[Bug rtl-optimization/57422] New: [4.9 Regression] ICE: SIGSEGV in dominated_by_p with custom flags

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57422

            Bug ID: 57422
           Summary: [4.9 Regression] ICE: SIGSEGV in dominated_by_p with
                    custom flags
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 30196
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30196&action=edit
reduced testcase

Compiler output:
$ gcc -O2 -fPIC -fno-omit-frame-pointer -fpeel-loops -fsched-pressure
-fschedule-insns -fselective-scheduling2 --param=max-cse-insns=1 testcase.c 
testcase.c: In function 'test6':
testcase.c:20:1: internal compiler error: Segmentation fault
 }
 ^
0xa3896f crash_signal
        /mnt/svn/gcc-trunk/gcc/toplev.c:333
0x704fe6 dominated_by_p(cdi_direction, basic_block_def const*, basic_block_def
const*)
        /mnt/svn/gcc-trunk/gcc/dominance.c:974
0xa01092 remove_insns_that_need_bookkeeping
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:4906
0xa01092 fill_insns
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:5592
0xa01092 schedule_on_fences
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7410
0xa01092 sel_sched_region_2
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7544
0xa05725 sel_sched_region_1
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7583
0xa05725 sel_sched_region(int)
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7684
0xa06ee9 run_selective_scheduling()
        /mnt/svn/gcc-trunk/gcc/sel-sched.c:7760
0x9d82e5 rest_of_handle_sched2
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3606
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-199337-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-199337-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20130526 (experimental) (GCC) 


Tested revisions:
r199337 - crash
4.8 r198018 - OK