diff options
| author | Jason Ekstrand <[email protected]> | 2015-03-23 17:36:22 -0700 |
|---|---|---|
| committer | Jason Ekstrand <[email protected]> | 2015-04-01 12:51:03 -0700 |
| commit | e06a3d0282ef018ae4a28b091a632c6a2e8c7c52 (patch) | |
| tree | 9198195292e0a8df1d7e80e226056f0017065a9d /src/glsl | |
| parent | da294f9b2f666f487001b2a25627c867c40eb3d9 (diff) | |
nir: Move the compare-with-zero optimizations to the late section
total instructions in shared programs: 4422307 -> 4422363 (0.00%)
instructions in affected programs: 4230 -> 4286 (1.32%)
helped: 0
HURT: 12
While this does hurt some things, the losses are minor and it prevents the
compare-with-zero optimization from fighting with ffma which is much more
important.
Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src/glsl')
| -rw-r--r-- | src/glsl/nir/nir_opt_algebraic.py | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py index 2079235b351..39f37bb0332 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -83,10 +83,6 @@ optimizations = [ (('inot', ('fge', a, b)), ('flt', a, b)), (('inot', ('ilt', a, b)), ('ige', a, b)), (('inot', ('ige', a, b)), ('ilt', a, b)), - (('flt', ('fadd', a, b), 0.0), ('flt', a, ('fneg', b))), - (('fge', ('fadd', a, b), 0.0), ('fge', a, ('fneg', b))), - (('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))), - (('fne', ('fadd', a, b), 0.0), ('fne', a, ('fneg', b))), (('fge', ('fneg', ('fabs', a)), 0.0), ('feq', a, 0.0)), (('bcsel', ('flt', a, b), a, b), ('fmin', a, b)), (('bcsel', ('flt', a, b), b, a), ('fmax', a, b)), @@ -200,6 +196,10 @@ for op in ['flt', 'fge', 'feq', 'fne', # they help code generation but do not necessarily produce code that is # more easily optimizable. late_optimizations = [ + (('flt', ('fadd', a, b), 0.0), ('flt', a, ('fneg', b))), + (('fge', ('fadd', a, b), 0.0), ('fge', a, ('fneg', b))), + (('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))), + (('fne', ('fadd', a, b), 0.0), ('fne', a, ('fneg', b))), ] print nir_algebraic.AlgebraicPass("nir_opt_algebraic", optimizations).render() |