[PATCH] Improve and consolidate sparc PIC assembler.

[David Miller]

From: Torbjorn Granlund <tg at gmplib.org>
Date: Wed, 17 Apr 2013 00:00:37 +0200

> But if a real feature/bug test is too hard, or hard to make reliable,
> version detection is what we have to do.

My plan is to shoot for a full functionality+bug test, and if
that's too hard then if the assembler accepts the expressions
then I do a version check of some kind.