[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 #6 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Kazumoto Kojima from comment #5)
> Yes, this is clearly a 5/6 regression.  My test has passed C and C++ part
> with no new failures.  I'll report back when test completed.

Test completed with no new failures on sh4-unknown-linux-gnu.