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authorEric Anholt <[email protected]>2015-03-30 10:38:21 -0700
committerEric Anholt <[email protected]>2015-03-30 12:57:45 -0700
commit8c5dcdbccb68b73d2856d9c1faafadc536e682e3 (patch)
treee8865f27d14237fdd3892b5e134f8f4d8f5404a3 /common.py
parentdbe67d76e0487b04a7b6081d9d46666db3c3ee3e (diff)
vc4: Add a constant folding pass.
This cleans up some pointless operations generated by the in-driver mul24 lowering (commonly generated by making a vec4 index for a matrix in a uniform array). I could fill in other operations, but pretty much anything else ought to be getting handled at the NIR level, I think. total uniforms in shared programs: 13423 -> 13421 (-0.01%) uniforms in affected programs: 346 -> 344 (-0.58%)
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