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nir: honor lower_double options for ffloor and ffract

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v2: Don't lower ffloor@64 to ffract@64 when both ops are
    to be lowered. Settle on ffloor in opt_algebraic because
    in can be lowered to other ops in lower_double_ops.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>(v1)
Jason Ekstrand <jason.ekstrand@collabora.com> (v1)

Reviewed-by: Emma Anholt <emma@anholt.net> (v1)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16431>
This commit is contained in:
Gert Wollny
2022-05-08 08:07:36 +02:00
committed by Marge Bot
parent 9b14636876
commit 3749a6ecd2
1 changed files with 9 additions and 3 deletions
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12
src/compiler/nir/nir_opt_algebraic.py
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@@ -358,9 +358,15 @@ optimizations.extend([
(('~flrp', a, 0.0, c), ('fadd', ('fmul', ('fneg', a), c), a)),
(('ftrunc', a), ('bcsel', ('flt', a, 0.0), ('fneg', ('ffloor', ('fabs', a))), ('ffloor', ('fabs', a))), 'options->lower_ftrunc'),
(('ffloor', a), ('fsub', a, ('ffract', a)), 'options->lower_ffloor'),
(('fadd', a, ('fneg', ('ffract', a))), ('ffloor', a), '!options->lower_ffloor'),
(('ffract', a), ('fsub', a, ('ffloor', a)), 'options->lower_ffract'),
(('ffloor@16', a), ('fsub', a, ('ffract', a)), 'options->lower_ffloor'),
(('ffloor@32', a), ('fsub', a, ('ffract', a)), 'options->lower_ffloor'),
(('ffloor@64', a), ('fsub', a, ('ffract', a)), 'options->lower_ffloor || ((options->lower_doubles_options & nir_lower_dfloor) && !(options->lower_doubles_options & nir_lower_dfloor))'),
(('fadd@16', a, ('fneg', ('ffract', a))), ('ffloor', a), '!options->lower_ffloor'),
(('fadd@32', a, ('fneg', ('ffract', a))), ('ffloor', a), '!options->lower_ffloor'),
(('fadd@64', a, ('fneg', ('ffract', a))), ('ffloor', a), '!options->lower_ffloor && !(options->lower_doubles_options & nir_lower_dfloor)'),
(('ffract@16', a), ('fsub', a, ('ffloor', a)), 'options->lower_ffract'),
(('ffract@32', a), ('fsub', a, ('ffloor', a)), 'options->lower_ffract'),
(('ffract@64', a), ('fsub', a, ('ffloor', a)), 'options->lower_ffract || (options->lower_doubles_options & nir_lower_dfract)'),
(('fceil', a), ('fneg', ('ffloor', ('fneg', a))), 'options->lower_fceil'),
(('ffma@16', a, b, c), ('fadd', ('fmul', a, b), c), 'options->lower_ffma16'),
(('ffma@32', a, b, c), ('fadd', ('fmul', a, b), c), 'options->lower_ffma32'),