The arith assembly is big enough, and the details that you have to keep
in mind are complex enough and varied enough, that it is worth using
a Go program to generate the assembly. That way, all the architectures
can use the same algorithms, and porting to new architectures will be
easier.
This is the first of a sequence of CLs to introduce a new mini-compiler
for generating the arith assembly, in math/big/internal/asmgen.
This CL has the basics of the compiler as well as a couple simple
architectures and the generator for addVV/subVV. It does not check
in the generated assembly yet. That will happen in a followup CL after
the other architectures and generators have been added.
Change-Id: Ib704c60fd972fc5690ac04d8fae3712ee2c1a80a
Reviewed-on: https://go-review.googlesource.com/c/go/+/664935
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>