https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122512
--- Comment #1 from anlauf at gcc dot gnu.org ---
It seems not restricted to gfortran, but also gcc:
% gcc-trunk -fdump-ipa-fnsummary-details gcc/testsuite/gcc.dg/ipa/fnsummary-1.c
during IPA pass: fnsummary
gcc/testsuite/gcc.dg/ipa/fnsummary-1.c:7:1: internal compiler error:
Segmentation fault
7 | }
| ^
0x37da745 internal_error(char const*, ...)
../../gcc-trunk/gcc/diagnostic-global-context.cc:787
0x1a05330 crash_signal
../../gcc-trunk/gcc/toplev.cc:323
0x12610f6 symtab_node::dump_base(_IO_FILE*)
../../gcc-trunk/gcc/symtab.cc:907
0x12773ee cgraph_node::dump(_IO_FILE*)
../../gcc-trunk/gcc/cgraph.cc:2497
0x1261bf5 symtab_node::dump(_IO_FILE*)
../../gcc-trunk/gcc/symtab.cc:1027
0x1261cb6 symbol_table::dump(_IO_FILE*)
../../gcc-trunk/gcc/symtab.cc:1045
0x186d047 execute_todo
../../gcc-trunk/gcc/passes.cc:2169
