| 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 |