xref: /third_party/mesa3d/src/freedreno/ir3/ir3_nir_trig.py

#
# Copyright (C) 2016 Intel Corporation
#
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# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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# IN THE SOFTWARE.

import argparse
import sys

trig_workarounds = [
   (('fsin', 'x@32'), ('fsin', ('!ffma', 6.2831853, ('ffract', ('!ffma', 0.15915494, 'x', 0.5)), -3.14159265))),
   (('fcos', 'x@32'), ('fcos', ('!ffma', 6.2831853, ('ffract', ('!ffma', 0.15915494, 'x', 0.5)), -3.14159265))),
]


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('-p', '--import-path', required=True)
    args = parser.parse_args()
    sys.path.insert(0, args.import_path)
    run()


def run():
    import nir_algebraic  # pylint: disable=import-error

    print('#include "ir3_nir.h"')
    print(nir_algebraic.AlgebraicPass("ir3_nir_apply_trig_workarounds",
                                      trig_workarounds).render())


if __name__ == '__main__':
    main()