From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30258 invoked by alias); 23 Dec 2014 18:58:23 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 30239 invoked by uid 48); 23 Dec 2014 18:58:18 -0000 From: "zsojka at seznam dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/64391] New: ICE: SIGSEGV in get_attrs_for (trans-mem.c:179) with -fgnu-tm and #pragma GCC ivdep Date: Tue, 23 Dec 2014 18:58:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: zsojka at seznam dot cz X-Bugzilla-Status: UNCONFIRMED 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 attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-12/txt/msg02658.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64391 Bug ID: 64391 Summary: ICE: SIGSEGV in get_attrs_for (trans-mem.c:179) with -fgnu-tm and #pragma GCC ivdep Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Created attachment 34324 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34324&action=edit reduced testcase Compiler output: $ gcc -fgnu-tm testcase.c -wrapper valgrind,-q ==19617== Invalid read of size 2 ==19617== at 0xC5B0A4: get_attrs_for(tree_node const*) (trans-mem.c:179) ==19617== by 0xC5DE28: is_tm_may_cancel_outer(tree_node*) (trans-mem.c:320) ==19617== by 0xC5E147: diagnose_tm_1(gimple_stmt_iterator*, bool*, walk_stmt_info*) (trans-mem.c:668) ==19617== by 0x9FC9CE: walk_gimple_stmt(gimple_stmt_iterator*, tree_node* (*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*), walk_stmt_info*) (gimple-walk.c:551) ==19617== by 0x9FCC08: walk_gimple_seq_mod(gimple_statement_base**, tree_node* (*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*), walk_stmt_info*) (gimple-walk.c:66) ==19617== by 0x9FCAB2: walk_gimple_stmt(gimple_stmt_iterator*, tree_node* (*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*), walk_stmt_info*) (gimple-walk.c:579) ==19617== by 0x9FCC08: walk_gimple_seq_mod(gimple_statement_base**, tree_node* (*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*), walk_stmt_info*) (gimple-walk.c:66) ==19617== by 0x9FCCA6: walk_gimple_seq(gimple_statement_base*, tree_node* (*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*), walk_stmt_info*) (gimple-walk.c:96) ==19617== by 0xC5DEC2: diagnose_tm_blocks (trans-mem.c:862) ==19617== by 0xC5DEC2: (anonymous namespace)::pass_diagnose_tm_blocks::execute(function*) (trans-mem.c:891) ==19617== by 0xB5E85E: execute_one_pass(opt_pass*) (passes.c:2311) ==19617== by 0xB5ECD5: execute_pass_list_1(opt_pass*) [clone .constprop.73] (passes.c:2363) ==19617== by 0xB5ED28: execute_pass_list(function*, opt_pass*) (passes.c:2374) ==19617== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==19617== testcase.c: In function 'foo': testcase.c:2:1: internal compiler error: Segmentation fault foo (void) ^ Please submit a full bug report, with preprocessed source if appropriate. See for instructions. Tested revisions: r219043 - ICE 4_9 r219040 - ICE 4_8 - ignoring #pragma GCC ivdep