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GET /api/patches/2225510/?format=api
{ "id": 2225510, "url": "http://patchwork.ozlabs.org/api/patches/2225510/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/aecS8FwuBYDduaOJ@tucnak/", "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": "<aecS8FwuBYDduaOJ@tucnak>", "list_archive_url": null, "date": "2026-04-21T06:02:24", "name": "sccvn: Use build_bitint_type in another SCCVN spot [PR124941]", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "35f96e22a822dbaabc0644e20484896500d11a1c", "submitter": { "id": 671, "url": "http://patchwork.ozlabs.org/api/people/671/?format=api", "name": "Jakub Jelinek", "email": "jakub@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/aecS8FwuBYDduaOJ@tucnak/mbox/", "series": [ { "id": 500735, "url": "http://patchwork.ozlabs.org/api/series/500735/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=500735", "date": "2026-04-21T06:02:24", "name": "sccvn: Use build_bitint_type in another SCCVN spot [PR124941]", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500735/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2225510/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2225510/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=PnKh/pks;\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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Tue, 21 Apr 2026 06:02:27 +0000 (UTC)", "from tucnak.zalov.cz (localhost [127.0.0.1])\n by tucnak.zalov.cz (8.18.1/8.18.1) with ESMTPS id 63L62O7g886092\n (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT);\n Tue, 21 Apr 2026 08:02:24 +0200", "(from jakub@localhost)\n by tucnak.zalov.cz (8.18.1/8.18.1/Submit) id 63L62O3x886091;\n Tue, 21 Apr 2026 08:02:24 +0200" ], "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 sourceware.org E1C114BA2E3F", "OpenDKIM Filter v2.11.0 sourceware.org 62B004BA2E25" ], "DMARC-Filter": "OpenDMARC Filter v1.4.2 sourceware.org 62B004BA2E25", "ARC-Filter": "OpenARC Filter v1.0.0 sourceware.org 62B004BA2E25", "ARC-Seal": "i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1776751351; cv=none;\n b=rXgXtYu4c7Ee5VslA+Snm+QqyrPVBbcgMFMYVdvly1RieCeaPG+ASLEryyovJIzXeNxkpZFR2NlJS+uN8L4V4nJytMbWtuk+3UULlrqhB8GU69i9VISpEfYkLsRzSYU2ldwZ40TscfxkQRPl314L1y4FYDDJxcaJd2ijOdnzi/4=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776751351; c=relaxed/simple;\n bh=q97uC+gnIjLfZruwTyySa1M3kTEhROpAWJUmVXAcUmA=;\n h=DKIM-Signature:Date:From:To:Subject:Message-ID:MIME-Version;\n b=dnymc70/8ANIP+rUg4t0lQKv3L79AZo4wDaA7M0elVY/bL6VmTlW4egfeSSEe6cXXjbPvqxbiLErBbqM7mqGEJJ8hZGDG05ys/kpLbvynV1SOKZFbULxpxAE9PleQn3+xLNGMyYFTq3TdWe3scAhN/kZ7IfpvCmGpaisfGy2EG4=", "ARC-Authentication-Results": "i=1; server2.sourceware.org", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1776751350;\n h=from:from:reply-to:reply-to:subject:subject:date:date:\n message-id:message-id:to:to:cc:cc:mime-version:mime-version:\n content-type:content-type; bh=RVx+z+TzYylz4ezjzhGIazolCgu+u0q+i/SaorjSohY=;\n b=PnKh/pksZ84+HCkQGsCnH3xi+vW80oRoQoV9lxZ94nXyppBFaSF7GeNV8RS9qXRQ1BSrQZ\n lScz44LFaar3VeR+fiOa4m22Z40ZEIuCniDiXdqBqxfpDQ2LStafl4ktyN909MxIptotSo\n WT1tczdB594MhjjYS9DbEkomjaau2Tg=", "X-MC-Unique": "MBDNjWzYPaKVyEneBCb3mA-1", "X-Mimecast-MFC-AGG-ID": "MBDNjWzYPaKVyEneBCb3mA_1776751348", "Date": "Tue, 21 Apr 2026 08:02:24 +0200", "From": "Jakub Jelinek <jakub@redhat.com>", "To": "Richard Biener <rguenther@suse.de>,\n Andrew Pinski <andrew.pinski@oss.qualcomm.com>", "Cc": "gcc-patches@gcc.gnu.org", "Subject": "[PATCH] sccvn: Use build_bitint_type in another SCCVN spot [PR124941]", "Message-ID": "<aecS8FwuBYDduaOJ@tucnak>", "MIME-Version": "1.0", "X-Scanned-By": "MIMEDefang 3.4.1 on 10.30.177.93", "X-Mimecast-Spam-Score": "0", "X-Mimecast-MFC-PROC-ID": "NM0p828yPbjP-Lx5hFQr0bKDKCJL42ERzp3qbwTalMo_1776751348", "X-Mimecast-Originator": "redhat.com", "Content-Type": "text/plain; charset=us-ascii", "Content-Disposition": "inline", "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>", "Reply-To": "Jakub Jelinek <jakub@redhat.com>", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "Hi!\n\nThe following testcase ICEs on riscv.\ntree-ssa-sccvn.cc (vn_walk_cb_data::push_partial_def) already uses\nbuild_bitint_type instead of build_nonstandard_integer_type for larger\nBITINT_TYPE types:\n /* Make sure to interpret in a type that has a range covering the whole\n access size. */\n if (INTEGRAL_TYPE_P (vr->type) && maxsizei != TYPE_PRECISION (vr->type))\n {\n if (TREE_CODE (vr->type) == BITINT_TYPE\n && maxsizei > MAX_FIXED_MODE_SIZE)\n type = build_bitint_type (maxsizei, TYPE_UNSIGNED (type));\n else\n type = build_nonstandard_integer_type (maxsizei, TYPE_UNSIGNED (type));\n }\nand the same change in vn_reference_lookup_3 fixes the ICE.\n\nBootstrapped/regtested on x86_64-linux and i686-linux and x86_64-linux ->\nriscv64-linux cross compiler tested on the testcase, ok for trunk?\n\n2026-04-21 Jakub Jelinek <jakub@redhat.com>\n\n\tPR tree-optimization/124941\n\t* tree-ssa-sccvn.cc (vn_reference_lookup_3): Use build_bitint_type\n\trather than build_nonstandard_integer_type for\n\tmaxsizei larger than MAX_FIXED_MODE_SIZE.\n\n\t* gcc.dg/bitint-129.c: New test.\n\n\n\tJakub", "diff": "--- gcc/tree-ssa-sccvn.cc.jj\t2026-03-27 10:17:21.501210523 +0100\n+++ gcc/tree-ssa-sccvn.cc\t2026-04-20 12:40:15.175842096 +0200\n@@ -3284,8 +3284,14 @@ vn_reference_lookup_3 (ao_ref *ref, tree\n \t\t covering the whole access size. */\n \t\t if (INTEGRAL_TYPE_P (vr->type)\n \t\t && maxsizei != TYPE_PRECISION (vr->type))\n-\t\t type = build_nonstandard_integer_type (maxsizei,\n-\t\t\t\t\t\t\t TYPE_UNSIGNED (type));\n+\t\t {\n+\t\t bool uns = TYPE_UNSIGNED (type);\n+\t\t if (TREE_CODE (vr->type) == BITINT_TYPE\n+\t\t\t && maxsizei > MAX_FIXED_MODE_SIZE)\n+\t\t\ttype = build_bitint_type (maxsizei, uns);\n+\t\t else\n+\t\t\ttype = build_nonstandard_integer_type (maxsizei, uns);\n+\t\t }\n \t\t if (BYTES_BIG_ENDIAN)\n \t\t {\n \t\t /* For big-endian native_encode_expr stored the rhs\n--- gcc/testsuite/gcc.dg/bitint-129.c.jj\t2026-04-20 12:43:29.585546318 +0200\n+++ gcc/testsuite/gcc.dg/bitint-129.c\t2026-04-20 12:42:46.331279596 +0200\n@@ -0,0 +1,14 @@\n+/* PR tree-optimization/124941 */\n+/* { dg-do compile { target bitint } } */\n+/* { dg-options \"-O2 -fno-strict-aliasing\" } */\n+\n+#if __BITINT_MAXWIDTH__ >= 1024\n+_BitInt(257)\n+foo ()\n+{\n+ _BitInt(1024) b = 0;\n+ return *(_BitInt(257) *)&b;\n+}\n+#else\n+int i;\n+#endif\n", "prefixes": [] }