I'll probably use this topic to update the backend status from time to time
So, today i've managed to compile and run dotproduct demo. Yay. The instruction choice quality is, well, meh. Still can't figure out how to get rid of load/store pairs generated due to the default calling convention. Probably i'll need to adjust the frontend a bit, so that it will at least know about the number of regs.
Anyway, it works. I'll try to compile other demos tomorrow. The biggest PITA is the FPU config flag, as it requires additional pass to set, and this pass is far from being perfect.