[Bug rtl-optimization/90007] [9 Regression] ICE in extract_constrain_insn_cached, at recog.c:2223

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90007

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
It is not a matter of efficiency, but primarily that RA can't do anything in
many cases after propagating hard registers into instructions.  This PR is just
one of the many cases.