diff options
| author | Matt Turner <[email protected]> | 2015-03-26 11:08:01 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2015-04-01 13:43:57 -0700 |
| commit | a2b6e908cfa1b85bc3eed9d31869ec3768b3daa2 (patch) | |
| tree | dfd92baa877647dd74c25200eaf88303f2d1e77c | |
| parent | 099c729b4cb6863e8ddbdb9afe7fd7bd53c11ee1 (diff) | |
nir: Add addition/multiplication identities of exp/log.
instructions in affected programs: 2858 -> 2808 (-1.75%)
helped: 12
Reviewed-by: Eric Anholt <[email protected]>
| -rw-r--r-- | src/glsl/nir/nir_opt_algebraic.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py index 185c291aa72..3a3e6bfabb2 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -153,6 +153,12 @@ optimizations = [ (('flog', ('frsq', a)), ('fmul', -0.5, ('flog', a))), (('flog2', ('fpow', a, b)), ('fmul', b, ('flog2', a))), (('flog', ('fpow', a, b)), ('fmul', b, ('flog', a))), + (('fadd', ('flog2', a), ('flog2', b)), ('flog2', ('fmul', a, b))), + (('fadd', ('flog', a), ('flog', b)), ('flog', ('fmul', a, b))), + (('fadd', ('flog2', a), ('fneg', ('flog2', b))), ('flog2', ('fdiv', a, b))), + (('fadd', ('flog', a), ('fneg', ('flog', b))), ('flog', ('fdiv', a, b))), + (('fmul', ('fexp2', a), ('fexp2', b)), ('fexp2', ('fadd', a, b))), + (('fmul', ('fexp', a), ('fexp', b)), ('fexp', ('fadd', a, b))), # Division and reciprocal (('fdiv', 1.0, a), ('frcp', a)), (('frcp', ('frcp', a)), a), |