code: def test_merge2():
      sch = tir.Schedule(elementwise, debug_mask="all")
      block_c = sch.get_block("C")
      block_d = sch.get_block("D")
      i = sch.get_loops(block_c)[1]
      j = sch.get_loops(block_d)[1]
      sch.merge(i, j)
      assert_structural_equal_ignore_global_symbol(
          elementwise_merged2, sch.mod["main"]
      )
      verify_trace_roundtrip(sch=sch, mod=elementwise)
  
file_path: tvm/tests/python/tir-schedule/test_tir_schedule_merge.py
imports: import pytest
  import tvm
  import tvm.testing
  from tvm import tir
  from tvm.script import tir
  from tvm.tir.schedule.testing import verify_trace_roundtrip, assert_structural_equal_ignore_global_symbol
label_desc: Use image node_id 5 for calling a global function with example usage: test_merge2() without return types