[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: unassig...@gcc.gnu.org

        ReportedBy: zso...@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