RE: [PATCH v2] Revert "target/mips: Deprecate nanoMIPS ISA"

[Vince Del Vecchio]

On Thursday, April 8, 2021 2:17 PM, Richard Henderson wrote:

> NACK, for the reasons stated against v1:
> https://lists.gnu.org/archive/html/qemu-devel/2021-04/msg00663.html

On Tuesday, April 6, 2021 11:21 AM, Richard Henderson wrote:

> I think we should retain the deprecation until you actually follow through 
> with any of the upstreaming.
> 
> You didn't even bother to commit your changes to a code repository -- merely 
> uploaded tarballs.  There have been no posts to the > gcc mailing lists about 
> nanomips.
> 
> A mere code dump is not active development.

Maybe not, but we are in fact actively developing.  :-)

You’re right we haven’t published the source repos on github yet.  It's been on 
our list.  Maybe not today/tomorrow, but it'll definitely be done by next week.

The nanoMIPS toolchain we inherited is based on gcc 6.3.  We’ve been working on 
upgrading to gcc trunk since late February, but it's not a trivial task.  As 
soon as we're done (hopefully before the summer), we'll propose the changes to 
the gcc mailing list.

For now, we don't have many topics for the gcc lists, although 
https://gcc.gnu.org/pipermail/gcc/2021-March/235082.html is from our work.

We've also started an LLVM port (https://github.com/MediaTek-Labs/llvm-project) 
as I mentioned in my previous message 
(https://lists.gnu.org/archive/html/qemu-devel/2021-03/msg09764.html).

In sum, we're investing in open source nanoMIPS tools because it's an important 
technology for us, and QEMU is one of the key projects we want to have nanoMIPS 
supported in.

-Vince Del Vecchio
Compiler Team Lead & Deputy Director, DSP Core Technology, MediaTek