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GET /api/patches/2231320/?format=api
{ "id": 2231320, "url": "http://patchwork.ozlabs.org/api/patches/2231320/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/9610e497-5bf7-43de-9e3e-e1dde4e88c42@redhat.com/", "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": "<9610e497-5bf7-43de-9e3e-e1dde4e88c42@redhat.com>", "list_archive_url": null, "date": "2026-04-30T15:41:44", "name": "[pushed,IRA] : Fix soft conflict and hard reg cost calculation", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "2a8df5a5a52e92b43667daade003a4b34fd93232", "submitter": { "id": 4455, "url": "http://patchwork.ozlabs.org/api/people/4455/?format=api", "name": "Vladimir Makarov", "email": "vmakarov@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/9610e497-5bf7-43de-9e3e-e1dde4e88c42@redhat.com/mbox/", "series": [ { "id": 502329, "url": "http://patchwork.ozlabs.org/api/series/502329/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=502329", "date": "2026-04-30T15:41:44", "name": "[pushed,IRA] : Fix soft conflict and hard reg cost calculation", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502329/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2231320/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2231320/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=hfb6n2vQ;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=2620:52:6:3111::32; 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boundary=\"------------nv7Mpgg9tr5pazAEYmI2Ynpj\"", "Content-Language": "en-US", "X-BeenThere": "gcc-patches@gcc.gnu.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Gcc-patches mailing list <gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<https://gcc.gnu.org/mailman/options/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe>", "List-Archive": "<https://gcc.gnu.org/pipermail/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-request@gcc.gnu.org?subject=help>", "List-Subscribe": "<https://gcc.gnu.org/mailman/listinfo/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe>", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "The reason for the patch is in its commit message.\n\nThe patch was successfully bootstrapped and tested on \nx86-64,aarch64,ppc64le.", "diff": "commit 0799fc00e222fcaf1d527d014b97dc5d585f4d49\nAuthor: Vladimir N. Makarov <vmakarov@redhat.com>\nDate: Thu Apr 30 09:01:54 2026 -0400\n\n [IRA]: Fix soft conflict and hard reg cost calculation\n \n When finding soft conflict in IRA, we wrongly use conflict allocno mode.\n This can result in more shuffling on the region borders and worse code\n generation. The patch fixes this.\n \n gcc/ChangeLog:\n \n * ira-color.cc (assign_hard_reg): Use the right allocno mode to\n call note_conflict.\n\ndiff --git a/gcc/ira-color.cc b/gcc/ira-color.cc\nindex 279b36ef7d4..953dbd94ad8 100644\n--- a/gcc/ira-color.cc\n+++ b/gcc/ira-color.cc\n@@ -2107,8 +2107,9 @@ assign_hard_reg (ira_allocno_t a, bool retry_p)\n \t\t\t\t full_costs[hri] += cost;\n \t\t\t\t}\n \t\t\t };\n+\t\t\t enum machine_mode a_mode = ALLOCNO_MODE (a);\n \t\t\t for (int r = hard_regno;\n-\t\t\t r >= 0 && (int) end_hard_regno (mode, r) > hard_regno;\n+\t\t\t r >= 0 && (int) end_hard_regno (a_mode, r) > hard_regno;\n \t\t\t r--)\n \t\t\t note_conflict (r);\n \t\t\t for (int r = hard_regno + 1;\n", "prefixes": [ "pushed", "IRA" ] }