[Bug debug/65549] [4.9/5/6 Regression] crash in htab_hash_string with -flto -g

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65549

--- Comment #24 from Richard Biener <rguenth at gcc dot gnu.org> ---
Which means that -gstrict-dwarf should be a workaround for this and the dups.