[Rapp-dev] New 128-bit SIMD vector backend: VADMX2

[Hans-Peter Nilsson]

Commits 7392d02d7c3e5c with some later touch-ups.  This is yet
another MIPS COP2 vector implementation, seen in Axis ARTPEC-5
chips, used through bare gcc intrinsics (i.e. no header
wrapping).  For some reason very well-tuned to RAPP. ;-)

Sorry, no publicly available documentation, but the SIMD
semantics should be obvious from the simulator files in a
"comptools-mips" compiler source package, if anyone's
interested.

brgds, H-P