[Bug rtl-optimization/87871] [9 Regression] testcases fail after r265398 on arm

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87871

--- Comment #43 from Peter Bergner <bergner at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #40)
> The question is what the code size differences would be with those changes
> (i.e. how often does it help not to have *movsi_compare0 make RA decisions
> worse vs. how often we actually have those two instructions separated by
> other insns).

How does *movsi_compare0 make RA decisions worse other than the issue of p116
not being assigned r0 above, which my patch attached above fixes?