gm107/ir: add LIMM form of mad

v2: renamed commit
    reordered modifiers
    add assert(dst == src2)
v3: reordered modifiers again
v5: no rounding bit for limms

Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
2 files changed