[Bug debug/109676] [13/14 regression] ICE in simplify_subreg, at simplify-rtx.cc:7426 when building firefox with -O2 -march=alderlake -g since r13-3378-gf6c168f8c06047

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109676

--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 54963
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54963&action=edit
gcc14-pr109676.patch

Untested fix.