return array_lengthof(XCore_ArgRegs);
}
-bool XCoreRegisterInfo::needsFrameMoves(const MachineFunction &MF)
-{
- const MachineFrameInfo *MFI = MF.getFrameInfo();
- MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
- return (MMI && MMI->hasDebugInfo()) ||
- !MF.getFunction()->doesNotThrow() ||
+bool XCoreRegisterInfo::needsFrameMoves(const MachineFunction &MF) {
+ return MF.getMMI().hasDebugInfo() || !MF.getFunction()->doesNotThrow() ||
UnwindTablesMandatory;
}
return CalleeSavedRegs;
}
-const TargetRegisterClass* const*
-XCoreRegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
- static const TargetRegisterClass * const CalleeSavedRegClasses[] = {
- XCore::GRRegsRegisterClass, XCore::GRRegsRegisterClass,
- XCore::GRRegsRegisterClass, XCore::GRRegsRegisterClass,
- XCore::GRRegsRegisterClass, XCore::GRRegsRegisterClass,
- XCore::GRRegsRegisterClass, XCore::RRegsRegisterClass,
- 0
- };
- return CalleeSavedRegClasses;
-}
-
BitVector XCoreRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
BitVector Reserved(getNumRegs());
Reserved.set(XCore::CP);
}
bool XCoreRegisterInfo::hasFP(const MachineFunction &MF) const {
- return NoFramePointerElim || MF.getFrameInfo()->hasVarSizedObjects();
+ return DisableFramePointerElim(MF) || MF.getFrameInfo()->hasVarSizedObjects();
}
// This function eliminates ADJCALLSTACKDOWN,
MBB.erase(I);
}
-unsigned
+void
XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
- int SPAdj, int *Value,
- RegScavenger *RS) const {
+ int SPAdj, RegScavenger *RS) const {
assert(SPAdj == 0 && "Unexpected");
MachineInstr &MI = *II;
DebugLoc dl = MI.getDebugLoc();
unsigned FramePtr = XCore::R10;
if (!isUs) {
- if (!RS) {
- std::string msg;
- raw_string_ostream Msg(msg);
- Msg << "eliminateFrameIndex Frame size too big: " << Offset;
- llvm_report_error(Msg.str());
- }
+ if (!RS)
+ report_fatal_error("eliminateFrameIndex Frame size too big: " +
+ Twine(Offset));
unsigned ScratchReg = RS->scavengeRegister(XCore::GRRegsRegisterClass, II,
SPAdj);
loadConstant(MBB, II, ScratchReg, Offset, dl);
}
} else {
bool isU6 = isImmU6(Offset);
- if (!isU6 && !isImmU16(Offset)) {
- std::string msg;
- raw_string_ostream Msg(msg);
- Msg << "eliminateFrameIndex Frame size too big: " << Offset;
- llvm_report_error(Msg.str());
- }
+ if (!isU6 && !isImmU16(Offset))
+ report_fatal_error("eliminateFrameIndex Frame size too big: " +
+ Twine(Offset));
switch (MI.getOpcode()) {
int NewOpcode;
}
// Erase old instruction.
MBB.erase(II);
- return 0;
}
void
int FrameIdx;
if (! isVarArg) {
// A fixed offset of 0 allows us to save / restore LR using entsp / retsp.
- FrameIdx = MFI->CreateFixedObject(RC->getSize(), 0);
+ FrameIdx = MFI->CreateFixedObject(RC->getSize(), 0, true);
} else {
- FrameIdx = MFI->CreateStackObject(RC->getSize(), RC->getAlignment());
+ FrameIdx = MFI->CreateStackObject(RC->getSize(), RC->getAlignment(),
+ false);
}
XFI->setUsesLR(FrameIdx);
XFI->setLRSpillSlot(FrameIdx);
if (requiresRegisterScavenging(MF)) {
// Reserve a slot close to SP or frame pointer.
RS->setScavengingFrameIndex(MFI->CreateStackObject(RC->getSize(),
- RC->getAlignment()));
+ RC->getAlignment(),
+ false));
}
if (hasFP(MF)) {
// A callee save register is used to hold the FP.
// This needs saving / restoring in the epilogue / prologue.
XFI->setFPSpillSlot(MFI->CreateStackObject(RC->getSize(),
- RC->getAlignment()));
+ RC->getAlignment(),
+ false));
}
}
// TODO use mkmsk if possible.
if (!isImmU16(Value)) {
// TODO use constant pool.
- std::string msg;
- raw_string_ostream Msg(msg);
- Msg << "loadConstant value too big " << Value;
- llvm_report_error(Msg.str());
+ report_fatal_error("loadConstant value too big " + Twine(Value));
}
int Opcode = isImmU6(Value) ? XCore::LDC_ru6 : XCore::LDC_lru6;
BuildMI(MBB, I, dl, TII.get(Opcode), DstReg).addImm(Value);
assert(Offset%4 == 0 && "Misaligned stack offset");
Offset/=4;
bool isU6 = isImmU6(Offset);
- if (!isU6 && !isImmU16(Offset)) {
- std::string msg;
- raw_string_ostream Msg(msg);
- Msg << "storeToStack offset too big " << Offset;
- llvm_report_error(Msg.str());
- }
+ if (!isU6 && !isImmU16(Offset))
+ report_fatal_error("storeToStack offset too big " + Twine(Offset));
int Opcode = isU6 ? XCore::STWSP_ru6 : XCore::STWSP_lru6;
BuildMI(MBB, I, dl, TII.get(Opcode))
.addReg(SrcReg)
assert(Offset%4 == 0 && "Misaligned stack offset");
Offset/=4;
bool isU6 = isImmU6(Offset);
- if (!isU6 && !isImmU16(Offset)) {
- std::string msg;
- raw_string_ostream Msg(msg);
- Msg << "loadFromStack offset too big " << Offset;
- llvm_report_error(Msg.str());
- }
+ if (!isU6 && !isImmU16(Offset))
+ report_fatal_error("loadFromStack offset too big " + Twine(Offset));
int Opcode = isU6 ? XCore::LDWSP_ru6 : XCore::LDWSP_lru6;
BuildMI(MBB, I, dl, TII.get(Opcode), DstReg)
.addImm(Offset);
MachineBasicBlock &MBB = MF.front(); // Prolog goes in entry BB
MachineBasicBlock::iterator MBBI = MBB.begin();
MachineFrameInfo *MFI = MF.getFrameInfo();
- MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
+ MachineModuleInfo *MMI = &MF.getMMI();
XCoreFunctionInfo *XFI = MF.getInfo<XCoreFunctionInfo>();
- DebugLoc dl = (MBBI != MBB.end() ?
- MBBI->getDebugLoc() : DebugLoc::getUnknownLoc());
+ DebugLoc dl = MBBI != MBB.end() ? MBBI->getDebugLoc() : DebugLoc();
bool FP = hasFP(MF);
if (!isU6 && !isImmU16(FrameSize)) {
// FIXME could emit multiple instructions.
- std::string msg;
- raw_string_ostream Msg(msg);
- Msg << "emitPrologue Frame size too big: " << FrameSize;
- llvm_report_error(Msg.str());
+ report_fatal_error("emitPrologue Frame size too big: " + Twine(FrameSize));
}
bool emitFrameMoves = needsFrameMoves(MF);
std::vector<MachineMove> &Moves = MMI->getFrameMoves();
// Show update of SP.
- unsigned FrameLabelId = MMI->NextLabelID();
- BuildMI(MBB, MBBI, dl, TII.get(XCore::DBG_LABEL)).addImm(FrameLabelId);
+ MCSymbol *FrameLabel = MMI->getContext().CreateTempSymbol();
+ BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(FrameLabel);
MachineLocation SPDst(MachineLocation::VirtualFP);
MachineLocation SPSrc(MachineLocation::VirtualFP, -FrameSize * 4);
- Moves.push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
+ Moves.push_back(MachineMove(FrameLabel, SPDst, SPSrc));
if (LRSavedOnEntry) {
MachineLocation CSDst(MachineLocation::VirtualFP, 0);
MachineLocation CSSrc(XCore::LR);
- Moves.push_back(MachineMove(FrameLabelId, CSDst, CSSrc));
+ Moves.push_back(MachineMove(FrameLabel, CSDst, CSSrc));
}
}
if (saveLR) {
MBB.addLiveIn(XCore::LR);
if (emitFrameMoves) {
- unsigned SaveLRLabelId = MMI->NextLabelID();
- BuildMI(MBB, MBBI, dl, TII.get(XCore::DBG_LABEL)).addImm(SaveLRLabelId);
+ MCSymbol *SaveLRLabel = MMI->getContext().CreateTempSymbol();
+ BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(SaveLRLabel);
MachineLocation CSDst(MachineLocation::VirtualFP, LRSpillOffset);
MachineLocation CSSrc(XCore::LR);
- MMI->getFrameMoves().push_back(MachineMove(SaveLRLabelId,
- CSDst, CSSrc));
+ MMI->getFrameMoves().push_back(MachineMove(SaveLRLabel, CSDst, CSSrc));
}
}
}
// R10 is live-in. It is killed at the spill.
MBB.addLiveIn(XCore::R10);
if (emitFrameMoves) {
- unsigned SaveR10LabelId = MMI->NextLabelID();
- BuildMI(MBB, MBBI, dl, TII.get(XCore::DBG_LABEL)).addImm(SaveR10LabelId);
+ MCSymbol *SaveR10Label = MMI->getContext().CreateTempSymbol();
+ BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(SaveR10Label);
MachineLocation CSDst(MachineLocation::VirtualFP, FPSpillOffset);
MachineLocation CSSrc(XCore::R10);
- MMI->getFrameMoves().push_back(MachineMove(SaveR10LabelId,
- CSDst, CSSrc));
+ MMI->getFrameMoves().push_back(MachineMove(SaveR10Label, CSDst, CSSrc));
}
// Set the FP from the SP.
unsigned FramePtr = XCore::R10;
.addImm(0);
if (emitFrameMoves) {
// Show FP is now valid.
- unsigned FrameLabelId = MMI->NextLabelID();
- BuildMI(MBB, MBBI, dl, TII.get(XCore::DBG_LABEL)).addImm(FrameLabelId);
+ MCSymbol *FrameLabel = MMI->getContext().CreateTempSymbol();
+ BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(FrameLabel);
MachineLocation SPDst(FramePtr);
MachineLocation SPSrc(MachineLocation::VirtualFP);
- MMI->getFrameMoves().push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
+ MMI->getFrameMoves().push_back(MachineMove(FrameLabel, SPDst, SPSrc));
}
}
if (emitFrameMoves) {
// Frame moves for callee saved.
std::vector<MachineMove> &Moves = MMI->getFrameMoves();
- std::vector<std::pair<unsigned, CalleeSavedInfo> >&SpillLabels =
+ std::vector<std::pair<MCSymbol*, CalleeSavedInfo> >&SpillLabels =
XFI->getSpillLabels();
for (unsigned I = 0, E = SpillLabels.size(); I != E; ++I) {
- unsigned SpillLabel = SpillLabels[I].first;
+ MCSymbol *SpillLabel = SpillLabels[I].first;
CalleeSavedInfo &CSI = SpillLabels[I].second;
int Offset = MFI->getObjectOffset(CSI.getFrameIdx());
unsigned Reg = CSI.getReg();
if (!isU6 && !isImmU16(FrameSize)) {
// FIXME could emit multiple instructions.
- std::string msg;
- raw_string_ostream Msg(msg);
- Msg << "emitEpilogue Frame size too big: " << FrameSize;
- llvm_report_error(Msg.str());
+ report_fatal_error("emitEpilogue Frame size too big: " + Twine(FrameSize));
}
if (FrameSize) {
return XCoreGenRegisterInfo::getDwarfRegNumFull(RegNum, 0);
}
-unsigned XCoreRegisterInfo::getFrameRegister(MachineFunction &MF) const {
+unsigned XCoreRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
bool FP = hasFP(MF);
return FP ? XCore::R10 : XCore::SP;
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