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#
#   http://www.apache.org/licenses/LICENSE-2.0
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import pytest

import tvm
import tvm.testing
from tvm.ir.module import IRModule
from tvm import tir
from tvm.script import tir as T


def test_texture_scope():
    @tvm.script.ir_module
    class PlusOneMultTwo:
        @T.prim_func
        def main(a: T.handle, b: T.handle) -> None:
            T.func_attr({"tir.noalias": True})
            A = T.match_buffer(a, (128, 128, 4), dtype="float32", scope="global.texture")
            B = T.alloc_buffer((128, 128, 4), dtype="float32", scope="global.texture")
            C = T.match_buffer(b, (128, 128, 4), dtype="float32", scope="global.texture")
            for block_idx in T.thread_binding(0, 128, thread="blockIdx.x"):
                for thread_idx in T.thread_binding(0, 128, thread="threadIdx.x"):
                    for k in T.serial(4):
                        with T.block("B"):
                            vb, vt, vk = T.axis.remap("SSS", [block_idx, thread_idx, k])
                            B[vb, vt, vk] = A[vb, vt, vk] + T.float32(1)
            for block_idx in T.thread_binding(0, 128, thread="blockIdx.x"):
                for thread_idx in T.thread_binding(0, 128, thread="threadIdx.x"):
                    for k in T.serial(4):
                        with T.block("C"):
                            vb, vt, vk = T.axis.remap("SSS", [block_idx, thread_idx, k])
                            C[vb, vt, vk] = B[vb, vt, vk] * T.float32(2)

    sch = tir.Schedule(PlusOneMultTwo, debug_mask="all")

    def schedule_block(block):
        _, _, inner = sch.get_loops(block)
        sch.vectorize(inner)

    schedule_block(sch.get_block("B"))
    schedule_block(sch.get_block("C"))

    target = tvm.target.Target("opencl")
    mod = tvm.compile(sch.mod["main"], target=target)


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