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From: "matt at use dot net" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/46077] New: [4.6 regression] ICE in tree vectorization when compiling towns_audio.cpp from scummvm
Date: Mon, 18 Oct 2010 22:18:00 -0000	[thread overview]
Message-ID: <bug-46077-4@http.gcc.gnu.org/bugzilla/> (raw)

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46077

           Summary: [4.6 regression] ICE in tree vectorization when
                    compiling towns_audio.cpp from scummvm
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: matt@use.net


Created attachment 22085
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22085
bzip2 compressed preprocessor output of the source file that reproduced the ICE

When compiling scummvm with Ubuntu 10.10's gcc-snapshot package version of g++
(Ubuntu 20101004-0ubuntu1), there is an ICE that occurs that does not happen
with g++-4.4 (Ubuntu/Linaro 4.4.4-14ubuntu5) or g++-4.5 (Ubuntu/Linaro
4.5.1-7ubuntu2):


matt@matt-desktop:~/src/scummvm$ g++ -x c++ -O3 /tmp/towns_audio.cpp.pre 
sound/softsynth/fmtowns_pc98/towns_audio.cpp: In member function 'int
TownsAudioInterface::intf_pcmPlayEffect(__va_list_tag (&)[1])':
sound/softsynth/fmtowns_pc98/towns_audio.cpp:604:5: internal compiler error: in
vect_update_ivs_after_vectorizer, at tree-vect-loop-manip.c:1779

The pre-processed source file that reproduced the issue is attached.


             reply	other threads:[~2010-10-18 22:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-18 22:18 matt at use dot net [this message]
2010-10-19 10:50 ` [Bug tree-optimization/46077] " rguenth at gcc dot gnu.org
2010-10-19 11:54 ` irar at il dot ibm.com
2010-11-04 13:18 ` rguenth at gcc dot gnu.org
2010-11-04 13:25 ` rguenth at gcc dot gnu.org
2010-11-17 22:13 ` matt at use dot net
2010-11-19  0:10 ` matt at use dot net
2010-11-19  0:20 ` pinskia at gcc dot gnu.org
2010-11-19  6:34 ` hjl.tools at gmail dot com
2010-11-19 21:01 ` matz at gcc dot gnu.org
2010-11-19 21:04 ` matz at gcc dot gnu.org

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