nir: Don't abs slt and friends

No shader-db changes, but this is symmetric with the previous commit.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index 9cec15c..0f2bd18 100644 (file)
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -134,6 +134,10 @@ optimizations = [
    (('ior', ('flt', a, c), ('flt', b, c)), ('flt', ('fmin', a, b), c)),
    (('ior', ('fge', a, b), ('fge', a, c)), ('fge', a, ('fmin', b, c))),
    (('ior', ('fge', a, c), ('fge', b, c)), ('fge', ('fmax', a, b), c)),
+   (('fabs', ('slt', a, b)), ('slt', a, b)),
+   (('fabs', ('sge', a, b)), ('sge', a, b)),
+   (('fabs', ('seq', a, b)), ('seq', a, b)),
+   (('fabs', ('sne', a, b)), ('sne', a, b)),
    (('slt', a, b), ('b2f', ('flt', a, b)), 'options->lower_scmp'),
    (('sge', a, b), ('b2f', ('fge', a, b)), 'options->lower_scmp'),
    (('seq', a, b), ('b2f', ('feq', a, b)), 'options->lower_scmp'),