diff options
| author | Rob Clark <[email protected]> | 2016-05-07 13:01:24 -0400 |
|---|---|---|
| committer | Rob Clark <[email protected]> | 2016-06-03 16:05:03 -0400 |
| commit | dfbae7d64f4d563bc65af338cdcb217f10474c1c (patch) | |
| tree | 2a94671ec13b440c7c993cea08c28511cb205e30 /src/compiler/nir/nir.h | |
| parent | a64c7cd2bac33a3a2bf908b5ef538dff03b93b73 (diff) | |
nir/algebraic: support for power-of-two optimizations
Some optimizations, like converting integer multiply/divide into left/
right shifts, have additional constraints on the search expression.
Like requiring that a variable is a constant power of two. Support
these cases by allowing a fxn name to be appended to the search var
expression (ie. "a#32(is_power_of_two)").
Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/compiler/nir/nir.h')
| -rw-r--r-- | src/compiler/nir/nir.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h index 20f65201890..3f9309c04dd 100644 --- a/src/compiler/nir/nir.h +++ b/src/compiler/nir/nir.h @@ -1651,6 +1651,9 @@ typedef struct nir_shader_compiler_options { /* lower {slt,sge,seq,sne} to {flt,fge,feq,fne} + b2f: */ bool lower_scmp; + /** enables rules to lower idiv by power-of-two: */ + bool lower_idiv; + /* Does the native fdot instruction replicate its result for four * components? If so, then opt_algebraic_late will turn all fdotN * instructions into fdot_replicatedN instructions. |