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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/57097] New: [4.8/4.9 Regression] ICE: in find_hard_regno_for, at lra-assigns.c:561 with -O2 -fPIC -m32
Date: Sun, 28 Apr 2013 06:35:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57097

             Bug #: 57097
           Summary: [4.8/4.9 Regression] ICE: in find_hard_regno_for, at
                    lra-assigns.c:561 with -O2 -fPIC -m32
    Classification: Unclassified
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 29956
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29956
reduced testcase

Compiler output:
$ gcc -O2 -fPIC -m32 testcase.c
testcase.c: In function 'main':
testcase.c:27:1: internal compiler error: in find_hard_regno_for, at
lra-assigns.c:561
 }
 ^
0x8eeb4f find_hard_regno_for
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:561
0x8ef0b1 assign_by_spills
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1198
0x8f1693 lra_assign()
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1427
0x8ece6c lra(_IO_FILE*)
        /mnt/svn/gcc-trunk/gcc/lra.c:2308
0x8a0268 do_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4619
0x8a0268 rest_of_handle_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4731
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> 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-198362-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/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-198362-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20130427 (experimental) (GCC) 

Tested revisions:
r198362 - crash
4.8 r198018 - crash
4.7 r198018 - OK