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7838818ad7
Implement `uselistorder` and `uselistorder_bb` assembly directives, which allow the use-list order to be recovered when round-tripping to assembly. This is the bulk of PR20515. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216025 91177308-0d34-0410-b5e6-96231b3b80d8
130 lines
3.9 KiB
C++
130 lines
3.9 KiB
C++
//===-- llvm/IR/AsmWriter.h - Printing LLVM IR as an assembly file - 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 files defines the interface for the AssemblyWriter class used to print
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// LLVM IR and various helper classes that are used in printing.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_IR_ASMWRITER_H
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#define LLVM_LIB_IR_ASMWRITER_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/SetVector.h"
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#include "llvm/IR/Attributes.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/TypeFinder.h"
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#include "llvm/IR/UseListOrder.h"
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#include "llvm/Support/FormattedStream.h"
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namespace llvm {
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class BasicBlock;
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class Function;
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class GlobalValue;
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class Comdat;
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class Module;
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class NamedMDNode;
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class Value;
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class SlotTracker;
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/// Create a new SlotTracker for a Module
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SlotTracker *createSlotTracker(const Module *M);
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//===----------------------------------------------------------------------===//
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// TypePrinting Class: Type printing machinery
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//===----------------------------------------------------------------------===//
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class TypePrinting {
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TypePrinting(const TypePrinting &) LLVM_DELETED_FUNCTION;
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void operator=(const TypePrinting&) LLVM_DELETED_FUNCTION;
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public:
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/// NamedTypes - The named types that are used by the current module.
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TypeFinder NamedTypes;
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/// NumberedTypes - The numbered types, along with their value.
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DenseMap<StructType*, unsigned> NumberedTypes;
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TypePrinting() {}
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~TypePrinting() {}
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void incorporateTypes(const Module &M);
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void print(Type *Ty, raw_ostream &OS);
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void printStructBody(StructType *Ty, raw_ostream &OS);
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};
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class AssemblyWriter {
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protected:
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formatted_raw_ostream &Out;
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const Module *TheModule;
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private:
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std::unique_ptr<SlotTracker> ModuleSlotTracker;
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SlotTracker &Machine;
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TypePrinting TypePrinter;
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AssemblyAnnotationWriter *AnnotationWriter;
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SetVector<const Comdat *> Comdats;
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UseListOrderStack UseListOrders;
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public:
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/// Construct an AssemblyWriter with an external SlotTracker
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AssemblyWriter(formatted_raw_ostream &o, SlotTracker &Mac,
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const Module *M, AssemblyAnnotationWriter *AAW);
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/// Construct an AssemblyWriter with an internally allocated SlotTracker
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AssemblyWriter(formatted_raw_ostream &o, const Module *M,
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AssemblyAnnotationWriter *AAW);
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virtual ~AssemblyWriter();
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void printMDNodeBody(const MDNode *MD);
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void printNamedMDNode(const NamedMDNode *NMD);
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void printModule(const Module *M);
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void writeOperand(const Value *Op, bool PrintType);
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void writeParamOperand(const Value *Operand, AttributeSet Attrs,unsigned Idx);
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void writeAtomic(AtomicOrdering Ordering, SynchronizationScope SynchScope);
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void writeAtomicCmpXchg(AtomicOrdering SuccessOrdering,
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AtomicOrdering FailureOrdering,
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SynchronizationScope SynchScope);
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void writeAllMDNodes();
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void writeMDNode(unsigned Slot, const MDNode *Node);
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void writeAllAttributeGroups();
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void printTypeIdentities();
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void printGlobal(const GlobalVariable *GV);
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void printAlias(const GlobalAlias *GV);
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void printComdat(const Comdat *C);
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void printFunction(const Function *F);
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void printArgument(const Argument *FA, AttributeSet Attrs, unsigned Idx);
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void printBasicBlock(const BasicBlock *BB);
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void printInstructionLine(const Instruction &I);
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void printInstruction(const Instruction &I);
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void printUseListOrder(const UseListOrder &Order);
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void printUseLists(const Function *F);
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private:
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void init();
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// printInfoComment - Print a little comment after the instruction indicating
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// which slot it occupies.
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void printInfoComment(const Value &V);
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};
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} // namespace llvm
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#endif
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