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//===-- llvm/Assembly/Writer.h - Printer for VM assembly files ---*- C++ -*--=//
//
// This functionality is implemented by the lib/Assembly/Writer library.
// This library is used to print VM assembly language files to an iostream. It
// can print VM code at a variety of granularities, ranging from a whole class
// down to an individual instruction. This makes it useful for debugging.
//
// This file also defines functions that allow it to output files that a program
// called VCG can read.
//
// This library uses the Analysis library to figure out offsets for
// variables in the method tables...
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ASSEMBLY_WRITER_H
#define LLVM_ASSEMBLY_WRITER_H
#include <iostream>
#include "llvm/Type.h"
class Module;
class GlobalVariable;
class Method;
class BasicBlock;
class Instruction;
class SlotCalculator;
// The only interface defined by this file... convert the internal
// representation of an object into an ascii bytestream that the parser can
// understand later... (the parser only understands whole classes though)
//
void WriteToAssembly(const Module *Module, std::ostream &o);
void WriteToAssembly(const GlobalVariable *G, std::ostream &o);
void WriteToAssembly(const Method *Method, std::ostream &o);
void WriteToAssembly(const BasicBlock *BB, std::ostream &o);
void WriteToAssembly(const Instruction *In, std::ostream &o);
void WriteToAssembly(const Constant *V, std::ostream &o);
// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
// type, iff there is an entry in the modules symbol table for the specified
// type or one of it's component types. This is slower than a simple x << Type;
//
std::ostream &WriteTypeSymbolic(std::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.
//
std::ostream &WriteAsOperand(std::ostream &, const Value *, bool PrintTy = true,
bool PrintName = true, SlotCalculator *Table = 0);
// WriteToVCG - Dump the specified structure to a VCG file. If method is
// dumped, then the file named is created. If a module is to be written, a
// family of files with a common base name is created, with a method name
// suffix.
//
void WriteToVCG(const Module *Module, const std::string &Filename);
void WriteToVCG(const Method *Method, const std::string &Filename);
// Define operator<< to work on the various classes that we can send to an
// ostream...
//
inline std::ostream &operator<<(std::ostream &o, const Module *C) {
WriteToAssembly(C, o); return o;
}
inline std::ostream &operator<<(std::ostream &o, const GlobalVariable *G) {
WriteToAssembly(G, o); return o;
}
inline std::ostream &operator<<(std::ostream &o, const Method *M) {
WriteToAssembly(M, o); return o;
}
inline std::ostream &operator<<(std::ostream &o, const BasicBlock *B) {
WriteToAssembly(B, o); return o;
}
inline std::ostream &operator<<(std::ostream &o, const Instruction *I) {
WriteToAssembly(I, o); return o;
}
inline std::ostream &operator<<(std::ostream &o, const Constant *I) {
WriteToAssembly(I, o); return o;
}
inline std::ostream &operator<<(std::ostream &o, const Type *T) {
if (!T) return o << "<null Type>";
return o << T->getDescription();
}
inline std::ostream &operator<<(std::ostream &o, const Value *I) {
switch (I->getValueType()) {
case Value::TypeVal: return o << cast<const Type>(I);
case Value::ConstantVal: WriteToAssembly(cast<Constant>(I) , o); break;
case Value::MethodArgumentVal: return o << I->getType() << " "<< I->getName();
case Value::InstructionVal:WriteToAssembly(cast<Instruction>(I) , o); break;
case Value::BasicBlockVal: WriteToAssembly(cast<BasicBlock>(I) , o); break;
case Value::MethodVal: WriteToAssembly(cast<Method>(I) , o); break;
case Value::GlobalVariableVal:
WriteToAssembly(cast<GlobalVariable>(I), o); break;
case Value::ModuleVal: WriteToAssembly(cast<Module>(I) , o); break;
default: return o << "<unknown value type: " << I->getValueType() << ">";
}
return o;
}
#endif
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