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https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213456 91177308-0d34-0410-b5e6-96231b3b80d8
184 lines
5.8 KiB
C++
184 lines
5.8 KiB
C++
//===- llvm/CodeGen/MachineRegionInfo.h -------------------------*- 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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#ifndef LLVM_CODEGEN_MACHINEREGIONINFO_H
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#define LLVM_CODEGEN_MACHINEREGIONINFO_H
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#include "llvm/Analysis/RegionInfo.h"
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#include "llvm/Analysis/RegionIterator.h"
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#include "llvm/CodeGen/MachineDominanceFrontier.h"
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#include "llvm/CodeGen/MachineDominators.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/MachineLoopInfo.h"
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namespace llvm {
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class MachineDominatorTree;
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struct MachinePostDominatorTree;
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class MachineRegion;
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class MachineRegionNode;
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class MachineRegionInfo;
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template<>
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struct RegionTraits<MachineFunction> {
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typedef MachineFunction FuncT;
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typedef MachineBasicBlock BlockT;
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typedef MachineRegion RegionT;
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typedef MachineRegionNode RegionNodeT;
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typedef MachineRegionInfo RegionInfoT;
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typedef MachineDominatorTree DomTreeT;
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typedef MachineDomTreeNode DomTreeNodeT;
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typedef MachinePostDominatorTree PostDomTreeT;
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typedef MachineDominanceFrontier DomFrontierT;
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typedef MachineInstr InstT;
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typedef MachineLoop LoopT;
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typedef MachineLoopInfo LoopInfoT;
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static unsigned getNumSuccessors(MachineBasicBlock *BB) {
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return BB->succ_size();
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}
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};
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class MachineRegionNode : public RegionNodeBase<RegionTraits<MachineFunction>> {
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public:
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inline MachineRegionNode(MachineRegion *Parent,
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MachineBasicBlock *Entry,
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bool isSubRegion = false)
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: RegionNodeBase<RegionTraits<MachineFunction>>(Parent, Entry, isSubRegion) {
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}
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~MachineRegionNode() { }
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bool operator==(const MachineRegion &RN) const {
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return this == reinterpret_cast<const MachineRegionNode*>(&RN);
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}
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};
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class MachineRegion : public RegionBase<RegionTraits<MachineFunction>> {
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public:
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MachineRegion(MachineBasicBlock *Entry, MachineBasicBlock *Exit,
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MachineRegionInfo* RI,
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MachineDominatorTree *DT, MachineRegion *Parent = nullptr);
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~MachineRegion();
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bool operator==(const MachineRegionNode &RN) const {
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return &RN == reinterpret_cast<const MachineRegionNode*>(this);
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}
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};
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class MachineRegionInfo : public RegionInfoBase<RegionTraits<MachineFunction>> {
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public:
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explicit MachineRegionInfo();
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virtual ~MachineRegionInfo();
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// updateStatistics - Update statistic about created regions.
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void updateStatistics(MachineRegion *R) final;
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void recalculate(MachineFunction &F,
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MachineDominatorTree *DT,
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MachinePostDominatorTree *PDT,
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MachineDominanceFrontier *DF);
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};
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class MachineRegionInfoPass : public MachineFunctionPass {
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MachineRegionInfo RI;
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public:
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static char ID;
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explicit MachineRegionInfoPass();
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~MachineRegionInfoPass();
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MachineRegionInfo &getRegionInfo() {
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return RI;
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}
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const MachineRegionInfo &getRegionInfo() const {
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return RI;
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}
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/// @name MachineFunctionPass interface
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//@{
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bool runOnMachineFunction(MachineFunction &F) override;
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void releaseMemory() override;
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void verifyAnalysis() const override;
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void getAnalysisUsage(AnalysisUsage &AU) const override;
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void print(raw_ostream &OS, const Module *) const override;
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void dump() const;
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//@}
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};
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template <>
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template <>
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inline MachineBasicBlock* RegionNodeBase<RegionTraits<MachineFunction>>::getNodeAs<MachineBasicBlock>() const {
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assert(!isSubRegion() && "This is not a MachineBasicBlock RegionNode!");
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return getEntry();
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}
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template<>
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template<>
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inline MachineRegion* RegionNodeBase<RegionTraits<MachineFunction>>::getNodeAs<MachineRegion>() const {
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assert(isSubRegion() && "This is not a subregion RegionNode!");
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auto Unconst = const_cast<RegionNodeBase<RegionTraits<MachineFunction>>*>(this);
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return reinterpret_cast<MachineRegion*>(Unconst);
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}
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RegionNodeGraphTraits(MachineRegionNode, MachineBasicBlock, MachineRegion);
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RegionNodeGraphTraits(const MachineRegionNode, MachineBasicBlock, MachineRegion);
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RegionGraphTraits(MachineRegion, MachineRegionNode);
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RegionGraphTraits(const MachineRegion, const MachineRegionNode);
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template <> struct GraphTraits<MachineRegionInfo*>
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: public GraphTraits<FlatIt<MachineRegionNode*> > {
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typedef df_iterator<NodeType*, SmallPtrSet<NodeType*, 8>, false,
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GraphTraits<FlatIt<NodeType*> > > nodes_iterator;
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static NodeType *getEntryNode(MachineRegionInfo *RI) {
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return GraphTraits<FlatIt<MachineRegion*> >::getEntryNode(RI->getTopLevelRegion());
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}
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static nodes_iterator nodes_begin(MachineRegionInfo* RI) {
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return nodes_iterator::begin(getEntryNode(RI));
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}
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static nodes_iterator nodes_end(MachineRegionInfo *RI) {
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return nodes_iterator::end(getEntryNode(RI));
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}
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};
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template <> struct GraphTraits<MachineRegionInfoPass*>
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: public GraphTraits<MachineRegionInfo *> {
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typedef df_iterator<NodeType*, SmallPtrSet<NodeType*, 8>, false,
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GraphTraits<FlatIt<NodeType*> > > nodes_iterator;
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static NodeType *getEntryNode(MachineRegionInfoPass *RI) {
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return GraphTraits<MachineRegionInfo*>::getEntryNode(&RI->getRegionInfo());
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}
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static nodes_iterator nodes_begin(MachineRegionInfoPass* RI) {
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return GraphTraits<MachineRegionInfo*>::nodes_begin(&RI->getRegionInfo());
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}
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static nodes_iterator nodes_end(MachineRegionInfoPass *RI) {
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return GraphTraits<MachineRegionInfo*>::nodes_end(&RI->getRegionInfo());
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}
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};
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EXTERN_TEMPLATE_INSTANTIATION(class RegionBase<RegionTraits<MachineFunction>>);
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EXTERN_TEMPLATE_INSTANTIATION(class RegionNodeBase<RegionTraits<MachineFunction>>);
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EXTERN_TEMPLATE_INSTANTIATION(class RegionInfoBase<RegionTraits<MachineFunction>>);
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}
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#endif
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