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nir: Recognize another open coded lrp.

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total instructions in shared programs: 6195924 -> 6195768 (-0.00%)
instructions in affected programs:     4876 -> 4720 (-3.20%)
helped:                                58
HURT:                                  10

Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Matt Turner 2015-03-26 10:36:42 -07:00
parent e82437e141
commit e26783d445
1 changed files with 1 additions and 0 deletions
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src/glsl/nir/nir_opt_algebraic.py
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@ -77,6 +77,7 @@ optimizations = [
(('flrp', 0.0, a, b), ('fmul', a, b)),
(('flrp', a, b, c), ('fadd', ('fmul', c, ('fsub', b, a)), a), 'options->lower_flrp'),
(('fadd', ('fmul', a, ('fadd', 1.0, ('fneg', c))), ('fmul', b, c)), ('flrp', a, b, c), '!options->lower_flrp'),
(('fadd', a, ('fmul', c, ('fadd', b, ('fneg', a)))), ('flrp', a, b, c), '!options->lower_flrp'),
(('ffma', a, b, c), ('fadd', ('fmul', a, b), c), 'options->lower_ffma'),
(('fadd', ('fmul', a, b), c), ('ffma', a, b, c), '!options->lower_ffma'),
# Comparison simplifications