//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the "Instituto Nokia de Tecnologia" and
-// is distributed under the University of Illinois Open Source
+// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineLocation.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/RegisterScavenging.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "llvm/Target/TargetMachine.h"
FramePtr((STI.useThumbBacktraces() || STI.isThumb()) ? ARM::R7 : ARM::R11) {
}
-bool ARMRegisterInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- const std::vector<CalleeSavedInfo> &CSI) const {
- MachineFunction &MF = *MBB.getParent();
- ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
- if (!AFI->isThumbFunction() || CSI.empty())
- return false;
-
- MachineInstrBuilder MIB = BuildMI(MBB, MI, TII.get(ARM::tPUSH));
- for (unsigned i = CSI.size(); i != 0; --i) {
- unsigned Reg = CSI[i-1].getReg();
- // Add the callee-saved register as live-in. It's killed at the spill.
- MBB.addLiveIn(Reg);
- MIB.addReg(Reg, false/*isDef*/,false/*isImp*/,true/*isKill*/);
- }
- return true;
+static inline
+const MachineInstrBuilder &AddDefaultPred(const MachineInstrBuilder &MIB) {
+ return MIB.addImm((int64_t)ARMCC::AL).addReg(0);
}
-bool ARMRegisterInfo::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- const std::vector<CalleeSavedInfo> &CSI) const {
- MachineFunction &MF = *MBB.getParent();
- ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
- if (!AFI->isThumbFunction() || CSI.empty())
- return false;
-
- bool isVarArg = AFI->getVarArgsRegSaveSize() > 0;
- MachineInstr *PopMI = new MachineInstr(TII.get(ARM::tPOP));
- MBB.insert(MI, PopMI);
- for (unsigned i = CSI.size(); i != 0; --i) {
- unsigned Reg = CSI[i-1].getReg();
- if (Reg == ARM::LR) {
- // Special epilogue for vararg functions. See emitEpilogue
- if (isVarArg)
- continue;
- Reg = ARM::PC;
- PopMI->setInstrDescriptor(TII.get(ARM::tPOP_RET));
- MBB.erase(MI);
- }
- PopMI->addRegOperand(Reg, true);
- }
- return true;
-}
-
-void ARMRegisterInfo::
-storeRegToStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
- unsigned SrcReg, int FI,
- const TargetRegisterClass *RC) const {
- if (RC == ARM::GPRRegisterClass) {
- MachineFunction &MF = *MBB.getParent();
- ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
- if (AFI->isThumbFunction())
- BuildMI(MBB, I, TII.get(ARM::tSpill)).addReg(SrcReg, false, false, true)
- .addFrameIndex(FI).addImm(0);
- else
- BuildMI(MBB, I, TII.get(ARM::STR)).addReg(SrcReg, false, false, true)
- .addFrameIndex(FI).addReg(0).addImm(0).addImm((int64_t)ARMCC::AL);
- } else if (RC == ARM::DPRRegisterClass) {
- BuildMI(MBB, I, TII.get(ARM::FSTD)).addReg(SrcReg, false, false, true)
- .addFrameIndex(FI).addImm(0).addImm((int64_t)ARMCC::AL);
- } else {
- assert(RC == ARM::SPRRegisterClass && "Unknown regclass!");
- BuildMI(MBB, I, TII.get(ARM::FSTS)).addReg(SrcReg, false, false, true)
- .addFrameIndex(FI).addImm(0).addImm((int64_t)ARMCC::AL);
- }
-}
-
-void ARMRegisterInfo::
-loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
- unsigned DestReg, int FI,
- const TargetRegisterClass *RC) const {
- if (RC == ARM::GPRRegisterClass) {
- MachineFunction &MF = *MBB.getParent();
- ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
- if (AFI->isThumbFunction())
- BuildMI(MBB, I, TII.get(ARM::tRestore), DestReg)
- .addFrameIndex(FI).addImm(0);
- else
- BuildMI(MBB, I, TII.get(ARM::LDR), DestReg)
- .addFrameIndex(FI).addReg(0).addImm(0).addImm((int64_t)ARMCC::AL);
- } else if (RC == ARM::DPRRegisterClass) {
- BuildMI(MBB, I, TII.get(ARM::FLDD), DestReg)
- .addFrameIndex(FI).addImm(0).addImm((int64_t)ARMCC::AL);
- } else {
- assert(RC == ARM::SPRRegisterClass && "Unknown regclass!");
- BuildMI(MBB, I, TII.get(ARM::FLDS), DestReg)
- .addFrameIndex(FI).addImm(0).addImm((int64_t)ARMCC::AL);
- }
-}
-
-void ARMRegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator I,
- unsigned DestReg, unsigned SrcReg,
- const TargetRegisterClass *RC) const {
- if (RC == ARM::GPRRegisterClass) {
- MachineFunction &MF = *MBB.getParent();
- ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
- if (AFI->isThumbFunction())
- BuildMI(MBB, I, TII.get(ARM::tMOVr), DestReg).addReg(SrcReg);
- else
- BuildMI(MBB, I, TII.get(ARM::MOVr), DestReg).addReg(SrcReg)
- .addImm((int64_t)ARMCC::AL);
- } else if (RC == ARM::SPRRegisterClass)
- BuildMI(MBB, I, TII.get(ARM::FCPYS), DestReg).addReg(SrcReg)
- .addImm((int64_t)ARMCC::AL);
- else if (RC == ARM::DPRRegisterClass)
- BuildMI(MBB, I, TII.get(ARM::FCPYD), DestReg).addReg(SrcReg)
- .addImm((int64_t)ARMCC::AL);
- else
- abort();
+static inline
+const MachineInstrBuilder &AddDefaultCC(const MachineInstrBuilder &MIB) {
+ return MIB.addReg(0);
}
/// emitLoadConstPool - Emits a load from constpool to materialize the
/// specified immediate.
static void emitLoadConstPool(MachineBasicBlock &MBB,
MachineBasicBlock::iterator &MBBI,
- unsigned DestReg, ARMCC::CondCodes Pred, int Val,
+ unsigned DestReg, int Val,
+ ARMCC::CondCodes Pred, unsigned PredReg,
const TargetInstrInfo &TII, bool isThumb) {
MachineFunction &MF = *MBB.getParent();
MachineConstantPool *ConstantPool = MF.getConstantPool();
BuildMI(MBB, MBBI, TII.get(ARM::tLDRcp), DestReg).addConstantPoolIndex(Idx);
else
BuildMI(MBB, MBBI, TII.get(ARM::LDRcp), DestReg).addConstantPoolIndex(Idx)
- .addReg(0).addImm(0).addImm((unsigned)Pred);
+ .addReg(0).addImm(0).addImm((unsigned)Pred).addReg(PredReg);
}
void ARMRegisterInfo::reMaterialize(MachineBasicBlock &MBB,
const MachineInstr *Orig) const {
if (Orig->getOpcode() == ARM::MOVi2pieces) {
emitLoadConstPool(MBB, I, DestReg,
- (ARMCC::CondCodes)Orig->getOperand(2).getImmedValue(),
- Orig->getOperand(1).getImmedValue(),
+ Orig->getOperand(1).getImm(),
+ (ARMCC::CondCodes)Orig->getOperand(2).getImm(),
+ Orig->getOperand(3).getReg(),
TII, false);
return;
}
/// isLowRegister - Returns true if the register is low register r0-r7.
///
-static bool isLowRegister(unsigned Reg) {
+bool ARMRegisterInfo::isLowRegister(unsigned Reg) const {
using namespace ARM;
switch (Reg) {
case R0: case R1: case R2: case R3:
}
}
-MachineInstr *ARMRegisterInfo::foldMemoryOperand(MachineInstr *MI,
- unsigned OpNum, int FI) const {
- unsigned Opc = MI->getOpcode();
- MachineInstr *NewMI = NULL;
- switch (Opc) {
- default: break;
- case ARM::MOVr: {
- unsigned Pred = MI->getOperand(2).getImmedValue();
- if (OpNum == 0) { // move -> store
- unsigned SrcReg = MI->getOperand(1).getReg();
- NewMI = BuildMI(TII.get(ARM::STR)).addReg(SrcReg).addFrameIndex(FI)
- .addReg(0).addImm(0).addImm(Pred);
- } else { // move -> load
- unsigned DstReg = MI->getOperand(0).getReg();
- NewMI = BuildMI(TII.get(ARM::LDR), DstReg).addFrameIndex(FI).addReg(0)
- .addImm(0).addImm(Pred);
- }
- break;
- }
- case ARM::tMOVr: {
- if (OpNum == 0) { // move -> store
- unsigned SrcReg = MI->getOperand(1).getReg();
- if (isPhysicalRegister(SrcReg) && !isLowRegister(SrcReg))
- // tSpill cannot take a high register operand.
- break;
- NewMI = BuildMI(TII.get(ARM::tSpill)).addReg(SrcReg).addFrameIndex(FI)
- .addImm(0);
- } else { // move -> load
- unsigned DstReg = MI->getOperand(0).getReg();
- if (isPhysicalRegister(DstReg) && !isLowRegister(DstReg))
- // tRestore cannot target a high register operand.
- break;
- NewMI = BuildMI(TII.get(ARM::tRestore), DstReg).addFrameIndex(FI)
- .addImm(0);
- }
- break;
- }
- case ARM::FCPYS: {
- unsigned Pred = MI->getOperand(2).getImmedValue();
- if (OpNum == 0) { // move -> store
- unsigned SrcReg = MI->getOperand(1).getReg();
- NewMI = BuildMI(TII.get(ARM::FSTS)).addReg(SrcReg).addFrameIndex(FI)
- .addImm(0).addImm(Pred);
- } else { // move -> load
- unsigned DstReg = MI->getOperand(0).getReg();
- NewMI = BuildMI(TII.get(ARM::FLDS), DstReg).addFrameIndex(FI)
- .addImm(0).addImm(Pred);
- }
- break;
- }
- case ARM::FCPYD: {
- unsigned Pred = MI->getOperand(2).getImmedValue();
- if (OpNum == 0) { // move -> store
- unsigned SrcReg = MI->getOperand(1).getReg();
- NewMI = BuildMI(TII.get(ARM::FSTD)).addReg(SrcReg).addFrameIndex(FI)
- .addImm(0).addImm(Pred);
- } else { // move -> load
- unsigned DstReg = MI->getOperand(0).getReg();
- NewMI = BuildMI(TII.get(ARM::FLDD), DstReg).addFrameIndex(FI)
- .addImm(0).addImm(Pred);
- }
- break;
- }
- }
-
- if (NewMI)
- NewMI->copyKillDeadInfo(MI);
- return NewMI;
-}
-
-const unsigned* ARMRegisterInfo::getCalleeSavedRegs() const {
+const unsigned*
+ARMRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
static const unsigned CalleeSavedRegs[] = {
ARM::LR, ARM::R11, ARM::R10, ARM::R9, ARM::R8,
ARM::R7, ARM::R6, ARM::R5, ARM::R4,
}
const TargetRegisterClass* const *
-ARMRegisterInfo::getCalleeSavedRegClasses() const {
+ARMRegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
static const TargetRegisterClass * const CalleeSavedRegClasses[] = {
&ARM::GPRRegClass, &ARM::GPRRegClass, &ARM::GPRRegClass,
&ARM::GPRRegClass, &ARM::GPRRegClass, &ARM::GPRRegClass,
if (CFSize >= ((1 << 12) - 1) / 2) // Half of imm12
return false;
}
- return !hasFP(MF);
+ return !MF.getFrameInfo()->hasVarSizedObjects();
}
/// emitARMRegPlusImmediate - Emits a series of instructions to materialize
static
void emitARMRegPlusImmediate(MachineBasicBlock &MBB,
MachineBasicBlock::iterator &MBBI,
- unsigned DestReg, unsigned BaseReg,
- ARMCC::CondCodes Pred,
- int NumBytes, const TargetInstrInfo &TII) {
+ unsigned DestReg, unsigned BaseReg, int NumBytes,
+ ARMCC::CondCodes Pred, unsigned PredReg,
+ const TargetInstrInfo &TII) {
bool isSub = NumBytes < 0;
if (isSub) NumBytes = -NumBytes;
// Build the new ADD / SUB.
BuildMI(MBB, MBBI, TII.get(isSub ? ARM::SUBri : ARM::ADDri), DestReg)
.addReg(BaseReg, false, false, true).addImm(SOImmVal)
- .addImm((unsigned)Pred);
+ .addImm((unsigned)Pred).addReg(PredReg).addReg(0);
BaseReg = DestReg;
}
}
/// constpool entry.
static
void emitThumbRegPlusImmInReg(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator &MBBI,
- unsigned DestReg, unsigned BaseReg,
- int NumBytes, bool CanChangeCC,
- const TargetInstrInfo &TII) {
- bool isHigh = !isLowRegister(DestReg) ||
- (BaseReg != 0 && !isLowRegister(BaseReg));
+ MachineBasicBlock::iterator &MBBI,
+ unsigned DestReg, unsigned BaseReg,
+ int NumBytes, bool CanChangeCC,
+ const TargetInstrInfo &TII,
+ const ARMRegisterInfo& MRI) {
+ bool isHigh = !MRI.isLowRegister(DestReg) ||
+ (BaseReg != 0 && !MRI.isLowRegister(BaseReg));
bool isSub = false;
// Subtract doesn't have high register version. Load the negative value
// if either base or dest register is a high register. Also, if do not
BuildMI(MBB, MBBI, TII.get(ARM::tNEG), LdReg)
.addReg(LdReg, false, false, true);
} else
- emitLoadConstPool(MBB, MBBI, LdReg, ARMCC::AL, NumBytes, TII, true);
+ emitLoadConstPool(MBB, MBBI, LdReg, NumBytes, ARMCC::AL, 0, TII, true);
// Emit add / sub.
int Opc = (isSub) ? ARM::tSUBrr : (isHigh ? ARM::tADDhirr : ARM::tADDrr);
void emitThumbRegPlusImmediate(MachineBasicBlock &MBB,
MachineBasicBlock::iterator &MBBI,
unsigned DestReg, unsigned BaseReg,
- int NumBytes, const TargetInstrInfo &TII) {
+ int NumBytes, const TargetInstrInfo &TII,
+ const ARMRegisterInfo& MRI) {
bool isSub = NumBytes < 0;
unsigned Bytes = (unsigned)NumBytes;
if (isSub) Bytes = -NumBytes;
if (NumMIs > Threshold) {
// This will expand into too many instructions. Load the immediate from a
// constpool entry.
- emitThumbRegPlusImmInReg(MBB, MBBI, DestReg, BaseReg, NumBytes, true, TII);
+ emitThumbRegPlusImmInReg(MBB, MBBI, DestReg, BaseReg, NumBytes, true, TII, MRI);
return;
}
if (DstNotEqBase) {
- if (isLowRegister(DestReg) && isLowRegister(BaseReg)) {
+ if (MRI.isLowRegister(DestReg) && MRI.isLowRegister(BaseReg)) {
// If both are low registers, emit DestReg = add BaseReg, max(Imm, 7)
unsigned Chunk = (1 << 3) - 1;
unsigned ThisVal = (Bytes > Chunk) ? Chunk : Bytes;
static
void emitSPUpdate(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI,
- ARMCC::CondCodes Pred, int NumBytes, bool isThumb,
- const TargetInstrInfo &TII) {
+ int NumBytes, ARMCC::CondCodes Pred, unsigned PredReg,
+ bool isThumb, const TargetInstrInfo &TII,
+ const ARMRegisterInfo& MRI) {
if (isThumb)
- emitThumbRegPlusImmediate(MBB, MBBI, ARM::SP, ARM::SP, NumBytes, TII);
+ emitThumbRegPlusImmediate(MBB, MBBI, ARM::SP, ARM::SP, NumBytes, TII, MRI);
else
- emitARMRegPlusImmediate(MBB, MBBI, ARM::SP, ARM::SP, Pred, NumBytes, TII);
+ emitARMRegPlusImmediate(MBB, MBBI, ARM::SP, ARM::SP, NumBytes,
+ Pred, PredReg, TII);
}
void ARMRegisterInfo::
// ADJCALLSTACKDOWN -> sub, sp, sp, amount
// ADJCALLSTACKUP -> add, sp, sp, amount
MachineInstr *Old = I;
- unsigned Amount = Old->getOperand(0).getImmedValue();
+ unsigned Amount = Old->getOperand(0).getImm();
if (Amount != 0) {
ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
// We need to keep the stack aligned properly. To do this, we round the
unsigned Opc = Old->getOpcode();
bool isThumb = AFI->isThumbFunction();
ARMCC::CondCodes Pred = isThumb
- ? ARMCC::AL : (ARMCC::CondCodes)Old->getOperand(1).getImmedValue();
+ ? ARMCC::AL : (ARMCC::CondCodes)Old->getOperand(1).getImm();
if (Opc == ARM::ADJCALLSTACKDOWN || Opc == ARM::tADJCALLSTACKDOWN) {
- emitSPUpdate(MBB, I, Pred, -Amount, isThumb, TII);
+ // Note: PredReg is operand 2 for ADJCALLSTACKDOWN.
+ unsigned PredReg = isThumb ? 0 : Old->getOperand(2).getReg();
+ emitSPUpdate(MBB, I, -Amount, Pred, PredReg, isThumb, TII, *this);
} else {
+ // Note: PredReg is operand 3 for ADJCALLSTACKUP.
+ unsigned PredReg = isThumb ? 0 : Old->getOperand(3).getReg();
assert(Opc == ARM::ADJCALLSTACKUP || Opc == ARM::tADJCALLSTACKUP);
- emitSPUpdate(MBB, I, Pred, Amount, isThumb, TII);
+ emitSPUpdate(MBB, I, Amount, Pred, PredReg, isThumb, TII, *this);
}
}
}
static void emitThumbConstant(MachineBasicBlock &MBB,
MachineBasicBlock::iterator &MBBI,
unsigned DestReg, int Imm,
- const TargetInstrInfo &TII) {
+ const TargetInstrInfo &TII,
+ const ARMRegisterInfo& MRI) {
bool isSub = Imm < 0;
if (isSub) Imm = -Imm;
Imm -= ThisVal;
BuildMI(MBB, MBBI, TII.get(ARM::tMOVi8), DestReg).addImm(ThisVal);
if (Imm > 0)
- emitThumbRegPlusImmediate(MBB, MBBI, DestReg, DestReg, Imm, TII);
+ emitThumbRegPlusImmediate(MBB, MBBI, DestReg, DestReg, Imm, TII, MRI);
if (isSub)
BuildMI(MBB, MBBI, TII.get(ARM::tNEG), DestReg)
.addReg(DestReg, false, false, true);
}
unsigned FrameReg = ARM::SP;
- int FrameIndex = MI.getOperand(i).getFrameIndex();
+ int FrameIndex = MI.getOperand(i).getIndex();
int Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) +
MF.getFrameInfo()->getStackSize() + SPAdj;
}
unsigned Opcode = MI.getOpcode();
- const TargetInstrDescriptor &Desc = TII.get(Opcode);
+ const TargetInstrDescriptor &Desc = *MI.getDesc();
unsigned AddrMode = (Desc.TSFlags & ARMII::AddrModeMask);
bool isSub = false;
// MI would expand into a large number of instructions. Don't try to
// simplify the immediate.
if (NumMIs > 2) {
- emitThumbRegPlusImmediate(MBB, II, DestReg, FrameReg, Offset, TII);
+ emitThumbRegPlusImmediate(MBB, II, DestReg, FrameReg, Offset, TII, *this);
MBB.erase(II);
return;
}
MI.getOperand(i+1).ChangeToImmediate(Mask);
Offset = (Offset - Mask * Scale);
MachineBasicBlock::iterator NII = next(II);
- emitThumbRegPlusImmediate(MBB, NII, DestReg, DestReg, Offset, TII);
+ emitThumbRegPlusImmediate(MBB, NII, DestReg, DestReg, Offset, TII, *this);
} else {
// Translate r0 = add sp, -imm to
// r0 = -imm (this is then translated into a series of instructons)
// r0 = add r0, sp
- emitThumbConstant(MBB, II, DestReg, Offset, TII);
+ emitThumbConstant(MBB, II, DestReg, Offset, TII, *this);
MI.setInstrDescriptor(TII.get(ARM::tADDhirr));
MI.getOperand(i).ChangeToRegister(DestReg, false, false, true);
MI.getOperand(i+1).ChangeToRegister(FrameReg, false);
assert(Offset && "This code isn't needed if offset already handled!");
if (isThumb) {
- if (TII.isLoad(Opcode)) {
+ if (Desc.isSimpleLoad()) {
// Use the destination register to materialize sp + offset.
unsigned TmpReg = MI.getOperand(0).getReg();
bool UseRR = false;
if (Opcode == ARM::tRestore) {
if (FrameReg == ARM::SP)
- emitThumbRegPlusImmInReg(MBB, II, TmpReg, FrameReg,Offset,false,TII);
+ emitThumbRegPlusImmInReg(MBB, II, TmpReg, FrameReg,
+ Offset, false, TII, *this);
else {
- emitLoadConstPool(MBB, II, TmpReg, ARMCC::AL, Offset, TII, true);
+ emitLoadConstPool(MBB, II, TmpReg, Offset, ARMCC::AL, 0, TII, true);
UseRR = true;
}
} else
- emitThumbRegPlusImmediate(MBB, II, TmpReg, FrameReg, Offset, TII);
+ emitThumbRegPlusImmediate(MBB, II, TmpReg, FrameReg, Offset, TII, *this);
MI.setInstrDescriptor(TII.get(ARM::tLDR));
MI.getOperand(i).ChangeToRegister(TmpReg, false, false, true);
if (UseRR)
- MI.addRegOperand(FrameReg, false); // Use [reg, reg] addrmode.
- else
- MI.addRegOperand(0, false); // tLDR has an extra register operand.
- } else if (TII.isStore(Opcode)) {
+ // Use [reg, reg] addrmode.
+ MI.addOperand(MachineOperand::CreateReg(FrameReg, false));
+ else // tLDR has an extra register operand.
+ MI.addOperand(MachineOperand::CreateReg(0, false));
+ } else if (Desc.mayStore()) {
// FIXME! This is horrific!!! We need register scavenging.
// Our temporary workaround has marked r3 unavailable. Of course, r3 is
// also a ABI register so it's possible that is is the register that is
.addReg(ARM::R3, false, false, true);
if (Opcode == ARM::tSpill) {
if (FrameReg == ARM::SP)
- emitThumbRegPlusImmInReg(MBB, II, TmpReg, FrameReg,Offset,false,TII);
+ emitThumbRegPlusImmInReg(MBB, II, TmpReg, FrameReg,
+ Offset, false, TII, *this);
else {
- emitLoadConstPool(MBB, II, TmpReg, ARMCC::AL, Offset, TII, true);
+ emitLoadConstPool(MBB, II, TmpReg, Offset, ARMCC::AL, 0, TII, true);
UseRR = true;
}
} else
- emitThumbRegPlusImmediate(MBB, II, TmpReg, FrameReg, Offset, TII);
+ emitThumbRegPlusImmediate(MBB, II, TmpReg, FrameReg, Offset, TII, *this);
MI.setInstrDescriptor(TII.get(ARM::tSTR));
MI.getOperand(i).ChangeToRegister(TmpReg, false, false, true);
- if (UseRR)
- MI.addRegOperand(FrameReg, false); // Use [reg, reg] addrmode.
- else
- MI.addRegOperand(0, false); // tSTR has an extra register operand.
+ if (UseRR) // Use [reg, reg] addrmode.
+ MI.addOperand(MachineOperand::CreateReg(FrameReg, false));
+ else // tSTR has an extra register operand.
+ MI.addOperand(MachineOperand::CreateReg(0, false));
MachineBasicBlock::iterator NII = next(II);
if (ValReg == ARM::R3)
ScratchReg = RS->scavengeRegister(&ARM::GPRRegClass, II, SPAdj);
int PIdx = MI.findFirstPredOperandIdx();
ARMCC::CondCodes Pred = (PIdx == -1)
- ? ARMCC::AL : (ARMCC::CondCodes)MI.getOperand(PIdx).getImmedValue();
- emitARMRegPlusImmediate(MBB, II, ScratchReg, FrameReg, Pred,
- isSub ? -Offset : Offset, TII);
+ ? ARMCC::AL : (ARMCC::CondCodes)MI.getOperand(PIdx).getImm();
+ unsigned PredReg = (PIdx == -1) ? 0 : MI.getOperand(PIdx+1).getReg();
+ emitARMRegPlusImmediate(MBB, II, ScratchReg, FrameReg,
+ isSub ? -Offset : Offset, Pred, PredReg, TII);
MI.getOperand(i).ChangeToRegister(ScratchReg, false, false, true);
}
}
for (unsigned i = 0; CSRegs[i]; ++i) {
unsigned Reg = CSRegs[i];
bool Spilled = false;
- if (MF.isPhysRegUsed(Reg)) {
+ if (MF.getRegInfo().isPhysRegUsed(Reg)) {
AFI->setCSRegisterIsSpilled(Reg);
Spilled = true;
CanEliminateFrame = false;
} else {
// Check alias registers too.
for (const unsigned *Aliases = getAliasSet(Reg); *Aliases; ++Aliases) {
- if (MF.isPhysRegUsed(*Aliases)) {
+ if (MF.getRegInfo().isPhysRegUsed(*Aliases)) {
Spilled = true;
CanEliminateFrame = false;
}
// If LR is not spilled, but at least one of R4, R5, R6, and R7 is spilled.
// Spill LR as well so we can fold BX_RET to the registers restore (LDM).
if (!LRSpilled && CS1Spilled) {
- MF.setPhysRegUsed(ARM::LR);
+ MF.getRegInfo().setPhysRegUsed(ARM::LR);
AFI->setCSRegisterIsSpilled(ARM::LR);
NumGPRSpills++;
UnspilledCS1GPRs.erase(std::find(UnspilledCS1GPRs.begin(),
// Darwin ABI requires FP to point to the stack slot that contains the
// previous FP.
if (STI.isTargetDarwin() || hasFP(MF)) {
- MF.setPhysRegUsed(FramePtr);
+ MF.getRegInfo().setPhysRegUsed(FramePtr);
NumGPRSpills++;
}
unsigned Reg = UnspilledCS1GPRs[i];
// Don't spiil high register if the function is thumb
if (!AFI->isThumbFunction() || isLowRegister(Reg) || Reg == ARM::LR) {
- MF.setPhysRegUsed(Reg);
+ MF.getRegInfo().setPhysRegUsed(Reg);
AFI->setCSRegisterIsSpilled(Reg);
if (!isReservedReg(MF, Reg))
ExtraCSSpill = true;
} else if (!UnspilledCS2GPRs.empty() &&
!AFI->isThumbFunction()) {
unsigned Reg = UnspilledCS2GPRs.front();
- MF.setPhysRegUsed(Reg);
+ MF.getRegInfo().setPhysRegUsed(Reg);
AFI->setCSRegisterIsSpilled(Reg);
if (!isReservedReg(MF, Reg))
ExtraCSSpill = true;
}
if (Extras.size() && NumExtras == 0) {
for (unsigned i = 0, e = Extras.size(); i != e; ++i) {
- MF.setPhysRegUsed(Extras[i]);
+ MF.getRegInfo().setPhysRegUsed(Extras[i]);
AFI->setCSRegisterIsSpilled(Extras[i]);
}
} else {
}
if (ForceLRSpill) {
- MF.setPhysRegUsed(ARM::LR);
+ MF.getRegInfo().setPhysRegUsed(ARM::LR);
AFI->setCSRegisterIsSpilled(ARM::LR);
AFI->setLRIsSpilledForFarJump(true);
}
if (isThumb) {
// Check if R3 is live in. It might have to be used as a scratch register.
- for (MachineFunction::livein_iterator I=MF.livein_begin(),E=MF.livein_end();
- I != E; ++I) {
- if ((*I).first == ARM::R3) {
+ for (MachineRegisterInfo::livein_iterator I =MF.getRegInfo().livein_begin(),
+ E = MF.getRegInfo().livein_end(); I != E; ++I) {
+ if (I->first == ARM::R3) {
AFI->setR3IsLiveIn(true);
break;
}
int FramePtrSpillFI = 0;
if (VARegSaveSize)
- emitSPUpdate(MBB, MBBI, ARMCC::AL, -VARegSaveSize, isThumb, TII);
+ emitSPUpdate(MBB, MBBI, -VARegSaveSize, ARMCC::AL, 0, isThumb, TII, *this);
if (!AFI->hasStackFrame()) {
if (NumBytes != 0)
- emitSPUpdate(MBB, MBBI, ARMCC::AL, -NumBytes, isThumb, TII);
+ emitSPUpdate(MBB, MBBI, -NumBytes, ARMCC::AL, 0, isThumb, TII, *this);
return;
}
if (!isThumb) {
// Build the new SUBri to adjust SP for integer callee-save spill area 1.
- emitSPUpdate(MBB, MBBI, ARMCC::AL, -GPRCS1Size, isThumb, TII);
+ emitSPUpdate(MBB, MBBI, -GPRCS1Size, ARMCC::AL, 0, isThumb, TII, *this);
movePastCSLoadStoreOps(MBB, MBBI, ARM::STR, 1, STI);
} else if (MBBI != MBB.end() && MBBI->getOpcode() == ARM::tPUSH)
++MBBI;
MachineInstrBuilder MIB =
BuildMI(MBB, MBBI, TII.get(isThumb ? ARM::tADDrSPi : ARM::ADDri),FramePtr)
.addFrameIndex(FramePtrSpillFI).addImm(0);
- if (!isThumb) MIB.addImm(ARMCC::AL);
+ if (!isThumb) AddDefaultCC(AddDefaultPred(MIB));
}
if (!isThumb) {
// Build the new SUBri to adjust SP for integer callee-save spill area 2.
- emitSPUpdate(MBB, MBBI, ARMCC::AL, -GPRCS2Size, false, TII);
+ emitSPUpdate(MBB, MBBI, -GPRCS2Size, ARMCC::AL, 0, false, TII, *this);
// Build the new SUBri to adjust SP for FP callee-save spill area.
movePastCSLoadStoreOps(MBB, MBBI, ARM::STR, 2, STI);
- emitSPUpdate(MBB, MBBI, ARMCC::AL, -DPRCSSize, false, TII);
+ emitSPUpdate(MBB, MBBI, -DPRCSSize, ARMCC::AL, 0, false, TII, *this);
}
// Determine starting offsets of spill areas.
// Insert it after all the callee-save spills.
if (!isThumb)
movePastCSLoadStoreOps(MBB, MBBI, ARM::FSTD, 3, STI);
- emitSPUpdate(MBB, MBBI, ARMCC::AL, -NumBytes, isThumb, TII);
+ emitSPUpdate(MBB, MBBI, -NumBytes, ARMCC::AL, 0, isThumb, TII, *this);
}
if(STI.isTargetELF() && hasFP(MF)) {
int NumBytes = (int)MFI->getStackSize();
if (!AFI->hasStackFrame()) {
if (NumBytes != 0)
- emitSPUpdate(MBB, MBBI, ARMCC::AL, NumBytes, isThumb, TII);
+ emitSPUpdate(MBB, MBBI, NumBytes, ARMCC::AL, 0, isThumb, TII, *this);
} else {
// Unwind MBBI to point to first LDR / FLDD.
const unsigned *CSRegs = getCalleeSavedRegs();
// Reset SP based on frame pointer only if the stack frame extends beyond
// frame pointer stack slot or target is ELF and the function has FP.
if (NumBytes)
- emitThumbRegPlusImmediate(MBB, MBBI, ARM::SP, FramePtr, -NumBytes, TII);
+ emitThumbRegPlusImmediate(MBB, MBBI, ARM::SP, FramePtr, -NumBytes,
+ TII, *this);
else
BuildMI(MBB, MBBI, TII.get(ARM::tMOVr), ARM::SP).addReg(FramePtr);
} else {
&MBB.front() != MBBI &&
prior(MBBI)->getOpcode() == ARM::tPOP) {
MachineBasicBlock::iterator PMBBI = prior(MBBI);
- emitSPUpdate(MBB, PMBBI, ARMCC::AL, NumBytes, isThumb, TII);
+ emitSPUpdate(MBB, PMBBI, NumBytes, ARMCC::AL, 0, isThumb, TII, *this);
} else
- emitSPUpdate(MBB, MBBI, ARMCC::AL, NumBytes, isThumb, TII);
+ emitSPUpdate(MBB, MBBI, NumBytes, ARMCC::AL, 0, isThumb, TII, *this);
}
} else {
// Darwin ABI requires FP to point to the stack slot that contains the
hasFP(MF))
if (NumBytes)
BuildMI(MBB, MBBI, TII.get(ARM::SUBri), ARM::SP).addReg(FramePtr)
- .addImm(NumBytes).addImm((unsigned)ARMCC::AL);
+ .addImm(NumBytes)
+ .addImm((unsigned)ARMCC::AL).addReg(0).addReg(0);
else
BuildMI(MBB, MBBI, TII.get(ARM::MOVr), ARM::SP).addReg(FramePtr)
- .addImm((unsigned)ARMCC::AL);
+ .addImm((unsigned)ARMCC::AL).addReg(0).addReg(0);
} else if (NumBytes) {
- emitSPUpdate(MBB, MBBI, ARMCC::AL, NumBytes, false, TII);
+ emitSPUpdate(MBB, MBBI, NumBytes, ARMCC::AL, 0, false, TII, *this);
}
// Move SP to start of integer callee save spill area 2.
movePastCSLoadStoreOps(MBB, MBBI, ARM::FLDD, 3, STI);
- emitSPUpdate(MBB, MBBI, ARMCC::AL, AFI->getDPRCalleeSavedAreaSize(),
- false, TII);
+ emitSPUpdate(MBB, MBBI, AFI->getDPRCalleeSavedAreaSize(), ARMCC::AL, 0,
+ false, TII, *this);
// Move SP to start of integer callee save spill area 1.
movePastCSLoadStoreOps(MBB, MBBI, ARM::LDR, 2, STI);
- emitSPUpdate(MBB, MBBI, ARMCC::AL, AFI->getGPRCalleeSavedArea2Size(),
- false, TII);
+ emitSPUpdate(MBB, MBBI, AFI->getGPRCalleeSavedArea2Size(), ARMCC::AL, 0,
+ false, TII, *this);
// Move SP to SP upon entry to the function.
movePastCSLoadStoreOps(MBB, MBBI, ARM::LDR, 1, STI);
- emitSPUpdate(MBB, MBBI, ARMCC::AL, AFI->getGPRCalleeSavedArea1Size(),
- false, TII);
+ emitSPUpdate(MBB, MBBI, AFI->getGPRCalleeSavedArea1Size(), ARMCC::AL, 0,
+ false, TII, *this);
}
}
// FIXME: Verify this is still ok when R3 is no longer being reserved.
BuildMI(MBB, MBBI, TII.get(ARM::tPOP)).addReg(ARM::R3);
- emitSPUpdate(MBB, MBBI, ARMCC::AL, VARegSaveSize, isThumb, TII);
+ emitSPUpdate(MBB, MBBI, VARegSaveSize, ARMCC::AL, 0, isThumb, TII, *this);
if (isThumb) {
BuildMI(MBB, MBBI, TII.get(ARM::tBX_RET_vararg)).addReg(ARM::R3);
return 0;
}
+int ARMRegisterInfo::getDwarfRegNum(unsigned RegNum, bool isEH) const {
+ assert(0 && "What is the dwarf register number");
+ return -1;
+}
+
#include "ARMGenRegisterInfo.inc"
projects / oota-llvm.git / blobdiff