[Bug ada/83091] ICE with -g in arm-eabi compilation

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83091

--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Created attachment 42677
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42677&action=edit
Tentative fix

Please give it a try on arm-eabi.