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Move external codegen test helpers into utils (apache#9008)
This is so they can be re-used as part of other tests which don't extend test_external_codegen.py I've identified that `test_json_runtime.py` and `test_pass_partition_graph.py` use a very similar but slightly different variant of these functions for future iterations.
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| # Licensed to the Apache Software Foundation (ASF) under one | ||
| # or more contributor license agreements. See the NOTICE file | ||
| # distributed with this work for additional information | ||
| # regarding copyright ownership. The ASF licenses this file | ||
| # to you under the Apache License, Version 2.0 (the | ||
| # "License"); you may not use this file except in compliance | ||
| # with the License. You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, | ||
| # software distributed under the License is distributed on an | ||
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| # KIND, either express or implied. See the License for the | ||
| # specific language governing permissions and limitations | ||
| # under the License. | ||
| """Utilities for testing external code generation""" | ||
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| import os | ||
| import sys | ||
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| import pytest | ||
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| import tvm | ||
| from tvm import relay, runtime | ||
| from tvm.contrib import utils | ||
| from tests.python.relay.aot.aot_test_utils import AOTTestModel, compile_and_run | ||
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| skip_windows = pytest.mark.skipif(sys.platform == "win32", reason="Skip test on Windows for now") | ||
| skip_micro = pytest.mark.skipif( | ||
| tvm.support.libinfo().get("USE_MICRO", "OFF") != "ON", | ||
| reason="MicroTVM support not enabled. Set USE_MICRO=ON in config.cmake to enable.", | ||
| ) | ||
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| def parametrize_external_codegen_checks(test): | ||
| """Parametrize over the various check_result functions which are available""" | ||
| return pytest.mark.parametrize( | ||
| "check_result", | ||
| [ | ||
| pytest.param(check_aot_executor_result, marks=[skip_windows, skip_micro]), | ||
| pytest.param(check_graph_executor_result, marks=[skip_windows]), | ||
| pytest.param(check_vm_result, marks=[skip_windows]), | ||
| ], | ||
| )(test) | ||
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| def parametrize_external_json_codegen_checks(test): | ||
| """Parametrize over the various check_result functions which are available for JSON""" | ||
| return pytest.mark.parametrize( | ||
| "check_result", | ||
| [ | ||
| pytest.param(check_graph_executor_result, marks=[skip_windows]), | ||
| pytest.param(check_vm_result, marks=[skip_windows]), | ||
| ], | ||
| )(test) | ||
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| def update_lib(lib): | ||
| test_dir = os.path.dirname(os.path.realpath(os.path.expanduser(__file__))) | ||
| source_dir = os.path.join(test_dir, "..", "..", "..") | ||
| contrib_path = os.path.join(source_dir, "src", "runtime", "contrib") | ||
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| kwargs = {} | ||
| kwargs["options"] = ["-O2", "-std=c++14", "-I" + contrib_path] | ||
| tmp_path = utils.tempdir() | ||
| lib_name = "lib.so" | ||
| lib_path = tmp_path.relpath(lib_name) | ||
| lib.export_library(lib_path, fcompile=False, **kwargs) | ||
| lib = tvm.runtime.load_module(lib_path) | ||
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| return lib | ||
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| def check_vm_result(mod, map_inputs, out_shape, result, tol=1e-5, target="llvm", device=tvm.cpu()): | ||
| with tvm.transform.PassContext(opt_level=3, disabled_pass=["AlterOpLayout"]): | ||
| exe = relay.vm.compile(mod, target=target) | ||
| code, lib = exe.save() | ||
| lib = update_lib(lib) | ||
| exe = runtime.vm.Executable.load_exec(code, lib) | ||
| vm = runtime.vm.VirtualMachine(exe, device) | ||
| out = vm.run(**map_inputs) | ||
| tvm.testing.assert_allclose(out.numpy(), result, rtol=tol, atol=tol) | ||
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| def check_graph_executor_result( | ||
| mod, map_inputs, out_shape, result, tol=1e-5, target="llvm", device=tvm.cpu() | ||
| ): | ||
| with tvm.transform.PassContext(opt_level=3, disabled_pass=["AlterOpLayout"]): | ||
| executor_factory = relay.build(mod, target=target) | ||
| lib = update_lib(executor_factory.lib) | ||
| rt_mod = tvm.contrib.graph_executor.create(executor_factory.graph_json, lib, device) | ||
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| for name, data in map_inputs.items(): | ||
| rt_mod.set_input(name, data) | ||
| rt_mod.run() | ||
| out = tvm.nd.empty(out_shape, device=device) | ||
| out = rt_mod.get_output(0, out) | ||
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| tvm.testing.assert_allclose(out.numpy(), result, rtol=tol, atol=tol) | ||
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| def check_aot_executor_result( | ||
| mod, map_inputs, out_shape, result, tol=1e-5, target="llvm", device=tvm.cpu() | ||
| ): | ||
| # Late import to avoid breaking test with USE_MICRO=OFF. | ||
| from aot.aot_test_utils import AOTTestModel, AOT_DEFAULT_RUNNER, compile_and_run | ||
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| interface_api = "packed" | ||
| use_unpacked_api = False | ||
| test_runner = AOT_DEFAULT_RUNNER | ||
| compile_and_run( | ||
| AOTTestModel(module=mod, inputs=map_inputs, outputs=[result]), | ||
| test_runner, | ||
| interface_api, | ||
| use_unpacked_api, | ||
| ) | ||
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| def set_external_func_attr(func, compiler, ext_symbol): | ||
| func = func.with_attr("Primitive", tvm.tir.IntImm("int32", 1)) | ||
| func = func.with_attr("Compiler", compiler) | ||
| func = func.with_attr("global_symbol", ext_symbol) | ||
| return func |