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| author | Ian Romanick <ian.d.romanick@intel.com> | 2020-09-14 11:05:51 -0700 |
|---|---|---|
| committer | Ian Romanick <ian.d.romanick@intel.com> | 2021-04-02 12:56:19 -0700 |
| commit | 0aadf06c0595978ad9c847bbfa463d16aca9a6b8 (patch) | |
| tree | 43290b231a5028c864c4789baa64ad5eb224dbe6 | |
| parent | 39075aee348132e8e8f68db650a2a7d118dd5d86 (diff) | |
WIP: nir/algebraic: Add algebraic opt for fge comparison with identical operands.NaNu-NaNu
No shader-db or pipeline-db changes on any Intel platform.
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index dec81509f05..0b1c13e8675 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -1129,6 +1129,9 @@ optimizations.extend([ (('fge', 'a(is_a_number)', a), True), (('feq', 'a(is_a_number)', a), True), (('fneu', 'a(is_a_number)', a), False), + # Other optimizations can reduce a == a when logically joined with other + # comparisons even when a might not be a number. + (('fge', a, a), ('feq', a, a)), # Logical and bit operations (('iand', a, a), a), (('iand', a, ~0), a), |