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

[kkojima at gcc dot gnu.org]

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

--- Comment #25 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #24)
> Could you please re-run that test with attachment 36400 [details]?

Yes, 36400 fixes that failure:
PASS: gcc.c-torture/compile/sync-3.c   -O1   (test for warnings, line )