PPCInstrInfo.cpp revision b5f662fa0314f7e7e690aae8ebff7136cc3a5ab0
1f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman//===- PPC32InstrInfo.cpp - PowerPC32 Instruction Information ---*- C++ -*-===// 2b5f662fa0314f7e7e690aae8ebff7136cc3a5ab0Misha Brukman// 3f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman// The LLVM Compiler Infrastructure 4f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman// 5f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman// This file was developed by the LLVM research group and is distributed under 6f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman// the University of Illinois Open Source License. See LICENSE.TXT for details. 7b5f662fa0314f7e7e690aae8ebff7136cc3a5ab0Misha Brukman// 8f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman//===----------------------------------------------------------------------===// 9f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman// 10f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman// This file contains the PowerPC implementation of the TargetInstrInfo class. 11f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman// 12f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman//===----------------------------------------------------------------------===// 13f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman 14f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman#include "PPC32InstrInfo.h" 15f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman#include "PPC32GenInstrInfo.inc" 16f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman#include "PowerPC.h" 17f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman#include "llvm/CodeGen/MachineInstrBuilder.h" 18f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman#include <iostream> 19f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukmanusing namespace llvm; 20f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman 21f2ccb77ee9d8ab35866dae111fa36929689c7511Misha BrukmanPPC32InstrInfo::PPC32InstrInfo() 22f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman : TargetInstrInfo(PPC32Insts, sizeof(PPC32Insts)/sizeof(PPC32Insts[0])) {} 23f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman 24f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukmanbool PPC32InstrInfo::isMoveInstr(const MachineInstr& MI, 25f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman unsigned& sourceReg, 26f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman unsigned& destReg) const { 27f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman MachineOpCode oc = MI.getOpcode(); 28f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman if (oc == PPC::OR) { // or r1, r2, r2 29f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman assert(MI.getNumOperands() == 3 && 30f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman MI.getOperand(0).isRegister() && 31f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman MI.getOperand(1).isRegister() && 32f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman MI.getOperand(2).isRegister() && 33f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman "invalid PPC OR instruction!"); 34f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman if (MI.getOperand(1).getReg() == MI.getOperand(2).getReg()) { 35f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman sourceReg = MI.getOperand(1).getReg(); 36f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman destReg = MI.getOperand(0).getReg(); 37f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman return true; 38f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman } 39f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman } else if (oc == PPC::ADDI) { // addi r1, r2, 0 40f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman assert(MI.getNumOperands() == 3 && 41f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman MI.getOperand(0).isRegister() && 42f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman MI.getOperand(2).isImmediate() && 43f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman "invalid PPC ADDI instruction!"); 44f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman if (MI.getOperand(1).isRegister() && MI.getOperand(2).getImmedValue()==0) { 45f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman sourceReg = MI.getOperand(1).getReg(); 46f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman destReg = MI.getOperand(0).getReg(); 47f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman return true; 48f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman } 49cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman } else if (oc == PPC::ORI) { // ori r1, r2, 0 50cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman assert(MI.getNumOperands() == 3 && 51cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman MI.getOperand(0).isRegister() && 52cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman MI.getOperand(1).isRegister() && 53cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman MI.getOperand(2).isImmediate() && 54cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman "invalid PPC ORI instruction!"); 55cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman if (MI.getOperand(2).getImmedValue()==0) { 56cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman sourceReg = MI.getOperand(1).getReg(); 57cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman destReg = MI.getOperand(0).getReg(); 58cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman return true; 59cb90de37a720b0b00d6303b49b8df6d5ac5f34f9Nate Begeman } 60f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman } else if (oc == PPC::FMR) { // fmr r1, r2 61f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman assert(MI.getNumOperands() == 2 && 62f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman MI.getOperand(0).isRegister() && 63f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman MI.getOperand(1).isRegister() && 64f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman "invalid PPC FMR instruction"); 65f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman sourceReg = MI.getOperand(1).getReg(); 66f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman destReg = MI.getOperand(0).getReg(); 67f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman return true; 687af0248af47fbd86ec65d308adda22ec367accc4Nate Begeman } else if (oc == PPC::MCRF) { // mcrf cr1, cr2 697af0248af47fbd86ec65d308adda22ec367accc4Nate Begeman assert(MI.getNumOperands() == 2 && 707af0248af47fbd86ec65d308adda22ec367accc4Nate Begeman MI.getOperand(0).isRegister() && 717af0248af47fbd86ec65d308adda22ec367accc4Nate Begeman MI.getOperand(1).isRegister() && 727af0248af47fbd86ec65d308adda22ec367accc4Nate Begeman "invalid PPC MCRF instruction"); 737af0248af47fbd86ec65d308adda22ec367accc4Nate Begeman sourceReg = MI.getOperand(1).getReg(); 747af0248af47fbd86ec65d308adda22ec367accc4Nate Begeman destReg = MI.getOperand(0).getReg(); 757af0248af47fbd86ec65d308adda22ec367accc4Nate Begeman return true; 76f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman } 77f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman return false; 78f2ccb77ee9d8ab35866dae111fa36929689c7511Misha Brukman} 79