[Bug tree-optimization/87025] New: [9 Regression] ICE in add_record, at optinfo-emit-json.cc:175

["asolokha at gmx dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87025

            Bug ID: 87025
           Summary: [9 Regression] ICE in add_record, at
                    optinfo-emit-json.cc:175
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---

gcc-9.0.0-alpha20180819 snapshot (r263652) ICEs when compiling the following
snippet w/ -O1 -fsave-optimization-record -ftree-vectorize -fno-tree-scev-cprop
-fno-tree-sink:

void
fk (unsigned int sf)
{
  for (;;)
    {
      if (sf != 0)
        {
          while (sf != 0)
            ++sf;

          while (sf < 8)
            ++sf;
        }

      ++sf;
    }
}

% gcc-9.0.0-alpha20180819 -O1 -fsave-optimization-record -ftree-vectorize
-fno-tree-scev-cprop -fno-tree-sink -c hdtzb5rs.c
during GIMPLE pass: vect
hdtzb5rs.c: In function 'fk':
hdtzb5rs.c:2:1: internal compiler error: in add_record, at
optinfo-emit-json.cc:175
2 | fk (unsigned int sf)
  | ^~
0x64094b optrecord_json_writer::add_record(json::object*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/optinfo-emit-json.cc:175
0xbc42e6 optrecord_json_writer::add_record(optinfo const*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/optinfo-emit-json.cc:156
0x90ba46 dump_context::end_any_optinfo()
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/dumpfile.c:1120
0x90bae0 dump_context::begin_next_optinfo(dump_location_t const&)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/dumpfile.c:1107
0x90dd2e dump_context::begin_scope(char const*, dump_location_t const&)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/dumpfile.c:1070
0xf01591 auto_dump_scope::auto_dump_scope(char const*, dump_location_t)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/dumpfile.h:537
0xf01591 vect_analyze_loop(loop*, _loop_vec_info*, vec_info_shared*)
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/tree-vect-loop.c:2274
0xf1d763 try_vectorize_loop_1
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/tree-vectorizer.c:867
0xf1e591 vectorize_loops()
       
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180819/work/gcc-9-20180819/gcc/tree-vectorizer.c:1075