[Bug tree-optimization/87848] New: [9 Regression] internal compiler error: in compare_range_with_value, at vr-values.c:1665

[steinar+gcc at gunderson dot no]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87848

            Bug ID: 87848
           Summary: [9 Regression] internal compiler error: in
                    compare_range_with_value, at vr-values.c:1665
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: steinar+gcc at gunderson dot no
  Target Milestone: ---

Created attachment 44942
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44942&action=edit
Reduced test case

gcc version 9.0.0 20181019 (experimental) [trunk revision 265316] (Debian
20181019-1) 

Seemingly there is a regression when compiling protobuf 3.6.1:

during GIMPLE pass: vrp
../extra/protobuf/protobuf-3.6.1/src/google/protobuf/util/internal/datapiece.cc:
In member function 'google::protobuf::util::StatusOr<T>
google::protobuf::util::converter::DataPiece::GenericConvert() const [with To =
double]':
../extra/protobuf/protobuf-3.6.1/src/google/protobuf/util/internal/datapiece.cc:323:14:
internal compiler error: in compare_range_with_value, at vr-values.c:1665
  323 | StatusOr<To> DataPiece::GenericConvert() const {
      |              ^~~~~~~~~
0x7fd9d3a1eb16 __libc_start_main
        ../csu/libc-start.c:310

GCC 8 works. I believe that also a GCC 9 snapshot from a month or two ago
worked.

Adding attachment with a reduced test case. Compile with -O or -O2.