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import tvm
import tvm.testing
from tvm.relax.transform import LowerAllocTensor
from tvm.script import ir as I
from tvm.script import relax as R


def test_basic():
    @I.ir_module
    class Before:
        @R.function
        def main():
            x = R.builtin.alloc_tensor(R.shape([16, 32]), "float32", 0)
            return x

    @I.ir_module
    class Expected:
        @R.function
        def main():
            storage = R.memory.alloc_storage(R.shape([2048]), 0, "global", "uint8")
            x = R.memory.alloc_tensor(storage, 0, R.shape([16, 32]), "float32")
            return x

    After = LowerAllocTensor()(Before)
    tvm.ir.assert_structural_equal(Expected, After)


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