src/freedreno/ir3/ir3_nir_imul.py

   1 #
   2 # Copyright (C) 2019 Igalia S.L.
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  11 # The above copyright notice and this permission notice (including the next
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  15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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  21 # IN THE SOFTWARE.
  22
  23 from __future__ import print_function
  24
  25 import argparse
  26 import sys
  27
  28 imul_lowering = [
  29         (('imul', 'a@32', 'b@32'), ('imadsh_mix16', 'b', 'a', ('imadsh_mix16', 'a', 'b', ('umul_low', 'a', 'b')))),
  30         # We want to run the imad24 rule late so that it doesn't fight
  31         # with constant folding the (imul24, a, b).  Since this pass is
  32         # run late, and this is kinda imul related, this seems like a
  33         # good place for it:
  34         (('iadd', ('imul24', 'a', 'b'), 'c'), ('imad24_ir3', 'a', 'b', 'c')),
  35 ]
  36
  37
  38 def main():
  39     parser = argparse.ArgumentParser()
  40     parser.add_argument('-p', '--import-path', required=True)
  41     args = parser.parse_args()
  42     sys.path.insert(0, args.import_path)
  43     run()
  44
  45
  46 def run():
  47     import nir_algebraic  # pylint: disable=import-error
  48
  49     print('#include "ir3_nir.h"')
  50     print(nir_algebraic.AlgebraicPass("ir3_nir_lower_imul",
  51                                       imul_lowering).render())
  52
  53
  54 if __name__ == '__main__':
  55     main()