[Bug rtl-optimization/123822] [15/16 Regression] ICE: in gen_rtx_SUBREG, at emit-rtl.cc:1032 at -Ofast with _Decimal64 vector since r15-5317

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123822

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 63897
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63897&action=edit
Patch which I am testing