tests/python/arith/test_arith_detect_cse.py

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import tvm
import tvm.testing
from tvm.script import tir as T


def test_detect_cs():
    x = T.int32()
    y = T.int32()
    z = T.int32()
    c = T.floor(x + y + 0.5) + x + z * (T.floor(x + y + 0.5))
    m = tvm.arith.detect_common_subexpr(c, 2)
    assert c.a.a in m
    assert m[c.a.a] == 2


if __name__ == "__main__":
    tvm.testing.main()