[Bug fortran/108168] ICE in a simple module that almost any change eliminates

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108168

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-12-19
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |WAITING
      Known to work|                            |10.4.0, 11.3.0, 12.1.0
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |11.1.0, 11.2.0

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I can't reproduce on the top of the GCC 11 branch, can you please try updating
the compiler to 11.3.0 at least?

For me it reproduces with GCC 11.1 and 11.2 but not with 11.3 which means it
appears fixed.  Proper backtrace:

f951: internal compiler error: Segmentation fault
0xc27c3f crash_signal
        /space/rguenther/src/gcc-11-branch/gcc/toplev.c:327
0x745c60 gfc_sym_get_dummy_args(gfc_symbol*)
        /space/rguenther/src/gcc-11-branch/gcc/fortran/symbol.c:5256
0x7e25f9 doloop_contained_procedure_code
        /space/rguenther/src/gcc-11-branch/gcc/fortran/frontend-passes.c:2483
0x7e96e9 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
        /space/rguenther/src/gcc-11-branch/gcc/fortran/frontend-passes.c:5333
0x7eb0b8 doloop_code
        /space/rguenther/src/gcc-11-branch/gcc/fortran/frontend-passes.c:2627
0x7e96e9 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
        /space/rguenther/src/gcc-11-branch/gcc/fortran/frontend-passes.c:5333
0x7e97fe gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
        /space/rguenther/src/gcc-11-branch/gcc/fortran/frontend-passes.c:5657
0x7ea92b doloop_warn
        /space/rguenther/src/gcc-11-branch/gcc/fortran/frontend-passes.c:3059
0x7eae1a gfc_run_passes(gfc_namespace*)
        /space/rguenther/src/gcc-11-branch/gcc/fortran/frontend-passes.c:156
0x70e567 gfc_resolve(gfc_namespace*)
        /space/rguenther/src/gcc-11-branch/gcc/fortran/resolve.c:17445
0x70e567 gfc_resolve(gfc_namespace*)
        /space/rguenther/src/gcc-11-branch/gcc/fortran/resolve.c:17418
0x70ea29 update_current_proc_array_outer_dependency
        /space/rguenther/src/gcc-11-branch/gcc/fortran/resolve.c:3123
0x719a27 resolve_call
        /space/rguenther/src/gcc-11-branch/gcc/fortran/resolve.c:3750