MachineCodeEmitter.cpp revision fd33fb8726d4b824d82851f57e37e2df394aad0b
1//===-- MachineCodeEmitter.cpp - Implement the MachineCodeEmitter itf -----===// 2// 3// This file implements the MachineCodeEmitter interface. 4// 5//===----------------------------------------------------------------------===// 6 7#include "llvm/CodeGen/MachineCodeEmitter.h" 8#include "llvm/CodeGen/MachineFunction.h" 9#include "llvm/Function.h" 10#include <iostream> 11 12namespace { 13 struct DebugMachineCodeEmitter : public MachineCodeEmitter { 14 void startFunction(MachineFunction &F) { 15 std::cout << "\n**** Writing machine code for function: " 16 << F.getFunction()->getName() << "\n"; 17 } 18 void finishFunction(MachineFunction &F) { 19 std::cout << "\n"; 20 } 21 void startBasicBlock(MachineBasicBlock &BB) { 22 std::cout << "\n--- Basic Block: " << BB.getBasicBlock()->getName()<<"\n"; 23 } 24 25 void startFunctionStub(Function &F, unsigned StubSize) { 26 std::cout << "\n--- Function stub for function: " << F.getName() << "\n"; 27 } 28 void finishFunctionStub(Function &F) { 29 std::cout << "\n"; 30 } 31 32 void emitByte(unsigned char B) { 33 std::cout << "0x" << std::hex << (unsigned int)B << std::dec << " "; 34 } 35 void emitPCRelativeDisp(Value *V) { 36 std::cout << "<disp %" << V->getName() << ": 0xXX 0xXX 0xXX 0xXX> "; 37 } 38 void emitGlobalAddress(GlobalValue *V, bool isPCRelative) { 39 std::cout << "<addr %" << V->getName() << ": 0xXX 0xXX 0xXX 0xXX> "; 40 } 41 void emitGlobalAddress(const std::string &Name, bool isPCRelative) { 42 std::cout << "<addr %" << Name << ": 0xXX 0xXX 0xXX 0xXX> "; 43 } 44 45 void emitFunctionConstantValueAddress(unsigned ConstantNum, int Offset) { 46 std::cout << "<addr const#" << ConstantNum; 47 if (Offset) std::cout << " + " << Offset; 48 std::cout << "> "; 49 } 50 }; 51} 52 53 54/// createDebugMachineCodeEmitter - Return a dynamically allocated machine 55/// code emitter, which just prints the opcodes and fields out the cout. This 56/// can be used for debugging users of the MachineCodeEmitter interface. 57/// 58MachineCodeEmitter *MachineCodeEmitter::createDebugMachineCodeEmitter() { 59 return new DebugMachineCodeEmitter(); 60} 61