Benchmarks for the bilinear scaling performance in pixman (ARM NEON vs. separable
ARM NEON). Done with commit f12f0de29a25d3b84ce7e3e569e7f6a2b069e056:

    https://cgit.freedesktop.org/~siamashka/pixman/log/?h=20160405-separable-neon-bilinear-test