bool PushPopToMovOptimization::Optimize(AsmCode& code, int index) { if (index + 1 == code.Size()) { return false; } AsmCmd1* cmd1 = dynamic_cast<AsmCmd1*>(code[index]); AsmCmd1* cmd2 = dynamic_cast<AsmCmd1*>(code[index + 1]); if (cmd1 && cmd2 && *cmd1 == cmdPUSH && *cmd2 == cmdPOP && *cmd1->GetArgument() != cmd2->GetArgument() && !IsMemory(cmd1->GetArgument()) && !IsMemory(cmd2->GetArgument())) { AsmCmd2* optCmd = new AsmCmd2(cmdMOV, cmd2->GetArgument(), cmd1->GetArgument()); code.Delete(index, index + 1); code.Insert(optCmd, index); return true; } return false; }
bool MovChainOptimization::Optimize(AsmCode& code, int index) { if (index + 1 == code.Size()) { return false; } AsmCmd2* cmd1 = dynamic_cast<AsmCmd2*>(code[index]); AsmCmd2* cmd2 = dynamic_cast<AsmCmd2*>(code[index + 1]); if (cmd1 && cmd2 && *cmd1 == cmdMOV && *cmd2 == cmdMOV && *cmd1->GetFirst() != EBP && *cmd1->GetSecond() != ESP && *cmd2->GetSecond() == cmd1->GetFirst() && !IsMemory(cmd1->GetSecond()) && !IsMemory(cmd2->GetFirst())) { AsmCmd2* optCmd = new AsmCmd2(cmdMOV, cmd2->GetFirst(), cmd1->GetSecond()); code.Delete(index, index + 1); code.Insert(optCmd, index); return true; } return false; }