[e2e] add compatible test (#381)

- as title

usage:
```
python main.py  --testdir  your_testcase_dir
```

tests/compatibilty_test/execute.py

@@ -0,0 +1,103 @@
+# Copyright 2022 ByteDance Ltd. and/or its affiliates. All rights reserved.
+# Licensed 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.
+# ==============================================================================
+
+import brt
+from brt.utils import brt_dtype_to_torch_dtype
+
+import torch
+import numpy as np
+import os
+import re
+
+from reporting import TestResult
+
+
+class BRTBackend:
+
+    def __init__(self, device, brt_file_path):
+        _stream = None
+        self.device = None
+        if device == "CPU":
+            self.session = brt.Session(device=device.upper(), )
+            self.device = "cpu"
+            _stream = None
+        else:
+            raise NotImplementedError(
+                f"Compatible test for {device} not implement")
+
+        self.session.load(brt_file_path)
+        self.req = self.session.new_request_context(_stream)
+
+    def _check(self, result, golden, atol=1e-06):
+        return torch.allclose(result, golden, atol=atol)
+
+    def _generate_torch_outputs(self):
+        outputs = []
+        for offset in self.session.get_output_arg_offsets():
+            outputs.append(
+                torch.empty(self.session.get_static_shape(offset),
+                            dtype=brt_dtype_to_torch_dtype(
+                                self.session.get_data_type(offset)),
+                            device=self.device))
+        return outputs
+
+    def compare(self, inputs, goldens):
+        outputs = self._generate_torch_outputs()
+        assert len(self.session.get_input_arg_offsets()) == len(inputs)
+        assert len(self.session.get_output_arg_offsets()) == len(outputs)
+        assert len(outputs) == len(goldens)
+        for offset, arg in zip(self.session.get_input_arg_offsets(), inputs):
+            assert list(self.session.get_static_shape(offset)) == list(
+                arg.shape)
+            self.req.bind_arg(offset, arg.data_ptr())
+        for offset, ret in zip(self.session.get_output_arg_offsets(), outputs):
+            assert list(self.session.get_static_shape(offset)) == list(
+                ret.shape)
+            self.req.bind_arg(offset, ret.data_ptr())
+        self.req.finish_io_binding()
+        self.req.run()
+        self.req.sync()
+        return all(self._check(o, g) for o, g in zip(outputs, goldens))
+
+
+def run_and_check_mlir(target, name, inp_files, out_files, byre_file):
+
+    _device = None
+    if target == "cpu":
+        _device = "CPU"
+
+    brt_backend = BRTBackend(device=_device, brt_file_path=byre_file)
+
+    cmp_res = []
+    for idx, (input_file, target_file) in enumerate(zip(inp_files, out_files)):
+        inp = np.load(input_file, allow_pickle=True)
+        inp = [
+            torch.from_numpy(inp[f]).contiguous().to(_device.lower())
+            for f in inp.files
+        ]
+        tgt = np.load(target_file, allow_pickle=True)
+        tgt = [
+            torch.from_numpy(tgt[f]).contiguous().to(_device.lower())
+            for f in tgt.files
+        ]
+        if brt_backend.compare(inp, tgt):
+            cmp_res.append(TestResult(name + str(idx), numerical_error=None))
+        else:
+            cmp_res.append(
+                TestResult(
+                    name + str(idx),
+                    numerical_error=
+                    f"input is {input_file}, output not match {target_file}"))
+
+    return cmp_res

tests/compatibilty_test/main.py

@@ -0,0 +1,86 @@
+# Copyright 2022 ByteDance Ltd. and/or its affiliates. All rights reserved.
+# Licensed 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.
+# ==============================================================================
+
+#!/usr/bin/python3
+import argparse
+import os
+import sys
+import json
+
+from reporting import report_results
+
+from execute import run_and_check_mlir
+"""
+Usage:
+    This directory implements the code for compatibilty test framework. One should pass a test dir which contains:
+    (1) subdirs for each tese case and json conf file named `testcase.json`
+    (2) byre compilation artifacts named as {model_name}/{model_name}.rt.mlir
+    (3) several inputs and goldens named as inputs.{num}.npz and outputs.{num}.npz
+"""
+
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--testdir",
+        type=str,
+        default=None,
+        help="Directory has test cases",
+    )
+    args = parser.parse_args()
+    return args
+
+
+def run(testdir):
+
+    def extract_name_from_tesrdir(testdir):
+        return os.path.basename(testdir)
+
+    result = []
+    conf_file = os.path.join(testdir, "testcase.json")
+    if not os.path.exists(conf_file):
+        raise RuntimeError(f"test case config file {conf_file} not found")
+    with open(conf_file, "r", encoding='utf-8') as f:
+        json_conf = json.load(f)
+    for target, data in json_conf.items():
+        for byre_version, cases in data.items():
+            for name, files in cases.items():
+                input_files = files["golden_inputs"]
+                input_files = [os.path.join(testdir, f) for f in input_files]
+                golden_files = files["golden_outputs"]
+                golden_files = [os.path.join(testdir, f) for f in golden_files]
+                byre_file = files["brt_entry_file"]
+                byre_file = os.path.join(testdir, byre_file)
+                if len(input_files) != len(golden_files):
+                    raise RuntimeError(
+                        f"num of inouts({len(input_files)}) and goldens({len(golden_files)}) not eq in {name}"
+                    )
+                if not os.path.exists(byre_file):
+                    raise RuntimeError(f"byre file{byre_file} not found")
+                result += run_and_check_mlir(target, name, input_files,
+                                             golden_files, byre_file)
+    return result
+
+
+def main():
+    args = parse_args()
+
+    results = run(args.testdir)
+
+    failed = report_results(results)
+    sys.exit(1 if failed else 0)
+
+
+if __name__ == "__main__":
+    main()

tests/compatibilty_test/reporting.py

@@ -0,0 +1,45 @@
+# Copyright 2022 ByteDance Ltd. and/or its affiliates. All rights reserved.
+# Licensed 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.
+# ==============================================================================
+
+from typing import NamedTuple, Optional, List
+
+
+class TestResult(NamedTuple):
+    unique_name: str
+    numerical_error: Optional[str]
+
+
+def report_results(results: List[TestResult]):
+    fail_case = []
+    pass_case = []
+    for result in results:
+        if result.numerical_error is not None:
+            fail_case.append([
+                result.unique_name, "numerical failed: " + result.unique_name +
+                "\n" + result.numerical_error
+            ])
+        else:
+            pass_case.append(result)
+    pass_case.sort(key=lambda x: x.unique_name)
+    fail_case.sort(key=lambda x: x[0])
+
+    print(f"\n****** PASS tests - {len(pass_case)} tests")
+    for test in pass_case:
+        print(test.unique_name, " --- PASS")
+    for test in fail_case:
+        print(test[1])
+    print(f"\n****** FAILED tests - {len(fail_case)} tests")
+    for test in fail_case:
+        print(test[0])
+    return len(fail_case) > 0