[Bug driver/81101] New: ICE with -fself-test=.

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81101

            Bug ID: 81101
           Summary: ICE with -fself-test=.
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Keywords: ice-checking
          Severity: normal
          Priority: P3
         Component: driver
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
                CC: dmalcolm at gcc dot gnu.org
  Target Milestone: ---

Should this give a more user-friendly error?

$ /home/jwakely/gcc/latest/bin/gcc -fself-test=. -c -x c  - <<< 'int i;'
/home/jwakely/src/gcc/gcc/gcc/selftest.c:305: test_locate_file: FAIL: unable to
open file: ./example.txt
cc1: internal compiler error: in fail_formatted, at selftest.c:62
0x13dcde6 selftest::fail_formatted(selftest::location const&, char const*, ...)
        /home/jwakely/src/gcc/gcc/gcc/selftest.c:62
0x13dd157 selftest::read_file(selftest::location const&, char const*)
        /home/jwakely/src/gcc/gcc/gcc/selftest.c:164
0x13dd48f test_locate_file
        /home/jwakely/src/gcc/gcc/gcc/selftest.c:305
0x13dd48f selftest::selftest_c_tests()
        /home/jwakely/src/gcc/gcc/gcc/selftest.c:320
0x138a47b selftest::run_tests()
        /home/jwakely/src/gcc/gcc/gcc/selftest-run-tests.c:55
0xbe37e2 toplev::run_self_tests()
        /home/jwakely/src/gcc/gcc/gcc/toplev.c:2075
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