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llvm-mirror/include/llvm/Assembly/Writer.h

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//===-- llvm/Assembly/Writer.h - Printer for LLVM assembly files --*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
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//
// This functionality is implemented by lib/VMCore/AsmWriter.cpp.
// This library is used to print LLVM assembly language files to an iostream. It
// can print LLVM code at a variety of granularities, including Modules,
// BasicBlocks, and Instructions. This makes it useful for debugging.
//
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//===----------------------------------------------------------------------===//
#ifndef LLVM_ASSEMBLY_WRITER_H
#define LLVM_ASSEMBLY_WRITER_H
#include <iosfwd>
namespace llvm {
class Type;
class Module;
class Value;
class raw_ostream;
template <typename T> class SmallVectorImpl;
/// TypePrinting - Type printing machinery.
class TypePrinting {
void *TypeNames; // A map to remember type names.
TypePrinting(const TypePrinting &); // DO NOT IMPLEMENT
void operator=(const TypePrinting&); // DO NOT IMPLEMENT
public:
TypePrinting();
~TypePrinting();
void clear();
void print(const Type *Ty, raw_ostream &OS, bool IgnoreTopLevelName = false);
void printAtLeastOneLevel(const Type *Ty, raw_ostream &OS) {
print(Ty, OS, true);
}
/// hasTypeName - Return true if the type has a name in TypeNames, false
/// otherwise.
bool hasTypeName(const Type *Ty) const;
/// addTypeName - Add a name for the specified type if it doesn't already have
/// one. This name will be printed instead of the structural version of the
/// type in order to make the output more concise.
void addTypeName(const Type *Ty, const std::string &N);
private:
void CalcTypeName(const Type *Ty, SmallVectorImpl<const Type *> &TypeStack,
raw_ostream &OS, bool IgnoreTopLevelName = false);
};
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// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
// type, if there is an entry in the Module's symbol table for the specified
// type or one of its component types.
//
void WriteTypeSymbolic(raw_ostream &, const Type *, const Module *M);
// WriteAsOperand - Write the name of the specified value out to the specified
// ostream. This can be useful when you just want to print int %reg126, not the
// whole instruction that generated it. If you specify a Module for context,
// then even constants get pretty-printed; for example, the type of a null
// pointer is printed symbolically.
//
void WriteAsOperand(std::ostream &, const Value *, bool PrintTy = true,
const Module *Context = 0);
void WriteAsOperand(raw_ostream &, const Value *, bool PrintTy = true,
const Module *Context = 0);
} // End llvm namespace
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#endif