tqchen commented on issue #16627:
URL: https://github.com/apache/tvm/issues/16627#issuecomment-2013657524
```python
import tvm
import numpy as np
from tvm.script import tir as T
@tvm.script.ir_module
class MyModule:
@T.prim_func
def vector_copy(A: T.Buffer((4,), "int8x4"),
B: T.Buffer((4,), "int8x4")):
T.func_attr({"global_symbol": "vector_copy", "tir.noalias": True})
for i in T.grid(4):
with T.block("B"):
vi = T.axis.spatial(128, i)
B[vi] = A[vi]
def main():
mod = tvm.build(MyModule)
a_np = np.arange(16).astype("int8").reshape((4, 4))
a = tvm.nd.empty((4,), dtype="int8x4").copyfrom(a_np)
b = tvm.nd.empty((4,), dtype="int8x4")
mod["vector_copy"](a, b)
print(b.numpy())
main()
```
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