glsl: Optimize round-half-up pattern.
authorMatt Turner <mattst88@gmail.com>
Wed, 28 Jan 2015 18:09:14 +0000 (10:09 -0800)
committerMatt Turner <mattst88@gmail.com>
Wed, 11 Feb 2015 21:50:19 +0000 (13:50 -0800)
commitc262b2b582798f389601b8198b1dbf3c7ba7a187
treeeba510689fefddb77dec0d706dbc5c5a6a47ace3
parenta5455ab1cae85dbe40c12ada9030bc4b4537ced7
glsl: Optimize round-half-up pattern.

Hurts some Psychonauts shaders, but after the next patch (which this
enables) they're fewer instructions than before this patch.
src/glsl/opt_algebraic.cpp