[Bug rtl-optimization/112380] [14 regression] ICE when building Mesa (in combine, internal compiler error: in simplify_subreg) since r14-2526-g8911879415d6c2

[roger at nextmovesoftware dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112380

--- Comment #12 from Roger Sayle <roger at nextmovesoftware dot com> ---
Patch proposed (actually two alternatives proposed) at
https://gcc.gnu.org/pipermail/gcc-patches/2023-November/636203.html