Continue working on the regsiter pressure estimation implementation - testing the implementation on libav micro benchmarks. With the patch some SMSed kernels in put-h264-qpel8-hv-lowpass-8, swscale-rgb24ToY_c mjpegenc benchmarks are identified as having register pressure. I'm looking at the kernels which still have regressions with SMS and it seems the reason is not related to register pressure.