From: Ian Romanick <ian.d.roman...@intel.com>
All Gen platforms had pretty similar results. (Skylake shown)
total cycles in shared programs: 532578400 -> 532578397 (<.01%)
cycles in affected programs: 2784 -> 2781 (-0.11%)
helped: 1
HURT: 1
helped stats (abs) min: 4 max: 4 x̄: 4.00 x̃: 4
helped stats (rel) min: 0.26% max: 0.26% x̄: 0.26% x̃: 0.26%
HURT stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
HURT stats (rel) min: 0.08% max: 0.08% x̄: 0.08% x̃: 0.08%
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
---
src/compiler/nir/nir_opt_algebraic.py | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/compiler/nir/nir_opt_algebraic.py
b/src/compiler/nir/nir_opt_algebraic.py
index 629cae5f381..4e5e47fa133 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -177,6 +177,9 @@ optimizations = [
(('feq', ('fmin', ('b2f', a), ('b2f', b)), 0.0), ('inot', ('ior', a, b))),
(('feq', ('bcsel', a, 1.0, ('b2f', b)) , 0.0), ('inot', ('ior', a, b))),
(('feq', ('b2f', a), ('fneg', ('b2f', b))), ('inot', ('ior', a, b))),
+ (('feq', ('fmul', ('b2f', a), ('b2f', b)), 0.0), ('inot', ('iand', a, b))),
+ (('feq', ('fmax', ('b2f', a), ('b2f', b)), 0.0), ('inot', ('iand', a, b))),
+ (('feq', ('bcsel', a, ('b2f', b), 0.0) , 0.0), ('inot', ('iand', a, b))),
# -(b2f(a) + b2f(b)) < 0
# 0 < b2f(a) + b2f(b)
--
2.14.4
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