tree 10ab7fceb0705b38f5878c00e557badc0887ef2d
parent feb9c7acf385e62ce2b25e23b4c7b27db3945d38
author Cheng Chen <chengchen@google.com> 1519235600 -0800
committer Cheng Chen <chengchen@google.com> 1519422844 +0000

Round compound prediction into 16 bits

Apply shifts for compound prediction immediately when sum
or weighted sum (for jnt_comp) is computed. Such that all
intermediate results can be fit into 16 bits.

Note: now the buffer is still 32 bits. We need new simd functions
for 16 bits and finally reduce buffer to 16 bits.

Change-Id: Ia46a4736d69aa028623dfb9f036a6ce527e5cd9f