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06d5a1641d
All of these existed because MSVC 2013 was unable to synthesize default move ctors. We recently dropped support for it so all that error-prone boilerplate can go. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284721 91177308-0d34-0410-b5e6-96231b3b80d8
103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
//=- llvm/Analysis/PostDominators.h - Post Dominator Calculation-*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file exposes interfaces to post dominance information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_POSTDOMINATORS_H
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#define LLVM_ANALYSIS_POSTDOMINATORS_H
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#include "llvm/IR/Dominators.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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/// PostDominatorTree Class - Concrete subclass of DominatorTree that is used to
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/// compute the post-dominator tree.
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///
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struct PostDominatorTree : public DominatorTreeBase<BasicBlock> {
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typedef DominatorTreeBase<BasicBlock> Base;
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PostDominatorTree() : DominatorTreeBase<BasicBlock>(true) {}
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};
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/// \brief Analysis pass which computes a \c PostDominatorTree.
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class PostDominatorTreeAnalysis
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: public AnalysisInfoMixin<PostDominatorTreeAnalysis> {
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friend AnalysisInfoMixin<PostDominatorTreeAnalysis>;
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static char PassID;
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public:
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/// \brief Provide the result typedef for this analysis pass.
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typedef PostDominatorTree Result;
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/// \brief Run the analysis pass over a function and produce a post dominator
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/// tree.
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PostDominatorTree run(Function &F, FunctionAnalysisManager &);
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};
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/// \brief Printer pass for the \c PostDominatorTree.
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class PostDominatorTreePrinterPass
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: public PassInfoMixin<PostDominatorTreePrinterPass> {
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raw_ostream &OS;
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public:
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explicit PostDominatorTreePrinterPass(raw_ostream &OS);
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
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};
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struct PostDominatorTreeWrapperPass : public FunctionPass {
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static char ID; // Pass identification, replacement for typeid
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PostDominatorTree DT;
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PostDominatorTreeWrapperPass() : FunctionPass(ID) {
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initializePostDominatorTreeWrapperPassPass(*PassRegistry::getPassRegistry());
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}
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PostDominatorTree &getPostDomTree() { return DT; }
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const PostDominatorTree &getPostDomTree() const { return DT; }
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bool runOnFunction(Function &F) override;
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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void releaseMemory() override {
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DT.releaseMemory();
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}
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void print(raw_ostream &OS, const Module*) const override;
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};
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FunctionPass* createPostDomTree();
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template <> struct GraphTraits<PostDominatorTree*>
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: public GraphTraits<DomTreeNode*> {
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static NodeRef getEntryNode(PostDominatorTree *DT) {
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return DT->getRootNode();
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}
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static nodes_iterator nodes_begin(PostDominatorTree *N) {
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if (getEntryNode(N))
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return df_begin(getEntryNode(N));
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else
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return df_end(getEntryNode(N));
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}
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static nodes_iterator nodes_end(PostDominatorTree *N) {
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return df_end(getEntryNode(N));
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}
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};
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} // End llvm namespace
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#endif
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