tree eee81146ea18ef3b915cf29c9b45c06d89a13fdd
parent d2c94ee1d8f4bc436d4cbb2632fc0b27d6966c62
author Martin Storsjö <martin@martin.st> 1569960317 +0300
committer Jean-Baptiste Kempf <jb@videolan.org> 1570512801 +0200

arm64: cdef: Rewrite an expression slightly

Instead of apply_sign(imin(abs(diff), clip), diff), do
imax(imin(diff, clip), -clip).

Before:                  Cortex A53     A72     A73
cdef_filter_4x4_8bpc_neon:    592.7   374.5   384.5
cdef_filter_4x8_8bpc_neon:   1093.0   704.4   706.6
cdef_filter_8x8_8bpc_neon:   1962.6  1239.4  1252.1
After:
cdef_filter_4x4_8bpc_neon:    593.7   355.5   373.2
cdef_filter_4x8_8bpc_neon:   1091.6   663.2   685.3
cdef_filter_8x8_8bpc_neon:   1964.2  1182.5  1210.8