make_hlo

print_hlo.py

def make_hlo(f, optimize=False, metadata=False, platform=None):
  """Utility function for printing JAX-emitted HLO and XLA-compiled HLO.

  Args:
    f: jax function to return hlo for.
    optimize: bool: whether to return platform-specific, XLA-optimized HLO
    metadata: bool: whether to include JAX metadata information
    platform: Optional[str]: None, 'cpu','gpu','tpu' - platform to compile for,
      None uses default.

  Returns:
    str: HLO in text format.
  """
  client = jax.lib.xla_bridge.get_backend(platform)
  print_opts = jax.lib.xla_client._xla.HloPrintOptions.short_parsable()
  print_opts.print_metadata = metadata
  def wrapped_fn(*args, **kwargs):
    c = jax.xla_computation(f)(*args, **kwargs)
    if optimize:
      return client.compile(c).hlo_modules()[0].to_string(print_opts)
    else:
      return c.as_hlo_module().to_string(print_opts)
  return wrapped_fn