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 #define DEBUG_TYPE "postdomtree" 15 16 #include "llvm/Analysis/PostDominators.h" 17 #include "llvm/Instructions.h" 18 #include "llvm/Support/CFG.h" 19 #include "llvm/Support/Debug.h" 20 #include "llvm/ADT/DepthFirstIterator.h" 21 #include "llvm/ADT/SetOperations.h" 22 #include "llvm/Assembly/Writer.h" 23 #include "llvm/Analysis/DominatorInternals.h" 24 using namespace llvm; 25 26 //===----------------------------------------------------------------------===// 27 // PostDominatorTree Implementation 28 //===----------------------------------------------------------------------===// 29 30 char PostDominatorTree::ID = 0; 31 INITIALIZE_PASS(PostDominatorTree, "postdomtree", 32 "Post-Dominator Tree Construction", true, true) 33 34 bool PostDominatorTree::runOnFunction(Function &F) { 35 DT->recalculate(F); 36 return false; 37 } 38 39 PostDominatorTree::~PostDominatorTree() { 40 delete DT; 41 } 42 43 void PostDominatorTree::print(raw_ostream &OS, const Module *) const { 44 DT->print(OS); 45 } 46 47 48 FunctionPass* llvm::createPostDomTree() { 49 return new PostDominatorTree(); 50 } 51 52
