tests/python/runtime/test_runtime_extension.py

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import tvm
import numpy as np
from tvm.script import ir as I, tir as T


def test_dltensor_compatible():
    @I.ir_module
    class Module:
        @T.prim_func
        def arange(A: T.handle):
            n = T.int32()
            Ab = T.match_buffer(A, (n,), "int64")
            for i in T.serial(n - 1):
                Ab[i + 1] = Ab[i] + T.int64(1)

    mod = Module
    f = tvm.compile(mod, target="llvm")
    a = tvm.runtime.tensor(np.zeros(10, dtype="int64"))
    f(a)
    np.testing.assert_equal(a.numpy(), np.arange(a.shape[0]))


if __name__ == "__main__":
    test_dltensor_compatible()