1 //===- MachinePostDominators.cpp -Machine Post Dominator Calculation ------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements simple dominator construction algorithms for finding
11 // post dominators on machine functions.
13 //===----------------------------------------------------------------------===//
15 #include "llvm/CodeGen/MachinePostDominators.h"
20 template class DominatorTreeBase<MachineBasicBlock, true>; // PostDomTreeBase
23 char MachinePostDominatorTree::ID = 0;
25 //declare initializeMachinePostDominatorTreePass
26 INITIALIZE_PASS(MachinePostDominatorTree, "machinepostdomtree",
27 "MachinePostDominator Tree Construction", true, true)
29 MachinePostDominatorTree::MachinePostDominatorTree() : MachineFunctionPass(ID) {
30 initializeMachinePostDominatorTreePass(*PassRegistry::getPassRegistry());
31 DT = new PostDomTreeBase<MachineBasicBlock>();
35 MachinePostDominatorTree::createMachinePostDominatorTreePass() {
36 return new MachinePostDominatorTree();
40 MachinePostDominatorTree::runOnMachineFunction(MachineFunction &F) {
45 MachinePostDominatorTree::~MachinePostDominatorTree() {
50 MachinePostDominatorTree::getAnalysisUsage(AnalysisUsage &AU) const {
52 MachineFunctionPass::getAnalysisUsage(AU);
56 MachinePostDominatorTree::print(llvm::raw_ostream &OS, const Module *M) const {