[Bug tree-optimization/55569] New: [4.8 Regression] ICE: in check_probability, at basic-block.h:944 with -ftree-vectorize

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55569

             Bug #: 55569
           Summary: [4.8 Regression] ICE: in check_probability, at
                    basic-block.h:944 with -ftree-vectorize
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 28856
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28856
reduced testcase

Compiler output:
$ gcc -O -ftree-vectorize testcase.C
testcase.C: In function 'void test01()':
testcase.C:13:1: internal compiler error: in check_probability, at
basic-block.h:944
 test01 ()
 ^
0x84ddff check_probability
        /mnt/svn/gcc-trunk/gcc/basic-block.h:944
0x84ddff inverse_probability
        /mnt/svn/gcc-trunk/gcc/basic-block.h:972
0x84ddff scale_loop_profile(loop*, int, int)
        /mnt/svn/gcc-trunk/gcc/cfgloopmanip.c:522
0xd85d4e vect_transform_loop(_loop_vec_info*)
        /mnt/svn/gcc-trunk/gcc/tree-vect-loop.c:5739
0xd9e426 vectorize_loops()
        /mnt/svn/gcc-trunk/gcc/tree-vectorizer.c:124
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-194017-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/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-194017-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.8.0 20121201 (experimental) (GCC) 

Tested revisions:
r194017 - crash