1 //===- llvm/CodeGen/MachineDominanceFrontier.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 #ifndef LLVM_CODEGEN_MACHINEDOMINANCEFRONTIER_H
10 #define LLVM_CODEGEN_MACHINEDOMINANCEFRONTIER_H
11 
12 #include "llvm/Analysis/DominanceFrontier.h"
13 #include "llvm/Analysis/DominanceFrontierImpl.h"
14 #include "llvm/CodeGen/MachineBasicBlock.h"
15 #include "llvm/CodeGen/MachineFunctionPass.h"
16 #include "llvm/Support/GenericDomTree.h"
17 
18 namespace llvm {
19 
20 class MachineDominanceFrontier : public MachineFunctionPass {
21   ForwardDominanceFrontierBase<MachineBasicBlock> Base;
22 
23 public:
24  using DomTreeT = DomTreeBase<MachineBasicBlock>;
25  using DomTreeNodeT = DomTreeNodeBase<MachineBasicBlock>;
26  using DomSetType = DominanceFrontierBase<MachineBasicBlock, false>::DomSetType;
27  using iterator = DominanceFrontierBase<MachineBasicBlock, false>::iterator;
28  using const_iterator =
29      DominanceFrontierBase<MachineBasicBlock, false>::const_iterator;
30 
31  MachineDominanceFrontier(const MachineDominanceFrontier &) = delete;
32  MachineDominanceFrontier &operator=(const MachineDominanceFrontier &) = delete;
33 
34  static char ID;
35 
36  MachineDominanceFrontier();
37 
getBase()38  ForwardDominanceFrontierBase<MachineBasicBlock> &getBase() { return Base; }
39 
getRoots()40  const SmallVectorImpl<MachineBasicBlock *> &getRoots() const {
41    return Base.getRoots();
42   }
43 
getRoot()44   MachineBasicBlock *getRoot() const {
45     return Base.getRoot();
46   }
47 
isPostDominator()48   bool isPostDominator() const {
49     return Base.isPostDominator();
50   }
51 
begin()52   iterator begin() {
53     return Base.begin();
54   }
55 
begin()56   const_iterator begin() const {
57     return Base.begin();
58   }
59 
end()60   iterator end() {
61     return Base.end();
62   }
63 
end()64   const_iterator end() const {
65     return Base.end();
66   }
67 
find(MachineBasicBlock * B)68   iterator find(MachineBasicBlock *B) {
69     return Base.find(B);
70   }
71 
find(MachineBasicBlock * B)72   const_iterator find(MachineBasicBlock *B) const {
73     return Base.find(B);
74   }
75 
addBasicBlock(MachineBasicBlock * BB,const DomSetType & frontier)76   iterator addBasicBlock(MachineBasicBlock *BB, const DomSetType &frontier) {
77     return Base.addBasicBlock(BB, frontier);
78   }
79 
removeBlock(MachineBasicBlock * BB)80   void removeBlock(MachineBasicBlock *BB) {
81     return Base.removeBlock(BB);
82   }
83 
addToFrontier(iterator I,MachineBasicBlock * Node)84   void addToFrontier(iterator I, MachineBasicBlock *Node) {
85     return Base.addToFrontier(I, Node);
86   }
87 
removeFromFrontier(iterator I,MachineBasicBlock * Node)88   void removeFromFrontier(iterator I, MachineBasicBlock *Node) {
89     return Base.removeFromFrontier(I, Node);
90   }
91 
compareDomSet(DomSetType & DS1,const DomSetType & DS2)92   bool compareDomSet(DomSetType &DS1, const DomSetType &DS2) const {
93     return Base.compareDomSet(DS1, DS2);
94   }
95 
compare(DominanceFrontierBase<MachineBasicBlock,false> & Other)96   bool compare(DominanceFrontierBase<MachineBasicBlock, false> &Other) const {
97     return Base.compare(Other);
98   }
99 
100   bool runOnMachineFunction(MachineFunction &F) override;
101 
102   void releaseMemory() override;
103 
104   void getAnalysisUsage(AnalysisUsage &AU) const override;
105 };
106 
107 } // end namespace llvm
108 
109 #endif // LLVM_CODEGEN_MACHINEDOMINANCEFRONTIER_H
110