From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 4692F3858C60; Tue, 31 Oct 2023 17:31:02 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4692F3858C60 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1698773462; bh=cj0VtuwjOVu1zOin5/ryYeSl0rodpJMq20dbyjdEcN8=; h=From:To:Subject:Date:From; b=rK0oxChxzzP7//fbUqx9ROAaQXswFGD7jPPov5zr9L2Inrwzd9UDQn/juTJq9dCEf rp9CeG3MwO95c90+GV9wm+k9GbkmMmpMfq03qd2/c6EYi1ilJCCxmM7ohqr0BkQ9hb kyiFFs6s+vz+B0l4QaQAC4JCtB2n8+pe1s+ZjV4s= From: "dcb314 at hotmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/112320] New: crash from insert_debug_temp_for_var_def Date: Tue, 31 Oct 2023 17:31:01 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: dcb314 at hotmail dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112320 Bug ID: 112320 Summary: crash from insert_debug_temp_for_var_def Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- This C code: unsigned void0_effective_addr2; void0_i, void0_m, void0_p2; void0() { void0_m =3D 800 - (void0_effective_addr2 & 5); int b1; void0_i =3D 0; for (; void0_i < void0_m; void0_i++) b1++; void0_p2 =3D b1++; } when compiled by recent gcc trunk, does this: $ ~/gcc/results/bin/gcc -c -w -g -O1 bug972.c during GIMPLE pass: dse bug972.c: In function =E2=80=98void0=E2=80=99: bug972.c:3:1: internal compiler error: Segmentation fault 3 | void0() { | ^~~~~ 0xebbce9 crash_signal(int) ../../trunk.year/gcc/toplev.cc:315 0xaa2308 gsi_for_stmt(gimple*) ../../trunk.year/gcc/gimple-iterator.cc:0 0x11364ea insert_debug_temp_for_var_def(gimple_stmt_iterator*, tree_node*) ../../trunk.year/gcc/tree-ssa.cc:471 The bug first seems to occur sometime between g:8c40b72036c967fb and g:9119b008b4195e06, which is 35 commits.=