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nir: Transform expressions of b2f(a) and b2f(b) to a && b

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v2: s/fmax/fmin/.  Noticed by Thomas Helland.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
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Ian Romanick
2018-08-01 19:31:22 -07:00
parent 4425f4786a
commit 1713c97181
1 changed files with 3 additions and 0 deletions
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src/compiler/nir/nir_opt_algebraic.py
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@@ -170,6 +170,9 @@ optimizations = [
(('fne', ('fmax', ('b2f', a), ('b2f', b)), 0.0), ('ior', a, b)),
(('fne', ('bcsel', a, 1.0, ('b2f', b)) , 0.0), ('ior', a, b)),
(('fne', ('b2f', a), ('fneg', ('b2f', b))), ('ior', a, b)),
(('fne', ('fmul', ('b2f', a), ('b2f', b)), 0.0), ('iand', a, b)),
(('fne', ('fmin', ('b2f', a), ('b2f', b)), 0.0), ('iand', a, b)),
(('fne', ('bcsel', a, ('b2f', b), 0.0) , 0.0), ('iand', a, b)),
(('feq', ('fadd', ('b2f', a), ('b2f', b)), 0.0), ('inot', ('ior', a, b))),
(('feq', ('fmax', ('b2f', a), ('b2f', b)), 0.0), ('inot', ('ior', a, b))),
(('feq', ('bcsel', a, 1.0, ('b2f', b)) , 0.0), ('inot', ('ior', a, b))),