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f17d350001
This change relocates the fdot lowering from the generic NIR to the lima, since lima is the only consumer of this particular lowering. This avoids potential conflicts with the similar fdot lowering already present in nir_lower_alu_width. Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com> Reviewed-by: Erico Nunes <nunes.erico@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34757>
76 lines
2.8 KiB
Python
76 lines
2.8 KiB
Python
#
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# Copyright (C) 2019 Vasily Khoruzhick <anarsoul@gmail.com>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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import argparse
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import sys
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from math import pi
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# Utgard scales fsin/fcos arguments by 2*pi.
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# Pass must be run only once, after the main loop
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scale_trig = [
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(('fsin', 'a'), ('fsin', ('fmul', 'a', 1.0 / (2.0 * pi)))),
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(('fcos', 'a'), ('fcos', ('fmul', 'a', 1.0 / (2.0 * pi)))),
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]
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# GP has fsign op, so we can use cheaper lowering than one in generic opt_algebraic
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lower_ftrunc = [
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(('ftrunc', 'a'), ('fmul', ('fsign', 'a'), ('ffloor', ('fmax', 'a', ('fneg', 'a')))))
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]
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lower_fdot = [
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# Lower fdot to fsum
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(('fdot2', 'a', 'b'), ('fsum2', ('fmul', 'a', 'b'))),
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(('fdot3', 'a', 'b'), ('fsum3', ('fmul', 'a', 'b'))),
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(('fdot4', 'a', 'b'), ('fsum4', ('fmul', 'a', 'b'))),
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(('fsum2', 'a'), ('fadd', 'a.x', 'a.y')),
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]
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# PP fuse clamp_positive. Shared with Midgard/Bifrost
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ppir_algebraic_late = [
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(('fmax', 'a', 0.0), ('fclamp_pos', 'a')),
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]
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('-p', '--import-path', required=True)
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args = parser.parse_args()
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sys.path.insert(0, args.import_path)
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run()
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def run():
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import nir_algebraic # pylint: disable=import-error
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print('#include "ir/lima_ir.h"')
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print(nir_algebraic.AlgebraicPass("lima_nir_scale_trig",
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scale_trig).render())
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print(nir_algebraic.AlgebraicPass("lima_nir_lower_ftrunc",
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lower_ftrunc).render())
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print(nir_algebraic.AlgebraicPass("lima_nir_lower_fdot",
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lower_fdot).render())
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print(nir_algebraic.AlgebraicPass("lima_nir_ppir_algebraic_late",
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ppir_algebraic_late).render())
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if __name__ == '__main__':
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main()
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