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[8.43.85.97]) by mx.google.com with ESMTPS id g5-20020a170906394500b008d07d7eaeefsi2003625eje.711.2023.03.14.00.30.08 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Mar 2023 00:30:08 -0700 (PDT) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) client-ip=8.43.85.97; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=TNvvoVoV; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id C48B53858C2F for ; Tue, 14 Mar 2023 07:30:03 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C48B53858C2F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1678779003; bh=HaR4RgDuys+PMpg8i5Lrgua6Bkk4I+59XNytzZnKHXY=; h=Date:To:Subject:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=TNvvoVoVggk3ld9qyvky50LqzW6zL97wAaSzBd0zk17q6G9DwIQKcfRQDgh4F7N+b xq+VdeMBGs9XlnU9vvnG/cMRG+hMCG2339wjt/JkyWe+xlNKoKerlvdNvzsgnqWCr6 3W8VO27czbtBoaQF2yQROslsqUYGQRgy/VbQTjV4= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by sourceware.org (Postfix) with ESMTPS id C10153858D32 for ; Tue, 14 Mar 2023 07:29:20 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org C10153858D32 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 484371F88C for ; Tue, 14 Mar 2023 07:29:19 +0000 (UTC) Received: from wotan.suse.de (wotan.suse.de [10.160.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 3BCEB2C141 for ; Tue, 14 Mar 2023 07:29:19 +0000 (UTC) Date: Tue, 14 Mar 2023 07:29:19 +0000 (UTC) To: gcc-patches@gcc.gnu.org Subject: [PATCH] New testcase User-Agent: Alpine 2.22 (LSU 394 2020-01-19) MIME-Version: 1.0 X-Spam-Status: No, score=-10.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, MISSING_MID, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Richard Biener via Gcc-patches From: Richard Biener Reply-To: Richard Biener Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" Message-Id: <20230314073003.C48B53858C2F@sourceware.org> X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1760327377748003495?= X-GMAIL-MSGID: =?utf-8?q?1760327377748003495?= This is a reduced testcase for an issue I ran into when trying to improve PTA compile-time further, there wasn't any C family runfail in the testsuite for this. Pushed. * g++.dg/torture/20230313.C: New testcase. --- gcc/testsuite/g++.dg/torture/20230313.C | 109 ++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 gcc/testsuite/g++.dg/torture/20230313.C diff --git a/gcc/testsuite/g++.dg/torture/20230313.C b/gcc/testsuite/g++.dg/torture/20230313.C new file mode 100644 index 00000000000..d1f348003bd --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/20230313.C @@ -0,0 +1,109 @@ +/* { dg-do run } */ +/* { dg-additional-options "-fno-exceptions -fno-rtti" } */ + +extern "C" void free (void *); +void fancy_abort () { __builtin_abort (); } +struct vec_prefix +{ + unsigned m_alloc : 1; + unsigned m_using_auto_storage : 1; + unsigned m_num; +}; +struct vl_ptr +; +struct va_heap +{ + typedef vl_ptr default_layout; +}; +template +struct vec +; +template +struct vec +{ + T & operator[] (unsigned ix) + { + int *__trans_tmp_2; + !m_vecpfx.m_num ? fancy_abort (), 0 : 0; + __trans_tmp_2 = reinterpret_cast (this + 1); + return __trans_tmp_2[ix]; + } + bool iterate (unsigned , T *ptr) { + *ptr = 0; + return false; + } + void embedded_init (unsigned , unsigned num, unsigned aut) + { + m_vecpfx.m_alloc = + m_vecpfx.m_using_auto_storage = aut; + m_vecpfx.m_num = num; + } + void quick_grow (unsigned len) + { + !m_vecpfx.m_alloc ? fancy_abort (), 0 : m_vecpfx.m_num = len; + } + vec_prefix m_vecpfx; +}; +template +struct auto_vec : vec +{ + auto_vec () + { + m_auto.embedded_init (N, 0, 1); + long off = (char *) &m_auto - (char *) this; + this->m_vec = (vec *) ((char *) this + off); + } + ~auto_vec () + { + this->release (); + } + vec m_auto; + char m_data; +}; +template +struct vec +{ +void +release () +{ + bool __trans_tmp_1 = m_vec ? m_vec->m_vecpfx.m_using_auto_storage : false; + if (__trans_tmp_1) + return; + vec *&v = m_vec; + free (m_vec); + v = nullptr; +} +T &operator[] (unsigned ix) { return (*m_vec)[ix]; } +bool +iterate (unsigned ix, T *ptr) { + m_vec->iterate (ix, ptr); + return false; +} +void +quick_grow (unsigned len) +{ + m_vec->quick_grow (len); +} + vec *m_vec; +}; +void test_auto_alias () +{ + volatile int i = 1; + auto_vec v; + v.quick_grow (2); + v[0] = 1; + v[1] = 2; + int val; + for (int ix = i; v.iterate (ix, &val); ix++) + if (val != 2) + __builtin_abort (); + if (val != 0) + __builtin_abort (); +} +int main() +{ + test_auto_alias (); + return 0; +}