[Bug middle-end/122757] [16 Regression] Copy prop for aggregates into calls makes worse code for constants in some cases (12 bytes)

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

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

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So somethings are an improvement while others are regressions.

E.g. 3 half float (without fp16) is an improvement and basically what is done
by llvm. But worse with fp16 extensions enabled.