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llvm-mirror/lib/CodeGen/MachineCodeEmitter.cpp
2003-01-13 00:22:37 +00:00

54 lines
1.9 KiB
C++

//===-- MachineCodeEmitter.cpp - Implement the MachineCodeEmitter itf -----===//
//
// This file implements the MachineCodeEmitter interface.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineCodeEmitter.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/Function.h"
#include <iostream>
namespace {
struct DebugMachineCodeEmitter : public MachineCodeEmitter {
void startFunction(MachineFunction &F) {
std::cout << "\n**** Writing machine code for function: "
<< F.getFunction()->getName() << "\n";
}
void finishFunction(MachineFunction &F) {
std::cout << "\n";
}
void startBasicBlock(MachineBasicBlock &BB) {
std::cout << "\n--- Basic Block: " << BB.getBasicBlock()->getName()<<"\n";
}
void emitByte(unsigned char B) {
std::cout << "0x" << std::hex << (unsigned int)B << std::dec << " ";
}
void emitPCRelativeDisp(Value *V) {
std::cout << "<disp %" << V->getName() << ": 0xXX 0xXX 0xXX 0xXX> ";
}
void emitGlobalAddress(GlobalValue *V, bool isPCRelative) {
std::cout << "<addr %" << V->getName() << ": 0xXX 0xXX 0xXX 0xXX> ";
}
void emitGlobalAddress(const std::string &Name, bool isPCRelative) {
std::cout << "<addr %" << Name << ": 0xXX 0xXX 0xXX 0xXX> ";
}
void emitFunctionConstantValueAddress(unsigned ConstantNum, int Offset) {
std::cout << "<addr const#" << ConstantNum;
if (Offset) std::cout << " + " << Offset;
std::cout << "> ";
}
};
}
/// createDebugMachineCodeEmitter - Return a dynamically allocated machine
/// code emitter, which just prints the opcodes and fields out the cout. This
/// can be used for debugging users of the MachineCodeEmitter interface.
///
MachineCodeEmitter *MachineCodeEmitter::createDebugMachineCodeEmitter() {
return new DebugMachineCodeEmitter();
}