MIPS-3D and DMX are allegedly common, but not in any device I own (although I'd like to consider them in my work all the same).

Popular MIPS devices are:

Android

Ingenic XBurst is in many existing Android devices, and has its own SIMD unit.

MIPS64 chips should be appearing in Android devices soon (which should support MIPS-3D)

Google has a toolchain build script

Sony PSP

Has a custom (and AWESOME!) SIMD unit

Toolchain with vendor extensions is(/was) easy to build: https://github.com/pspdev/psptoolchain

Sony PS2 is a very interesting research device, but it's old and irrelevant now

The toolchain is quite hard to build :( (https://github.com/ps2dev/ps2toolchain)

While I'm digging up the console build scripts, there are some other well maintained scripts:

Sony PS3 - https://github.com/ps3dev/ps3toolchain

Builds PPE (PPC arch) and SPU (dedicated super-fast SIMD coprocessor, best simd unit on earth!) toolchains

Nintendo WiiU, Wii, Gamecube - https://github.com/Vithon/devkitppcsh

PPC system, but with paired single unit instead of standard VMX

On 4 March 2013 20:54, Johannes Pfau <nospam@example.com> wrote:

Am Mon, 4 Mar 2013 10:41:08 +1000
schrieb Manu <turkeyman@gmail.com>:

> ...it occurs to me that MIPS doesn't really have a single
> standardised SIMD instruction set.
>
> There are a few extensions. I've worked on 3 popular MIPS devices;
> they all have SIMD, but they are all different.
> I'm not sure they are available as options in the standard GCC MIPS
> arch. I think they are added via vendor patches.
>
> So don't sorry about MIPS I guess, it sounds like too much effort!
> I'll hassle the vendors some time in the future...
>

Is MIPS ASE what you need? Standard gcc supports:

MIPS DSP ASE rev1
MIPS DSP ASE rev2
MIPS SmartMIPS ASE
MIPS Digital Media Extension
MIPS-3D ASE
(optional paired-single floating-point instructions)
http://gcc.gnu.org/onlinedocs/gcc-4.7.2/gcc/MIPS-Options.html

If you have vendor patches for gcc-4.7 I could integrate those. But we
need either gcc 4.7 or 4.8 patches for gdc, crosstool-NG+gdc actually
only works with 4.7