[Bug target/67391] [SH] Convert clrt addc to normal add insn

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67391

--- Comment #19 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #16)
> Then, there's is messy thing with 3 addsi3 patterns ... the order is very
> important.  They must be in exactly this order, or else we don't get the
> code size improvement without LRA and with LRA it will ICE/segfault...

I'm just afraid that the same will have to be done for all insns if PR 65317 is
fixed in this way...