vc4: Allow dead code elimination of color reads.
authorEric Anholt <eric@anholt.net>
Tue, 2 Dec 2014 20:58:27 +0000 (12:58 -0800)
committerEric Anholt <eric@anholt.net>
Fri, 5 Dec 2014 18:43:14 +0000 (10:43 -0800)
commitdadc32ac8072cf78b405d1b54414e1f020b0de41
tree30466da35189f330235b6857baf21e8922bc1547
parent34cf86bdc48e1b350437fe831fedd4632f4e06c2
vc4: Allow dead code elimination of color reads.

This might happen if the blending functions are set up to not actually use
the destination color/alpha, for example.
src/gallium/drivers/vc4/vc4_qir.c