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# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
from onnxscript import graph, script
from onnxscript.onnx_opset import opset15 as op
from onnxscript.onnx_types import BOOL, INT64
@script()
def cumulative_sum(X: INT64["N"]):
"""Test use of a nested-function as a graph-attribute, using the Scan operator."""
@graph()
def Sum(sum_in, next):
sum_out = sum_in + next
scan_out = op.Identity(sum_out)
return sum_out, scan_out
zero = op.Constant(value_int=0)
_, result = op.Scan(zero, X, body=Sum, num_scan_inputs=1)
return result
@script()
def sum_to(X: INT64):
"""Test use of a nested-function as a graph-attribute, using the Loop operator."""
@graph()
def LoopBody(i: INT64, cond: BOOL, sum_in: INT64):
cond_out = op.Identity(cond)
sum_out = sum_in + i
scan_out = op.Identity(sum_out)
return cond_out, sum_out, scan_out
zero = op.Constant(value_int=0)
_, result = op.Loop(X, None, zero, body=LoopBody)
return result
@script()
def sum_to_error(X: INT64):
"""Test omitted @graph annotation error."""
def LoopBody(i: INT64, cond: BOOL, sum_in: INT64):
cond_out = op.Identity(cond)
sum_out = sum_in + i
scan_out = op.Identity(sum_out)
return cond_out, sum_out, scan_out
zero = op.Constant(value_int=0)
_, result = op.Loop(X, None, zero, body=LoopBody)
return result
@script()
def loop_add(X: INT64["N"], M: INT64):
"""Test use of a nested-function as a graph-attribute, with references to
outer scope variables."""
@graph()
def LoopBody(i: INT64, cond: BOOL, sum_in: INT64["N"]):
cond_out = op.Identity(cond)
sum_out = sum_in + X
return cond_out, sum_out
result = op.Loop(M, None, X, body=LoopBody)
return result
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