nvc0/ir: treat FMA like MAD for operand propagation
Helps mainly Feral-ported games, due to their use of fma() shader-db changes: total instructions in shared programs : 3901147 -> 3842505 (-1.50%) total gprs used in shared programs : 471258 -> 467359 (-0.83%) total local used in shared programs : 27405 -> 27361 (-0.16%) total bytes used in shared programs : 35749888 -> 35214176 (-1.50%) local gpr inst bytes helped 17 1829 4091 4091 hurt 4 44 3 3 Signed-off-by:Karol Herbst <karolherbst@gmail.com> Reviewed-by:
Ilia Mirkin <imirkin@alum.mit.edu> Cc: mesa-stable@lists.freedesktop.org