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(parent: be126c8) | patch
nir: Add optimization for (a || True == True)
authorEric Anholt <eric@anholt.net>
Wed, 6 Jul 2016 22:00:45 +0000 (15:00 -0700)
committerEric Anholt <eric@anholt.net>
Tue, 12 Jul 2016 22:46:09 +0000 (15:46 -0700)
commitc93f6938d5dac1cfbeae7040929c232d70b6feae
tree90fd0efd1558b49fe418a66c69f6f73209ad7d61tree
parentbe126c8a2a4e67fff47e02078fceacb33ddac67fcommit | diff
nir: Add optimization for (a || True == True)

This was appearing in vc4 VS/CS in mupen64, due to vertex attrib lowering
producing some constants that were getting compared.

total instructions in shared programs: 112276 -> 112198 (-0.07%)
instructions in affected programs:     2239 -> 2161 (-3.48%)
total estimated cycles in shared programs: 283102 -> 283038 (-0.02%)
estimated cycles in affected programs:     2365 -> 2301 (-2.71%)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
src/compiler/nir/nir_opt_algebraic.py diff | blob | history