[{"id":3686980,"web_url":"http://patchwork.ozlabs.org/comment/3686980/","msgid":"","list_archive_url":null,"date":"2026-05-06T07:03:14","subject":"Re: [PATCH v4] RISC-V: Apply LMUL cost scaling to vector operations","submitter":{"id":86205,"url":"http://patchwork.ozlabs.org/api/people/86205/","name":"Robin Dapp","email":"rdapp.gcc@gmail.com"},"content":"> This patch introduces multiplicative cost scaling (x2/x4/x8) to model\n> the higher latency and register pressure of larger LMULs. The scaling\n> is applied uniformly in adjust_stmt_cost for all vector operations.\n>\n> In addition to VLA, VLS should also get the same LMUL cost scaling,\n> but doing so causes too many testsuite regressions currently,\n> mostly because these tests also need expectation updates.\n> This is left for future work.\n>\n> All failures displayed in CI should have been fixed. Changes here are\n> all expectation updates, except for slp_run-17.c which is pre-existing\n> — I will open a PR for it later.\n\nOK, thanks.","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=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=Lv7DmKz0;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=38.145.34.32; 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=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=Lv7DmKz0","sourceware.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com","sourceware.org; spf=pass smtp.mailfrom=gmail.com","sourceware.org;\n arc=none smtp.remote-ip=2a00:1450:4864:20::32a"],"Received":["from vm01.sourceware.org (vm01.sourceware.org [38.145.34.32])\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 4g9XQc49Rbz1yJq\n\tfor ; Wed, 06 May 2026 20:57:28 +1000 (AEST)","from vm01.sourceware.org (localhost [IPv6:::1])\n\tby sourceware.org (Postfix) with ESMTP id 882C34BAD142\n\tfor ; Wed, 6 May 2026 10:57:26 +0000 (GMT)","from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com\n [IPv6:2a00:1450:4864:20::32a])\n by sourceware.org (Postfix) with ESMTPS id 54EBA4BA2E38\n for ; Wed, 6 May 2026 07:03:19 +0000 (GMT)","by mail-wm1-x32a.google.com with SMTP id\n 5b1f17b1804b1-488af96f6b2so76532815e9.0\n for ; Wed, 06 May 2026 00:03:19 -0700 (PDT)","from localhost (ip-085-216-098-084.um25.pools.vodafone-ip.de.\n [85.216.98.84]) by smtp.gmail.com with ESMTPSA id\n 5b1f17b1804b1-48e53891d62sm39968775e9.1.2026.05.06.00.03.14\n (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128);\n Wed, 06 May 2026 00:03:15 -0700 (PDT)"],"DKIM-Filter":["OpenDKIM Filter v2.11.0 sourceware.org 882C34BAD142","OpenDKIM Filter v2.11.0 sourceware.org 54EBA4BA2E38"],"DMARC-Filter":"OpenDMARC Filter v1.4.2 sourceware.org 54EBA4BA2E38","ARC-Filter":"OpenARC Filter v1.0.0 sourceware.org 54EBA4BA2E38","ARC-Seal":"i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1778050999; cv=none;\n b=pF/HcZ66d+m02DfyU6+ek28YNOky9/D94rNrWxVIo4tTVbkScpec7KtGv0GhD8kJlWBCise7l4eG/Vqa/p0bIbKtgFgmFgxz1r411KDVucIR5LmlAVLUoYDaUYoFWxQpnlkHFhvAz8f3Wz/7NBsUn2H6TSSgXmTvCqxOFJcPSYA=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1778050999; c=relaxed/simple;\n bh=eDp2ovKkIYLw+39bTS42S3h5jPwylv8OsIzX/L9sHvQ=;\n h=DKIM-Signature:Mime-Version:Date:Message-Id:Subject:To:From;\n b=qRQ2t0cv77CKOHEzY9eJuDUQh1VqUZc1uKibtB8+C3sTy+HoGO0kXRywjE+Enxwll5ra9mqW4P9v88Y/33OkBk8jCTXR9mcz5katBbvJbYqaA3LUVQRE2ggJhzSVV3k5iHRePK6A7H35IbzL/baHZRPXbi01GLAUmgpk6unKzfA=","ARC-Authentication-Results":"i=1; sourceware.org;\n dkim=pass (2048-bit key, unprotected)\n header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20251104\n header.b=Lv7DmKz0","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=gmail.com; s=20251104; t=1778050998; x=1778655798; darn=gcc.gnu.org;\n h=in-reply-to:references:from:to:cc:subject:message-id:date\n :content-transfer-encoding:mime-version:from:to:cc:subject:date\n :message-id:reply-to;\n bh=gqXdYRzd92RfGJKIx/6KvFWJIU5OS4Fj+botTyLYZ1Q=;\n b=Lv7DmKz0iUYRenbwulQ0y1WsUhhaSkgK486DXxmVN+wgrWIzN0rqLMkU2L1V20wVWl\n RJOL7NfSz1bkogcA+O3LVcAaGFPPr617oOlOsN+V0MmaEaqfaRSO2jsjwDev17FosL7E\n 7yB5k3aAf6fAf07UHdXroWDHGYdOTEdkkcPxp5ecnV/sNTseaF0tnnXPA+CPwI67fReP\n jUykjxLUp3+igmyikzCM7kpKoGhKU+S6gEviyX/blPkX8LKZH4oxGe/bx+Cn66YyTMgU\n YFOI4SrlF08uU9Yl/tfxQLpLPeQzaUHl4aW3Xdnz+Ks6CivCk8kyjLmNt6cMVQsgDHLW\n ZCew==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1778050998; x=1778655798;\n h=in-reply-to:references:from:to:cc:subject:message-id:date\n :content-transfer-encoding:mime-version:x-gm-gg:x-gm-message-state\n :from:to:cc:subject:date:message-id:reply-to;\n bh=gqXdYRzd92RfGJKIx/6KvFWJIU5OS4Fj+botTyLYZ1Q=;\n b=UwQNLDZ3HsM95guee0ZFHK2FMZSZemU45IXnF/+ylm4EXC5+4tAsutltkwaScWRwWZ\n IFTA2Kq+qZgXTJOMdMK2KdvBItH2Phv9fq7M7C/nbiKVbCaqdOsKGvW4GncwwRZH/TDY\n HOj7Ioqj6NJr1kRlp3hu+7pnDFQo72R2NANvNaDFy7QJPArzGaJXhWAAmr9nxARDMv5T\n Es58ERA7ICq3YiV8wVZZbftQnA7EpQsSlay8KPDw9zir54lugM2B0Tp8Dv5RdoRNhJQV\n 5Vf3LKd70B+jxLUlu3EohQrwp/q45fR/eMU0CxnzHiEe0EhqnmwLionsOH3NaK/DIG/R\n 8D9g==","X-Forwarded-Encrypted":"i=1;\n AFNElJ8H1lbI4gc9YAPL94TH4HDcOHVDoMluPIJhiYRAJYWV6+MI93fcTtMFNhg7tytoKhbcWzN0ZSNrhztjAA==@gcc.gnu.org","X-Gm-Message-State":"AOJu0Yx86fs8PgjoKNqunwiPScmRdRA1tuZG0G98epQ9G6qqiJExjucd\n 5No/JEmrNwEqF5HVHa/Ym178rViCRc+pRF3nHwSZuw4fDypu1HQmyV0n","X-Gm-Gg":"AeBDietHy7HqJXWRL9qe0vTjZt95q2kIUAW5uCEuuppWq3VOnePx9kRMK66dLA0qeYB\n NqbpJN7glrk+8XmURuSO24cGlajg09b2FTFbo2ViceVHbWffv7zGFUpoZSWCTfIYryIY1ifDO+S\n sFKa1EbvFj/i0d2ua2gyUqytL3+y+39R/JAIiDKhi7vJRvsxigqUTIxXIr/LgebAtdfFqLExNv/\n MSj2gPb05bJGEG1B6LfLevcHxOpcxE2KIyisBLOKFnyp3AfNAyv/1iPuoSrPLK7QhkMEz9v8jOG\n /q3OTjXcM36rTJcamXPkyDA4EOgPo/KGV/EFuroUJ+ZjI58GpQkm0ojguEbqcm/n2Up5ACJe6XR\n 01HXcGHBto1JjP1++c+PRHJcpHGCahpxEAL4tAcNFpzE5zeB3UfF8Udt6IxzVrj8tC5TZMjGypP\n MGD6oUZHFBM9HCBXWeUpv0RsnRh2p44D/ooxUBOY158uc5geb0+OSxXiOzlUgBBpWCiGi8WJXxW\n ErG/L4=","X-Received":"by 2002:a05:600c:a305:b0:48d:364:6c54 with SMTP id\n 5b1f17b1804b1-48e51f4144amr25618285e9.23.1778050996471;\n Wed, 06 May 2026 00:03:16 -0700 (PDT)","Mime-Version":"1.0","Content-Transfer-Encoding":"quoted-printable","Content-Type":"text/plain; charset=UTF-8","Date":"Wed, 06 May 2026 09:03:14 +0200","Message-Id":"","Subject":"Re: [PATCH v4] RISC-V: Apply LMUL cost scaling to vector operations","Cc":", , ","To":"\"Zhongyao Chen\" , ","From":"\"Robin Dapp\" ","References":"<20260506015828.3510-1-chen.zhongyao@zte.com.cn>","In-Reply-To":"<20260506015828.3510-1-chen.zhongyao@zte.com.cn>","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":3687063,"web_url":"http://patchwork.ozlabs.org/comment/3687063/","msgid":"","list_archive_url":null,"date":"2026-05-06T13:05:30","subject":"Re: [PATCH v4] RISC-V: Apply LMUL cost scaling to vector operations","submitter":{"id":92310,"url":"http://patchwork.ozlabs.org/api/people/92310/","name":"Jeffrey Law","email":"jeffrey.law@oss.qualcomm.com"},"content":"On 5/6/2026 1:03 AM, Robin Dapp wrote:\n>> This patch introduces multiplicative cost scaling (x2/x4/x8) to model\n>> the higher latency and register pressure of larger LMULs. The scaling\n>> is applied uniformly in adjust_stmt_cost for all vector operations.\n>>\n>> In addition to VLA, VLS should also get the same LMUL cost scaling,\n>> but doing so causes too many testsuite regressions currently,\n>> mostly because these tests also need expectation updates.\n>> This is left for future work.\n>>\n>> All failures displayed in CI should have been fixed. Changes here are\n>> all expectation updates, except for slp_run-17.c which is pre-existing\n>> — I will open a PR for it later.\n> OK, thanks.\nAnd I've pushed it to the trunk.  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=PdRklWov;\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=Mm156hQv;\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=PdRklWov;\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=Mm156hQv","sourceware.org; dmarc=none (p=none dis=none)\n header.from=oss.qualcomm.com","sourceware.org;\n spf=pass smtp.mailfrom=oss.qualcomm.com","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 4g9bK86K2Sz1yJx\n\tfor ; Wed, 06 May 2026 23:07:56 +1000 (AEST)","from vm01.sourceware.org (localhost [IPv6:::1])\n\tby sourceware.org (Postfix) with ESMTP id 858CA4BA23F2\n\tfor ; Wed, 6 May 2026 13:07:54 +0000 (GMT)","from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com\n [205.220.180.131])\n by sourceware.org (Postfix) with ESMTPS id 80D234BA2E17\n for ; Wed, 6 May 2026 13:05:34 +0000 (GMT)","from pps.filterd (m0279872.ppops.net [127.0.0.1])\n by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 6468HJNF1434852\n for ; Wed, 6 May 2026 13:05:34 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 4dyuqdtdar-1\n (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT)\n for ; Wed, 06 May 2026 13:05:33 +0000 (GMT)","by mail-dy1-f200.google.com with SMTP id\n 5a478bee46e88-2f525565b33so1211090eec.0\n for ; Wed, 06 May 2026 06:05:33 -0700 (PDT)","from [172.31.0.17] ([136.38.201.137])\n by smtp.gmail.com with ESMTPSA id\n 5a478bee46e88-2f56d3d8d83sm3635611eec.7.2026.05.06.06.05.31\n (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128);\n Wed, 06 May 2026 06:05:31 -0700 (PDT)"],"DKIM-Filter":["OpenDKIM Filter v2.11.0 sourceware.org 858CA4BA23F2","OpenDKIM Filter v2.11.0 sourceware.org 80D234BA2E17"],"DMARC-Filter":"OpenDMARC Filter v1.4.2 sourceware.org 80D234BA2E17","ARC-Filter":"OpenARC Filter v1.0.0 sourceware.org 80D234BA2E17","ARC-Seal":"i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1778072734; cv=none;\n b=a4vOnzUtv3Ki7Pv1hlV88BPtYBhRk8QPehTsGsXLLN4jFyYJ9DFpMrKdz50x7MDrxbkaYBDrJ84uU22GcNZjMuENYV+VJfIH7ph5IBo9i9LEfbJs6+1c2k7FHZIsK8TBgTLwR3XGGN+5etyALSmMoTfDU12Z9yZjboVnHLCz9bs=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1778072734; c=relaxed/simple;\n bh=U5xdggHlwJhpytCK4TIGju45UQ6sgXY/hD6IXTv91BU=;\n h=DKIM-Signature:DKIM-Signature:Message-ID:Date:MIME-Version:\n Subject:To:From;\n b=PaKby8z3fotM5jvux4f4EWFfsTA2bOkF50djKQyaR3xnHrG6+URRi5BGHnmLr/G3D9fPrMAUr0+9MyW4ZFoRB8PN0sSIGcIDkJkuNMxqDCur6vG+YKMlZrQDtYgGkbE9TCYx9o3D/5apeN30+qknRhxGhs1y9VqshyrhAIoWA58=","ARC-Authentication-Results":"i=1; sourceware.org;\n dkim=pass (2048-bit key, unprotected)\n header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=PdRklWov;\n dkim=pass (2048-bit key, unprotected) header.d=oss.qualcomm.com\n header.i=@oss.qualcomm.com header.a=rsa-sha256 header.s=google\n header.b=Mm156hQv","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 948euQXu7eIaNqmis38bN23LpuzBmdRFZr5NIDXZIqs=; b=PdRklWovjkXShzBs\n VOaD4SjDkuloNivprKDfWgVge4MrbS2AofHh+r6mgqWMZucs2n+Dmo2fLgR55Zmo\n M6r4Cv5ajsPlOx/H54RluoQofBYQ2TUsjWS371690n/N3lyikbljNIbFIAi6IrrZ\n 1572DDLf7KjT22J0YY6fiHudVJuff1p9uXDQb35raaJh6LA80dG/Y7wrk+D+hgRJ\n k6ByezBk/pXPq7TgUWiJ/zokyjLX9J874w+OX3PrWJIo0d4NEv3zfwlxm3w8Vkvy\n b0at2cKjwH3MQDTx2ddWfb+Kx3FFw/tDHbJOC/0JXhdLXjgNPgMtjyr/8Jpxwqrf\n Tjn3GA==","v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=oss.qualcomm.com; s=google; t=1778072733; x=1778677533; 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=948euQXu7eIaNqmis38bN23LpuzBmdRFZr5NIDXZIqs=;\n b=Mm156hQv8Fxjt6lux+51liyBT1Y/Y6v+e/PsQjLoumgPk+QXLxDSTsvFwawSBsAcm0\n PE9ik3wrDh/Biqt704mZMQB6gmP28wg3dRqsvpqEFtDBgk/0SZW2aGJ72p2iaPbLMMyx\n 5lAIiIzhCFQbgvJR9R1rAqU6cx//LZhicEn5Gd1GGBM4qhqzkASfpMIvAa1QOcG+M9U1\n OVw4wz+aNk5iVy2KSqo4AP3+J6KnDS48PfEsVCEJpBIHvN7f01uLwveGhHe8b0ciqEnN\n N8zdzrUEt6rBQnheUP/UyD+oWkDwUEM2RuX/blpa0OY0cS8HO23QOu0MlXyhHnrNzR1M\n dgCw=="],"X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1778072733; x=1778677533;\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=948euQXu7eIaNqmis38bN23LpuzBmdRFZr5NIDXZIqs=;\n b=WhfxMe+R5f09jiKREmEQrsmHf2jlQ0jurFLToaNW/XMNp3R1kPxTjbdD9kk1NRHT8+\n WgGC+GAnBHcWu+QR8BxJz/qBLGSOcrF4CMIQLfWtx0sH33lERWBj3y+vV1MHXIqdVAGZ\n C5pN0rQdjbuwtV5b65g2v/5YVz9whVIvjlsjztSBWWu8+qrO3No5MqDAwDqWmPA08+T/\n LaSM7nvSeGirQhdaV6W+Jr2U24qH005+DU0FdhTdiImvAMwHJXOXxA/pYSQU3tWKewzG\n kq/7mNBpXodxFMVaq8GZMRj0XpSCstHV1wflfqx7nPShscT3j9xtfRQ0La0a68lRAwQB\n 4y/w==","X-Forwarded-Encrypted":"i=1;\n AFNElJ8EHyly7SbQQ/66mb1bSZHBMxwaVUkAMR9eVrj8DwgPRh+yCKBKt+xCkaGErNUtVqP9l7w16BxUPvkkXQ==@gcc.gnu.org","X-Gm-Message-State":"AOJu0YwD/SHrqF/WDOdePaG+FxRl9GArlDWCXHaqGl5cmPH3U+RtLBNq\n 6CFLDzfzFrqBMM8B2txcr2sUSfl/njFfBJ/j9gWL/D+TqNO93ILTdksJEf1AivSWwxRuwXgTmTn\n CTY3JyOg7tWMRmFfD1tAMoW6nVTvmjOz//WQLQ/WyuflZUMD6yHiIjIYNlbOt","X-Gm-Gg":"AeBDieuPhQ8lRPPwJjYUVYcEQq5ur2KM8I9lFIwyOAIC0pjTkT0KSaj+9nFE0LxlVcw\n 28ip90GrhR4TJK8c23H/46jNdgSbfpRYWqyQAa1BWLU+I4kSjpOPt90ibt+glfMAwEw68b5aqYU\n vh+ZmdJ+JHNAD1tPrGkAx8SnGbeNiu2G2u4pd7fAjrQBV1kWx+6Daz7+9j/NtSLwnrNmTe7Ldri\n g5C7DRYSU7gYokrTKtCdXKODJs4ByAPkMCrVCbmAqzwxrGRI1Zi8RprhWnEyoYAgEd6BdKUmx32\n mvT0wjKgDGzSEyZXi3ee44KZi0YPpdmIG1k0Gel97W+8q383h2fLeN27gnu/cmcjDu6MCbx1d2w\n 6vsvOCdI8HuyzDDbJtn34iCsp9IU3sUPO2kRTt9PyYhROsohjn4vf1bBgWkwk","X-Received":["by 2002:a05:7300:7c17:b0:2de:2f38:a7cb with SMTP id\n 5a478bee46e88-2f54f94487emr1593313eec.18.1778072732755;\n Wed, 06 May 2026 06:05:32 -0700 (PDT)","by 2002:a05:7300:7c17:b0:2de:2f38:a7cb with SMTP id\n 5a478bee46e88-2f54f94487emr1593297eec.18.1778072732151;\n Wed, 06 May 2026 06:05:32 -0700 (PDT)"],"Message-ID":"","Date":"Wed, 6 May 2026 07:05:30 -0600","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Subject":"Re: [PATCH v4] RISC-V: Apply LMUL cost scaling to vector operations","To":"Robin Dapp ,\n Zhongyao Chen , gcc-patches@gcc.gnu.org","Cc":"jeffreyalaw@gmail.com, chen.zhongyao@zte.com.cn","References":"<20260506015828.3510-1-chen.zhongyao@zte.com.cn>\n ","Content-Language":"en-US","From":"Jeffrey Law ","In-Reply-To":"","Content-Type":"text/plain; charset=UTF-8; format=flowed","Content-Transfer-Encoding":"8bit","X-Authority-Analysis":"v=2.4 cv=W4sIkxWk c=1 sm=1 tr=0 ts=69fb3c9d cx=c_pps\n a=PfFC4Oe2JQzmKTvty2cRDw==:117 a=asGLMfRmzhnGNxaIYohjRg==:17\n a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22\n a=S0oiKs8tG6wubBL80mkA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10\n a=6Ab_bkdmUrQuMsNx7PHu:22","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNTA2MDEyOCBTYWx0ZWRfX/qn6lla0jrWx\n 1kQXLdvu8grYLw95juAP+D4agZX1VcgEpQ9SRFTpQojtzRGh+Zxnea4jYJQKHNGik8VumRntqLW\n A46WYXtWNm38efQ+Vi644QobY0Y/tCaTokTu/55Lrri4RlhceGzlLUs36WudOVQ3WE40iPlG7+F\n RaV8e8DfvhZKPtjROz1KFH9/xnxzk9E5kDWlgyeBwPKDfUqVVEvnAbmT6J0smMKM0007ZvG+QWA\n P1lhV4X8nbHAsbH3UM3Xwg59PRI6W34JNTgI8gvR79d5ve4kGGDJYoliZG4dgT9LeNAw8zJvFBa\n Nl+QXJZZYUbuKDko6SftHqdO3fFAz8sxGMHluF/0f+6kBAwxAb2DDPqSrkQusdQVkl/X4Vwl8FA\n 7vh+yM7M+AOstH9V3OrGy0GROM8faxRXaq3D6cKYRU66c7evxA6e8/apudekRgyLUYHix4bVmFK\n Vuf2iUbrBXE1ClTCPSQ==","X-Proofpoint-ORIG-GUID":"sEueDXA4FOO2WpKjAKsQBfJ-XjW0zsPM","X-Proofpoint-GUID":"sEueDXA4FOO2WpKjAKsQBfJ-XjW0zsPM","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=2026-05-05_03,2026-05-06_01,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n bulkscore=0 adultscore=0 malwarescore=0 impostorscore=0 lowpriorityscore=0\n clxscore=1015 priorityscore=1501 suspectscore=0 phishscore=0 spamscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605060128","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"}}]