aboutsummaryrefslogtreecommitdiffstats
path: root/src/compiler/nir/nir_opt_algebraic.py
diff options
context:
space:
mode:
Diffstat (limited to 'src/compiler/nir/nir_opt_algebraic.py')
-rw-r--r--src/compiler/nir/nir_opt_algebraic.py9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index ad75228a50f..0ada9159219 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -354,7 +354,8 @@ optimizations = [
# a single non-constant. We could do better eventually.
(('~fmul', '#a', ('fmul', b, '#c')), ('fmul', ('fmul', a, c), b)),
(('imul', '#a', ('imul', b, '#c')), ('imul', ('imul', a, c), b)),
- (('~fadd', '#a', ('fadd', b, '#c')), ('fadd', ('fadd', a, c), b)),
+ (('~fadd', '#a', ('fadd', b, '#c')), ('fadd', ('fadd', a, c), b)),
+ (('~fadd', '#a', ('fneg', ('fadd', b, '#c'))), ('fadd', ('fadd', a, ('fneg', c)), ('fneg', b))),
(('iadd', '#a', ('iadd', b, '#c')), ('iadd', ('iadd', a, c), b)),
# By definition...
@@ -569,8 +570,10 @@ before_ffma_optimizations = [
late_optimizations = [
# Most of these optimizations aren't quite safe when you get infinity or
# Nan involved but the first one should be fine.
- (('flt', ('fadd', a, b), 0.0), ('flt', a, ('fneg', b))),
- (('~fge', ('fadd', a, b), 0.0), ('fge', a, ('fneg', b))),
+ (('flt', ('fadd', a, b), 0.0), ('flt', a, ('fneg', b))),
+ (('flt', ('fneg', ('fadd', a, b)), 0.0), ('flt', ('fneg', a), b)),
+ (('~fge', ('fadd', a, b), 0.0), ('fge', a, ('fneg', b))),
+ (('~fge', ('fneg', ('fadd', a, b)), 0.0), ('fge', ('fneg', a), b)),
(('~feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))),
(('~fne', ('fadd', a, b), 0.0), ('fne', a, ('fneg', b))),