diff options
| author | Christian Gmeiner <[email protected]> | 2018-09-01 21:15:27 +0200 |
|---|---|---|
| committer | Christian Gmeiner <[email protected]> | 2018-11-12 21:57:25 +0100 |
| commit | c6aaafa3a1745c0c5a3b4cc0e023b74e2eccbaf4 (patch) | |
| tree | b1721240dc579966c86201aa95898d5ac4edbebe | |
| parent | 41c8f991379d1a714cb6c161edfacca1dd296d87 (diff) | |
nir: add lowering for ffloor
Signed-off-by: Christian Gmeiner <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
| -rw-r--r-- | src/compiler/nir/nir.h | 3 | ||||
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h index f984c76fe66..c469e111b2c 100644 --- a/src/compiler/nir/nir.h +++ b/src/compiler/nir/nir.h @@ -2083,6 +2083,9 @@ typedef struct nir_shader_compiler_options { */ bool fdot_replicates; + /** lowers ffloor to fsub+ffract: */ + bool lower_ffloor; + /** lowers ffract to fsub+ffloor: */ bool lower_ffract; diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 8b24daddfdc..0d8802582aa 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -123,6 +123,7 @@ optimizations = [ (('~flrp', a, 0.0, c), ('fadd', ('fmul', ('fneg', a), c), a)), (('flrp@32', a, b, c), ('fadd', ('fmul', c, ('fsub', b, a)), a), 'options->lower_flrp32'), (('flrp@64', a, b, c), ('fadd', ('fmul', c, ('fsub', b, a)), a), 'options->lower_flrp64'), + (('ffloor', a), ('fsub', a, ('ffract', a)), 'options->lower_ffloor'), (('ffract', a), ('fsub', a, ('ffloor', a)), 'options->lower_ffract'), (('~fadd', ('fmul', a, ('fadd', 1.0, ('fneg', ('b2f', c)))), ('fmul', b, ('b2f', c))), ('bcsel', c, b, a), 'options->lower_flrp32'), (('~fadd@32', ('fmul', a, ('fadd', 1.0, ('fneg', c ))), ('fmul', b, c )), ('flrp', a, b, c), '!options->lower_flrp32'), |