1 //===- PostDominators.cpp - Post-Dominator Calculation --------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file implements the post-dominator construction algorithms. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/Analysis/PostDominators.h" 15 #include "llvm/ADT/DepthFirstIterator.h" 16 #include "llvm/ADT/SetOperations.h" 17 #include "llvm/IR/CFG.h" 18 #include "llvm/IR/Instructions.h" 19 #include "llvm/Support/Debug.h" 20 #include "llvm/Support/GenericDomTreeConstruction.h" 21 using namespace llvm; 22 23 #define DEBUG_TYPE "postdomtree" 24 25 //===----------------------------------------------------------------------===// 26 // PostDominatorTree Implementation 27 //===----------------------------------------------------------------------===// 28 29 char PostDominatorTree::ID = 0; 30 INITIALIZE_PASS(PostDominatorTree, "postdomtree", 31 "Post-Dominator Tree Construction", true, true) 32 33 bool PostDominatorTree::runOnFunction(Function &F) { 34 DT->recalculate(F); 35 return false; 36 } 37 38 PostDominatorTree::~PostDominatorTree() { 39 delete DT; 40 } 41 42 void PostDominatorTree::print(raw_ostream &OS, const Module *) const { 43 DT->print(OS); 44 } 45 46 47 FunctionPass* llvm::createPostDomTree() { 48 return new PostDominatorTree(); 49 } 50 51
