu1ZoCPI4l3t6zEW7TT/JIqljlFQk=; b=XRhhrn/TBlnoFbj9gR7JcsyNvTdOlrGoXX5RmF/mcuEKSiDFHETINCuIYu3x+pz3IVQN qKk8fq/Ye7UTLhycyuONtPOadF8NpHm9Mp1bIO+dAoovpHwL09PjprnXldUxdxJOY1sh XqtB2+WxN87Mdlh03jQ4wYF9Vax/n9xsQKto9zvH7HCnJYfHINANuAQCaQLmd6NrHLZx M/jVFz75zVpNmrygDv4VlHVjlY7B/APPUaHYBJQ7Gd3Fch49e7olDpa2srrhvOXmePVP j8Nj2gY+sDFz18OQf/hJOZErqi+wNkDoVjELoADTPkdO1aZ1wOt9E3Sb3G6SmVlX+QDm jg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3kc7v2h3v9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 25 Oct 2022 12:01:29 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id D969510003B; Tue, 25 Oct 2022 12:01:23 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node3.st.com [10.75.129.71]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 0CC91217B73; Tue, 25 Oct 2022 12:01:23 +0200 (CEST) Received: from jkgcxl0002.jkg.st.com (10.210.54.218) by SHFDAG1NODE3.st.com (10.75.129.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 25 Oct 2022 12:01:22 +0200 From: =?UTF-8?q?Torbj=C3=B6rn=20SVENSSON?= To: CC: , , =?UTF-8?q?Torbj=C3=B6rn=20SVENSSON?= Subject: [PATCH] IRA: Make sure array is big enough Date: Tue, 25 Oct 2022 12:01:04 +0200 Message-ID: <20221025100103.1736564-1-torbjorn.svensson@foss.st.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.210.54.218] X-ClientProxiedBy: EQNCAS1NODE3.st.com (10.75.129.80) To SHFDAG1NODE3.st.com (10.75.129.71) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-10-25_04,2022-10-25_01,2022-06-22_01 X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,GIT_PATCH_0,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: In commit 081c96621da, the call to resize_reg_info() was moved before the call to remove_scratches() and the latter one can increase the number of regs and that would cause an out of bounds usage on the reg_renumber global array. Without this patch, the following testcase randomly fails with: during RTL pass: ira In file included from /src/gcc/testsuite/gcc.dg/compat//struct-by-value-5b_y.c:13: /src/gcc/testsuite/gcc.dg/compat//struct-by-value-5b_y.c: In function 'checkgSf13': /src/gcc/testsuite/gcc.dg/compat//fp-struct-test-by-value-y.h:28:1: internal compiler error: Segmentation fault /src/gcc/testsuite/gcc.dg/compat//struct-by-value-5b_y.c:22:1: note: in expansion of macro 'TEST' gcc/ChangeLog: * ira.c: Resize array after reg number increased. Co-Authored-By: Yvan ROUX Signed-off-by: Torbjörn SVENSSON --- gcc/ira.cc | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/ira.cc b/gcc/ira.cc index 42c9cead9f8..d28a67b2546 100644 --- a/gcc/ira.cc +++ b/gcc/ira.cc @@ -5718,6 +5718,7 @@ ira (FILE *f) regstat_free_ri (); regstat_init_n_sets_and_refs (); regstat_compute_ri (); + resize_reg_info (); }; int max_regno_before_rm = max_reg_num (); -- 2.25.1