chore: import upstream snapshot with attribution

tests/python/relax/test_frontend_nn_mutator.py

@@ -0,0 +1,322 @@
+# 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.
+
+from typing import Any
+
+import tvm
+from tvm.relax.frontend import nn
+
+
+def test_mutator_naming_basic():
+    class Module0(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.param0 = nn.Parameter((32, 128), "float64")
+
+    class Module1(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.mod0 = Module0()
+            self.param1 = nn.Parameter((32, 128), "float32")
+
+    class Module2(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.mod1 = Module1()
+            self.param2 = nn.Parameter((32, 128), "float16")
+
+    class Module3(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.mod2 = Module2()
+            self.param3 = nn.Parameter((32, 128), "float8")
+
+    class Mutator(nn.Mutator):
+        def visit_param(self, name: str, node: nn.Parameter) -> Any:
+            if node.dtype == "float8":
+                assert name == "mod3.param3"
+                return node
+            elif node.dtype == "float16":
+                assert name == "mod3.mod2.param2"
+                return node
+            elif node.dtype == "float32":
+                assert name == "mod3.mod2.mod1.param1"
+                return node
+            elif node.dtype == "float64":
+                assert name == "mod3.mod2.mod1.mod0.param0"
+                return node
+
+    mod3 = Module3()
+    mutator = Mutator()
+    mutator.visit("mod3", mod3)
+
+
+def test_mutator_naming_moduledict():
+    class Module(nn.Module):
+        def __init__(self, dtype) -> None:
+            super().__init__()
+            self.param = nn.Parameter((32, 128), dtype)
+
+    class Mutator(nn.Mutator):
+        def visit_param(self, name: str, node: nn.Parameter) -> Any:
+            if node.dtype == "float64":
+                assert name == "mod_dict.k0.0.param"
+                return node
+            elif node.dtype == "float32":
+                assert name == "mod_dict.k0.1.param"
+                return node
+            elif node.dtype == "float16":
+                assert name == "mod_dict.k1.0.param"
+                return node
+            elif node.dtype == "float8":
+                assert name == "mod_dict.k1.1.param"
+                return node
+
+    mod_dict = nn.ModuleDict(
+        {
+            "k0": nn.ModuleList([Module("float64"), Module("float32")]),
+            "k1": nn.ModuleList([Module("float16"), Module("float8")]),
+        }
+    )
+    mutator = Mutator()
+    mutator.visit("mod_dict", mod_dict)
+
+
+def test_mutator_naming_modulelist():
+    class Module(nn.Module):
+        def __init__(self, dtype) -> None:
+            super().__init__()
+            self.param = nn.Parameter((32, 128), dtype)
+
+    class Mutator(nn.Mutator):
+        def visit_param(self, name: str, node: nn.Parameter) -> Any:
+            if node.dtype == "float64":
+                assert name == "mod_list.0.0.param"
+                return node
+            elif node.dtype == "float32":
+                assert name == "mod_list.0.1.param"
+                return node
+            elif node.dtype == "float16":
+                assert name == "mod_list.1.0.param"
+                return node
+            elif node.dtype == "float8":
+                assert name == "mod_list.1.1.param"
+                return node
+
+    mod_list = nn.ModuleList(
+        [
+            nn.ModuleList([Module("float64"), Module("float32")]),
+            nn.ModuleList([Module("float16"), Module("float8")]),
+        ]
+    )
+    mutator = Mutator()
+    mutator.visit("mod_list", mod_list)
+
+
+def test_mutator_naming_parameter_containers():
+    class Module(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.param_list = nn.ParameterList(
+                [
+                    nn.Parameter((32, 128), "float64"),
+                    nn.Parameter((32, 128), "float32"),
+                ]
+            )
+            self.param_dict = nn.ParameterDict(
+                {
+                    "k0": nn.Parameter((32, 128), "float16"),
+                    "k1": nn.Parameter((32, 128), "float8"),
+                }
+            )
+
+    seen = []
+
+    class Mutator(nn.Mutator):
+        def visit_param(self, name: str, node: nn.Parameter) -> Any:
+            seen.append((name, node.dtype))
+            return node
+
+    module = Module()
+    mutator = Mutator()
+    mutator.visit("", module)
+
+    assert seen == [
+        ("param_list.0", "float64"),
+        ("param_list.1", "float32"),
+        ("param_dict.k0", "float16"),
+        ("param_dict.k1", "float8"),
+    ]
+
+
+def test_mutator_module():
+    class SubModule1(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+
+    class SubModule2(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+
+    class Module(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.mod = SubModule1()
+
+    class Mutator(nn.Mutator):
+        def visit_module(self, name: str, node: nn.Module) -> Any:
+            if isinstance(node, SubModule1):
+                return SubModule2()
+            else:
+                return node
+
+    mutator = Mutator()
+    module = Module()
+    assert isinstance(module.mod, SubModule1)
+    module = mutator.visit("", module)
+    assert isinstance(module.mod, SubModule2)
+
+
+def test_mutator_moduledict():
+    class Module1(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+
+    class Module2(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+
+    class Module3(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+
+    class Mutator(nn.Mutator):
+        def visit_module(self, name: str, node: nn.Module) -> Any:
+            if isinstance(node, Module3):
+                return Module1()
+            else:
+                return node
+
+    mutator = Mutator()
+    module_dict = nn.ModuleDict({"k0": Module1(), "k1": Module2(), "k2": Module3()})
+    assert isinstance(module_dict["k0"], Module1)
+    assert isinstance(module_dict["k1"], Module2)
+    assert isinstance(module_dict["k2"], Module3)
+    module_dict = mutator.visit("", module_dict)
+    assert isinstance(module_dict["k0"], Module1)
+    assert isinstance(module_dict["k1"], Module2)
+    assert isinstance(module_dict["k2"], Module1)
+
+
+def test_mutator_modulelist():
+    class Module1(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+
+    class Module2(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+
+    class Module3(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+
+    class Mutator(nn.Mutator):
+        def visit_module(self, name: str, node: nn.Module) -> Any:
+            if isinstance(node, Module3):
+                return Module1()
+            else:
+                return node
+
+    mutator = Mutator()
+    module_list = nn.ModuleList([Module1(), Module2(), Module3()])
+    assert isinstance(module_list[0], Module1)
+    assert isinstance(module_list[1], Module2)
+    assert isinstance(module_list[2], Module3)
+    module_list = mutator.visit("", module_list)
+    assert isinstance(module_list[0], Module1)
+    assert isinstance(module_list[1], Module2)
+    assert isinstance(module_list[2], Module1)
+
+
+def test_mutator_effect():
+    class Effect1(nn.Effect):
+        pass
+
+    class Effect2(nn.Effect):
+        pass
+
+    class Module(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.effect = Effect1()
+
+    class Mutator(nn.Mutator):
+        def visit_effect(self, name: str, node: nn.Effect) -> Any:
+            if isinstance(node, Effect1):
+                return Effect2()
+
+    mutator = Mutator()
+    module = Module()
+    assert isinstance(module.effect, Effect1)
+    module = mutator.visit("", module)
+    assert isinstance(module.effect, Effect2)
+
+
+def test_mutator_param():
+    class Module(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.weight = nn.Parameter((128, 64), "float16")
+
+    class Mutator(nn.Mutator):
+        def visit_param(self, name: str, node: nn.Parameter) -> Any:
+            if node.dtype == "float16":
+                return nn.Parameter(node.shape, "float32")
+
+    mutator = Mutator()
+    module = Module()
+    assert module.weight.dtype == "float16"
+    module = mutator.visit("", module)
+    assert module.weight.dtype == "float32"
+
+
+def test_mutator_recursively():
+    class SubModule(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.weight = nn.Parameter((128, 64), "float16")
+
+    class Module(nn.Module):
+        def __init__(self) -> None:
+            super().__init__()
+            self.mod = SubModule()
+
+    class Mutator(nn.Mutator):
+        def visit_param(self, name: str, node: nn.Parameter) -> Any:
+            if node.dtype == "float16":
+                return nn.Parameter(node.shape, "float32")
+
+    mutator = Mutator()
+    module = Module()
+    assert module.mod.weight.dtype == "float16"
+    module = mutator.visit("", module)
+    assert module.mod.weight.dtype == "float32"
+
+
+if __name__ == "__main__":
+    tvm.testing.main()