[Bug rtl-optimization/18395] [meta-bug] combine needs to be templatized like a peepholer

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18395

--- Comment #4 from Eric Gallager <egallager at gcc dot gnu.org> ---
Does the new combine2 pass proposed for GCC 10 address any of these issues?