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GET /api/patches/808985/?format=api
{ "id": 808985, "url": "http://patchwork.ozlabs.org/api/patches/808985/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/20170901203310.GS2323@tucnak/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20170901203310.GS2323@tucnak>", "list_archive_url": null, "date": "2017-09-01T20:33:10", "name": "Fix a pasto in lra-remat.c (reg_overlap_for_remat_p)", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b05b123b30ef091faeac4554feea7c8e1d092ff0", "submitter": { "id": 671, "url": "http://patchwork.ozlabs.org/api/people/671/?format=api", "name": "Jakub Jelinek", "email": "jakub@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/20170901203310.GS2323@tucnak/mbox/", "series": [ { "id": 1106, "url": "http://patchwork.ozlabs.org/api/series/1106/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=1106", "date": "2017-09-01T20:33:10", "name": "Fix a pasto in lra-remat.c (reg_overlap_for_remat_p)", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/1106/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/808985/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/808985/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-return-461331-incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "mailing list gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; 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run by ezmlm", "Precedence": "bulk", "List-Id": "<gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<mailto:gcc-patches-unsubscribe-incoming=patchwork.ozlabs.org@gcc.gnu.org>", "List-Archive": "<http://gcc.gnu.org/ml/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-help@gcc.gnu.org>", "Sender": "gcc-patches-owner@gcc.gnu.org", "X-Virus-Found": "No", "X-Spam-SWARE-Status": "No, score=-11.9 required=5.0 tests=BAYES_00, GIT_PATCH_2,\n\tGIT_PATCH_3, RP_MATCHES_RCVD,\n\tSPF_HELO_PASS autolearn=ham version=3.3.2 spammy=privately,\n\tHx-languages-length:1144, HTo:U*vmakarov", "X-HELO": "mx1.redhat.com", "DMARC-Filter": "OpenDMARC Filter v1.3.2 mx1.redhat.com 3329568CE", "Date": "Fri, 1 Sep 2017 22:33:10 +0200", "From": "Jakub Jelinek <jakub@redhat.com>", "To": "Vladimir Makarov <vmakarov@redhat.com>, Jeff Law <law@redhat.com>,\n\tBernd Schmidt <bernds_cb1@t-online.de>", "Cc": "gcc-patches@gcc.gnu.org", "Subject": "[PATCH] Fix a pasto in lra-remat.c (reg_overlap_for_remat_p)", "Message-ID": "<20170901203310.GS2323@tucnak>", "Reply-To": "Jakub Jelinek <jakub@redhat.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=us-ascii", "Content-Disposition": "inline", "User-Agent": "Mutt/1.7.1 (2016-10-04)", "X-IsSubscribed": "yes" }, "content": "Hi!\n\nThis is something that has been reported privately to me.\nThis is in code introduced in\nhttps://gcc.gnu.org/ml/gcc-patches/2016-03/msg00660.html\nand looks indeed like a pasto to me, before the loop there is\na very similar set of stmts without the 2 suffix, and unless\nregno being a hard reg (after possible reg_renumber) implies\nthat regno2 (after possible reg_renumber) is a hard reg, if\nunlucky we might access out of bounds.\n\nI don't have a testcase for this, but have bootstrapped/regtested\nit on x86_64-linux and i686-linux, ok for trunk?\n\n2017-09-01 Jakub Jelinek <jakub@redhat.com>\n\n\t* lra-remat.c (reg_overlap_for_remat_p): Fix a pasto.\n\n\n\tJakub", "diff": "--- gcc/lra-remat.c.jj\t2017-05-25 10:37:00.000000000 +0200\n+++ gcc/lra-remat.c\t2017-09-01 19:42:07.615291583 +0200\n@@ -684,7 +684,7 @@ reg_overlap_for_remat_p (lra_insn_reg *r\n \n \tif (regno2 >= FIRST_PSEUDO_REGISTER && reg_renumber[regno2] >= 0)\n \t regno2 = reg_renumber[regno2];\n-\tif (regno >= FIRST_PSEUDO_REGISTER)\n+\tif (regno2 >= FIRST_PSEUDO_REGISTER)\n \t nregs2 = 1;\n \telse\n \t nregs2 = hard_regno_nregs[regno2][reg->biggest_mode];\n", "prefixes": [] }