[{"id":3673122,"web_url":"http://patchwork.ozlabs.org/comment/3673122/","msgid":"<3820a31c-d8e0-4f7c-83e9-be08f818c5b7@oss.qualcomm.com>","list_archive_url":null,"date":"2026-04-03T13:13:46","subject":"Re: [PATCH] RISC-V: Omit ghost from the pipeline-checker output","submitter":{"id":92310,"url":"http://patchwork.ozlabs.org/api/people/92310/","name":"Jeffrey Law","email":"jeffrey.law@oss.qualcomm.com"},"content":"On 4/3/2026 5:17 AM, Michiel Derhaeg wrote:\n> I noticed some pipelines erroneously provide reservations for ghost.\n> Likely because the pipeline-checker will report it as missing.\n>\n> This patch filters out all default reservations (only ghost now) from\n> riscv.md.\n>\n> gcc/ChangeLog:\n>\n> * config/riscv/pipeline-checker: Filter tuneless insn types.\nNo.  Every insn type must map to a reservation.  Even ghosts.\n\nJeff","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 (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=RISG4/Q/;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=UYkRai1v;\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 (2048-bit key,\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=RISG4/Q/;\n\tdkim=pass (2048-bit key,\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=UYkRai1v","sourceware.org; dmarc=none (p=none dis=none)\n header.from=oss.qualcomm.com","sourceware.org;\n spf=pass smtp.mailfrom=oss.qualcomm.com","server2.sourceware.org;\n arc=none smtp.remote-ip=205.220.180.131"],"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 4fnK1p5xTbz1xtJ\n\tfor ; Sat, 04 Apr 2026 00:14:21 +1100 (AEDT)","from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id 58F164BA23C3\n\tfor ; Fri, 3 Apr 2026 13:14:18 +0000 (GMT)","from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com\n [205.220.180.131])\n by sourceware.org (Postfix) with ESMTPS id 200384BA2E3D\n for ; Fri, 3 Apr 2026 13:13:50 +0000 (GMT)","from pps.filterd (m0279871.ppops.net [127.0.0.1])\n by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 63373pRr3449809\n for ; Fri, 3 Apr 2026 13:13:49 GMT","from mail-dy1-f200.google.com (mail-dy1-f200.google.com\n [74.125.82.200])\n by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4da8u590cj-1\n (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT)\n for ; Fri, 03 Apr 2026 13:13:49 +0000 (GMT)","by mail-dy1-f200.google.com with SMTP id\n 5a478bee46e88-2c7130f88e3so5904160eec.0\n for ; Fri, 03 Apr 2026 06:13:49 -0700 (PDT)","from [172.31.0.38] ([136.38.201.137])\n by smtp.gmail.com with ESMTPSA id\n 5a478bee46e88-2ca7c20c0c2sm5547139eec.17.2026.04.03.06.13.46\n (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128);\n Fri, 03 Apr 2026 06:13:47 -0700 (PDT)"],"DKIM-Filter":["OpenDKIM Filter v2.11.0 sourceware.org 58F164BA23C3","OpenDKIM Filter v2.11.0 sourceware.org 200384BA2E3D"],"DMARC-Filter":"OpenDMARC Filter v1.4.2 sourceware.org 200384BA2E3D","ARC-Filter":"OpenARC Filter v1.0.0 sourceware.org 200384BA2E3D","ARC-Seal":"i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1775222030; cv=none;\n b=Vz6zuo5yHDd2CisQhGol+0wkxnifuF48ZrP8R37/v01BIgXRU5sVKz9K9VEYBvNlZIB0DECOAQYkYvMntyu1Q2obUmLRmva7MVDuCFqnZzFhI1rZ35r6uhdmMx49CuKO+xeDBAUzLfljC18api00o3JS8TCN3azv8U4gY/9Fh/o=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1775222030; c=relaxed/simple;\n bh=cGAZdEkQj8fuMuJTO1XKXVu/oTfcpZ1LTW4LM82PDA4=;\n h=DKIM-Signature:DKIM-Signature:Message-ID:Date:MIME-Version:\n Subject:To:From;\n b=Mmauz1Kj+xnt7SZKKiX0MG1gu5Dq3uS9OkFiMGvPFY++V18L66btHKplCGf/hNpR0cnr2LkIlmFW59nJxz83KPn6ZwZm6gpvRLe7bGgKoP4jA5mpbJdy9tpEaEHa0hWIwxbMKrjvprlwLOO7sgNrFzBtFE6PTNHNboAbCsRvycY=","ARC-Authentication-Results":"i=1; server2.sourceware.org","DKIM-Signature":["v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h=\n cc:content-transfer-encoding:content-type:date:from:in-reply-to\n :message-id:mime-version:references:subject:to; s=qcppdkim1; bh=\n Ihkm5wMYo5IHR5ka0TDrS4Z8FLLad2Lh6LOxT3wkloc=; b=RISG4/Q/Pahi3br6\n 5uNBivfKsicGZyag9Hx/uTdj2PbzsQgr0j9At6w3WVv+3maACnc86z9pQSYu7+PQ\n PkHkZTGag8GVjCw+/eo/ebSRwY5oTrUbdQOxG+uUcPVh7MYqTRhtAoRC9w5xmlAe\n 15yzMP5OuO0uVOR1t+lGY9/r0RmU9IpUM2XSVqU7kMBcCfM4mz8rr21lE1YQ1mjk\n SXNVHFDMNOhy0jcxODmS117WwrypYVLBxWdUy+8ji9WHdF7xhlOItjFZFnsEYotQ\n bOI//QsiYLI/KP1EOzQ3/IIYtB/J5rhUTWSTsJsdgl8yB5vjBUXfnh1U9or8sbGA\n 7whxvw==","v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=oss.qualcomm.com; s=google; t=1775222028; x=1775826828; darn=gcc.gnu.org;\n h=content-transfer-encoding:in-reply-to:from:content-language\n :references:cc:to:subject:user-agent:mime-version:date:message-id\n :from:to:cc:subject:date:message-id:reply-to;\n bh=Ihkm5wMYo5IHR5ka0TDrS4Z8FLLad2Lh6LOxT3wkloc=;\n b=UYkRai1vnmL1jsGfeu40uVFN3mNWlA7IC8Py9EGLTjTe8BwDP3AoPLEvhMkfp3uvpA\n 75y+UwN2I4ZfFU5Wm37r5FSTOauu06vrfonSiTgLApnUpWaybFQJKu3YhiCpCHMcSEpO\n YyAOvA1uQBHrCbSZdVer+20B4Hg8EhXb07KLopSJVuBeCeIAcCxfBdWrwCQmKXJU2S9x\n 9ri6LweBn4p/ZaQvVLv2RLT6BaInC/QjuLLlfqZtH13ZZR7xeF4uHAfTEqxqOi+9Z4af\n ck4AXG4oi2g2ow2wufJFGpHaZAtBjd3xHae//BdJ7WZCUV/2orF8yOBLYNGG5k7b7sfY\n 1l8Q=="],"X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1775222028; x=1775826828;\n h=content-transfer-encoding:in-reply-to:from:content-language\n :references:cc:to:subject:user-agent:mime-version:date:message-id\n :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id\n :reply-to;\n bh=Ihkm5wMYo5IHR5ka0TDrS4Z8FLLad2Lh6LOxT3wkloc=;\n b=O3X/S9EPsNmO9kRxE+teSmZEcKxDKvpvA82CBYzrSDjVObt8dyK9atG/P08JzRwCRO\n Qpm2Qvt+FXDUxrgeiigeR8vx3BTd356qBqq/lAe88DXh+feIBiNCKKCLQUJ8DtCzSRK0\n 0/z7KeNCxPQnP4avh9/PBdlFuZVy7UjvcmKLNFjPovIIvWp+TanHBmEVifawUFQ2nNXZ\n tnMjZnP33ZvVSicOl+11var6XzOPynRGUuGgfssTo5tAvgsc69CT45scnMaOVGha5+Yg\n dA3FhrT+1qtGieSOZ3H3/cYs8zAPdkq66H1R23dhbjhsvTuQHHf7JChdIMINViFdgrKl\n y9qg==","X-Gm-Message-State":"AOJu0YwXX6oiMfr3L99F9z4R6BgBXatyMY6YCj3UWeUcYh1ZWuFgfeMU\n zJGeoZ5pj1kEAygLy/45+G/Y6a+YVnGXoAG/MXLe+7+5ef0zs3EfyLHl94pmMbxm5wjD6N5Roff\n 7oqCCZ+E2R4LgjRhLwO2q25Nw7a25Mf/egdzmOqBMm+41YRJAPSIp/iK3I72t","X-Gm-Gg":"AeBDiev5PXtEdE03p80wLpNmcFbRrW2B4/Kz6F70RkjckOgN3d99n6PXT3I17iaSGnu\n WF7KCRd+hhrtzfhyfvwUoMimsi+1NTBpYQWJvToCJOl6oVMverKqWZmxVImU7jiUbdRxGNCwYAt\n lonamI4cuhzT5PTLxzMH7DQkzFmhrCNREJB3d5WTYtYUNsqtvESpOhKI4AN2LT+hn9ZVBDA2Z7P\n HQu2fgXYJLakOXeSUXDOMYCb748eJGkwGMpjM+ECXJUrpKNnxOVXcwOHwPvlx34MIXm0InCryMB\n jTWna9MU2KagNUA4LcgyIi41P6IjUr5jhDS+zhhQgWBAK5whf/TjSAftbJZP3wUqAgB/H8dzU4d\n cWJ7Q2XMrjMsDNJa/+NgL6DEslfGpTay+BPlmUg5v7OCmACpA/Q==","X-Received":["by 2002:a05:7300:dc8e:b0:2cb:8d2f:e247 with SMTP id\n 5a478bee46e88-2cbfa4c488bmr1644327eec.13.1775222028193;\n Fri, 03 Apr 2026 06:13:48 -0700 (PDT)","by 2002:a05:7300:dc8e:b0:2cb:8d2f:e247 with SMTP id\n 5a478bee46e88-2cbfa4c488bmr1644310eec.13.1775222027650;\n Fri, 03 Apr 2026 06:13:47 -0700 (PDT)"],"Message-ID":"<3820a31c-d8e0-4f7c-83e9-be08f818c5b7@oss.qualcomm.com>","Date":"Fri, 3 Apr 2026 07:13:46 -0600","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Subject":"Re: [PATCH] RISC-V: Omit ghost from the pipeline-checker output","To":"Michiel Derhaeg , kito.cheng@sifive.com","Cc":"gcc-patches@gcc.gnu.org","References":"<20260403111758.3755791-1-michiel@synopsys.com>","Content-Language":"en-US","From":"Jeffrey Law ","In-Reply-To":"<20260403111758.3755791-1-michiel@synopsys.com>","Content-Type":"text/plain; charset=UTF-8; format=flowed","Content-Transfer-Encoding":"8bit","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDAzMDExNyBTYWx0ZWRfX2A8pftdpEnrC\n kkTW2GOEkBbjMF/caYCMKkYVlW8++uhAISp/f8+wjZy6Z/HVll3H75JyLkNcwttnuCLW2iHuBds\n rJbXnU0CcegYv81b1qhg7c9OMBdALbAnE7bpIydL2MJsrM/BQqmTx/5sUPAREx0+CvtwTtRdI2N\n oOVETBUjUqBP5NHTb7VeBgG/kfRp7yzkn6Frm8EhSgoun9CsloCyR1PWYMGDbsnlO8SOgCAEtDP\n gJwdxQWTk8t6A0rjHZUp2yf3vOSHr0jzNc0WC4OVEvA6W68x48W9uSibAP8ii2+OHWyZGYs81zc\n tTnjUwCkXfIgQ0WR8AVjB1XxFmC2dlk9NPHYz+AdF2uRDEHkrn4ICG+USRt+9+OxSFwWeRM5Q3T\n WqglySOzs+5pky2UEQVBX3HPgeMSNbrwCLj30A8gdqUjSKDdmytxHQwt2jPPnO6Kb7O7NAl4r78\n AnuIxEwf0qn60KvW41A==","X-Authority-Analysis":"v=2.4 cv=W5g1lBWk c=1 sm=1 tr=0 ts=69cfbd0d cx=c_pps\n a=PfFC4Oe2JQzmKTvty2cRDw==:117 a=asGLMfRmzhnGNxaIYohjRg==:17\n a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22\n a=Ztuc-u9u8hRjqGI8NTAA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10\n a=6Ab_bkdmUrQuMsNx7PHu:22","X-Proofpoint-ORIG-GUID":"aAEI7SDuu3VBINTsUJZzYtpu4_m7kOrL","X-Proofpoint-GUID":"aAEI7SDuu3VBINTsUJZzYtpu4_m7kOrL","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-03_04,2026-04-03_01,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n bulkscore=0 suspectscore=0 clxscore=1015 phishscore=0 impostorscore=0\n malwarescore=0 lowpriorityscore=0 adultscore=0 spamscore=0 priorityscore=1501\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604030117","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}},{"id":3673134,"web_url":"http://patchwork.ozlabs.org/comment/3673134/","msgid":"","list_archive_url":null,"date":"2026-04-03T13:22:46","subject":"Re: [PATCH] RISC-V: Omit ghost from the pipeline-checker output","submitter":{"id":93030,"url":"http://patchwork.ozlabs.org/api/people/93030/","name":"Michiel Derhaeg","email":"Michiel.Derhaeg@synopsys.com"},"content":"Even though it is already defined in riscv.md?\n\n    ;; Ghost instructions produce no real code and introduce no hazards.\n    ;; They exist purely to express an effect on dataflow.\n    (define_insn_reservation \"ghost\" 0\n      (eq_attr \"type\" \"ghost\")\n      \"nothing\")\n\nMichiel","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 (2048-bit key;\n unprotected) header.d=synopsys.com header.i=@synopsys.com header.a=rsa-sha256\n header.s=pfptdkimsnps header.b=P6D/2mFo;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=synopsys.com header.i=@synopsys.com header.a=rsa-sha256\n header.s=mail header.b=Hy9znJHD;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n unprotected) header.d=synopsys.com header.i=@synopsys.com header.a=rsa-sha256\n header.s=selector1 header.b=raTtiz0y;\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 (2048-bit key,\n unprotected) header.d=synopsys.com header.i=@synopsys.com header.a=rsa-sha256\n header.s=pfptdkimsnps header.b=P6D/2mFo;\n\tdkim=pass (2048-bit key,\n unprotected) header.d=synopsys.com header.i=@synopsys.com header.a=rsa-sha256\n header.s=mail header.b=Hy9znJHD;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key,\n unprotected) header.d=synopsys.com header.i=@synopsys.com header.a=rsa-sha256\n header.s=selector1 header.b=raTtiz0y","sourceware.org; dmarc=pass (p=quarantine dis=none)\n header.from=synopsys.com","sourceware.org; spf=pass smtp.mailfrom=synopsys.com","server2.sourceware.org;\n arc=fail smtp.remote-ip=148.163.156.19","o365relay-in.synopsys.com;\n dmarc=pass (p=reject dis=none) header.from=synopsys.com","o365relay-in.synopsys.com;\n spf=pass smtp.mailfrom=synopsys.com","o365relay-in.synopsys.com; dkim=pass (1024-bit key;\n unprotected) header.d=synopsys.com header.i=@synopsys.com header.a=rsa-sha256\n header.s=selector1 header.b=raTtiz0y;\n dkim-atps=neutral"],"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 4fnKDL0xKmz1yCs\n\tfor ; Sat, 04 Apr 2026 00:23:30 +1100 (AEDT)","from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id 404904BA23F9\n\tfor ; Fri, 3 Apr 2026 13:23:28 +0000 (GMT)","from mx0a-00230701.pphosted.com (mx0a-00230701.pphosted.com\n [148.163.156.19])\n by sourceware.org (Postfix) with ESMTPS id 1AB6D4BA23D3\n for ; Fri, 3 Apr 2026 13:22:56 +0000 (GMT)","from pps.filterd (m0297266.ppops.net [127.0.0.1])\n by mx0a-00230701.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 633DLVTq2645740; Fri, 3 Apr 2026 06:22:55 -0700","from smtprelay-out1.synopsys.com (smtprelay-out1.synopsys.com\n [149.117.73.133])\n by mx0a-00230701.pphosted.com (PPS) with ESMTPS id 4d9y92m81w-1\n (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT);\n Fri, 03 Apr 2026 06:22:54 -0700 (PDT)","from mailhost.synopsys.com (sv2-mailhost2.synopsys.com\n [10.205.2.134])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits)\n client-signature RSA-PSS (2048 bits))\n (Client CN \"mailhost.synopsys.com\", Issuer \"SNPSica2\" (verified OK))\n by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id AD3BB40121;\n Fri, 3 Apr 2026 13:22:54 +0000 (UTC)","from o365relay-in.synopsys.com (us03-o365relay3.synopsys.com\n [10.4.161.139])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits)\n client-signature RSA-PSS (2048 bits))\n (Client CN \"o365relay-in.synopsys.com\",\n Issuer \"Sectigo Public Server Authentication CA OV R36\" (not verified))\n by mailhost.synopsys.com (Postfix) with ESMTPS id 521A0A021F;\n Fri, 3 Apr 2026 13:22:54 +0000 (UTC)","from CY3PR08CU001.outbound.protection.outlook.com\n (mail-cy3pr08cu00100.outbound.protection.outlook.com [40.93.6.104])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange ECDHE (P-384) server-signature RSA-PSS (2048 bits)\n client-signature RSA-PSS (2048 bits))\n (Client CN \"mail.protection.outlook.com\",\n Issuer \"DigiCert Cloud Services CA-1\" (verified OK))\n by o365relay-in.synopsys.com (Postfix) with ESMTPS id 9F80440543;\n Fri, 3 Apr 2026 13:22:53 +0000 (UTC)","from PH0PR12MB7886.namprd12.prod.outlook.com (2603:10b6:510:26e::22)\n by SJ0PR12MB5664.namprd12.prod.outlook.com (2603:10b6:a03:42b::18)\n with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9769.20; Fri, 3 Apr\n 2026 13:22:46 +0000","from PH0PR12MB7886.namprd12.prod.outlook.com\n ([fe80::98cd:71e5:b969:6376]) by PH0PR12MB7886.namprd12.prod.outlook.com\n ([fe80::98cd:71e5:b969:6376%5]) with mapi id 15.20.9769.017; Fri, 3 Apr 2026\n 13:22:46 +0000"],"DKIM-Filter":["OpenDKIM Filter v2.11.0 sourceware.org 404904BA23F9","OpenDKIM Filter v2.11.0 sourceware.org 1AB6D4BA23D3"],"DMARC-Filter":"OpenDMARC Filter v1.4.2 sourceware.org 1AB6D4BA23D3","ARC-Filter":"OpenARC Filter v1.0.0 sourceware.org 1AB6D4BA23D3","ARC-Seal":["i=2; a=rsa-sha256; d=sourceware.org; s=key; t=1775222576; cv=fail;\n b=GC4IsM3I3TIqqpc7XxxM6Pp84KyWEc5l26Q/hXorMk5CGW75WUUzIn6KTRpRpYqjPsbGRF+ks9jND4aGUKmhxwIyte0Od7z86fJ+08tcgV7zUa/yTnUja41IuN9jFterubYj6cpcCaKDgdmkuv+qb58UTFHH+amg32MPQc+CV+U=","i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none;\n b=iyNmpdVcRXxq9yG8EmqqneAATpri6knTy374PUXUK6JPmBh+tALgV3tLpmkygx8XusYbJxNGB64FIzA+rUBr+beEJxmPfgpujLfqRDCB30GSpnq+kOTouVofgzjxE33QHTrasKCEpiXrCmJC53MDjfTkErTfiwgmo4/AS40kdYeZWFyHc0JkC6ZPg9xBos0jAd8lP+jZ4iec1RgPwyV3rwqrEMnEf3EfZJjLH3AmNm9cxLdv9TqiVISID9JeJz6eBPT1MBxlx0T78n00FDEmL6SAmvXChyMseYhmycgO+wsB362cCH9tD8XNnh6m2LOxvHwlbKGONxuv5bbjqmC8mA=="],"ARC-Message-Signature":["i=2; a=rsa-sha256; d=sourceware.org; s=key;\n t=1775222576; c=relaxed/simple;\n bh=3DnlumJUvLLb7eoVjfckuNel0KajNuzvAIpGo/63qeA=;\n h=DKIM-Signature:DKIM-Signature:DKIM-Signature:From:To:Subject:Date:\n Message-ID:MIME-Version;\n b=RHS2No/a8T+7GaPQJB5tvCcMBpnpDq3/z+eNlm+V/lPQ5rT9F3RTUCYwYzyNBf3quy+tSW02ujbOo5Pf3MYJJVLRXRNiXW0EPn0zhjPEkvYXUUJLbPwkbgW2PucX9lh3sK60xi/IgrDu2qushCOW5SXYwsl3ncWsM3PF1NkfEWc=","i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;\n s=arcselector10001;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1;\n bh=3DnlumJUvLLb7eoVjfckuNel0KajNuzvAIpGo/63qeA=;\n b=DiRWD+5MrMyak6m6dIllo6WwoPqm9cebqzpB6cT6H1+KxmF5VVbPWMqsEIdmPr5YNBlq6N9oZpZ8sCZnNpmHFxDBFW+8KLpqixQPfWOEpwijyglr7vXkdS32kqolTVzzs5ET8QGUsYz+KGZqE7PjXrLwhKpsF94Zel/qXkWClhJvDnzkYaAqh+3agG5ec0yQZ2YEPlNwtMcGlNxyvILC1Oune/WYlzshYDxIwR2mRkSQDHU7ILCQD9/LLnYJP44d2F9Uo9oq12YEMlYtZwT1wNLZ+OIWlBDymd7ckgfVDEi+cRUfkfFiDxkNE6fpXEEMHcsbpB3cgsSKwGdQ6FXYBA=="],"ARC-Authentication-Results":["i=2; server2.sourceware.org","i=1; mx.microsoft.com 1; spf=pass\n smtp.mailfrom=synopsys.com; dmarc=pass action=none header.from=synopsys.com;\n dkim=pass header.d=synopsys.com; arc=none"],"DKIM-Signature":["v=1; a=rsa-sha256; c=relaxed/relaxed; d=synopsys.com; h=\n cc:content-transfer-encoding:content-type:date:from:in-reply-to\n :message-id:mime-version:references:subject:to; s=pfptdkimsnps;\n bh=3DnlumJUvLLb7eoVjfckuNel0KajNuzvAIpGo/63qeA=; b=P6D/2mFo6m0f\n WBKiZLhm/dwaEPDcoJDPfC9Fzc0sNddADaVpgsFu/FLzg3ynspAcsLU3ksF0z9iq\n lmy1UiNjUpkA6gQsFiTRzT29xpEbzL0AjPoi6mdUChTbClTqK9+IjYed3yBltA6S\n NQX30oueu6jh+WM0b91Z4GlZeHSOLIgqYCmF0AcoiIiD3kKK1y57rPbk5qmqIu9F\n i1hbeiVwX1LdJVibu1DOQ9DhTAqHBW6gTh8dbzNzJGWc58fDRSNvU7Jcyq/78Kam\n gj8UIKUaQ1dXgZNn+vQHAwXuTu6nHdbkyR7RWx93FZOdUb1sX12Kil0R3dbFWRhw\n HlMFS0R9+w==","v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail;\n t=1775222574; bh=3DnlumJUvLLb7eoVjfckuNel0KajNuzvAIpGo/63qeA=;\n h=From:To:CC:Subject:Date:References:In-Reply-To:From;\n b=Hy9znJHDPK6YP76fvuSrhSNRvK+0l/zs+o4tjmNNE8UrLG29Ry4jWceefyRyIflzt\n n25eZgKLlQkfMyvIHUIemwrjoGfaRiSqnlAMWU0Wi4yEXu6bEC4S0l6uNat8hhd3Hj\n KgkRwc2+bCismuIt4T10Q2b8Z3C6mE1mMYs5YUQnqI+GS35dk9yCRrBkDReBtkF0zg\n 67dntqE/ml6HjR1DDFmDih+qzEC6/RXdJOC2lA4GAjY8CwcsAuiog8mVSsSzeukRQt\n 8CWkDLOaCfyWd31AFh9JNcCuf6tmqMOgwADWDNz913hLuz6Z/TzRJh4z5Mv4I9DWwv\n Vp7WHMzPro0Cg==","v=1; a=rsa-sha256; c=relaxed/relaxed; d=synopsys.com;\n s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=3DnlumJUvLLb7eoVjfckuNel0KajNuzvAIpGo/63qeA=;\n b=raTtiz0yiR5f64K+8/+TE4YHmhmzRkqZ/Aj6yauuTfk9punXtN5TCUkZyL6Qpo6q2c9aiFwG73DOyeJOeyyfTzjdv3JYI3a9PrvvTZD3/u9250EVIZJD8XIrdNMhnaoRfvYPlxUdGh/QFue8grBfLrQ7TwUpZz1z+JoA9fUXls4="],"X-SNPS-Relay":"synopsys.com","From":"Michiel Derhaeg ","To":"Jeffrey Law , \"kito.cheng@sifive.com\"\n ","CC":"\"gcc-patches@gcc.gnu.org\" ","Subject":"Re: [PATCH] RISC-V: Omit ghost from the pipeline-checker output","Thread-Topic":"[PATCH] RISC-V: Omit ghost from the pipeline-checker output","Thread-Index":"AQHcw1udnkiQFVrRokaK/lm1tKvvFbXNULAAgAACQfU=","Date":"Fri, 3 Apr 2026 13:22:46 +0000","Message-ID":"\n ","References":"<20260403111758.3755791-1-michiel@synopsys.com>\n <3820a31c-d8e0-4f7c-83e9-be08f818c5b7@oss.qualcomm.com>","In-Reply-To":"<3820a31c-d8e0-4f7c-83e9-be08f818c5b7@oss.qualcomm.com>","Accept-Language":"en-US","Content-Language":"en-US","X-MS-Has-Attach":"","X-MS-TNEF-Correlator":"","msip_labels":"","x-ms-publictraffictype":"Email","x-ms-traffictypediagnostic":"PH0PR12MB7886:EE_|SJ0PR12MB5664:EE_","x-ms-office365-filtering-correlation-id":"ba9056c1-4651-4d0a-2bd1-08de9184189a","x-ms-exchange-senderadcheck":"1","x-ms-exchange-antispam-relay":"0","x-microsoft-antispam":"BCL:0;\n ARA:13230040|376014|366016|1800799024|38070700021|22082099003|18002099003|56012099003;","x-microsoft-antispam-message-info":"\n 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","x-forefront-antispam-report":"CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:;\n IPV:NLI; SFV:NSPM; H:PH0PR12MB7886.namprd12.prod.outlook.com; PTR:; CAT:NONE;\n SFS:(13230040)(376014)(366016)(1800799024)(38070700021)(22082099003)(18002099003)(56012099003);\n DIR:OUT; SFP:1101;","x-ms-exchange-antispam-messagedata-chunkcount":"1","x-ms-exchange-antispam-messagedata-0":"=?iso-8859-1?q?rVlWmpsH2cWFf0JcwYRy0PV?=\n\t=?iso-8859-1?q?7jd+WMEMVXdylgEEbT6mLVqTqY/rBoZvSkkj6hb2g5nI0zUp822rohN7UzRr?=\n\t=?iso-8859-1?q?c7mHseN5U8kJ1Gv/1NB2mR7fyun4xxTkQG/ohL3c36KOg43Pl9a6xe/9I0ZB?=\n\t=?iso-8859-1?q?KHb+JSP4R7STK5ykcwqEVKwQz8fVFt2hxT5TZFehogUC/qAl27tAgv2aflwB?=\n\t=?iso-8859-1?q?05JjPkZ0UGRifMt7wPPxzdEvssFd85HMFAIV7CYcKoQ2+WwE3nGZMMR3QWz2?=\n\t=?iso-8859-1?q?JAEbStG7NK/bRGTZ1zSQ3WhNC0/010+Mvf0L7nJ0exRVnMu2yCjatrErhySA?=\n\t=?iso-8859-1?q?V1NefKi4wCmtvk63suMViixdXqD80vsDYOXo5PDHDiC4Npfcx4LOiCo/TaW8?=\n\t=?iso-8859-1?q?VSxLqiPf52uwN1pBOZIwMFN4zNMP7jSD5e3SJeL0toLvwBh6VgKZ8ux4O6At?=\n\t=?iso-8859-1?q?Vp7sQsP6n5GqpyntGHJ3q0PETy4zQpXC/2xNAPIBlhlRs9j/h/j0SvQ2FK56?=\n\t=?iso-8859-1?q?1+BlcwVlpJsRf48sjdzK2GtwfAMzLreIcv2sIhtMMSk9xhQLh+BQBGstnzxw?=\n\t=?iso-8859-1?q?gE5ywxLbWQqPkyXwx8fRwBnDzK+8DjYss0CWgwp8TSoLT0j94w04TGtl3H9k?=\n\t=?iso-8859-1?q?gfJNgzNlOQaf7ocEb2JVe8uJ73CdbRPKXbR5MnujUDGEWxp0eL+wLn2uDsW5?=\n\t=?iso-8859-1?q?0/hPLPgc6AyXXdSzZQrNVvR46lRsqU8Zi8Gq6OSoOsqC9Ta5fUh5VD82AHzP?=\n\t=?iso-8859-1?q?r3xqMUrp3kVYdHtwlVwtx3fNbnXPEruSrhjowqU+5jEJ4Vbvk+6ogtszNOHX?=\n\t=?iso-8859-1?q?NhTsVXnA0oP1BbUYlBPsDIiXxVlkOVsv19Xx+1BFZpcqN2y19hQyWbZfu0ha?=\n\t=?iso-8859-1?q?38tTp1/WxFmAnGsv8pKDEx8vZsg4Ir19ObelKEip4K261HdklawW6+owM7GL?=\n\t=?iso-8859-1?q?kjwOWIKickjHOynBlFRLiNCBSrPq42ALpdHwPqofKALdWkWMq7GNIfyVvuIY?=\n\t=?iso-8859-1?q?/aRxNXkVSGTqUhDf543WStbMGs8GIG4QCQ3TgLcZ7C5lJMwBxKB3ScoWIHev?=\n\t=?iso-8859-1?q?XbhxOsty3T/rT6EKJy4+d1UjgEQ8yvKl261qRTW3Ct2dgCEcDmzptaJG6BI8?=\n\t=?iso-8859-1?q?XTFX0Q0SzUkKWlxNeFK0TuGXe11KetyL9eF3BrdjIE+EVvaHk7eAI84aeZdF?=\n\t=?iso-8859-1?q?V/lmYP66cprmws+dcHQCIv2pNVBfnMtCbGBpjOU8UseNVSns5ZsDh0XZ2oiO?=\n\t=?iso-8859-1?q?JrgMTHk4jZIiNp0EmfRifqZ24+x64ElSlt/Nfyoygo1MXtXDEfhnNC3FmD/N?=\n\t=?iso-8859-1?q?CNWoekIdGONARepyEWz1/NnOty2L53NViv3K272cDNnp27lj1i2VeDFx9q5S?=\n\t=?iso-8859-1?q?O0O9t10yF7zxM2sttQP7nnZqsf60LZNtvFYXC9Jhy70Wc7s1eEn4MGBwVyHy?=\n\t=?iso-8859-1?q?tshFfI2dN+TkU9hss3jvJ75beIRKBJrBuZWo1MY2l0A/BCJXqTikRH/PdS39?=\n\t=?iso-8859-1?q?NYnIGRyqhG4zhwm1ZInMfuhlJMsvNBNi88GQc9gwMpQconUQFncJpVbg5d8s?=\n\t=?iso-8859-1?q?rQ4ACGjhfRz5h42bcSr8gmzp1KAsnQcfhiGaoFSq96y3vZsnX2lhxq4G9hv6?=\n\t=?iso-8859-1?q?66tSynp5A6FhDL7fUqVNWCY/Jl0MO/RTdhzroW+PhxrNUpVORtHVxRET//PV?=\n\t=?iso-8859-1?q?ArWBEfldVT+qrYSlGlKC1GdxXH/ksQFXW9Hozr2/YBsqj0Dd54OnrOQwKgQV?=\n\t=?iso-8859-1?q?bulVWgplCrpBZ6mupuWqof5V3?=","Content-Type":"text/plain; charset=\"iso-8859-1\"","Content-Transfer-Encoding":"quoted-printable","MIME-Version":"1.0","X-Exchange-RoutingPolicyChecked":"\n XVDDWun9f8MF/o8mNHzOtMk9c4wqW69OsBM9/CD8IBFHgnXeUAktuZMcZC0nqMc5LHTcl7u0XdAErZ4d8hegvmocldJy3qUZ+wO2jcuKs4P0t19gsMUb7wmhFgL4PzeNi/3xal2AkfOa8kjbT2pd0xPX6Nlps3/Degi8bYxOn33GXRyPfp1gWFviX9A9+4ymEVHAp0OKwdZBfwydAPX3f2vbjLqPvnzogUncHjlviX2Q1jY+8KrPtyGR48aTjSWdyG6IC2K4JlHcW6a1gbDGf3OppzlpJy5u0lhTFo47U3unhjWIJklk2kmG4QHNUox1xyHQAPgQP1+ZLp3A8ha7JQ==","X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount":"1","X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0":"\n 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","X-OriginatorOrg":"synopsys.com","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-AuthSource":"PH0PR12MB7886.namprd12.prod.outlook.com","X-MS-Exchange-CrossTenant-Network-Message-Id":"\n ba9056c1-4651-4d0a-2bd1-08de9184189a","X-MS-Exchange-CrossTenant-originalarrivaltime":"03 Apr 2026 13:22:46.6966 (UTC)","X-MS-Exchange-CrossTenant-fromentityheader":"Hosted","X-MS-Exchange-CrossTenant-id":"c33c9f88-1eb7-4099-9700-16013fd9e8aa","X-MS-Exchange-CrossTenant-mailboxtype":"HOSTED","X-MS-Exchange-CrossTenant-userprincipalname":"\n APOrz03iHwBIxkZ98zyKDISmLJLx+dSRuN7J3yYeYwILSOP1Q1sVo8wdXma66Z9eUjKCLvd+91gs58haIrTevQ==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"SJ0PR12MB5664","X-Proofpoint-GUID":"HViRUZWrmo7cKqCVL4FBuuAP0l_6xO10","X-Proofpoint-ORIG-GUID":"HViRUZWrmo7cKqCVL4FBuuAP0l_6xO10","X-Authority-Analysis":"v=2.4 cv=Hot72kTS c=1 sm=1 tr=0 ts=69cfbf2f cx=c_pps\n a=8EbXvwLXkpGsT4ql/pYRAw==:117 a=8EbXvwLXkpGsT4ql/pYRAw==:17\n a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19\n a=xqWC_Br6kY4A:10 a=8nJEP1OIZ-IA:10 a=A5OVakUREuEA:10 a=qPHU084jO2kA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=tU_645BZ7FZt8VqRJtHG:22 a=Wo6YDfOMAEstGd-0DxeT:22\n a=EUspDBNiAAAA:8 a=jIQo8A4GAAAA:8 a=pFyQfRViAAAA:8 a=mDV3o1hIAAAA:8\n a=g0Aj6P8XqKaynsavmHkA:9 a=wPNLvfGTeEIA:10 a=oJz5jJLG1JtSoe7EL652:22","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDAzMDExOCBTYWx0ZWRfX169NYswXTVXW\n x0ft3Pzc0TDF/FD/mL2k/Ar9nmjgORsd34PbuZPoEloBNZ9oAuBXFI85yM0wURa30OfN/544tBu\n W6KUmqxcK+04Oe/srDYslb8ZmtGvPYrOBQzoPVSUV2OytFk4Z14GdOm+S6K8s0CGhAVOuiYkpJ+\n 19eTHisJNXWCci2kK9KQkukjYY2NKVimBMsX2Tj/UvY/Z9uA/KYYhY5EgvbhZ+6IxKINjbBw3uc\n rdG0PDH/OnU5DAQDMT/GB+Rh0UdFAW+idtTl6yJ6aULlMV0/9JD7OQmP1StMOvwGM7C1T83zWDi\n A7HQU4TiTuynlK0E8XS7WERSylz0onGytFbTq/sQNXcmlWm8RQr9wNdki+42TAAF4b5LJsg+s/Y\n sQiL4Yo/iKLDJSqZCABEzTyKPv3uEJDBRHM/GC6daAm8BeIeFYXlPVVALqmqSNd3EqoVkV3sFTJ\n IOJBP/RrnABuzCWVbCQ==","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-03_04,2026-04-03_01,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_active_cloned_notspam\n policy=outbound_active_cloned score=0 clxscore=1015 malwarescore=0\n priorityscore=1501 suspectscore=0 spamscore=0 lowpriorityscore=0 adultscore=0\n bulkscore=0 impostorscore=0 phishscore=0 classifier=typeunknown authscore=0\n authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1\n engine=8.22.0-2603050001 definitions=main-2604030118","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}},{"id":3673136,"web_url":"http://patchwork.ozlabs.org/comment/3673136/","msgid":"<011746e2-3dcb-415f-8807-56bab968b3fe@oss.qualcomm.com>","list_archive_url":null,"date":"2026-04-03T13:27:44","subject":"Re: [PATCH] RISC-V: Omit ghost from the pipeline-checker output","submitter":{"id":92310,"url":"http://patchwork.ozlabs.org/api/people/92310/","name":"Jeffrey Law","email":"jeffrey.law@oss.qualcomm.com"},"content":"On 4/3/2026 7:22 AM, Michiel Derhaeg wrote:\n> Even though it is already defined in riscv.md?\n>\n>     ;; Ghost instructions produce no real code and introduce no hazards.\n>     ;; They exist purely to express an effect on dataflow.\n>     (define_insn_reservation \"ghost\" 0\n>       (eq_attr \"type\" \"ghost\")\n>       \"nothing\")\nI never knew about that.   Quite a surprise.  It's certainly a better \nsolution than forcing everyone to include ghost.\n\nI really wish this stuff had inheritance or some sensible hierarchical  \nstructure.  But that's not the world we live in ;(\n\nI'll put it in the queue for gcc-17.  Thanks.\n\njeff","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 (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=Qmlz8yZl;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=bX/UrFFJ;\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 (2048-bit key,\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=Qmlz8yZl;\n\tdkim=pass (2048-bit key,\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=bX/UrFFJ","sourceware.org; dmarc=none (p=none dis=none)\n header.from=oss.qualcomm.com","sourceware.org;\n spf=pass smtp.mailfrom=oss.qualcomm.com","server2.sourceware.org;\n arc=none smtp.remote-ip=205.220.168.131"],"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 4fnKKs0NZ4z1xtJ\n\tfor ; Sat, 04 Apr 2026 00:28:16 +1100 (AEDT)","from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id EADEB4BA23E1\n\tfor ; Fri, 3 Apr 2026 13:28:14 +0000 (GMT)","from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com\n [205.220.168.131])\n by sourceware.org (Postfix) with ESMTPS id A26434BA23DA\n for ; Fri, 3 Apr 2026 13:27:47 +0000 (GMT)","from pps.filterd (m0279866.ppops.net [127.0.0.1])\n by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 6336Uw2G947855\n for ; Fri, 3 Apr 2026 13:27:46 GMT","from mail-dy1-f198.google.com (mail-dy1-f198.google.com\n [74.125.82.198])\n by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4d9xwfjpa8-1\n (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT)\n for ; Fri, 03 Apr 2026 13:27:46 +0000 (GMT)","by mail-dy1-f198.google.com with SMTP id\n 5a478bee46e88-2ccc035f125so140684eec.1\n for ; Fri, 03 Apr 2026 06:27:46 -0700 (PDT)","from [172.31.0.38] ([136.38.201.137])\n by smtp.gmail.com with ESMTPSA id\n a92af1059eb24-12bedd4e623sm4551260c88.3.2026.04.03.06.27.44\n (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128);\n Fri, 03 Apr 2026 06:27:44 -0700 (PDT)"],"DKIM-Filter":["OpenDKIM Filter v2.11.0 sourceware.org EADEB4BA23E1","OpenDKIM Filter v2.11.0 sourceware.org A26434BA23DA"],"DMARC-Filter":"OpenDMARC Filter v1.4.2 sourceware.org A26434BA23DA","ARC-Filter":"OpenARC Filter v1.0.0 sourceware.org A26434BA23DA","ARC-Seal":"i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1775222867; cv=none;\n b=ZpZ36c0K1hSxwnO0qEn2pIg78+Dp4XwKJYNiRLzbzeC6g0H1gY5ij9UNCdlsCLRqzgwJI93CqbvF+bENmRzgu4Akw0CU9kNuL8yRqwOyBk27C4dlJcBRT6Dw8jJTT5d/mjxBi4xCYLAG17ttzkZXRZrvi+Q/anYzMHlgBoAj6KU=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1775222867; c=relaxed/simple;\n bh=0zGpilbSLqp0Aueb3dBKu/gKExonLKnbY1Ju71GWcno=;\n h=DKIM-Signature:DKIM-Signature:Message-ID:Date:MIME-Version:\n Subject:To:From;\n b=hpXvzlbsPqQGqyaWfmQynsy/pzz7ZkejE56UID64IzOelvI2p61m/jY5DLA6oY3V9J4hi6vWqB2+7WQ9Wh665LqKwmYrbO5+zp6R0G3n+ckmYK3jsQmRyorIqf/fGWo9bcAgNr5Lb66nD5iBqrivuTd85YFAHRyHrTUROEc5NmM=","ARC-Authentication-Results":"i=1; server2.sourceware.org","DKIM-Signature":["v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h=\n cc:content-transfer-encoding:content-type:date:from:in-reply-to\n :message-id:mime-version:references:subject:to; s=qcppdkim1; bh=\n LRrdF71PnhuIAumgVJUYQttonNw1xLL5q/WZnnpViKY=; b=Qmlz8yZld6V4EQ0/\n CqZOvKuJZSvb87azo9IGHz9GWVBgsj+nx1nrMsGXXYfn3uFMDw6979q+yt0BYt5C\n BlBQect8bsxUlcTYVLhTmtP2xC3hzhK0HaMHS/cVp35IrPH4V9CXkyv/DTAouP6Z\n 47nWdNhR6Qp41tfcez4CapQ24x7bAoDl6G2gyJ3eJ4ACtFBEDtlffOU8hkjvadOo\n /QjnaIaF8ZiEg0r4yZitkoFV7fKnqb2vKt0hQ2BNclQPLHBoTlKk48ugBuElepN4\n 37WC/ireP3YRPS8VbUr+BNQGdRVw6TxdOc+Khfcu5WRZZ5ZJhQRArU5WcBKcmYgf\n 3dnfVQ==","v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=oss.qualcomm.com; s=google; t=1775222866; x=1775827666; darn=gcc.gnu.org;\n h=content-transfer-encoding:in-reply-to:from:content-language\n :references:cc:to:subject:user-agent:mime-version:date:message-id\n :from:to:cc:subject:date:message-id:reply-to;\n bh=LRrdF71PnhuIAumgVJUYQttonNw1xLL5q/WZnnpViKY=;\n b=bX/UrFFJfVVBmPEJtVSJYnS8V0aQVrkxibnjXF+lQ9ItWYTJV79wQc7d+FLPbMke3Z\n KpnzFheCeq9jwS22Wq5/lJrDRy5v0aT3ZLdHliA1N31nuRltWm8gEe89GVHzzQVHa5X/\n fgQwCwEmRGXe9QAwHVctkj1UFiHTEIaHDeynKdZxT9PImAYVaZ9ebkHk+Rsk4xKLqGUb\n dav4sA3Ui4Fp47DS6UCj7HtT5Zy1eQKGD959tNY4PAcM7bLyh9jxMPv5LZ0Wg1WcogrS\n zLceDgTTrpwEAQKyEd6ZpPz8b4QvPlVSrcPLBdcnVnaFS9xPKdxI9+370CMy+S5RXqTY\n fT3w=="],"X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1775222866; x=1775827666;\n h=content-transfer-encoding:in-reply-to:from:content-language\n :references:cc:to:subject:user-agent:mime-version:date:message-id\n :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id\n :reply-to;\n bh=LRrdF71PnhuIAumgVJUYQttonNw1xLL5q/WZnnpViKY=;\n b=YzO7SoLLnjFNhuVzygHL4c7A72Ba3Lq77BfAYQGBIXQgTvrbwhk7Pmoh8G56Vp3aG2\n CN+B+9owExpgOePinZKBbAI337cuNfwxDVFQdqprIxWaycn1P+nEMkxJyhDYMEJ6/RMd\n bByhiqJhrQOSY5byxK4tmFCz2n6nO5clX2YesulWBH9SlVYS8HafOvz4H5EzLT45AaW7\n m1zi2gR3/yJkQYEi2kDS3+NpPoEznUtIWlw1s+oeZt0EOzL1APboB3XbZ8Xpe/k8FEhI\n H4ZlXnEvhaJIdsqsXBc4ovHPI4EHephxcDdYkXRiJ5tOgGwpd6TzGM1U6tddjMfz7gq7\n fYGA==","X-Gm-Message-State":"AOJu0YzOYSGb6JQUZ0Jd9rAVVS3hiqKpqPHFwy0ApSAPp1XDvSfI8gQ3\n qEjd8uDdI5V/VrCpuiYODVm9MboXjwb927EnM7VKe4UAyG2J0zbm1Wd8zda8jtxZ2/LFh6k7YBs\n l4quWfnHeoxzv9f+OA57L0n5/WkLDxsq5tyc+28egIcZPxX8SQEujBVp3Du9H","X-Gm-Gg":"ATEYQzwaQ39ETJKFVldypEOw+JnyUg2rbi9DzosAnr5nwHSAdxI1GxWBN99xRgLPmQO\n elD4tx49F5WeGuUVEQsCl2phEcl7Uic91ztwVf6shqueQP2eFfIB6X6EmLZ8dgGG/bEQQwYFRNh\n l8hJ3ugJdQEHYOj3D2hpsmELh2GPnYrLNoj3mmcKTtVFHznLFrvOmhhivV0nwbrm5UNFi0d/g+V\n V3TqAUGor8Uzl9bu/66LjQN1Kk3IUJui1b3d6AQsp9nLLOTR0XYF4t2sqs9BtoZRpR/wu4Ycyyh\n B8MnDlP3Niiq9HRl5Gmsrds3kNbCtJyj3npnbz8JWEsG/p4pDsrhxriOPOPfOZU2f0a7/tU9Gmc\n 5BtK8Vh0kYwlbsQoGtSoInY4j9b1tzqLs+EXi8xHRM9kjqBfZjQ==","X-Received":["by 2002:a05:7022:f20e:b0:128:f1fd:78be with SMTP id\n a92af1059eb24-12bfad1307cmr1192075c88.5.1775222865904;\n Fri, 03 Apr 2026 06:27:45 -0700 (PDT)","by 2002:a05:7022:f20e:b0:128:f1fd:78be with SMTP id\n a92af1059eb24-12bfad1307cmr1192062c88.5.1775222865255;\n Fri, 03 Apr 2026 06:27:45 -0700 (PDT)"],"Message-ID":"<011746e2-3dcb-415f-8807-56bab968b3fe@oss.qualcomm.com>","Date":"Fri, 3 Apr 2026 07:27:44 -0600","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Subject":"Re: [PATCH] RISC-V: Omit ghost from the pipeline-checker output","To":"Michiel Derhaeg ,\n \"kito.cheng@sifive.com\" ","Cc":"\"gcc-patches@gcc.gnu.org\" ","References":"<20260403111758.3755791-1-michiel@synopsys.com>\n <3820a31c-d8e0-4f7c-83e9-be08f818c5b7@oss.qualcomm.com>\n ","Content-Language":"en-US","From":"Jeffrey Law ","In-Reply-To":"\n ","Content-Type":"text/plain; charset=UTF-8; format=flowed","Content-Transfer-Encoding":"8bit","X-Proofpoint-GUID":"J58bA8dAPKchTOOX5zEtjBDyuNYqEkmY","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDAzMDEyMCBTYWx0ZWRfX5qQni6Hxfk4H\n fJ+mkccYHHyqaqUR7k42tlQAXGiLidNuTtsunGbvZsiVQnjylRt8rE6HLLjR59hLwUnRQRt/8yM\n PY+1LdmKT1TlBWZucBRzov8oh6yZEA7uyy7Qn+DqaOnbnOUnHatrOBh7QHIvunXd+uNnWYuXy20\n V9HvR4mYMrBHqrTMjHiG9UJ4uvpW1JgtHYwlLTw20GSVLcw8F3rKSpTPqnr10oc/dTzb2q8Dhf2\n SOnajvX36xa6drpg4lSdcWGUbSR0VphXyIQwvRWPjCpj/f1JqZmkPgI9REvCoD4wMQoiPj/U6w8\n l+jGqqLgVbhqeegqhPJpMme97B0P5ryx1COSZqvZLu+2fz21tQGfgGeEkFGCEJF/SEF875sLFSM\n AJcfKSDVWJtCriaPh4dN5ncVqYS1QHJTXkBmMdfiX+j+yEkMQ2268JRgsyy3zC4XJcWSpKVbuv0\n UgIIEIiTuU4EyZjfwMg==","X-Proofpoint-ORIG-GUID":"J58bA8dAPKchTOOX5zEtjBDyuNYqEkmY","X-Authority-Analysis":"v=2.4 cv=fOo0HJae c=1 sm=1 tr=0 ts=69cfc052 cx=c_pps\n a=wEP8DlPgTf/vqF+yE6f9lg==:117 a=asGLMfRmzhnGNxaIYohjRg==:17\n a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22\n a=F_-FEiKXswTioTwL1vgA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10\n a=bBxd6f-gb0O0v-kibOvt:22","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-03_04,2026-04-03_01,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n spamscore=0 lowpriorityscore=0 impostorscore=0 clxscore=1015 malwarescore=0\n suspectscore=0 priorityscore=1501 phishscore=0 adultscore=0 bulkscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604030120","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}}]