[Bug target/54089] [SH] Refactor shift patterns

[bugdal at aerifal dot cx]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54089

--- Comment #39 from Rich Felker <bugdal at aerifal dot cx> ---
Oleg, do you have rights under your copyright assignment agreement to
dual-license the libgcc part of the patch under GPLv2 so it could be included
in the kernel, and if so, would you be willing to do so? I agree it would be
cleaner for the kernel not to duplicate libgcc code, but getting in a simple
patch to update the code that's there would be a lot easier than the
build-architectural change of using libgcc itself in the kernel, which is an
issue I'd really rather not fight with the kernel developers on if they
disagree. :-)