From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30312 invoked by alias); 20 Apr 2014 08:59:07 -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 30298 invoked by uid 48); 20 Apr 2014 08:59:04 -0000 From: "zsojka at seznam dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/60903] New: [4.8/4.9/4.10 Regression] ICE: in verify_loop_structure, at cfgloop.c:1647: : edge from 13 to 14 should be marked irreducible Date: Sun, 20 Apr 2014 08:59:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 4.10.0 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: 2014-04/txt/msg01383.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60903 Bug ID: 60903 Summary: [4.8/4.9/4.10 Regression] ICE: in verify_loop_structure, at cfgloop.c:1647: : edge from 13 to 14 should be marked irreducible Product: gcc Version: 4.10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Created attachment 32636 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32636&action=edit reduced testcase Compiler output: $ gcc -Os -fno-tree-copy-prop -ftree-loop-distribute-patterns -fno-tree-scev-cprop --param=allow-store-data-races=0 testcase.c testcase.c: In function 'foo': testcase.c:4:1: error: edge from 13 to 14 should be marked irreducible foo () ^ testcase.c:4:1: error: basic block 14 should be marked irreducible testcase.c:4:1: error: edge from 14 to 12 should be marked irreducible testcase.c:4:1: internal compiler error: in verify_loop_structure, at cfgloop.c:1647 0x762369 verify_loop_structure() /mnt/svn/gcc-trunk/gcc/cfgloop.c:1647 0xbb2c32 execute /mnt/svn/gcc-trunk/gcc/tree-loop-distribution.c:1821 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions. $ gcc -v Using built-in specs. COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-209530-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.10.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df --enable-languages=c,c++,lto,fortran --prefix=/mnt/svn/gcc-trunk/binary-209530-lto-fortran-checking-yes-rtl-df/ --without-cloog --without-ppl Thread model: posix gcc version 4.10.0 20140419 (experimental) (GCC) Tested revisions: r209530 - ICE 4.9 r209346 - ICE 4.8 r209342 - ICE 4.7 r209345 - OK