1 | //===- llvm/CodeGen/RegAllocRegistry.h --------------------------*- C++ -*-===// |
---|---|
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // This file contains the implementation for register allocator function |
10 | // pass registry (RegisterRegAlloc). |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
14 | #ifndef LLVM_CODEGEN_REGALLOCREGISTRY_H |
15 | #define LLVM_CODEGEN_REGALLOCREGISTRY_H |
16 | |
17 | #include "llvm/CodeGen/RegAllocCommon.h" |
18 | #include "llvm/CodeGen/MachinePassRegistry.h" |
19 | |
20 | namespace llvm { |
21 | |
22 | class FunctionPass; |
23 | |
24 | //===----------------------------------------------------------------------===// |
25 | /// |
26 | /// RegisterRegAllocBase class - Track the registration of register allocators. |
27 | /// |
28 | //===----------------------------------------------------------------------===// |
29 | template <class SubClass> |
30 | class RegisterRegAllocBase : public MachinePassRegistryNode<FunctionPass *(*)()> { |
31 | public: |
32 | using FunctionPassCtor = FunctionPass *(*)(); |
33 | |
34 | static MachinePassRegistry<FunctionPassCtor> Registry; |
35 | |
36 | RegisterRegAllocBase(const char *N, const char *D, FunctionPassCtor C) |
37 | : MachinePassRegistryNode(N, D, C) { |
38 | Registry.Add(Node: this); |
39 | } |
40 | |
41 | ~RegisterRegAllocBase() { Registry.Remove(Node: this); } |
42 | |
43 | // Accessors. |
44 | SubClass *getNext() const { |
45 | return static_cast<SubClass *>(MachinePassRegistryNode::getNext()); |
46 | } |
47 | |
48 | static SubClass *getList() { |
49 | return static_cast<SubClass *>(Registry.getList()); |
50 | } |
51 | |
52 | static FunctionPassCtor getDefault() { return Registry.getDefault(); } |
53 | |
54 | static void setDefault(FunctionPassCtor C) { Registry.setDefault(C); } |
55 | |
56 | static void setListener(MachinePassRegistryListener<FunctionPassCtor> *L) { |
57 | Registry.setListener(L); |
58 | } |
59 | }; |
60 | |
61 | class RegisterRegAlloc : public RegisterRegAllocBase<RegisterRegAlloc> { |
62 | public: |
63 | RegisterRegAlloc(const char *N, const char *D, FunctionPassCtor C) |
64 | : RegisterRegAllocBase(N, D, C) {} |
65 | }; |
66 | |
67 | /// RegisterRegAlloc's global Registry tracks allocator registration. |
68 | template <class T> |
69 | MachinePassRegistry<typename RegisterRegAllocBase<T>::FunctionPassCtor> |
70 | RegisterRegAllocBase<T>::Registry; |
71 | |
72 | } // end namespace llvm |
73 | |
74 | #endif // LLVM_CODEGEN_REGALLOCREGISTRY_H |
75 |