diff options
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index b984df0b1c7..5fc6fd80de4 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -199,6 +199,20 @@ optimizations = [ (('inot', ('ieq', a, b)), ('ine', a, b)), (('inot', ('ine', a, b)), ('ieq', a, b)), + # This helps some shaders because, after some optimizations, they end up + # with patterns like (-a < -b) || (b < a). In an ideal world, this sort of + # matching would be handled by CSE. + (('flt', ('fneg', a), ('fneg', b)), ('flt', b, a)), + (('fge', ('fneg', a), ('fneg', b)), ('fge', b, a)), + (('feq', ('fneg', a), ('fneg', b)), ('feq', b, a)), + (('fne', ('fneg', a), ('fneg', b)), ('fne', b, a)), + (('flt', ('fneg', a), -1.0), ('flt', 1.0, a)), + (('flt', -1.0, ('fneg', a)), ('flt', a, 1.0)), + (('fge', ('fneg', a), -1.0), ('fge', 1.0, a)), + (('fge', -1.0, ('fneg', a)), ('fge', a, 1.0)), + (('fne', ('fneg', a), -1.0), ('fne', 1.0, a)), + (('feq', -1.0, ('fneg', a)), ('feq', a, 1.0)), + # 0.0 >= b2f(a) # b2f(a) <= 0.0 # b2f(a) == 0.0 because b2f(a) can only be 0 or 1 @@ -1124,6 +1138,20 @@ late_optimizations = [ (('~fge', ('fmin(is_used_once)', ('fadd(is_used_once)', a, b), ('fadd', c, d)), 0.0), ('iand', ('fge', a, ('fneg', b)), ('fge', c, ('fneg', d)))), + (('flt', ('fneg', a), ('fneg', b)), ('flt', b, a)), + (('fge', ('fneg', a), ('fneg', b)), ('fge', b, a)), + (('feq', ('fneg', a), ('fneg', b)), ('feq', b, a)), + (('fne', ('fneg', a), ('fneg', b)), ('fne', b, a)), + (('flt', ('fneg', a), -1.0), ('flt', 1.0, a)), + (('flt', -1.0, ('fneg', a)), ('flt', a, 1.0)), + (('fge', ('fneg', a), -1.0), ('fge', 1.0, a)), + (('fge', -1.0, ('fneg', a)), ('fge', a, 1.0)), + (('fne', ('fneg', a), -1.0), ('fne', 1.0, a)), + (('feq', -1.0, ('fneg', a)), ('feq', a, 1.0)), + + (('ior', a, a), a), + (('iand', a, a), a), + (('fdot2', a, b), ('fdot_replicated2', a, b), 'options->fdot_replicates'), (('fdot3', a, b), ('fdot_replicated3', a, b), 'options->fdot_replicates'), (('fdot4', a, b), ('fdot_replicated4', a, b), 'options->fdot_replicates'), |