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| author | Rob Clark <robclark@freedesktop.org> | 2016-05-07 13:01:24 -0400 |
|---|---|---|
| committer | Rob Clark <robclark@freedesktop.org> | 2016-06-03 16:05:03 -0400 |
| commit | dfbae7d64f4d563bc65af338cdcb217f10474c1c (patch) | |
| tree | 2a94671ec13b440c7c993cea08c28511cb205e30 /src/compiler/nir/nir_search.c | |
| parent | a64c7cd2bac33a3a2bf908b5ef538dff03b93b73 (diff) | |
| download | external_mesa3d-dfbae7d64f4d563bc65af338cdcb217f10474c1c.zip external_mesa3d-dfbae7d64f4d563bc65af338cdcb217f10474c1c.tar.gz external_mesa3d-dfbae7d64f4d563bc65af338cdcb217f10474c1c.tar.bz2 | |
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 <robclark@freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Diffstat (limited to 'src/compiler/nir/nir_search.c')
| -rw-r--r-- | src/compiler/nir/nir_search.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_search.c b/src/compiler/nir/nir_search.c index 2c2fd92..b21fb2c 100644 --- a/src/compiler/nir/nir_search.c +++ b/src/compiler/nir/nir_search.c @@ -127,6 +127,9 @@ match_value(const nir_search_value *value, nir_alu_instr *instr, unsigned src, instr->src[src].src.ssa->parent_instr->type != nir_instr_type_load_const) return false; + if (var->cond && !var->cond(instr, src, num_components, new_swizzle)) + return false; + if (var->type != nir_type_invalid) { if (instr->src[src].src.ssa->parent_instr->type != nir_instr_type_alu) return false; |