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//=- llvm/CodeGen/MachineDominators.h ----------------------------*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file exposes interfaces to post dominance information for
// target-specific code.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_MACHINEPOSTDOMINATORS_H
#define LLVM_CODEGEN_MACHINEPOSTDOMINATORS_H
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
namespace llvm {
///
/// PostDominatorTree Class - Concrete subclass of DominatorTree that is used
/// to compute the post-dominator tree.
///
struct MachinePostDominatorTree : public MachineFunctionPass {
private:
DominatorTreeBase<MachineBasicBlock> *DT;
public:
static char ID;
MachinePostDominatorTree();
~MachinePostDominatorTree();
FunctionPass *createMachinePostDominatorTreePass();
const std::vector<MachineBasicBlock *> &getRoots() const {
return DT->getRoots();
}
MachineDomTreeNode *getRootNode() const {
return DT->getRootNode();
}
MachineDomTreeNode *operator[](MachineBasicBlock *BB) const {
return DT->getNode(BB);
}
MachineDomTreeNode *getNode(MachineBasicBlock *BB) const {
return DT->getNode(BB);
}
bool dominates(const MachineDomTreeNode *A,
const MachineDomTreeNode *B) const {
return DT->dominates(A, B);
}
bool dominates(const MachineBasicBlock *A, const MachineBasicBlock *B) const {
return DT->dominates(A, B);
}
bool properlyDominates(const MachineDomTreeNode *A,
const MachineDomTreeNode *B) const {
return DT->properlyDominates(A, B);
}
bool properlyDominates(const MachineBasicBlock *A,
const MachineBasicBlock *B) const {
return DT->properlyDominates(A, B);
}
MachineBasicBlock *findNearestCommonDominator(MachineBasicBlock *A,
MachineBasicBlock *B) {
return DT->findNearestCommonDominator(A, B);
}
bool runOnMachineFunction(MachineFunction &MF) override;
void getAnalysisUsage(AnalysisUsage &AU) const override;
void print(llvm::raw_ostream &OS, const Module *M = nullptr) const override;
};
} //end of namespace llvm
#endif
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