[Bug middle-end/122757] [16 Regression] Copy prop for aggregates into calls makes worse code for constants in some cases

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122757

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Maybe precompute_register_parameters should handle the case where tree_value is
in a DECL_IN_CONSTANT_POOL and args[i].reg is PARALLEL.