[Bug libgcc/103510] _Unwind_GetGR crashed for uninitialized registers

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103510

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Funny there is a comment in the libgcc sources:
  /* This will segfault if the register hasn't been saved.  */
Which has been there since day 1 of IA-64 ABI exception handling back in
g:52a11cbfcf0cfb32628b6953588b6af4037ac0b6