RI(*this, STI) {
}
-const TargetRegisterClass *ARMInstrInfo::getPointerRegClass() const {
- return &ARM::GPRRegClass;
-}
/// Return true if the instruction is a register to register move and
/// leave the source and dest operands in the passed parameters.
///
bool ARMInstrInfo::isMoveInstr(const MachineInstr &MI,
- unsigned &SrcReg, unsigned &DstReg) const {
+ unsigned &SrcReg, unsigned &DstReg,
+ unsigned& SrcSubIdx, unsigned& DstSubIdx) const {
+ SrcSubIdx = DstSubIdx = 0; // No sub-registers.
+
unsigned oc = MI.getOpcode();
switch (oc) {
default:
case ARM::MOVr:
case ARM::tMOVr:
assert(MI.getDesc().getNumOperands() >= 2 &&
- MI.getOperand(0).isRegister() &&
- MI.getOperand(1).isRegister() &&
+ MI.getOperand(0).isReg() &&
+ MI.getOperand(1).isReg() &&
"Invalid ARM MOV instruction");
SrcReg = MI.getOperand(1).getReg();
DstReg = MI.getOperand(0).getReg();
}
}
-unsigned ARMInstrInfo::isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const{
+unsigned ARMInstrInfo::isLoadFromStackSlot(const MachineInstr *MI,
+ int &FrameIndex) const {
switch (MI->getOpcode()) {
default: break;
case ARM::LDR:
- if (MI->getOperand(1).isFrameIndex() &&
- MI->getOperand(2).isRegister() &&
- MI->getOperand(3).isImmediate() &&
+ if (MI->getOperand(1).isFI() &&
+ MI->getOperand(2).isReg() &&
+ MI->getOperand(3).isImm() &&
MI->getOperand(2).getReg() == 0 &&
MI->getOperand(3).getImm() == 0) {
FrameIndex = MI->getOperand(1).getIndex();
break;
case ARM::FLDD:
case ARM::FLDS:
- if (MI->getOperand(1).isFrameIndex() &&
- MI->getOperand(2).isImmediate() &&
+ if (MI->getOperand(1).isFI() &&
+ MI->getOperand(2).isImm() &&
MI->getOperand(2).getImm() == 0) {
FrameIndex = MI->getOperand(1).getIndex();
return MI->getOperand(0).getReg();
}
break;
case ARM::tRestore:
- if (MI->getOperand(1).isFrameIndex() &&
- MI->getOperand(2).isImmediate() &&
+ if (MI->getOperand(1).isFI() &&
+ MI->getOperand(2).isImm() &&
MI->getOperand(2).getImm() == 0) {
FrameIndex = MI->getOperand(1).getIndex();
return MI->getOperand(0).getReg();
return 0;
}
-unsigned ARMInstrInfo::isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const {
+unsigned ARMInstrInfo::isStoreToStackSlot(const MachineInstr *MI,
+ int &FrameIndex) const {
switch (MI->getOpcode()) {
default: break;
case ARM::STR:
- if (MI->getOperand(1).isFrameIndex() &&
- MI->getOperand(2).isRegister() &&
- MI->getOperand(3).isImmediate() &&
+ if (MI->getOperand(1).isFI() &&
+ MI->getOperand(2).isReg() &&
+ MI->getOperand(3).isImm() &&
MI->getOperand(2).getReg() == 0 &&
MI->getOperand(3).getImm() == 0) {
FrameIndex = MI->getOperand(1).getIndex();
break;
case ARM::FSTD:
case ARM::FSTS:
- if (MI->getOperand(1).isFrameIndex() &&
- MI->getOperand(2).isImmediate() &&
+ if (MI->getOperand(1).isFI() &&
+ MI->getOperand(2).isImm() &&
MI->getOperand(2).getImm() == 0) {
FrameIndex = MI->getOperand(1).getIndex();
return MI->getOperand(0).getReg();
}
break;
case ARM::tSpill:
- if (MI->getOperand(1).isFrameIndex() &&
- MI->getOperand(2).isImmediate() &&
+ if (MI->getOperand(1).isFI() &&
+ MI->getOperand(2).isImm() &&
MI->getOperand(2).getImm() == 0) {
FrameIndex = MI->getOperand(1).getIndex();
return MI->getOperand(0).getReg();
return 0;
}
+void ARMInstrInfo::reMaterialize(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ unsigned DestReg,
+ const MachineInstr *Orig) const {
+ if (Orig->getOpcode() == ARM::MOVi2pieces) {
+ RI.emitLoadConstPool(MBB, I, DestReg, Orig->getOperand(1).getImm(),
+ Orig->getOperand(2).getImm(),
+ Orig->getOperand(3).getReg(), this, false);
+ return;
+ }
+
+ MachineInstr *MI = MBB.getParent()->CloneMachineInstr(Orig);
+ MI->getOperand(0).setReg(DestReg);
+ MBB.insert(I, MI);
+}
+
static unsigned getUnindexedOpcode(unsigned Opc) {
switch (Opc) {
default: break;
MachineInstr *
ARMInstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
MachineBasicBlock::iterator &MBBI,
- LiveVariables &LV) const {
+ LiveVariables *LV) const {
if (!EnableARM3Addr)
return NULL;
MachineInstr *MI = MBBI;
+ MachineFunction &MF = *MI->getParent()->getParent();
unsigned TSFlags = MI->getDesc().TSFlags;
bool isPre = false;
switch ((TSFlags & ARMII::IndexModeMask) >> ARMII::IndexModeShift) {
// Can't encode it in a so_imm operand. This transformation will
// add more than 1 instruction. Abandon!
return NULL;
- UpdateMI = BuildMI(get(isSub ? ARM::SUBri : ARM::ADDri), WBReg)
+ UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBri : ARM::ADDri), WBReg)
.addReg(BaseReg).addImm(SOImmVal)
.addImm(Pred).addReg(0).addReg(0);
} else if (Amt != 0) {
ARM_AM::ShiftOpc ShOpc = ARM_AM::getAM2ShiftOpc(OffImm);
unsigned SOOpc = ARM_AM::getSORegOpc(ShOpc, Amt);
- UpdateMI = BuildMI(get(isSub ? ARM::SUBrs : ARM::ADDrs), WBReg)
+ UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBrs : ARM::ADDrs), WBReg)
.addReg(BaseReg).addReg(OffReg).addReg(0).addImm(SOOpc)
.addImm(Pred).addReg(0).addReg(0);
} else
- UpdateMI = BuildMI(get(isSub ? ARM::SUBrr : ARM::ADDrr), WBReg)
+ UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBrr : ARM::ADDrr), WBReg)
.addReg(BaseReg).addReg(OffReg)
.addImm(Pred).addReg(0).addReg(0);
break;
unsigned Amt = ARM_AM::getAM3Offset(OffImm);
if (OffReg == 0)
// Immediate is 8-bits. It's guaranteed to fit in a so_imm operand.
- UpdateMI = BuildMI(get(isSub ? ARM::SUBri : ARM::ADDri), WBReg)
+ UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBri : ARM::ADDri), WBReg)
.addReg(BaseReg).addImm(Amt)
.addImm(Pred).addReg(0).addReg(0);
else
- UpdateMI = BuildMI(get(isSub ? ARM::SUBrr : ARM::ADDrr), WBReg)
+ UpdateMI = BuildMI(MF, get(isSub ? ARM::SUBrr : ARM::ADDrr), WBReg)
.addReg(BaseReg).addReg(OffReg)
.addImm(Pred).addReg(0).addReg(0);
break;
std::vector<MachineInstr*> NewMIs;
if (isPre) {
if (isLoad)
- MemMI = BuildMI(get(MemOpc), MI->getOperand(0).getReg())
+ MemMI = BuildMI(MF, get(MemOpc), MI->getOperand(0).getReg())
.addReg(WBReg).addReg(0).addImm(0).addImm(Pred);
else
- MemMI = BuildMI(get(MemOpc)).addReg(MI->getOperand(1).getReg())
+ MemMI = BuildMI(MF, get(MemOpc)).addReg(MI->getOperand(1).getReg())
.addReg(WBReg).addReg(0).addImm(0).addImm(Pred);
NewMIs.push_back(MemMI);
NewMIs.push_back(UpdateMI);
} else {
if (isLoad)
- MemMI = BuildMI(get(MemOpc), MI->getOperand(0).getReg())
+ MemMI = BuildMI(MF, get(MemOpc), MI->getOperand(0).getReg())
.addReg(BaseReg).addReg(0).addImm(0).addImm(Pred);
else
- MemMI = BuildMI(get(MemOpc)).addReg(MI->getOperand(1).getReg())
+ MemMI = BuildMI(MF, get(MemOpc)).addReg(MI->getOperand(1).getReg())
.addReg(BaseReg).addReg(0).addImm(0).addImm(Pred);
if (WB.isDead())
UpdateMI->getOperand(0).setIsDead();
}
// Transfer LiveVariables states, kill / dead info.
- for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
- MachineOperand &MO = MI->getOperand(i);
- if (MO.isRegister() && MO.getReg() &&
- TargetRegisterInfo::isVirtualRegister(MO.getReg())) {
- unsigned Reg = MO.getReg();
- LiveVariables::VarInfo &VI = LV.getVarInfo(Reg);
- if (MO.isDef()) {
- MachineInstr *NewMI = (Reg == WBReg) ? UpdateMI : MemMI;
- if (MO.isDead())
- LV.addVirtualRegisterDead(Reg, NewMI);
- }
- if (MO.isUse() && MO.isKill()) {
- for (unsigned j = 0; j < 2; ++j) {
- // Look at the two new MI's in reverse order.
- MachineInstr *NewMI = NewMIs[j];
- if (!NewMI->readsRegister(Reg))
- continue;
- LV.addVirtualRegisterKilled(Reg, NewMI);
- if (VI.removeKill(MI))
- VI.Kills.push_back(NewMI);
- break;
+ if (LV) {
+ for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
+ MachineOperand &MO = MI->getOperand(i);
+ if (MO.isReg() && MO.getReg() &&
+ TargetRegisterInfo::isVirtualRegister(MO.getReg())) {
+ unsigned Reg = MO.getReg();
+
+ LiveVariables::VarInfo &VI = LV->getVarInfo(Reg);
+ if (MO.isDef()) {
+ MachineInstr *NewMI = (Reg == WBReg) ? UpdateMI : MemMI;
+ if (MO.isDead())
+ LV->addVirtualRegisterDead(Reg, NewMI);
+ }
+ if (MO.isUse() && MO.isKill()) {
+ for (unsigned j = 0; j < 2; ++j) {
+ // Look at the two new MI's in reverse order.
+ MachineInstr *NewMI = NewMIs[j];
+ if (!NewMI->readsRegister(Reg))
+ continue;
+ LV->addVirtualRegisterKilled(Reg, NewMI);
+ if (VI.removeKill(MI))
+ VI.Kills.push_back(NewMI);
+ break;
+ }
}
}
}
// Branch analysis.
bool ARMInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB,MachineBasicBlock *&TBB,
MachineBasicBlock *&FBB,
- std::vector<MachineOperand> &Cond) const {
+ SmallVectorImpl<MachineOperand> &Cond,
+ bool AllowModify) const {
// If the block has no terminators, it just falls into the block after it.
MachineBasicBlock::iterator I = MBB.end();
if (I == MBB.begin() || !isUnpredicatedTerminator(--I))
(LastOpc == ARM::B || LastOpc == ARM::tB)) {
TBB = SecondLastInst->getOperand(0).getMBB();
I = LastInst;
- I->eraseFromParent();
+ if (AllowModify)
+ I->eraseFromParent();
return false;
}
SecondLastOpc == ARM::BR_JTadd || SecondLastOpc==ARM::tBR_JTr) &&
(LastOpc == ARM::B || LastOpc == ARM::tB)) {
I = LastInst;
- I->eraseFromParent();
+ if (AllowModify)
+ I->eraseFromParent();
return true;
}
unsigned ARMInstrInfo::InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
MachineBasicBlock *FBB,
- const std::vector<MachineOperand> &Cond) const {
+ const SmallVectorImpl<MachineOperand> &Cond) const {
MachineFunction &MF = *MBB.getParent();
ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
int BOpc = AFI->isThumbFunction() ? ARM::tB : ARM::B;
return 2;
}
-void ARMInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
+bool ARMInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *DestRC,
const TargetRegisterClass *SrcRC) const {
if (DestRC != SrcRC) {
- cerr << "Not yet supported!";
- abort();
+ // Not yet supported!
+ return false;
}
if (DestRC == ARM::GPRRegisterClass) {
AddDefaultPred(BuildMI(MBB, I, get(ARM::FCPYD), DestReg)
.addReg(SrcReg));
else
- abort();
+ return false;
+
+ return true;
}
static const MachineInstrBuilder &ARMInstrAddOperand(MachineInstrBuilder &MIB,
MachineOperand &MO) {
- if (MO.isRegister())
+ if (MO.isReg())
MIB = MIB.addReg(MO.getReg(), MO.isDef(), MO.isImplicit());
- else if (MO.isImmediate())
+ else if (MO.isImm())
MIB = MIB.addImm(MO.getImm());
- else if (MO.isFrameIndex())
+ else if (MO.isFI())
MIB = MIB.addFrameIndex(MO.getIndex());
else
assert(0 && "Unknown operand for ARMInstrAddOperand!");
if (RC == ARM::GPRRegisterClass) {
ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
if (AFI->isThumbFunction()) {
- Opc = Addr[0].isFrameIndex() ? ARM::tSpill : ARM::tSTR;
+ Opc = Addr[0].isFI() ? ARM::tSpill : ARM::tSTR;
MachineInstrBuilder MIB =
- BuildMI(get(Opc)).addReg(SrcReg, false, false, isKill);
+ BuildMI(MF, get(Opc)).addReg(SrcReg, false, false, isKill);
for (unsigned i = 0, e = Addr.size(); i != e; ++i)
MIB = ARMInstrAddOperand(MIB, Addr[i]);
NewMIs.push_back(MIB);
}
MachineInstrBuilder MIB =
- BuildMI(get(Opc)).addReg(SrcReg, false, false, isKill);
+ BuildMI(MF, get(Opc)).addReg(SrcReg, false, false, isKill);
for (unsigned i = 0, e = Addr.size(); i != e; ++i)
MIB = ARMInstrAddOperand(MIB, Addr[i]);
AddDefaultPred(MIB);
if (RC == ARM::GPRRegisterClass) {
ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
if (AFI->isThumbFunction()) {
- Opc = Addr[0].isFrameIndex() ? ARM::tRestore : ARM::tLDR;
- MachineInstrBuilder MIB = BuildMI(get(Opc), DestReg);
+ Opc = Addr[0].isFI() ? ARM::tRestore : ARM::tLDR;
+ MachineInstrBuilder MIB = BuildMI(MF, get(Opc), DestReg);
for (unsigned i = 0, e = Addr.size(); i != e; ++i)
MIB = ARMInstrAddOperand(MIB, Addr[i]);
NewMIs.push_back(MIB);
Opc = ARM::FLDS;
}
- MachineInstrBuilder MIB = BuildMI(get(Opc), DestReg);
+ MachineInstrBuilder MIB = BuildMI(MF, get(Opc), DestReg);
for (unsigned i = 0, e = Addr.size(); i != e; ++i)
MIB = ARMInstrAddOperand(MIB, Addr[i]);
AddDefaultPred(MIB);
return false;
bool isVarArg = AFI->getVarArgsRegSaveSize() > 0;
- MachineInstr *PopMI = new MachineInstr(get(ARM::tPOP));
+ MachineInstr *PopMI = MF.CreateMachineInstr(get(ARM::tPOP),MI->getDebugLoc());
MBB.insert(MI, PopMI);
for (unsigned i = CSI.size(); i != 0; --i) {
unsigned Reg = CSI[i-1].getReg();
return true;
}
-MachineInstr *ARMInstrInfo::foldMemoryOperand(MachineFunction &MF,
- MachineInstr *MI,
- SmallVectorImpl<unsigned> &Ops,
- int FI) const {
+MachineInstr *ARMInstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
+ MachineInstr *MI,
+ const SmallVectorImpl<unsigned> &Ops,
+ int FI) const {
if (Ops.size() != 1) return NULL;
unsigned OpNum = Ops[0];
unsigned PredReg = MI->getOperand(3).getReg();
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
- NewMI = BuildMI(get(ARM::STR)).addReg(SrcReg).addFrameIndex(FI)
- .addReg(0).addImm(0).addImm(Pred).addReg(PredReg);
+ bool isKill = MI->getOperand(1).isKill();
+ NewMI = BuildMI(MF, get(ARM::STR)).addReg(SrcReg, false, false, isKill)
+ .addFrameIndex(FI).addReg(0).addImm(0).addImm(Pred).addReg(PredReg);
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
- NewMI = BuildMI(get(ARM::LDR), DstReg).addFrameIndex(FI).addReg(0)
- .addImm(0).addImm(Pred).addReg(PredReg);
+ bool isDead = MI->getOperand(0).isDead();
+ NewMI = BuildMI(MF, get(ARM::LDR)).addReg(DstReg, true, false, false, isDead)
+ .addFrameIndex(FI).addReg(0).addImm(0).addImm(Pred).addReg(PredReg);
}
break;
}
case ARM::tMOVr: {
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
+ bool isKill = MI->getOperand(1).isKill();
if (RI.isPhysicalRegister(SrcReg) && !RI.isLowRegister(SrcReg))
// tSpill cannot take a high register operand.
break;
- NewMI = BuildMI(get(ARM::tSpill)).addReg(SrcReg).addFrameIndex(FI)
- .addImm(0);
+ NewMI = BuildMI(MF, get(ARM::tSpill)).addReg(SrcReg, false, false, isKill)
+ .addFrameIndex(FI).addImm(0);
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
if (RI.isPhysicalRegister(DstReg) && !RI.isLowRegister(DstReg))
// tRestore cannot target a high register operand.
break;
- NewMI = BuildMI(get(ARM::tRestore), DstReg).addFrameIndex(FI)
- .addImm(0);
+ bool isDead = MI->getOperand(0).isDead();
+ NewMI = BuildMI(MF, get(ARM::tRestore))
+ .addReg(DstReg, true, false, false, isDead)
+ .addFrameIndex(FI).addImm(0);
}
break;
}
unsigned PredReg = MI->getOperand(3).getReg();
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
- NewMI = BuildMI(get(ARM::FSTS)).addReg(SrcReg).addFrameIndex(FI)
+ NewMI = BuildMI(MF, get(ARM::FSTS)).addReg(SrcReg).addFrameIndex(FI)
.addImm(0).addImm(Pred).addReg(PredReg);
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
- NewMI = BuildMI(get(ARM::FLDS), DstReg).addFrameIndex(FI)
+ NewMI = BuildMI(MF, get(ARM::FLDS), DstReg).addFrameIndex(FI)
.addImm(0).addImm(Pred).addReg(PredReg);
}
break;
unsigned PredReg = MI->getOperand(3).getReg();
if (OpNum == 0) { // move -> store
unsigned SrcReg = MI->getOperand(1).getReg();
- NewMI = BuildMI(get(ARM::FSTD)).addReg(SrcReg).addFrameIndex(FI)
- .addImm(0).addImm(Pred).addReg(PredReg);
+ bool isKill = MI->getOperand(1).isKill();
+ NewMI = BuildMI(MF, get(ARM::FSTD)).addReg(SrcReg, false, false, isKill)
+ .addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
} else { // move -> load
unsigned DstReg = MI->getOperand(0).getReg();
- NewMI = BuildMI(get(ARM::FLDD), DstReg).addFrameIndex(FI)
- .addImm(0).addImm(Pred).addReg(PredReg);
+ bool isDead = MI->getOperand(0).isDead();
+ NewMI = BuildMI(MF, get(ARM::FLDD)).addReg(DstReg, true, false, false, isDead)
+ .addFrameIndex(FI).addImm(0).addImm(Pred).addReg(PredReg);
}
break;
}
}
- if (NewMI)
- NewMI->copyKillDeadInfo(MI);
return NewMI;
}
-bool ARMInstrInfo::canFoldMemoryOperand(MachineInstr *MI,
- SmallVectorImpl<unsigned> &Ops) const {
+bool ARMInstrInfo::canFoldMemoryOperand(const MachineInstr *MI,
+ const SmallVectorImpl<unsigned> &Ops) const {
if (Ops.size() != 1) return false;
unsigned OpNum = Ops[0];
return false;
}
-bool ARMInstrInfo::BlockHasNoFallThrough(MachineBasicBlock &MBB) const {
+bool ARMInstrInfo::BlockHasNoFallThrough(const MachineBasicBlock &MBB) const {
if (MBB.empty()) return false;
switch (MBB.back().getOpcode()) {
}
bool ARMInstrInfo::
-ReverseBranchCondition(std::vector<MachineOperand> &Cond) const {
+ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const {
ARMCC::CondCodes CC = (ARMCC::CondCodes)(int)Cond[0].getImm();
Cond[0].setImm(ARMCC::getOppositeCondition(CC));
return false;
}
bool ARMInstrInfo::PredicateInstruction(MachineInstr *MI,
- const std::vector<MachineOperand> &Pred) const {
+ const SmallVectorImpl<MachineOperand> &Pred) const {
unsigned Opc = MI->getOpcode();
if (Opc == ARM::B || Opc == ARM::tB) {
MI->setDesc(get(Opc == ARM::B ? ARM::Bcc : ARM::tBcc));
}
bool
-ARMInstrInfo::SubsumesPredicate(const std::vector<MachineOperand> &Pred1,
- const std::vector<MachineOperand> &Pred2) const{
+ARMInstrInfo::SubsumesPredicate(const SmallVectorImpl<MachineOperand> &Pred1,
+ const SmallVectorImpl<MachineOperand> &Pred2) const{
if (Pred1.size() > 2 || Pred2.size() > 2)
return false;
bool Found = false;
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
const MachineOperand &MO = MI->getOperand(i);
- if (MO.isRegister() && MO.getReg() == ARM::CPSR) {
+ if (MO.isReg() && MO.getReg() == ARM::CPSR) {
Pred.push_back(MO);
Found = true;
}
/// GetInstSize - Return the size of the specified MachineInstr.
///
-unsigned ARM::GetInstSize(MachineInstr *MI) {
- MachineBasicBlock &MBB = *MI->getParent();
+unsigned ARMInstrInfo::GetInstSizeInBytes(const MachineInstr *MI) const {
+ const MachineBasicBlock &MBB = *MI->getParent();
const MachineFunction *MF = MBB.getParent();
const TargetAsmInfo *TAI = MF->getTarget().getTargetAsmInfo();
unsigned TSFlags = TID.TSFlags;
switch ((TSFlags & ARMII::SizeMask) >> ARMII::SizeShift) {
- default:
+ default: {
// If this machine instr is an inline asm, measure it.
if (MI->getOpcode() == ARM::INLINEASM)
return TAI->getInlineAsmLength(MI->getOperand(0).getSymbolName());
- if (MI->getOpcode() == ARM::LABEL)
+ if (MI->isLabel())
return 0;
- if (MI->getOpcode() == TargetInstrInfo::IMPLICIT_DEF)
+ switch (MI->getOpcode()) {
+ default:
+ assert(0 && "Unknown or unset size field for instr!");
+ break;
+ case TargetInstrInfo::IMPLICIT_DEF:
+ case TargetInstrInfo::DECLARE:
+ case TargetInstrInfo::DBG_LABEL:
+ case TargetInstrInfo::EH_LABEL:
return 0;
- assert(0 && "Unknown or unset size field for instr!");
+ }
break;
+ }
case ARMII::Size8Bytes: return 8; // Arm instruction x 2.
case ARMII::Size4Bytes: return 4; // Arm instruction.
case ARMII::Size2Bytes: return 2; // Thumb instruction.
MachineOperand JTOP =
MI->getOperand(NumOps - (TID.isPredicable() ? 3 : 2));
unsigned JTI = JTOP.getIndex();
- MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
+ const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables();
assert(JTI < JT.size());
// Thumb instructions are 2 byte aligned, but JT entries are 4 byte
}
}
}
-}
-
-/// GetFunctionSize - Returns the size of the specified MachineFunction.
-///
-unsigned ARM::GetFunctionSize(MachineFunction &MF) {
- unsigned FnSize = 0;
- for (MachineFunction::iterator MBBI = MF.begin(), E = MF.end();
- MBBI != E; ++MBBI) {
- MachineBasicBlock &MBB = *MBBI;
- for (MachineBasicBlock::iterator I = MBB.begin(),E = MBB.end(); I != E; ++I)
- FnSize += ARM::GetInstSize(I);
- }
- return FnSize;
+ return 0; // Not reached
}
projects / oota-llvm.git / blobdiff