1 | /* |
---|---|
2 | * Licensed to the Apache Software Foundation (ASF) under one |
3 | * or more contributor license agreements. See the NOTICE file |
4 | * distributed with this work for additional information |
5 | * regarding copyright ownership. The ASF licenses this file |
6 | * to you under the Apache License, Version 2.0 (the |
7 | * "License"); you may not use this file except in compliance |
8 | * with the License. You may obtain a copy of the License at |
9 | * |
10 | * http://www.apache.org/licenses/LICENSE-2.0 |
11 | * |
12 | * Unless required by applicable law or agreed to in writing, |
13 | * software distributed under the License is distributed on an |
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
15 | * KIND, either express or implied. See the License for the |
16 | * specific language governing permissions and limitations |
17 | * under the License. |
18 | */ |
19 | #include <tvm/ir/module.h> |
20 | #include <tvm/runtime/registry.h> |
21 | #include <tvm/script/ir_builder/base.h> |
22 | |
23 | namespace tvm { |
24 | namespace script { |
25 | namespace ir_builder { |
26 | |
27 | void IRBuilderFrameNode::EnterWithScope() { |
28 | IRBuilder::Current()->frames.push_back(GetRef<IRBuilderFrame>(this)); |
29 | } |
30 | |
31 | void IRBuilderFrameNode::ExitWithScope() { |
32 | for (auto it = callbacks.rbegin(); it != callbacks.rend(); ++it) { |
33 | (*it)(); |
34 | } |
35 | this->callbacks.clear(); |
36 | IRBuilder::Current()->frames.pop_back(); |
37 | } |
38 | |
39 | void IRBuilderFrameNode::AddCallback(runtime::TypedPackedFunc<void()> callback) { |
40 | if (IRBuilder::Current()->frames.empty()) { |
41 | LOG(FATAL) << "ValueError: No frames in Builder to add callback"; |
42 | } |
43 | IRBuilder::Current()->frames.back()->callbacks.push_back(callback); |
44 | } |
45 | |
46 | IRBuilder::IRBuilder() { |
47 | ObjectPtr<IRBuilderNode> n = make_object<IRBuilderNode>(); |
48 | n->frames.clear(); |
49 | n->result = NullOpt; |
50 | data_ = n; |
51 | } |
52 | |
53 | std::vector<IRBuilder>* ThreadLocalBuilderStack() { |
54 | thread_local std::vector<IRBuilder> stack; |
55 | return &stack; |
56 | } |
57 | |
58 | void IRBuilder::EnterWithScope() { |
59 | IRBuilderNode* n = this->get(); |
60 | CHECK(n->frames.empty()) << "ValueError: There are frame(s) left in the builder: " |
61 | << n->frames.size() |
62 | << ". Please use a fresh new builder every time building IRs"; |
63 | n->result = NullOpt; |
64 | std::vector<IRBuilder>* stack = ThreadLocalBuilderStack(); |
65 | stack->push_back(*this); |
66 | } |
67 | |
68 | void IRBuilder::ExitWithScope() { |
69 | std::vector<IRBuilder>* stack = ThreadLocalBuilderStack(); |
70 | ICHECK(!stack->empty()); |
71 | stack->pop_back(); |
72 | } |
73 | |
74 | IRBuilder IRBuilder::Current() { |
75 | std::vector<IRBuilder>* stack = ThreadLocalBuilderStack(); |
76 | CHECK(!stack->empty()) << "ValueError: No builder in current scope"; |
77 | return stack->back(); |
78 | } |
79 | |
80 | namespace details { |
81 | |
82 | Namer::FType& Namer::vtable() { |
83 | static FType inst; |
84 | return inst; |
85 | } |
86 | |
87 | void Namer::Name(ObjectRef node, String name) { |
88 | static const FType& f = vtable(); |
89 | CHECK(node.defined()) << "ValueError: Cannot name nullptr with: "<< name; |
90 | CHECK(f.can_dispatch(node)) << "ValueError: Do not know how to name type \"" |
91 | << node->GetTypeKey(); |
92 | f(node, name); |
93 | } |
94 | |
95 | } // namespace details |
96 | |
97 | TVM_REGISTER_NODE_TYPE(IRBuilderFrameNode); |
98 | TVM_REGISTER_NODE_TYPE(IRBuilderNode); |
99 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilderFrameEnter") |
100 | .set_body_method<IRBuilderFrame>(&IRBuilderFrameNode::EnterWithScope); |
101 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilderFrameExit") |
102 | .set_body_method<IRBuilderFrame>(&IRBuilderFrameNode::ExitWithScope); |
103 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilderFrameAddCallback") |
104 | .set_body_method<IRBuilderFrame>(&IRBuilderFrameNode::AddCallback); |
105 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilder").set_body_typed([]() { return IRBuilder(); }); |
106 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilderEnter").set_body_method(&IRBuilder::EnterWithScope); |
107 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilderExit").set_body_method(&IRBuilder::ExitWithScope); |
108 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilderCurrent").set_body_typed(IRBuilder::Current); |
109 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilderGet") |
110 | .set_body_method<IRBuilder>(&IRBuilderNode::Get<ObjectRef>); |
111 | TVM_REGISTER_GLOBAL("script.ir_builder.IRBuilderName").set_body_typed(IRBuilder::Name<ObjectRef>); |
112 | |
113 | } // namespace ir_builder |
114 | } // namespace script |
115 | } // namespace tvm |
116 |