{"id":2229790,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2229790/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/7b7e87ea-f78e-4162-a6e1-6b4c50d0488b@redhat.com/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/1.1/projects/17/?format=json","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},"msgid":"<7b7e87ea-f78e-4162-a6e1-6b4c50d0488b@redhat.com>","date":"2026-04-28T18:11:05","name":"[pushed,LRA] : Fix elimination recognition for INC/DEC RTL","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"840687e1f098855b585e68dbfdeecb4385b58f37","submitter":{"id":4455,"url":"http://patchwork.ozlabs.org/api/1.1/people/4455/?format=json","name":"Vladimir Makarov","email":"vmakarov@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/7b7e87ea-f78e-4162-a6e1-6b4c50d0488b@redhat.com/mbox/","series":[{"id":501920,"url":"http://patchwork.ozlabs.org/api/1.1/series/501920/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501920","date":"2026-04-28T18:11:05","name":"[pushed,LRA] : Fix elimination recognition for INC/DEC RTL","version":1,"mbox":"http://patchwork.ozlabs.org/series/501920/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2229790/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2229790/checks/","tags":{},"headers":{"Return-Path":"","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=Eex/GAte;\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; helo=vm01.sourceware.org;\n envelope-from=gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org;\n receiver=patchwork.ozlabs.org)","sourceware.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=Eex/GAte","sourceware.org; dmarc=pass (p=quarantine dis=none)\n header.from=redhat.com","sourceware.org; spf=pass smtp.mailfrom=redhat.com","server2.sourceware.org;\n arc=none smtp.remote-ip=170.10.129.124"],"Received":["from vm01.sourceware.org (vm01.sourceware.org\n [IPv6:2620:52:6:3111::32])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g4pRr2r1mz1yHv\n\tfor ; Wed, 29 Apr 2026 04:11:48 +1000 (AEST)","from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id 8B1F04BBC0A5\n\tfor ; Tue, 28 Apr 2026 18:11:46 +0000 (GMT)","from us-smtp-delivery-124.mimecast.com\n (us-smtp-delivery-124.mimecast.com [170.10.129.124])\n by sourceware.org (Postfix) with ESMTP id 55A044BB8F69\n for ; Tue, 28 Apr 2026 18:11:10 +0000 (GMT)","from mail-qt1-f198.google.com (mail-qt1-f198.google.com\n [209.85.160.198]) by relay.mimecast.com with ESMTP with STARTTLS\n (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id\n us-mta-215-EvJAF10XMwKUheeFAI9BqA-1; Tue, 28 Apr 2026 14:11:08 -0400","by mail-qt1-f198.google.com with SMTP id\n d75a77b69052e-50fae95c82cso230720101cf.2\n for ; Tue, 28 Apr 2026 11:11:08 -0700 (PDT)","from [192.168.0.111] (192-0-141-76.cpe.teksavvy.com. 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Makarov \nDate: Tue Apr 28 09:02:13 2026 -0400\n\n [LRA]: Fix elimination recognition for INC/DEC RTL\n \n There is a typo when we processing {PRE,POST}_{INC,DEC} and\n {PRE,POST}_MODIFY to prevent elimination of hard reg operand. The\n condition actually makes to consider pseudos instead of hard reg. The\n patch fixes this.\n \n gcc/ChangeLog:\n \n * lra-eliminations.cc (mark_not_eliminable): Fix condition to\n consider hard regs instead of pseudos for INC/DEC/MODIFY operands.\n\ndiff --git a/gcc/lra-eliminations.cc b/gcc/lra-eliminations.cc\nindex e2a6ebfff16..84954d5bd1c 100644\n--- a/gcc/lra-eliminations.cc\n+++ b/gcc/lra-eliminations.cc\n@@ -801,7 +801,7 @@ mark_not_eliminable (rtx x, machine_mode mem_mode)\n \t curr_sp_change += offset;\n \t}\n else if (REG_P (XEXP (x, 0))\n-\t && REGNO (XEXP (x, 0)) >= FIRST_PSEUDO_REGISTER)\n+\t && REGNO (XEXP (x, 0)) < FIRST_PSEUDO_REGISTER)\n \t{\n \t /* If we modify the source of an elimination rule, disable\n \t it. Do the same if it is the destination and not the\n","prefixes":["pushed","LRA"]}