[Bug tree-optimization/63986] [5 Regression][SH] gcc.target/sh/pr51244-15.c failures

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63986

--- Comment #7 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> I think you were mostly lucky

And exactly that's why I'd better not rely on combine dreaming up the parallel
pattern if I want to control the instruction (sequence) selection in a more
reliable way.

I didn't mean to file this PR as tree-optimization, but rather as a target
issue.