code: def test_llvm_order_functions():
      """Check that functions in the LLVM module are ordered alphabetically."""
  
      # Note: the order is alphabetical because that's a predictable ordering. Any predictable
      # ordering will work fine, but if the ordering changes, this test will need to be updated.
      def make_call_extern(caller, callee):
          # Create a function:
          #   float32 caller(float32 v) { return callee(v); }
          ib = tvm.tir.ir_builder.create()
          v = tvm.te.var("v", dtype="float32")
          t = tvm.tir.call_extern("float32", callee, v)
          ib.emit(t)
          return tvm.tir.PrimFunc([v], ib.get()).with_attr(
              "global_symbol", caller
          )
  
      # Create some functions in a random order.
      functions = {
          "Danny": make_call_extern("Danny", "Dave"),
          "Sammy": make_call_extern("Sammy", "Eve"),
          "Kirby": make_call_extern("Kirby", "Fred"),
      }
      mod = tvm.IRModule(functions=functions)
      ir_text = tvm.build(mod, None, target="llvm").get_source("ll")
      # Skip functions whose names start with _.
      matches = re.findall(
          r"^define[^@]*@([a-zA-Z][a-zA-Z0-9_]*)", ir_text, re.MULTILINE
      )
      assert matches == sorted(matches)
  
imports: import collections
  import ctypes
  import json
  import math
  import numpy
  import pytest
  import re
  import sys
  import tvm
  import tvm.testing
  from tvm import te
  from tvm.contrib import clang, utils
  from tvm.relay.backend import Runtime
  from tvm.script import tir, ir
  from tvm.target.codegen import llvm_get_intrinsic_name, llvm_lookup_intrinsic_id
label_desc: Use image node_id 31 for calling a global function with example usage: test_llvm_order_functions() and returns: tvm