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apache--tvm/tests/python/arith/test_arith_detect_clip_bound.py
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chore: import upstream snapshot with attribution
2026-07-13 13:36:25 +08:00

56 lines
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Python

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
import tvm
import tvm.testing
def test_basic():
a = tvm.tirx.Var("a", "int32")
b = tvm.tirx.Var("b", "int32")
c = tvm.tirx.Var("c", "int32")
m = tvm.arith.detect_clip_bound(tvm.tirx.all(a * 1 < b * 6, a - 1 > 0), [a])
tvm.testing.assert_prim_expr_equal(m[1], b * 6 - 1)
assert m[0].value == 2
m = tvm.arith.detect_clip_bound(tvm.tirx.all(a * 1 < b * 6, a - 1 > 0), [a, b])
assert len(m) == 0
m = tvm.arith.detect_clip_bound(tvm.tirx.all(a + 10 * c <= 20, b - 1 > 0), [a, b])
tvm.testing.assert_prim_expr_equal(m[1], 20 - 10 * c)
tvm.testing.assert_prim_expr_equal(m[2], 2)
m = tvm.arith.detect_clip_bound(tvm.tirx.all(tvm.tirx.Not(a * 1 > b * 6), a - 1 > 0), [a])
tvm.testing.assert_prim_expr_equal(m[1], b * 6)
m = tvm.arith.detect_clip_bound(tvm.tirx.all(tvm.tirx.Min(a, b) > 3, a - 10 < 0), [a, b])
tvm.testing.assert_prim_expr_equal(m[0], 4)
tvm.testing.assert_prim_expr_equal(m[1], 9)
tvm.testing.assert_prim_expr_equal(m[2], 4)
def test_trivial_eq():
a = tvm.tirx.Var("a", "int32")
b = tvm.tirx.Var("b", "int32")
m = tvm.arith.detect_clip_bound(b == 3, [a, b])
tvm.testing.assert_prim_expr_equal(m[2], 3)
tvm.testing.assert_prim_expr_equal(m[3], 3)
m = tvm.arith.detect_clip_bound(tvm.tirx.all(a == 4, b == 3), [a, b])
tvm.testing.assert_prim_expr_equal(m[0], 4)
tvm.testing.assert_prim_expr_equal(m[1], 4)
tvm.testing.assert_prim_expr_equal(m[2], 3)
tvm.testing.assert_prim_expr_equal(m[3], 3)
if __name__ == "__main__":
test_basic()