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{ "id": 2217507, "url": "http://patchwork.ozlabs.org/api/covers/2217507/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/cover/20260329231754.2325557-1-vineet.gupta@linux.dev/", "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": "<20260329231754.2325557-1-vineet.gupta@linux.dev>", "list_archive_url": null, "date": "2026-03-29T23:17:51", "name": "[0/3] bpf: Enable wN reg codegen for bug-fix and fun", "submitter": { "id": 82303, "url": "http://patchwork.ozlabs.org/api/people/82303/?format=api", "name": "Vineet Gupta", "email": "vineet.gupta@linux.dev" }, "mbox": "http://patchwork.ozlabs.org/project/gcc/cover/20260329231754.2325557-1-vineet.gupta@linux.dev/mbox/", "series": [ { "id": 497942, "url": "http://patchwork.ozlabs.org/api/series/497942/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=497942", "date": "2026-03-29T23:17:51", "name": "bpf: Enable wN reg codegen for bug-fix and fun", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497942/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2217507/comments/", "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=linux.dev header.i=@linux.dev header.a=rsa-sha256\n header.s=key1 header.b=k3+3jPTg;\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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Sun, 29 Mar 2026 23:20:06 +0000 (GMT)", "from out-188.mta1.migadu.com (out-188.mta1.migadu.com\n [95.215.58.188])\n by sourceware.org (Postfix) with ESMTPS id CB3AD4BA23CB\n for <gcc-patches@gcc.gnu.org>; Sun, 29 Mar 2026 23:18:14 +0000 (GMT)" ], "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 sourceware.org C819D4BA23E5", "OpenDKIM Filter v2.11.0 sourceware.org CB3AD4BA23CB" ], "DMARC-Filter": "OpenDMARC Filter v1.4.2 sourceware.org CB3AD4BA23CB", "ARC-Filter": "OpenARC Filter v1.0.0 sourceware.org CB3AD4BA23CB", "ARC-Seal": "i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1774826307; cv=none;\n b=cx5A1KFj3JTFzP5yNbkHhCzHxKTUK7BxloSIdUiCNkRdXDzPhXqcOQldaLQ+cpdjaMNLfxkQ+a8W/se21xI42BYp5JMZKPmoHUuiGNsPQj0CcHhzNKG0lMNSe+OuvsJGIN75hgcQaCLDsohLgXKgh5aWMKjAVv3bwUJeF93VN8w=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1774826307; c=relaxed/simple;\n bh=u4pCL56kA4/pFUHeujBmlwmmxvEeX107TfeZ4hSR7b8=;\n h=DKIM-Signature:From:To:Subject:Date:Message-ID:MIME-Version;\n b=huQpYopZ+pxFFi2cyNuu+XX/AIuaecKrAfC/I0fc30DYFHm+e+kmJn3o0ehPpActzZqpC7VGF+oEtH5E0F++RQT2Z84IS2IrsZG/LomgQ7LDLe1q8GFly4r2B1lGCarq3uaAJJxVkHAeou8ZQSjlZ8vfMxWH7B5GMjKXmS99YIQ=", "ARC-Authentication-Results": "i=1; server2.sourceware.org", "X-Report-Abuse": "Please report any abuse attempt to abuse@migadu.com and\n include these headers.", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1;\n t=1774826292;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding;\n bh=aYJDFHsit8Jdf1Cl9T5T4hYz7yLjEBppyGpSUVK0Nus=;\n b=k3+3jPTg8pfW/gdP4xepB9Fo9tXzvo8R784d2u340NiMIkqHGKMYjjB0YQTvP39NiGttHb\n zJNuKoiuQe3p8r0GT3F+ddaephl6J2oi0j6IGBuclQIG47FBRywYOiZ0PFf6X2nuRq4pMC\n zXRySlhd7EbeuzpQQZ7bB385X7zsy7k=", "From": "Vineet Gupta <vineet.gupta@linux.dev>", "To": "bpf@gcc.gnu.org", "Cc": "gcc-patches@gcc.gnu.org, jose.marchesi@oracle.com, ast@kernel.org,\n Eduard Zingerman <eddyz87@gmail.com>,\n Yonghong Song <yonghong.song@linux.dev>,\n Vineet Gupta <vineet.gupta@linux.dev>", "Subject": "[PATCH 0/3] bpf: Enable wN reg codegen for bug-fix and fun", "Date": "Sun, 29 Mar 2026 16:17:51 -0700", "Message-ID": "<20260329231754.2325557-1-vineet.gupta@linux.dev>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Migadu-Flow": "FLOW_OUT", "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": "Hi,\n\nThe function ABI change seems to be stable but is exposing existing\nbackend issues pertinent to wN regs. Hence this series to first address\nthose and then pursue ABI fixes.\n\n - Patch 1/3 is desirable, 2/3 is a bug fix and both can go in now.\n - Patch 3/3 needs more work but posting anyways due to same area.\n\nPlease take a look.\n\nThx,\n-Vineet\n\nVineet Gupta (3):\n bpf: md: Enable zero_extend{hi,qi}di2 to generate wN regs ...\n bpf: md: fix \"*movsi\" to generate wN regs [PR124688]\n bpf: PROMOTE_MODE to SI not DI [PR124419] [not-for-merge]\n\n gcc/config/bpf/bpf.h | 7 +++----\n gcc/config/bpf/bpf.md | 18 +++++++++---------\n gcc/testsuite/gcc.target/bpf/btfext-lineinfo.c | 8 ++++----\n gcc/testsuite/gcc.target/bpf/ret-reuse-arg-1.c | 14 ++++++++++++++\n gcc/testsuite/gcc.target/bpf/zero-ext.c | 16 ++++++++++++++++\n 5 files changed, 46 insertions(+), 17 deletions(-)\n create mode 100644 gcc/testsuite/gcc.target/bpf/ret-reuse-arg-1.c" }