total instructions in shared programs: 7127270 -> 7103195 (-0.34%)
instructions in affected programs: 1376832 -> 1352757 (-1.75%)
helped: 7394
HURT: 622
GAINED: 4
LOST: 2
---
src/compiler/nir/nir_opt_algebraic.py | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/compiler/nir/nir_opt_algebraic.py
b/src/compiler/nir/nir_opt_algebraic.py
index cc2c229..1863033 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -227,6 +227,10 @@ optimizations = [
(('fabs', ('fsub', 0.0, a)), ('fabs', a)),
(('iabs', ('isub', 0, a)), ('iabs', a)),
+ # Propagate negation up multiplication chains
+ (('fmul', ('fneg', a), b), ('fneg', ('fmul', a, b))),
+ (('imul', ('ineg', a), b), ('ineg', ('fmul', a, b))),
+
# Misc. lowering
(('fmod', a, b), ('fsub', a, ('fmul', b, ('ffloor', ('fdiv', a, b)))),
'options->lower_fmod'),
(('uadd_carry', a, b), ('b2i', ('ult', ('iadd', a, b), a)),
'options->lower_uadd_carry'),
--
2.4.10
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
