https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123949
--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
gfortran from 20250901 (g:d21f10259f64723f) seems to also crash,
but at a different place:
fujitsu $ ~/gcc/results.20250901/bin/gfortran -c -w
trunk/Fortran/0413/0413_0003.f90
trunk/Fortran/0413/0413_0003.f90:12:22:
12 | allocate (x8(n):: v2)
| 1
internal compiler error: Segmentation fault
0x220a07d internal_error(char const*, ...)
../../trunk/gcc/diagnostic-global-context.cc:786
0xe667af crash_signal
../../trunk/gcc/toplev.cc:323
0x7b119a gfc_get_symbol_decl(gfc_symbol*)
../../trunk/gcc/fortran/trans-decl.cc:1652
so the fault was introduced before this point, but after
gcc 15.2.0, dated 20250808, was released.