[Bug target/67732] [SH] Strange LRA addsi3 usage

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67732

--- Comment #3 from Oleg Endo <olegendo at gcc dot gnu.org> ---
Hm, those addressing mode issues are supposed to be improved by the AMS pass. 
But it's not ready yet.

Compiling CSiBE with the current AMS branch, without LRA:

sum:  3333879 -> 3318319    -15560 / -0.466724 %

and teem is again the bigger chunk:

total:   1106660 -> 1098296    -8364 / -0.755788 %

It seems that the big improvement there comes from better utilization of
post-inc/pre-dec and index-mode FP loads/stores.

Unfortunately, running AMS + LRA doesn't work, so I can't get any numbers for
that ( https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212#c117 )