//
// runTargetDesc - Output the target register and register file descriptions.
//
void
RegisterInfoEmitter::runTargetDesc(raw_ostream &OS, CodeGenTarget &Target,
CodeGenRegBank &RegBank){
EmitSourceFileHeader("Target Register and Register Classes Information", OS);
OS << "\n#ifdef GET_REGINFO_TARGET_DESC\n";
OS << "#undef GET_REGINFO_TARGET_DESC\n";
OS << "namespace llvm {\n\n";
// Get access to MCRegisterClass data.
OS << "extern const MCRegisterClass " << Target.getName()
<< "MCRegisterClasses[];\n";
// Start out by emitting each of the register classes.
ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses();
// Collect all registers belonging to any allocatable class.
std::set<Record*> AllocatableRegs;
// Collect allocatable registers.
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
ArrayRef<Record*> Order = RC.getOrder();
if (RC.Allocatable)
AllocatableRegs.insert(Order.begin(), Order.end());
}
OS << "namespace { // Register classes...\n";
// Emit the ValueType arrays for each RegisterClass
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
// Give the register class a legal C name if it's anonymous.
std::string Name = RC.getName() + "VTs";
// Emit the register list now.
OS << " // " << Name
<< " Register Class Value Types...\n"
<< " static const EVT " << Name
<< "[] = {\n ";
for (unsigned i = 0, e = RC.VTs.size(); i != e; ++i)
OS << getEnumName(RC.VTs[i]) << ", ";
OS << "MVT::Other\n };\n\n";
}
OS << "} // end anonymous namespace\n\n";
// Now that all of the structs have been emitted, emit the instances.
if (!RegisterClasses.empty()) {
OS << "namespace " << RegisterClasses[0]->Namespace
<< " { // Register class instances\n";
for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i)
OS << " " << RegisterClasses[i]->getName() << "Class\t"
<< RegisterClasses[i]->getName() << "RegClass;\n";
std::map<unsigned, std::set<unsigned> > SuperRegClassMap;
OS << "\n static const TargetRegisterClass* const "
<< "NullRegClasses[] = { NULL };\n\n";
unsigned NumSubRegIndices = RegBank.getSubRegIndices().size();
if (NumSubRegIndices) {
// Compute the super-register classes for each RegisterClass
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
for (DenseMap<Record*,Record*>::const_iterator
i = RC.SubRegClasses.begin(),
e = RC.SubRegClasses.end(); i != e; ++i) {
// Find the register class number of i->second for SuperRegClassMap.
const CodeGenRegisterClass *RC2 = RegBank.getRegClass(i->second);
assert(RC2 && "Invalid register class in SubRegClasses");
SuperRegClassMap[RC2->EnumValue].insert(rc);
}
}
// Emit the super-register classes for each RegisterClass
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
// Give the register class a legal C name if it's anonymous.
std::string Name = RC.getName();
OS << " // " << Name
<< " Super-register Classes...\n"
<< " static const TargetRegisterClass* const "
<< Name << "SuperRegClasses[] = {\n ";
bool Empty = true;
std::map<unsigned, std::set<unsigned> >::iterator I =
SuperRegClassMap.find(rc);
if (I != SuperRegClassMap.end()) {
for (std::set<unsigned>::iterator II = I->second.begin(),
EE = I->second.end(); II != EE; ++II) {
const CodeGenRegisterClass &RC2 = *RegisterClasses[*II];
if (!Empty)
OS << ", ";
OS << "&" << RC2.getQualifiedName() << "RegClass";
Empty = false;
}
}
OS << (!Empty ? ", " : "") << "NULL";
OS << "\n };\n\n";
}
}
// Emit the sub-classes array for each RegisterClass
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
// Give the register class a legal C name if it's anonymous.
std::string Name = RC.getName();
OS << " static const unsigned " << Name << "SubclassMask[] = { ";
printBitVectorAsHex(OS, RC.getSubClasses(), 32);
OS << "};\n\n";
}
// Emit NULL terminated super-class lists.
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
ArrayRef<CodeGenRegisterClass*> Supers = RC.getSuperClasses();
// Skip classes without supers. We can reuse NullRegClasses.
if (Supers.empty())
continue;
OS << " static const TargetRegisterClass* const "
<< RC.getName() << "Superclasses[] = {\n";
for (unsigned i = 0; i != Supers.size(); ++i)
OS << " &" << Supers[i]->getQualifiedName() << "RegClass,\n";
OS << " NULL\n };\n\n";
}
// Emit methods.
for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) {
const CodeGenRegisterClass &RC = *RegisterClasses[i];
OS << RC.getName() << "Class::" << RC.getName()
<< "Class() : TargetRegisterClass(&"
<< Target.getName() << "MCRegisterClasses["
<< RC.getName() + "RegClassID" << "], "
<< RC.getName() + "VTs" << ", "
<< RC.getName() + "SubclassMask" << ", ";
if (RC.getSuperClasses().empty())
OS << "NullRegClasses, ";
else
OS << RC.getName() + "Superclasses, ";
OS << (NumSubRegIndices ? RC.getName() + "Super" : std::string("Null"))
<< "RegClasses"
<< ") {}\n";
if (!RC.AltOrderSelect.empty()) {
OS << "\nstatic inline unsigned " << RC.getName()
<< "AltOrderSelect(const MachineFunction &MF) {"
<< RC.AltOrderSelect << "}\n\nArrayRef<unsigned> "
<< RC.getName() << "Class::"
<< "getRawAllocationOrder(const MachineFunction &MF) const {\n";
for (unsigned oi = 1 , oe = RC.getNumOrders(); oi != oe; ++oi) {
ArrayRef<Record*> Elems = RC.getOrder(oi);
OS << " static const unsigned AltOrder" << oi << "[] = {";
for (unsigned elem = 0; elem != Elems.size(); ++elem)
OS << (elem ? ", " : " ") << getQualifiedName(Elems[elem]);
OS << " };\n";
}
OS << " const MCRegisterClass &MCR = " << Target.getName()
<< "MCRegisterClasses[" << RC.getQualifiedName() + "RegClassID];"
<< " static const ArrayRef<unsigned> Order[] = {\n"
<< " makeArrayRef(MCR.begin(), MCR.getNumRegs()";
for (unsigned oi = 1, oe = RC.getNumOrders(); oi != oe; ++oi)
OS << "),\n makeArrayRef(AltOrder" << oi;
OS << ")\n };\n const unsigned Select = " << RC.getName()
<< "AltOrderSelect(MF);\n assert(Select < " << RC.getNumOrders()
<< ");\n return Order[Select];\n}\n";
}
}
OS << "}\n";
}
OS << "\nnamespace {\n";
OS << " const TargetRegisterClass* const RegisterClasses[] = {\n";
for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i)
OS << " &" << RegisterClasses[i]->getQualifiedName()
<< "RegClass,\n";
OS << " };\n";
OS << "}\n"; // End of anonymous namespace...
// Emit extra information about registers.
const std::string &TargetName = Target.getName();
OS << "\n static const TargetRegisterInfoDesc "
<< TargetName << "RegInfoDesc[] = "
<< "{ // Extra Descriptors\n";
OS << " { 0, 0 },\n";
const std::vector<CodeGenRegister*> &Regs = RegBank.getRegisters();
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
const CodeGenRegister &Reg = *Regs[i];
OS << " { ";
OS << Reg.CostPerUse << ", "
<< int(AllocatableRegs.count(Reg.TheDef)) << " },\n";
}
OS << " };\n"; // End of register descriptors...
// Calculate the mapping of subregister+index pairs to physical registers.
// This will also create further anonymous indexes.
unsigned NamedIndices = RegBank.getNumNamedIndices();
// Emit SubRegIndex names, skipping 0
const std::vector<Record*> &SubRegIndices = RegBank.getSubRegIndices();
OS << "\n static const char *const " << TargetName
<< "SubRegIndexTable[] = { \"";
for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) {
OS << SubRegIndices[i]->getName();
if (i+1 != e)
OS << "\", \"";
}
OS << "\" };\n\n";
// Emit names of the anonymus subreg indexes.
if (SubRegIndices.size() > NamedIndices) {
OS << " enum {";
for (unsigned i = NamedIndices, e = SubRegIndices.size(); i != e; ++i) {
OS << "\n " << SubRegIndices[i]->getName() << " = " << i+1;
if (i+1 != e)
OS << ',';
}
OS << "\n };\n\n";
}
OS << "\n";
std::string ClassName = Target.getName() + "GenRegisterInfo";
// Emit the subregister + index mapping function based on the information
// calculated above.
OS << "unsigned " << ClassName
<< "::getSubReg(unsigned RegNo, unsigned Index) const {\n"
<< " switch (RegNo) {\n"
<< " default:\n return 0;\n";
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
const CodeGenRegister::SubRegMap &SRM = Regs[i]->getSubRegs();
if (SRM.empty())
continue;
OS << " case " << getQualifiedName(Regs[i]->TheDef) << ":\n";
OS << " switch (Index) {\n";
OS << " default: return 0;\n";
for (CodeGenRegister::SubRegMap::const_iterator ii = SRM.begin(),
ie = SRM.end(); ii != ie; ++ii)
OS << " case " << getQualifiedName(ii->first)
<< ": return " << getQualifiedName(ii->second->TheDef) << ";\n";
OS << " };\n" << " break;\n";
}
OS << " };\n";
OS << " return 0;\n";
OS << "}\n\n";
OS << "unsigned " << ClassName
<< "::getSubRegIndex(unsigned RegNo, unsigned SubRegNo) const {\n"
<< " switch (RegNo) {\n"
<< " default:\n return 0;\n";
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
const CodeGenRegister::SubRegMap &SRM = Regs[i]->getSubRegs();
if (SRM.empty())
continue;
OS << " case " << getQualifiedName(Regs[i]->TheDef) << ":\n";
for (CodeGenRegister::SubRegMap::const_iterator ii = SRM.begin(),
ie = SRM.end(); ii != ie; ++ii)
OS << " if (SubRegNo == " << getQualifiedName(ii->second->TheDef)
<< ") return " << getQualifiedName(ii->first) << ";\n";
OS << " return 0;\n";
}
OS << " };\n";
OS << " return 0;\n";
OS << "}\n\n";
// Emit composeSubRegIndices
OS << "unsigned " << ClassName
<< "::composeSubRegIndices(unsigned IdxA, unsigned IdxB) const {\n"
<< " switch (IdxA) {\n"
<< " default:\n return IdxB;\n";
for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) {
bool Open = false;
for (unsigned j = 0; j != e; ++j) {
if (Record *Comp = RegBank.getCompositeSubRegIndex(SubRegIndices[i],
SubRegIndices[j])) {
if (!Open) {
OS << " case " << getQualifiedName(SubRegIndices[i])
<< ": switch(IdxB) {\n default: return IdxB;\n";
Open = true;
}
OS << " case " << getQualifiedName(SubRegIndices[j])
<< ": return " << getQualifiedName(Comp) << ";\n";
}
}
if (Open)
OS << " }\n";
}
OS << " }\n}\n\n";
// Emit getSubClassWithSubReg.
OS << "const TargetRegisterClass *" << ClassName
<< "::getSubClassWithSubReg(const TargetRegisterClass *RC, unsigned Idx)"
" const {\n";
if (SubRegIndices.empty()) {
OS << " assert(Idx == 0 && \"Target has no sub-registers\");\n"
<< " return RC;\n";
} else {
// Use the smallest type that can hold a regclass ID with room for a
// sentinel.
if (RegisterClasses.size() < UINT8_MAX)
OS << " static const uint8_t Table[";
else if (RegisterClasses.size() < UINT16_MAX)
OS << " static const uint16_t Table[";
else
throw "Too many register classes.";
OS << RegisterClasses.size() << "][" << SubRegIndices.size() << "] = {\n";
for (unsigned rci = 0, rce = RegisterClasses.size(); rci != rce; ++rci) {
const CodeGenRegisterClass &RC = *RegisterClasses[rci];
OS << " {\t// " << RC.getName() << "\n";
for (unsigned sri = 0, sre = SubRegIndices.size(); sri != sre; ++sri) {
Record *Idx = SubRegIndices[sri];
if (CodeGenRegisterClass *SRC = RC.getSubClassWithSubReg(Idx))
OS << " " << SRC->EnumValue + 1 << ",\t// " << Idx->getName()
<< " -> " << SRC->getName() << "\n";
else
OS << " 0,\t// " << Idx->getName() << "\n";
}
OS << " },\n";
}
OS << " };\n assert(RC && \"Missing regclass\");\n"
<< " if (!Idx) return RC;\n --Idx;\n"
<< " assert(Idx < " << SubRegIndices.size() << " && \"Bad subreg\");\n"
<< " unsigned TV = Table[RC->getID()][Idx];\n"
<< " return TV ? getRegClass(TV - 1) : 0;\n";
}
OS << "}\n\n";
// Emit the constructor of the class...
OS << "extern const MCRegisterDesc " << TargetName << "RegDesc[];\n";
OS << ClassName << "::" << ClassName
<< "(unsigned RA, unsigned DwarfFlavour, unsigned EHFlavour)\n"
<< " : TargetRegisterInfo(" << TargetName << "RegInfoDesc"
<< ", RegisterClasses, RegisterClasses+" << RegisterClasses.size() <<",\n"
<< " " << TargetName << "SubRegIndexTable) {\n"
<< " InitMCRegisterInfo(" << TargetName << "RegDesc, "
<< Regs.size()+1 << ", RA, " << TargetName << "MCRegisterClasses, "
<< RegisterClasses.size() << ");\n\n";
EmitRegMapping(OS, Regs, true);
OS << "}\n\n";
OS << "} // End llvm namespace \n";
OS << "#endif // GET_REGINFO_TARGET_DESC\n\n";
}
//
// runMCDesc - Print out MC register descriptions.
//
void
RegisterInfoEmitter::runMCDesc(raw_ostream &OS, CodeGenTarget &Target,
CodeGenRegBank &RegBank) {
emitSourceFileHeader("MC Register Information", OS);
OS << "\n#ifdef GET_REGINFO_MC_DESC\n";
OS << "#undef GET_REGINFO_MC_DESC\n";
const std::vector<CodeGenRegister*> &Regs = RegBank.getRegisters();
ArrayRef<CodeGenSubRegIndex*> SubRegIndices = RegBank.getSubRegIndices();
// The lists of sub-registers and super-registers go in the same array. That
// allows us to share suffixes.
typedef std::vector<const CodeGenRegister*> RegVec;
// Differentially encoded lists.
SequenceToOffsetTable<DiffVec> DiffSeqs;
SmallVector<DiffVec, 4> SubRegLists(Regs.size());
SmallVector<DiffVec, 4> SuperRegLists(Regs.size());
SmallVector<DiffVec, 4> RegUnitLists(Regs.size());
SmallVector<unsigned, 4> RegUnitInitScale(Regs.size());
// Keep track of sub-register names as well. These are not differentially
// encoded.
typedef SmallVector<const CodeGenSubRegIndex*, 4> SubRegIdxVec;
SequenceToOffsetTable<SubRegIdxVec, CodeGenSubRegIndex::Less> SubRegIdxSeqs;
SmallVector<SubRegIdxVec, 4> SubRegIdxLists(Regs.size());
SequenceToOffsetTable<std::string> RegStrings;
// Precompute register lists for the SequenceToOffsetTable.
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
const CodeGenRegister *Reg = Regs[i];
RegStrings.add(Reg->getName());
// Compute the ordered sub-register list.
SetVector<const CodeGenRegister*> SR;
Reg->addSubRegsPreOrder(SR, RegBank);
diffEncode(SubRegLists[i], Reg->EnumValue, SR.begin(), SR.end());
DiffSeqs.add(SubRegLists[i]);
// Compute the corresponding sub-register indexes.
SubRegIdxVec &SRIs = SubRegIdxLists[i];
for (unsigned j = 0, je = SR.size(); j != je; ++j)
SRIs.push_back(Reg->getSubRegIndex(SR[j]));
SubRegIdxSeqs.add(SRIs);
// Super-registers are already computed.
const RegVec &SuperRegList = Reg->getSuperRegs();
diffEncode(SuperRegLists[i], Reg->EnumValue,
SuperRegList.begin(), SuperRegList.end());
DiffSeqs.add(SuperRegLists[i]);
// Differentially encode the register unit list, seeded by register number.
// First compute a scale factor that allows more diff-lists to be reused:
//
// D0 -> (S0, S1)
// D1 -> (S2, S3)
//
// A scale factor of 2 allows D0 and D1 to share a diff-list. The initial
// value for the differential decoder is the register number multiplied by
// the scale.
//
// Check the neighboring registers for arithmetic progressions.
unsigned ScaleA = ~0u, ScaleB = ~0u;
ArrayRef<unsigned> RUs = Reg->getNativeRegUnits();
if (i > 0 && Regs[i-1]->getNativeRegUnits().size() == RUs.size())
ScaleB = RUs.front() - Regs[i-1]->getNativeRegUnits().front();
if (i+1 != Regs.size() &&
Regs[i+1]->getNativeRegUnits().size() == RUs.size())
ScaleA = Regs[i+1]->getNativeRegUnits().front() - RUs.front();
unsigned Scale = std::min(ScaleB, ScaleA);
// Default the scale to 0 if it can't be encoded in 4 bits.
if (Scale >= 16)
Scale = 0;
RegUnitInitScale[i] = Scale;
DiffSeqs.add(diffEncode(RegUnitLists[i], Scale * Reg->EnumValue, RUs));
}
// Compute the final layout of the sequence table.
DiffSeqs.layout();
SubRegIdxSeqs.layout();
OS << "namespace llvm {\n\n";
const std::string &TargetName = Target.getName();
// Emit the shared table of differential lists.
OS << "extern const MCPhysReg " << TargetName << "RegDiffLists[] = {\n";
DiffSeqs.emit(OS, printDiff16);
OS << "};\n\n";
// Emit the table of sub-register indexes.
OS << "extern const uint16_t " << TargetName << "SubRegIdxLists[] = {\n";
SubRegIdxSeqs.emit(OS, printSubRegIndex);
OS << "};\n\n";
// Emit the table of sub-register index sizes.
OS << "extern const MCRegisterInfo::SubRegCoveredBits "
<< TargetName << "SubRegIdxRanges[] = {\n";
OS << " { " << (uint16_t)-1 << ", " << (uint16_t)-1 << " },\n";
for (ArrayRef<CodeGenSubRegIndex*>::const_iterator
SRI = SubRegIndices.begin(), SRE = SubRegIndices.end();
SRI != SRE; ++SRI) {
OS << " { " << (*SRI)->Offset << ", "
<< (*SRI)->Size
<< " },\t// " << (*SRI)->getName() << "\n";
}
OS << "};\n\n";
// Emit the string table.
RegStrings.layout();
OS << "extern const char " << TargetName << "RegStrings[] = {\n";
RegStrings.emit(OS, printChar);
OS << "};\n\n";
OS << "extern const MCRegisterDesc " << TargetName
<< "RegDesc[] = { // Descriptors\n";
OS << " { " << RegStrings.get("") << ", 0, 0, 0, 0 },\n";
// Emit the register descriptors now.
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
const CodeGenRegister *Reg = Regs[i];
OS << " { " << RegStrings.get(Reg->getName()) << ", "
<< DiffSeqs.get(SubRegLists[i]) << ", "
<< DiffSeqs.get(SuperRegLists[i]) << ", "
<< SubRegIdxSeqs.get(SubRegIdxLists[i]) << ", "
<< (DiffSeqs.get(RegUnitLists[i])*16 + RegUnitInitScale[i]) << " },\n";
}
OS << "};\n\n"; // End of register descriptors...
// Emit the table of register unit roots. Each regunit has one or two root
// registers.
OS << "extern const MCPhysReg " << TargetName << "RegUnitRoots[][2] = {\n";
for (unsigned i = 0, e = RegBank.getNumNativeRegUnits(); i != e; ++i) {
ArrayRef<const CodeGenRegister*> Roots = RegBank.getRegUnit(i).getRoots();
assert(!Roots.empty() && "All regunits must have a root register.");
assert(Roots.size() <= 2 && "More than two roots not supported yet.");
OS << " { " << getQualifiedName(Roots.front()->TheDef);
for (unsigned r = 1; r != Roots.size(); ++r)
OS << ", " << getQualifiedName(Roots[r]->TheDef);
OS << " },\n";
}
OS << "};\n\n";
ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses();
// Loop over all of the register classes... emitting each one.
OS << "namespace { // Register classes...\n";
// Emit the register enum value arrays for each RegisterClass
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
ArrayRef<Record*> Order = RC.getOrder();
// Give the register class a legal C name if it's anonymous.
std::string Name = RC.getName();
// Emit the register list now.
OS << " // " << Name << " Register Class...\n"
<< " const MCPhysReg " << Name
<< "[] = {\n ";
for (unsigned i = 0, e = Order.size(); i != e; ++i) {
Record *Reg = Order[i];
OS << getQualifiedName(Reg) << ", ";
}
OS << "\n };\n\n";
OS << " // " << Name << " Bit set.\n"
<< " const uint8_t " << Name
<< "Bits[] = {\n ";
BitVectorEmitter BVE;
for (unsigned i = 0, e = Order.size(); i != e; ++i) {
Record *Reg = Order[i];
BVE.add(Target.getRegBank().getReg(Reg)->EnumValue);
}
BVE.print(OS);
OS << "\n };\n\n";
}
OS << "}\n\n";
OS << "extern const MCRegisterClass " << TargetName
<< "MCRegisterClasses[] = {\n";
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
// Asserts to make sure values will fit in table assuming types from
// MCRegisterInfo.h
assert((RC.SpillSize/8) <= 0xffff && "SpillSize too large.");
assert((RC.SpillAlignment/8) <= 0xffff && "SpillAlignment too large.");
assert(RC.CopyCost >= -128 && RC.CopyCost <= 127 && "Copy cost too large.");
OS << " { " << '\"' << RC.getName() << "\", "
<< RC.getName() << ", " << RC.getName() << "Bits, "
<< RC.getOrder().size() << ", sizeof(" << RC.getName() << "Bits), "
<< RC.getQualifiedName() + "RegClassID" << ", "
<< RC.SpillSize/8 << ", "
<< RC.SpillAlignment/8 << ", "
<< RC.CopyCost << ", "
<< RC.Allocatable << " },\n";
}
OS << "};\n\n";
EmitRegMappingTables(OS, Regs, false);
// Emit Reg encoding table
OS << "extern const uint16_t " << TargetName;
OS << "RegEncodingTable[] = {\n";
// Add entry for NoRegister
OS << " 0,\n";
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
Record *Reg = Regs[i]->TheDef;
BitsInit *BI = Reg->getValueAsBitsInit("HWEncoding");
uint64_t Value = 0;
for (unsigned b = 0, be = BI->getNumBits(); b != be; ++b) {
if (BitInit *B = dyn_cast<BitInit>(BI->getBit(b)))
Value |= (uint64_t)B->getValue() << b;
}
OS << " " << Value << ",\n";
}
OS << "};\n"; // End of HW encoding table
// MCRegisterInfo initialization routine.
OS << "static inline void Init" << TargetName
<< "MCRegisterInfo(MCRegisterInfo *RI, unsigned RA, "
<< "unsigned DwarfFlavour = 0, unsigned EHFlavour = 0, unsigned PC = 0) {\n"
<< " RI->InitMCRegisterInfo(" << TargetName << "RegDesc, "
<< Regs.size()+1 << ", RA, PC, " << TargetName << "MCRegisterClasses, "
<< RegisterClasses.size() << ", "
<< TargetName << "RegUnitRoots, "
<< RegBank.getNumNativeRegUnits() << ", "
<< TargetName << "RegDiffLists, "
<< TargetName << "RegStrings, "
<< TargetName << "SubRegIdxLists, "
<< (SubRegIndices.size() + 1) << ",\n"
<< TargetName << "SubRegIdxRanges, "
<< " " << TargetName << "RegEncodingTable);\n\n";
EmitRegMapping(OS, Regs, false);
OS << "}\n\n";
OS << "} // End llvm namespace \n";
OS << "#endif // GET_REGINFO_MC_DESC\n\n";
}
/// emitModuleFlags - Perform code emission for module flags.
void TargetLoweringObjectFileMachO::
emitModuleFlags(MCStreamer &Streamer,
ArrayRef<Module::ModuleFlagEntry> ModuleFlags,
Mangler *Mang, const TargetMachine &TM) const {
unsigned VersionVal = 0;
unsigned ImageInfoFlags = 0;
MDNode *LinkerOptions = 0;
StringRef SectionVal;
for (ArrayRef<Module::ModuleFlagEntry>::iterator
i = ModuleFlags.begin(), e = ModuleFlags.end(); i != e; ++i) {
const Module::ModuleFlagEntry &MFE = *i;
// Ignore flags with 'Require' behavior.
if (MFE.Behavior == Module::Require)
continue;
StringRef Key = MFE.Key->getString();
Value *Val = MFE.Val;
if (Key == "Objective-C Image Info Version") {
VersionVal = cast<ConstantInt>(Val)->getZExtValue();
} else if (Key == "Objective-C Garbage Collection" ||
Key == "Objective-C GC Only" ||
Key == "Objective-C Is Simulated") {
ImageInfoFlags |= cast<ConstantInt>(Val)->getZExtValue();
} else if (Key == "Objective-C Image Info Section") {
SectionVal = cast<MDString>(Val)->getString();
} else if (Key == "Linker Options") {
LinkerOptions = cast<MDNode>(Val);
}
}
// Emit the linker options if present.
if (LinkerOptions) {
for (unsigned i = 0, e = LinkerOptions->getNumOperands(); i != e; ++i) {
MDNode *MDOptions = cast<MDNode>(LinkerOptions->getOperand(i));
SmallVector<std::string, 4> StrOptions;
// Convert to strings.
for (unsigned ii = 0, ie = MDOptions->getNumOperands(); ii != ie; ++ii) {
MDString *MDOption = cast<MDString>(MDOptions->getOperand(ii));
StrOptions.push_back(MDOption->getString());
}
Streamer.EmitLinkerOptions(StrOptions);
}
}
// The section is mandatory. If we don't have it, then we don't have GC info.
if (SectionVal.empty()) return;
StringRef Segment, Section;
unsigned TAA = 0, StubSize = 0;
bool TAAParsed;
std::string ErrorCode =
MCSectionMachO::ParseSectionSpecifier(SectionVal, Segment, Section,
TAA, TAAParsed, StubSize);
if (!ErrorCode.empty())
// If invalid, report the error with report_fatal_error.
report_fatal_error("Invalid section specifier '" + Section + "': " +
ErrorCode + ".");
// Get the section.
const MCSectionMachO *S =
getContext().getMachOSection(Segment, Section, TAA, StubSize,
SectionKind::getDataNoRel());
Streamer.SwitchSection(S);
Streamer.EmitLabel(getContext().
GetOrCreateSymbol(StringRef("L_OBJC_IMAGE_INFO")));
Streamer.EmitIntValue(VersionVal, 4);
Streamer.EmitIntValue(ImageInfoFlags, 4);
Streamer.AddBlankLine();
}
static void writeSymbolTable(
raw_fd_ostream &Out, ArrayRef<NewArchiveIterator> Members,
ArrayRef<MemoryBuffer *> Buffers,
std::vector<std::pair<unsigned, unsigned> > &MemberOffsetRefs) {
unsigned StartOffset = 0;
unsigned MemberNum = 0;
std::string NameBuf;
raw_string_ostream NameOS(NameBuf);
unsigned NumSyms = 0;
std::vector<object::SymbolicFile *> DeleteIt;
LLVMContext &Context = getGlobalContext();
for (ArrayRef<NewArchiveIterator>::iterator I = Members.begin(),
E = Members.end();
I != E; ++I, ++MemberNum) {
MemoryBuffer *MemberBuffer = Buffers[MemberNum];
ErrorOr<object::SymbolicFile *> ObjOrErr =
object::SymbolicFile::createSymbolicFile(
MemberBuffer, false, sys::fs::file_magic::unknown, &Context);
if (!ObjOrErr)
continue; // FIXME: check only for "not an object file" errors.
object::SymbolicFile *Obj = ObjOrErr.get();
DeleteIt.push_back(Obj);
if (!StartOffset) {
printMemberHeader(Out, "", sys::TimeValue::now(), 0, 0, 0, 0);
StartOffset = Out.tell();
print32BE(Out, 0);
}
for (object::basic_symbol_iterator I = Obj->symbol_begin(),
E = Obj->symbol_end();
I != E; ++I) {
uint32_t Symflags = I->getFlags();
if (Symflags & object::SymbolRef::SF_FormatSpecific)
continue;
if (!(Symflags & object::SymbolRef::SF_Global))
continue;
if (Symflags & object::SymbolRef::SF_Undefined)
continue;
failIfError(I->printName(NameOS));
NameOS << '\0';
++NumSyms;
MemberOffsetRefs.push_back(std::make_pair(Out.tell(), MemberNum));
print32BE(Out, 0);
}
}
Out << NameOS.str();
for (std::vector<object::SymbolicFile *>::iterator I = DeleteIt.begin(),
E = DeleteIt.end();
I != E; ++I) {
object::SymbolicFile *O = *I;
delete O;
}
if (StartOffset == 0)
return;
if (Out.tell() % 2)
Out << '\0';
unsigned Pos = Out.tell();
Out.seek(StartOffset - 12);
printWithSpacePadding(Out, Pos - StartOffset, 10);
Out.seek(StartOffset);
print32BE(Out, NumSyms);
Out.seek(Pos);
}
//
// runTargetDesc - Output the target register and register file descriptions.
//
void
RegisterInfoEmitter::runTargetDesc(raw_ostream &OS, CodeGenTarget &Target,
CodeGenRegBank &RegBank){
emitSourceFileHeader("Target Register and Register Classes Information", OS);
OS << "\n#ifdef GET_REGINFO_TARGET_DESC\n";
OS << "#undef GET_REGINFO_TARGET_DESC\n";
OS << "namespace llvm {\n\n";
// Get access to MCRegisterClass data.
OS << "extern const MCRegisterClass " << Target.getName()
<< "MCRegisterClasses[];\n";
// Start out by emitting each of the register classes.
ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses();
ArrayRef<CodeGenSubRegIndex*> SubRegIndices = RegBank.getSubRegIndices();
// Collect all registers belonging to any allocatable class.
std::set<Record*> AllocatableRegs;
// Collect allocatable registers.
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
ArrayRef<Record*> Order = RC.getOrder();
if (RC.Allocatable)
AllocatableRegs.insert(Order.begin(), Order.end());
}
// Build a shared array of value types.
SequenceToOffsetTable<SmallVector<MVT::SimpleValueType, 4> > VTSeqs;
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc)
VTSeqs.add(RegisterClasses[rc]->VTs);
VTSeqs.layout();
OS << "\nstatic const MVT::SimpleValueType VTLists[] = {\n";
VTSeqs.emit(OS, printSimpleValueType, "MVT::Other");
OS << "};\n";
// Emit SubRegIndex names, skipping 0.
OS << "\nstatic const char *const SubRegIndexNameTable[] = { \"";
for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) {
OS << SubRegIndices[i]->getName();
if (i + 1 != e)
OS << "\", \"";
}
OS << "\" };\n\n";
// Emit SubRegIndex lane masks, including 0.
OS << "\nstatic const unsigned SubRegIndexLaneMaskTable[] = {\n ~0u,\n";
for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) {
OS << format(" 0x%08x, // ", SubRegIndices[i]->LaneMask)
<< SubRegIndices[i]->getName() << '\n';
}
OS << " };\n\n";
OS << "\n";
// Now that all of the structs have been emitted, emit the instances.
if (!RegisterClasses.empty()) {
OS << "\nstatic const TargetRegisterClass *const "
<< "NullRegClasses[] = { NULL };\n\n";
// Emit register class bit mask tables. The first bit mask emitted for a
// register class, RC, is the set of sub-classes, including RC itself.
//
// If RC has super-registers, also create a list of subreg indices and bit
// masks, (Idx, Mask). The bit mask has a bit for every superreg regclass,
// SuperRC, that satisfies:
//
// For all SuperReg in SuperRC: SuperReg:Idx in RC
//
// The 0-terminated list of subreg indices starts at:
//
// RC->getSuperRegIndices() = SuperRegIdxSeqs + ...
//
// The corresponding bitmasks follow the sub-class mask in memory. Each
// mask has RCMaskWords uint32_t entries.
//
// Every bit mask present in the list has at least one bit set.
// Compress the sub-reg index lists.
typedef std::vector<const CodeGenSubRegIndex*> IdxList;
SmallVector<IdxList, 8> SuperRegIdxLists(RegisterClasses.size());
SequenceToOffsetTable<IdxList, CodeGenSubRegIndex::Less> SuperRegIdxSeqs;
BitVector MaskBV(RegisterClasses.size());
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
OS << "static const uint32_t " << RC.getName() << "SubClassMask[] = {\n ";
printBitVectorAsHex(OS, RC.getSubClasses(), 32);
// Emit super-reg class masks for any relevant SubRegIndices that can
// project into RC.
IdxList &SRIList = SuperRegIdxLists[rc];
for (unsigned sri = 0, sre = SubRegIndices.size(); sri != sre; ++sri) {
CodeGenSubRegIndex *Idx = SubRegIndices[sri];
MaskBV.reset();
RC.getSuperRegClasses(Idx, MaskBV);
if (MaskBV.none())
continue;
SRIList.push_back(Idx);
OS << "\n ";
printBitVectorAsHex(OS, MaskBV, 32);
OS << "// " << Idx->getName();
}
SuperRegIdxSeqs.add(SRIList);
OS << "\n};\n\n";
}
OS << "static const uint16_t SuperRegIdxSeqs[] = {\n";
SuperRegIdxSeqs.layout();
SuperRegIdxSeqs.emit(OS, printSubRegIndex);
OS << "};\n\n";
// Emit NULL terminated super-class lists.
for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
const CodeGenRegisterClass &RC = *RegisterClasses[rc];
ArrayRef<CodeGenRegisterClass*> Supers = RC.getSuperClasses();
// Skip classes without supers. We can reuse NullRegClasses.
if (Supers.empty())
continue;
OS << "static const TargetRegisterClass *const "
<< RC.getName() << "Superclasses[] = {\n";
for (unsigned i = 0; i != Supers.size(); ++i)
OS << " &" << Supers[i]->getQualifiedName() << "RegClass,\n";
OS << " NULL\n};\n\n";
}
// Emit methods.
for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) {
const CodeGenRegisterClass &RC = *RegisterClasses[i];
if (!RC.AltOrderSelect.empty()) {
OS << "\nstatic inline unsigned " << RC.getName()
<< "AltOrderSelect(const MachineFunction &MF) {"
<< RC.AltOrderSelect << "}\n\n"
<< "static ArrayRef<MCPhysReg> " << RC.getName()
<< "GetRawAllocationOrder(const MachineFunction &MF) {\n";
for (unsigned oi = 1 , oe = RC.getNumOrders(); oi != oe; ++oi) {
ArrayRef<Record*> Elems = RC.getOrder(oi);
if (!Elems.empty()) {
OS << " static const MCPhysReg AltOrder" << oi << "[] = {";
for (unsigned elem = 0; elem != Elems.size(); ++elem)
OS << (elem ? ", " : " ") << getQualifiedName(Elems[elem]);
OS << " };\n";
}
}
OS << " const MCRegisterClass &MCR = " << Target.getName()
<< "MCRegisterClasses[" << RC.getQualifiedName() + "RegClassID];\n"
<< " const ArrayRef<MCPhysReg> Order[] = {\n"
<< " makeArrayRef(MCR.begin(), MCR.getNumRegs()";
for (unsigned oi = 1, oe = RC.getNumOrders(); oi != oe; ++oi)
if (RC.getOrder(oi).empty())
OS << "),\n ArrayRef<MCPhysReg>(";
else
OS << "),\n makeArrayRef(AltOrder" << oi;
OS << ")\n };\n const unsigned Select = " << RC.getName()
<< "AltOrderSelect(MF);\n assert(Select < " << RC.getNumOrders()
<< ");\n return Order[Select];\n}\n";
}
}
// Now emit the actual value-initialized register class instances.
OS << "namespace " << RegisterClasses[0]->Namespace
<< " { // Register class instances\n";
for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) {
const CodeGenRegisterClass &RC = *RegisterClasses[i];
OS << " extern const TargetRegisterClass "
<< RegisterClasses[i]->getName() << "RegClass = {\n "
<< '&' << Target.getName() << "MCRegisterClasses[" << RC.getName()
<< "RegClassID],\n "
<< "VTLists + " << VTSeqs.get(RC.VTs) << ",\n "
<< RC.getName() << "SubClassMask,\n SuperRegIdxSeqs + "
<< SuperRegIdxSeqs.get(SuperRegIdxLists[i]) << ",\n ";
if (RC.getSuperClasses().empty())
OS << "NullRegClasses,\n ";
else
OS << RC.getName() << "Superclasses,\n ";
if (RC.AltOrderSelect.empty())
OS << "0\n";
else
OS << RC.getName() << "GetRawAllocationOrder\n";
OS << " };\n\n";
}
OS << "}\n";
}
OS << "\nnamespace {\n";
OS << " const TargetRegisterClass* const RegisterClasses[] = {\n";
for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i)
OS << " &" << RegisterClasses[i]->getQualifiedName()
<< "RegClass,\n";
OS << " };\n";
OS << "}\n"; // End of anonymous namespace...
// Emit extra information about registers.
const std::string &TargetName = Target.getName();
OS << "\nstatic const TargetRegisterInfoDesc "
<< TargetName << "RegInfoDesc[] = { // Extra Descriptors\n";
OS << " { 0, 0 },\n";
const std::vector<CodeGenRegister*> &Regs = RegBank.getRegisters();
for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
const CodeGenRegister &Reg = *Regs[i];
OS << " { ";
OS << Reg.CostPerUse << ", "
<< int(AllocatableRegs.count(Reg.TheDef)) << " },\n";
}
OS << "};\n"; // End of register descriptors...
std::string ClassName = Target.getName() + "GenRegisterInfo";
if (!SubRegIndices.empty())
emitComposeSubRegIndices(OS, RegBank, ClassName);
// Emit getSubClassWithSubReg.
if (!SubRegIndices.empty()) {
OS << "const TargetRegisterClass *" << ClassName
<< "::getSubClassWithSubReg(const TargetRegisterClass *RC, unsigned Idx)"
<< " const {\n";
// Use the smallest type that can hold a regclass ID with room for a
// sentinel.
if (RegisterClasses.size() < UINT8_MAX)
OS << " static const uint8_t Table[";
else if (RegisterClasses.size() < UINT16_MAX)
OS << " static const uint16_t Table[";
else
PrintFatalError("Too many register classes.");
OS << RegisterClasses.size() << "][" << SubRegIndices.size() << "] = {\n";
for (unsigned rci = 0, rce = RegisterClasses.size(); rci != rce; ++rci) {
const CodeGenRegisterClass &RC = *RegisterClasses[rci];
OS << " {\t// " << RC.getName() << "\n";
for (unsigned sri = 0, sre = SubRegIndices.size(); sri != sre; ++sri) {
CodeGenSubRegIndex *Idx = SubRegIndices[sri];
if (CodeGenRegisterClass *SRC = RC.getSubClassWithSubReg(Idx))
OS << " " << SRC->EnumValue + 1 << ",\t// " << Idx->getName()
<< " -> " << SRC->getName() << "\n";
else
OS << " 0,\t// " << Idx->getName() << "\n";
}
OS << " },\n";
}
OS << " };\n assert(RC && \"Missing regclass\");\n"
<< " if (!Idx) return RC;\n --Idx;\n"
<< " assert(Idx < " << SubRegIndices.size() << " && \"Bad subreg\");\n"
<< " unsigned TV = Table[RC->getID()][Idx];\n"
<< " return TV ? getRegClass(TV - 1) : 0;\n}\n\n";
}
EmitRegUnitPressure(OS, RegBank, ClassName);
// Emit the constructor of the class...
OS << "extern const MCRegisterDesc " << TargetName << "RegDesc[];\n";
OS << "extern const MCPhysReg " << TargetName << "RegDiffLists[];\n";
OS << "extern const char " << TargetName << "RegStrings[];\n";
OS << "extern const MCPhysReg " << TargetName << "RegUnitRoots[][2];\n";
OS << "extern const uint16_t " << TargetName << "SubRegIdxLists[];\n";
OS << "extern const MCRegisterInfo::SubRegCoveredBits "
<< TargetName << "SubRegIdxRanges[];\n";
OS << "extern const uint16_t " << TargetName << "RegEncodingTable[];\n";
EmitRegMappingTables(OS, Regs, true);
OS << ClassName << "::\n" << ClassName
<< "(unsigned RA, unsigned DwarfFlavour, unsigned EHFlavour, unsigned PC)\n"
<< " : TargetRegisterInfo(" << TargetName << "RegInfoDesc"
<< ", RegisterClasses, RegisterClasses+" << RegisterClasses.size() <<",\n"
<< " SubRegIndexNameTable, SubRegIndexLaneMaskTable, 0x";
OS.write_hex(RegBank.CoveringLanes);
OS << ") {\n"
<< " InitMCRegisterInfo(" << TargetName << "RegDesc, "
<< Regs.size()+1 << ", RA, PC,\n " << TargetName
<< "MCRegisterClasses, " << RegisterClasses.size() << ",\n"
<< " " << TargetName << "RegUnitRoots,\n"
<< " " << RegBank.getNumNativeRegUnits() << ",\n"
<< " " << TargetName << "RegDiffLists,\n"
<< " " << TargetName << "RegStrings,\n"
<< " " << TargetName << "SubRegIdxLists,\n"
<< " " << SubRegIndices.size() + 1 << ",\n"
<< " " << TargetName << "SubRegIdxRanges,\n"
<< " " << TargetName << "RegEncodingTable);\n\n";
EmitRegMapping(OS, Regs, true);
OS << "}\n\n";
// Emit CalleeSavedRegs information.
std::vector<Record*> CSRSets =
Records.getAllDerivedDefinitions("CalleeSavedRegs");
for (unsigned i = 0, e = CSRSets.size(); i != e; ++i) {
Record *CSRSet = CSRSets[i];
const SetTheory::RecVec *Regs = RegBank.getSets().expand(CSRSet);
assert(Regs && "Cannot expand CalleeSavedRegs instance");
// Emit the *_SaveList list of callee-saved registers.
OS << "static const MCPhysReg " << CSRSet->getName()
<< "_SaveList[] = { ";
for (unsigned r = 0, re = Regs->size(); r != re; ++r)
OS << getQualifiedName((*Regs)[r]) << ", ";
OS << "0 };\n";
// Emit the *_RegMask bit mask of call-preserved registers.
BitVector Covered = RegBank.computeCoveredRegisters(*Regs);
// Check for an optional OtherPreserved set.
// Add those registers to RegMask, but not to SaveList.
if (DagInit *OPDag =
dyn_cast<DagInit>(CSRSet->getValueInit("OtherPreserved"))) {
SetTheory::RecSet OPSet;
RegBank.getSets().evaluate(OPDag, OPSet, CSRSet->getLoc());
Covered |= RegBank.computeCoveredRegisters(
ArrayRef<Record*>(OPSet.begin(), OPSet.end()));
}
OS << "static const uint32_t " << CSRSet->getName()
<< "_RegMask[] = { ";
printBitVectorAsHex(OS, Covered, 32);
OS << "};\n";
}
OS << "\n\n";
OS << "} // End llvm namespace \n";
OS << "#endif // GET_REGINFO_TARGET_DESC\n\n";
}
void OMPInReductionClause::setLHSExprs(ArrayRef<Expr *> LHSExprs) {
assert(
LHSExprs.size() == varlist_size() &&
"Number of LHS expressions is not the same as the preallocated buffer");
std::copy(LHSExprs.begin(), LHSExprs.end(), getPrivates().end());
}
void OMPUseDevicePtrClause::setInits(ArrayRef<Expr *> VL) {
assert(VL.size() == varlist_size() &&
"Number of inits is not the same as the preallocated buffer");
std::copy(VL.begin(), VL.end(), getPrivateCopies().end());
}
/// \brief Helper to call buildExtractionBlockSet with an ArrayRef.
static SetVector<BasicBlock *>
buildExtractionBlockSet(ArrayRef<BasicBlock *> BBs) {
return buildExtractionBlockSet(BBs.begin(), BBs.end());
}
/// UpdateAnalysisInformation - Update DominatorTree, LoopInfo, and LCCSA
/// analysis information.
static void UpdateAnalysisInformation(BasicBlock *OldBB, BasicBlock *NewBB,
ArrayRef<BasicBlock *> Preds,
DominatorTree *DT, LoopInfo *LI,
bool PreserveLCSSA, bool &HasLoopExit) {
// Update dominator tree if available.
if (DT)
DT->splitBlock(NewBB);
// The rest of the logic is only relevant for updating the loop structures.
if (!LI)
return;
Loop *L = LI->getLoopFor(OldBB);
// If we need to preserve loop analyses, collect some information about how
// this split will affect loops.
bool IsLoopEntry = !!L;
bool SplitMakesNewLoopHeader = false;
for (ArrayRef<BasicBlock *>::iterator i = Preds.begin(), e = Preds.end();
i != e; ++i) {
BasicBlock *Pred = *i;
// If we need to preserve LCSSA, determine if any of the preds is a loop
// exit.
if (PreserveLCSSA)
if (Loop *PL = LI->getLoopFor(Pred))
if (!PL->contains(OldBB))
HasLoopExit = true;
// If we need to preserve LoopInfo, note whether any of the preds crosses
// an interesting loop boundary.
if (!L)
continue;
if (L->contains(Pred))
IsLoopEntry = false;
else
SplitMakesNewLoopHeader = true;
}
// Unless we have a loop for OldBB, nothing else to do here.
if (!L)
return;
if (IsLoopEntry) {
// Add the new block to the nearest enclosing loop (and not an adjacent
// loop). To find this, examine each of the predecessors and determine which
// loops enclose them, and select the most-nested loop which contains the
// loop containing the block being split.
Loop *InnermostPredLoop = nullptr;
for (ArrayRef<BasicBlock*>::iterator
i = Preds.begin(), e = Preds.end(); i != e; ++i) {
BasicBlock *Pred = *i;
if (Loop *PredLoop = LI->getLoopFor(Pred)) {
// Seek a loop which actually contains the block being split (to avoid
// adjacent loops).
while (PredLoop && !PredLoop->contains(OldBB))
PredLoop = PredLoop->getParentLoop();
// Select the most-nested of these loops which contains the block.
if (PredLoop && PredLoop->contains(OldBB) &&
(!InnermostPredLoop ||
InnermostPredLoop->getLoopDepth() < PredLoop->getLoopDepth()))
InnermostPredLoop = PredLoop;
}
}
if (InnermostPredLoop)
InnermostPredLoop->addBasicBlockToLoop(NewBB, *LI);
} else {
L->addBasicBlockToLoop(NewBB, *LI);
if (SplitMakesNewLoopHeader)
L->moveToHeader(NewBB);
}
}
/// \brief Print out the file/line/column information and include trace.
///
/// This method handlen the emission of the diagnostic location information.
/// This includes extracting as much location information as is present for
/// the diagnostic and printing it, as well as any include stack or source
/// ranges necessary.
void TextDiagnostic::emitDiagnosticLoc(SourceLocation Loc, PresumedLoc PLoc,
DiagnosticsEngine::Level Level,
ArrayRef<CharSourceRange> Ranges,
const SourceManager &SM) {
if (PLoc.isInvalid()) {
// At least print the file name if available:
FileID FID = SM.getFileID(Loc);
if (!FID.isInvalid()) {
const FileEntry* FE = SM.getFileEntryForID(FID);
if (FE && FE->getName()) {
OS << FE->getName();
if (FE->getDevice() == 0 && FE->getInode() == 0
&& FE->getFileMode() == 0) {
// in PCH is a guess, but a good one:
OS << " (in PCH)";
}
OS << ": ";
}
}
return;
}
unsigned LineNo = PLoc.getLine();
if (!DiagOpts->ShowLocation)
return;
if (DiagOpts->ShowColors)
OS.changeColor(savedColor, true);
OS << PLoc.getFilename();
switch (DiagOpts->getFormat()) {
case DiagnosticOptions::Clang: OS << ':' << LineNo; break;
case DiagnosticOptions::Msvc: OS << '(' << LineNo; break;
case DiagnosticOptions::Vi: OS << " +" << LineNo; break;
}
if (DiagOpts->ShowColumn)
// Compute the column number.
if (unsigned ColNo = PLoc.getColumn()) {
if (DiagOpts->getFormat() == DiagnosticOptions::Msvc) {
OS << ',';
ColNo--;
} else
OS << ':';
OS << ColNo;
}
switch (DiagOpts->getFormat()) {
case DiagnosticOptions::Clang:
case DiagnosticOptions::Vi: OS << ':'; break;
case DiagnosticOptions::Msvc: OS << ") : "; break;
}
if (DiagOpts->ShowSourceRanges && !Ranges.empty()) {
FileID CaretFileID =
SM.getFileID(SM.getExpansionLoc(Loc));
bool PrintedRange = false;
for (ArrayRef<CharSourceRange>::const_iterator RI = Ranges.begin(),
RE = Ranges.end();
RI != RE; ++RI) {
// Ignore invalid ranges.
if (!RI->isValid()) continue;
SourceLocation B = SM.getExpansionLoc(RI->getBegin());
SourceLocation E = SM.getExpansionLoc(RI->getEnd());
// If the End location and the start location are the same and are a
// macro location, then the range was something that came from a
// macro expansion or _Pragma. If this is an object-like macro, the
// best we can do is to highlight the range. If this is a
// function-like macro, we'd also like to highlight the arguments.
if (B == E && RI->getEnd().isMacroID())
E = SM.getExpansionRange(RI->getEnd()).second;
std::pair<FileID, unsigned> BInfo = SM.getDecomposedLoc(B);
std::pair<FileID, unsigned> EInfo = SM.getDecomposedLoc(E);
// If the start or end of the range is in another file, just discard
// it.
if (BInfo.first != CaretFileID || EInfo.first != CaretFileID)
continue;
// Add in the length of the token, so that we cover multi-char
// tokens.
unsigned TokSize = 0;
if (RI->isTokenRange())
TokSize = Lexer::MeasureTokenLength(E, SM, LangOpts);
OS << '{' << SM.getLineNumber(BInfo.first, BInfo.second) << ':'
<< SM.getColumnNumber(BInfo.first, BInfo.second) << '-'
<< SM.getLineNumber(EInfo.first, EInfo.second) << ':'
<< (SM.getColumnNumber(EInfo.first, EInfo.second)+TokSize)
<< '}';
PrintedRange = true;
}
if (PrintedRange)
OS << ':';
}
OS << ' ';
}
static std::string buildFixItInsertionLine(unsigned LineNo,
const SourceColumnMap &map,
ArrayRef<FixItHint> Hints,
const SourceManager &SM,
const DiagnosticOptions *DiagOpts) {
std::string FixItInsertionLine;
if (Hints.empty() || !DiagOpts->ShowFixits)
return FixItInsertionLine;
unsigned PrevHintEndCol = 0;
for (ArrayRef<FixItHint>::iterator I = Hints.begin(), E = Hints.end();
I != E; ++I) {
if (!I->CodeToInsert.empty()) {
// We have an insertion hint. Determine whether the inserted
// code contains no newlines and is on the same line as the caret.
std::pair<FileID, unsigned> HintLocInfo
= SM.getDecomposedExpansionLoc(I->RemoveRange.getBegin());
if (LineNo == SM.getLineNumber(HintLocInfo.first, HintLocInfo.second) &&
StringRef(I->CodeToInsert).find_first_of("\n\r") == StringRef::npos) {
// Insert the new code into the line just below the code
// that the user wrote.
// Note: When modifying this function, be very careful about what is a
// "column" (printed width, platform-dependent) and what is a
// "byte offset" (SourceManager "column").
unsigned HintByteOffset
= SM.getColumnNumber(HintLocInfo.first, HintLocInfo.second) - 1;
// The hint must start inside the source or right at the end
assert(HintByteOffset < static_cast<unsigned>(map.bytes())+1);
unsigned HintCol = map.byteToContainingColumn(HintByteOffset);
// If we inserted a long previous hint, push this one forwards, and add
// an extra space to show that this is not part of the previous
// completion. This is sort of the best we can do when two hints appear
// to overlap.
//
// Note that if this hint is located immediately after the previous
// hint, no space will be added, since the location is more important.
if (HintCol < PrevHintEndCol)
HintCol = PrevHintEndCol + 1;
// FIXME: This function handles multibyte characters in the source, but
// not in the fixits. This assertion is intended to catch unintended
// use of multibyte characters in fixits. If we decide to do this, we'll
// have to track separate byte widths for the source and fixit lines.
assert((size_t)llvm::sys::locale::columnWidth(I->CodeToInsert) ==
I->CodeToInsert.size());
// This relies on one byte per column in our fixit hints.
// This should NOT use HintByteOffset, because the source might have
// Unicode characters in earlier columns.
unsigned LastColumnModified = HintCol + I->CodeToInsert.size();
if (LastColumnModified > FixItInsertionLine.size())
FixItInsertionLine.resize(LastColumnModified, ' ');
std::copy(I->CodeToInsert.begin(), I->CodeToInsert.end(),
FixItInsertionLine.begin() + HintCol);
PrevHintEndCol = LastColumnModified;
} else {
FixItInsertionLine.clear();
break;
}
}
}
expandTabs(FixItInsertionLine, DiagOpts->TabStop);
return FixItInsertionLine;
}
static ArrayRef<StringRef> copyStringArray(llvm::BumpPtrAllocator &Allocator,
ArrayRef<StringRef> Arr) {
StringRef *Buff = Allocator.Allocate<StringRef>(Arr.size());
std::copy(Arr.begin(), Arr.end(), Buff);
return llvm::makeArrayRef(Buff, Arr.size());
}
/// Look through operations that will be free to find the earliest source of
/// this value.
///
/// @param ValLoc If V has aggegate type, we will be interested in a particular
/// scalar component. This records its address; the reverse of this list gives a
/// sequence of indices appropriate for an extractvalue to locate the important
/// value. This value is updated during the function and on exit will indicate
/// similar information for the Value returned.
///
/// @param DataBits If this function looks through truncate instructions, this
/// will record the smallest size attained.
static const Value *getNoopInput(const Value *V,
SmallVectorImpl<unsigned> &ValLoc,
unsigned &DataBits,
const TargetLoweringBase &TLI,
const DataLayout &DL) {
while (true) {
// Try to look through V1; if V1 is not an instruction, it can't be looked
// through.
const Instruction *I = dyn_cast<Instruction>(V);
if (!I || I->getNumOperands() == 0) return V;
const Value *NoopInput = nullptr;
Value *Op = I->getOperand(0);
if (isa<BitCastInst>(I)) {
// Look through truly no-op bitcasts.
if (isNoopBitcast(Op->getType(), I->getType(), TLI))
NoopInput = Op;
} else if (isa<GetElementPtrInst>(I)) {
// Look through getelementptr
if (cast<GetElementPtrInst>(I)->hasAllZeroIndices())
NoopInput = Op;
} else if (isa<IntToPtrInst>(I)) {
// Look through inttoptr.
// Make sure this isn't a truncating or extending cast. We could
// support this eventually, but don't bother for now.
if (!isa<VectorType>(I->getType()) &&
DL.getPointerSizeInBits() ==
cast<IntegerType>(Op->getType())->getBitWidth())
NoopInput = Op;
} else if (isa<PtrToIntInst>(I)) {
// Look through ptrtoint.
// Make sure this isn't a truncating or extending cast. We could
// support this eventually, but don't bother for now.
if (!isa<VectorType>(I->getType()) &&
DL.getPointerSizeInBits() ==
cast<IntegerType>(I->getType())->getBitWidth())
NoopInput = Op;
} else if (isa<TruncInst>(I) &&
TLI.allowTruncateForTailCall(Op->getType(), I->getType())) {
DataBits = std::min(DataBits, I->getType()->getPrimitiveSizeInBits());
NoopInput = Op;
} else if (auto CS = ImmutableCallSite(I)) {
const Value *ReturnedOp = CS.getReturnedArgOperand();
if (ReturnedOp && isNoopBitcast(ReturnedOp->getType(), I->getType(), TLI))
NoopInput = ReturnedOp;
} else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(V)) {
// Value may come from either the aggregate or the scalar
ArrayRef<unsigned> InsertLoc = IVI->getIndices();
if (ValLoc.size() >= InsertLoc.size() &&
std::equal(InsertLoc.begin(), InsertLoc.end(), ValLoc.rbegin())) {
// The type being inserted is a nested sub-type of the aggregate; we
// have to remove those initial indices to get the location we're
// interested in for the operand.
ValLoc.resize(ValLoc.size() - InsertLoc.size());
NoopInput = IVI->getInsertedValueOperand();
} else {
// The struct we're inserting into has the value we're interested in, no
// change of address.
NoopInput = Op;
}
} else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(V)) {
// The part we're interested in will inevitably be some sub-section of the
// previous aggregate. Combine the two paths to obtain the true address of
// our element.
ArrayRef<unsigned> ExtractLoc = EVI->getIndices();
ValLoc.append(ExtractLoc.rbegin(), ExtractLoc.rend());
NoopInput = Op;
}
// Terminate if we couldn't find anything to look through.
if (!NoopInput)
return V;
V = NoopInput;
}
}
/// setCallSiteLandingPad - Map the landing pad's EH symbol to the call site
/// indexes.
void MachineModuleInfo::setCallSiteLandingPad(MCSymbol *Sym,
ArrayRef<unsigned> Sites) {
LPadToCallSiteMap[Sym].append(Sites.begin(), Sites.end());
}
void OMPCopyprivateClause::setDestinationExprs(ArrayRef<Expr *> DstExprs) {
assert(DstExprs.size() == varlist_size() && "Number of destination "
"expressions is not the same as "
"the preallocated buffer");
std::copy(DstExprs.begin(), DstExprs.end(), getSourceExprs().end());
}
/// UpdatePHINodes - Update the PHI nodes in OrigBB to include the values coming
/// from NewBB. This also updates AliasAnalysis, if available.
static void UpdatePHINodes(BasicBlock *OrigBB, BasicBlock *NewBB,
ArrayRef<BasicBlock *> Preds, BranchInst *BI,
bool HasLoopExit) {
// Otherwise, create a new PHI node in NewBB for each PHI node in OrigBB.
SmallPtrSet<BasicBlock *, 16> PredSet(Preds.begin(), Preds.end());
for (BasicBlock::iterator I = OrigBB->begin(); isa<PHINode>(I); ) {
PHINode *PN = cast<PHINode>(I++);
// Check to see if all of the values coming in are the same. If so, we
// don't need to create a new PHI node, unless it's needed for LCSSA.
Value *InVal = nullptr;
if (!HasLoopExit) {
InVal = PN->getIncomingValueForBlock(Preds[0]);
for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i) {
if (!PredSet.count(PN->getIncomingBlock(i)))
continue;
if (!InVal)
InVal = PN->getIncomingValue(i);
else if (InVal != PN->getIncomingValue(i)) {
InVal = nullptr;
break;
}
}
}
if (InVal) {
// If all incoming values for the new PHI would be the same, just don't
// make a new PHI. Instead, just remove the incoming values from the old
// PHI.
// NOTE! This loop walks backwards for a reason! First off, this minimizes
// the cost of removal if we end up removing a large number of values, and
// second off, this ensures that the indices for the incoming values
// aren't invalidated when we remove one.
for (int64_t i = PN->getNumIncomingValues() - 1; i >= 0; --i)
if (PredSet.count(PN->getIncomingBlock(i)))
PN->removeIncomingValue(i, false);
// Add an incoming value to the PHI node in the loop for the preheader
// edge.
PN->addIncoming(InVal, NewBB);
continue;
}
// If the values coming into the block are not the same, we need a new
// PHI.
// Create the new PHI node, insert it into NewBB at the end of the block
PHINode *NewPHI =
PHINode::Create(PN->getType(), Preds.size(), PN->getName() + ".ph", BI);
// NOTE! This loop walks backwards for a reason! First off, this minimizes
// the cost of removal if we end up removing a large number of values, and
// second off, this ensures that the indices for the incoming values aren't
// invalidated when we remove one.
for (int64_t i = PN->getNumIncomingValues() - 1; i >= 0; --i) {
BasicBlock *IncomingBB = PN->getIncomingBlock(i);
if (PredSet.count(IncomingBB)) {
Value *V = PN->removeIncomingValue(i, false);
NewPHI->addIncoming(V, IncomingBB);
}
}
PN->addIncoming(NewPHI, NewBB);
}
}
void OMPInReductionClause::setPrivates(ArrayRef<Expr *> Privates) {
assert(Privates.size() == varlist_size() &&
"Number of private copies is not the same as the preallocated buffer");
std::copy(Privates.begin(), Privates.end(), varlist_end());
}
static void buildFixItLine(std::string &CaretLine, std::string &FixItLine,
ArrayRef<SMFixIt> FixIts, ArrayRef<char> SourceLine){
if (FixIts.empty())
return;
const char *LineStart = SourceLine.begin();
const char *LineEnd = SourceLine.end();
size_t PrevHintEndCol = 0;
for (ArrayRef<SMFixIt>::iterator I = FixIts.begin(), E = FixIts.end();
I != E; ++I) {
// If the fixit contains a newline or tab, ignore it.
if (I->getText().find_first_of("\n\r\t") != StringRef::npos)
continue;
SMRange R = I->getRange();
// If the line doesn't contain any part of the range, then ignore it.
if (R.Start.getPointer() > LineEnd || R.End.getPointer() < LineStart)
continue;
// Translate from SMLoc to column.
// Ignore pieces of the range that go onto other lines.
// FIXME: Handle multibyte characters in the source line.
unsigned FirstCol;
if (R.Start.getPointer() < LineStart)
FirstCol = 0;
else
FirstCol = R.Start.getPointer() - LineStart;
// If we inserted a long previous hint, push this one forwards, and add
// an extra space to show that this is not part of the previous
// completion. This is sort of the best we can do when two hints appear
// to overlap.
//
// Note that if this hint is located immediately after the previous
// hint, no space will be added, since the location is more important.
unsigned HintCol = FirstCol;
if (HintCol < PrevHintEndCol)
HintCol = PrevHintEndCol + 1;
// FIXME: This assertion is intended to catch unintended use of multibyte
// characters in fixits. If we decide to do this, we'll have to track
// separate byte widths for the source and fixit lines.
assert((size_t)llvm::sys::locale::columnWidth(I->getText()) ==
I->getText().size());
// This relies on one byte per column in our fixit hints.
unsigned LastColumnModified = HintCol + I->getText().size();
if (LastColumnModified > FixItLine.size())
FixItLine.resize(LastColumnModified, ' ');
std::copy(I->getText().begin(), I->getText().end(),
FixItLine.begin() + HintCol);
PrevHintEndCol = LastColumnModified;
// For replacements, mark the removal range with '~'.
// FIXME: Handle multibyte characters in the source line.
unsigned LastCol;
if (R.End.getPointer() >= LineEnd)
LastCol = LineEnd - LineStart;
else
LastCol = R.End.getPointer() - LineStart;
std::fill(&CaretLine[FirstCol], &CaretLine[LastCol], '~');
}
}
void OMPInReductionClause::setReductionOps(ArrayRef<Expr *> ReductionOps) {
assert(ReductionOps.size() == varlist_size() && "Number of in reduction "
"expressions is not the same "
"as the preallocated buffer");
std::copy(ReductionOps.begin(), ReductionOps.end(), getRHSExprs().end());
}
void OMPFirstprivateClause::setPrivateCopies(ArrayRef<Expr *> VL) {
assert(VL.size() == varlist_size() &&
"Number of private copies is not the same as the preallocated buffer");
std::copy(VL.begin(), VL.end(), varlist_end());
}
Constraint::Constraint(ConstraintKind Kind, Type First, Type Second,
DeclName Member, ConstraintLocator *locator,
ArrayRef<TypeVariableType *> typeVars)
: Kind(Kind), HasRestriction(false), HasFix(false), IsActive(false),
RememberChoice(false), IsFavored(false), NumTypeVariables(typeVars.size()),
Types { First, Second, Member }, Locator(locator)
{
switch (Kind) {
case ConstraintKind::Bind:
case ConstraintKind::Equal:
case ConstraintKind::BindParam:
case ConstraintKind::Subtype:
case ConstraintKind::Conversion:
case ConstraintKind::ExplicitConversion:
case ConstraintKind::ArgumentConversion:
case ConstraintKind::ArgumentTupleConversion:
case ConstraintKind::OperatorArgumentTupleConversion:
case ConstraintKind::OperatorArgumentConversion:
case ConstraintKind::ConformsTo:
case ConstraintKind::CheckedCast:
case ConstraintKind::SelfObjectOfProtocol:
case ConstraintKind::DynamicTypeOf:
case ConstraintKind::OptionalObject:
assert(!First.isNull());
assert(!Second.isNull());
assert(!Member && "Relational constraint cannot have a member");
break;
case ConstraintKind::ApplicableFunction:
assert(First->is<FunctionType>()
&& "The left-hand side type should be a function type");
assert(!Member && "Relational constraint cannot have a member");
break;
case ConstraintKind::TypeMember:
case ConstraintKind::ValueMember:
case ConstraintKind::UnresolvedValueMember:
assert(Member && "Member constraint has no member");
break;
case ConstraintKind::Archetype:
case ConstraintKind::Class:
case ConstraintKind::BridgedToObjectiveC:
assert(!Member && "Type property cannot have a member");
assert(Second.isNull() && "Type property with second type");
break;
case ConstraintKind::Defaultable:
assert(!First.isNull());
assert(!Second.isNull());
assert(!Member && "Defaultable constraint cannot have a member");
break;
case ConstraintKind::BindOverload:
llvm_unreachable("Wrong constructor for overload binding constraint");
case ConstraintKind::Disjunction:
llvm_unreachable("Disjunction constraints should use create()");
}
std::copy(typeVars.begin(), typeVars.end(), getTypeVariablesBuffer().begin());
}
void OMPLinearClause::setPrivates(ArrayRef<Expr *> PL) {
assert(PL.size() == varlist_size() &&
"Number of privates is not the same as the preallocated buffer");
std::copy(PL.begin(), PL.end(), varlist_end());
}
// Helper function to fix up source ranges. It takes in an array of ranges,
// and outputs an array of ranges where we want to draw the range highlighting
// around the location specified by CaretLoc.
//
// To find locations which correspond to the caret, we crawl the macro caller
// chain for the beginning and end of each range. If the caret location
// is in a macro expansion, we search each chain for a location
// in the same expansion as the caret; otherwise, we crawl to the top of
// each chain. Two locations are part of the same macro expansion
// iff the FileID is the same.
static void mapDiagnosticRanges(
SourceLocation CaretLoc,
ArrayRef<CharSourceRange> Ranges,
SmallVectorImpl<CharSourceRange> &SpellingRanges,
const SourceManager *SM) {
FileID CaretLocFileID = SM->getFileID(CaretLoc);
for (ArrayRef<CharSourceRange>::const_iterator I = Ranges.begin(),
E = Ranges.end();
I != E; ++I) {
SourceLocation Begin = I->getBegin(), End = I->getEnd();
bool IsTokenRange = I->isTokenRange();
FileID BeginFileID = SM->getFileID(Begin);
FileID EndFileID = SM->getFileID(End);
// Find the common parent for the beginning and end of the range.
// First, crawl the expansion chain for the beginning of the range.
llvm::SmallDenseMap<FileID, SourceLocation> BeginLocsMap;
while (Begin.isMacroID() && BeginFileID != EndFileID) {
BeginLocsMap[BeginFileID] = Begin;
Begin = SM->getImmediateExpansionRange(Begin).first;
BeginFileID = SM->getFileID(Begin);
}
// Then, crawl the expansion chain for the end of the range.
if (BeginFileID != EndFileID) {
while (End.isMacroID() && !BeginLocsMap.count(EndFileID)) {
End = SM->getImmediateExpansionRange(End).second;
EndFileID = SM->getFileID(End);
}
if (End.isMacroID()) {
Begin = BeginLocsMap[EndFileID];
BeginFileID = EndFileID;
}
}
while (Begin.isMacroID() && BeginFileID != CaretLocFileID) {
if (SM->isMacroArgExpansion(Begin)) {
Begin = SM->getImmediateSpellingLoc(Begin);
End = SM->getImmediateSpellingLoc(End);
} else {
Begin = SM->getImmediateExpansionRange(Begin).first;
End = SM->getImmediateExpansionRange(End).second;
}
BeginFileID = SM->getFileID(Begin);
if (BeginFileID != SM->getFileID(End)) {
// FIXME: Ugly hack to stop a crash; this code is making bad
// assumptions and it's too complicated for me to reason
// about.
Begin = End = SourceLocation();
break;
}
}
// Return the spelling location of the beginning and end of the range.
Begin = SM->getSpellingLoc(Begin);
End = SM->getSpellingLoc(End);
SpellingRanges.push_back(CharSourceRange(SourceRange(Begin, End),
IsTokenRange));
}
}
void OMPLinearClause::setUpdates(ArrayRef<Expr *> UL) {
assert(UL.size() == varlist_size() &&
"Number of updates is not the same as the preallocated buffer");
std::copy(UL.begin(), UL.end(), getInits().end());
}
void RegisterInfoEmitter::
EmitRegUnitPressure(raw_ostream &OS, const CodeGenRegBank &RegBank,
const std::string &ClassName) {
unsigned NumRCs = RegBank.getRegClasses().size();
unsigned NumSets = RegBank.getNumRegPressureSets();
OS << "/// Get the weight in units of pressure for this register class.\n"
<< "const RegClassWeight &" << ClassName << "::\n"
<< "getRegClassWeight(const TargetRegisterClass *RC) const {\n"
<< " static const RegClassWeight RCWeightTable[] = {\n";
for (unsigned i = 0, e = NumRCs; i != e; ++i) {
const CodeGenRegisterClass &RC = *RegBank.getRegClasses()[i];
const CodeGenRegister::Set &Regs = RC.getMembers();
if (Regs.empty())
OS << " {0, 0";
else {
std::vector<unsigned> RegUnits;
RC.buildRegUnitSet(RegUnits);
OS << " {" << (*Regs.begin())->getWeight(RegBank)
<< ", " << RegBank.getRegUnitSetWeight(RegUnits);
}
OS << "}, \t// " << RC.getName() << "\n";
}
OS << " {0, 0} };\n"
<< " return RCWeightTable[RC->getID()];\n"
<< "}\n\n";
// Reasonable targets (not ARMv7) have unit weight for all units, so don't
// bother generating a table.
bool RegUnitsHaveUnitWeight = true;
for (unsigned UnitIdx = 0, UnitEnd = RegBank.getNumNativeRegUnits();
UnitIdx < UnitEnd; ++UnitIdx) {
if (RegBank.getRegUnit(UnitIdx).Weight > 1)
RegUnitsHaveUnitWeight = false;
}
OS << "/// Get the weight in units of pressure for this register unit.\n"
<< "unsigned " << ClassName << "::\n"
<< "getRegUnitWeight(unsigned RegUnit) const {\n"
<< " assert(RegUnit < " << RegBank.getNumNativeRegUnits()
<< " && \"invalid register unit\");\n";
if (!RegUnitsHaveUnitWeight) {
OS << " static const uint8_t RUWeightTable[] = {\n ";
for (unsigned UnitIdx = 0, UnitEnd = RegBank.getNumNativeRegUnits();
UnitIdx < UnitEnd; ++UnitIdx) {
const RegUnit &RU = RegBank.getRegUnit(UnitIdx);
assert(RU.Weight < 256 && "RegUnit too heavy");
OS << RU.Weight << ", ";
}
OS << "0 };\n"
<< " return RUWeightTable[RegUnit];\n";
}
else {
OS << " // All register units have unit weight.\n"
<< " return 1;\n";
}
OS << "}\n\n";
OS << "\n"
<< "// Get the number of dimensions of register pressure.\n"
<< "unsigned " << ClassName << "::getNumRegPressureSets() const {\n"
<< " return " << NumSets << ";\n}\n\n";
OS << "// Get the name of this register unit pressure set.\n"
<< "const char *" << ClassName << "::\n"
<< "getRegPressureSetName(unsigned Idx) const {\n"
<< " static const char *PressureNameTable[] = {\n";
for (unsigned i = 0; i < NumSets; ++i ) {
OS << " \"" << RegBank.getRegSetAt(i).Name << "\",\n";
}
OS << " 0 };\n"
<< " return PressureNameTable[Idx];\n"
<< "}\n\n";
OS << "// Get the register unit pressure limit for this dimension.\n"
<< "// This limit must be adjusted dynamically for reserved registers.\n"
<< "unsigned " << ClassName << "::\n"
<< "getRegPressureSetLimit(unsigned Idx) const {\n"
<< " static const unsigned PressureLimitTable[] = {\n";
for (unsigned i = 0; i < NumSets; ++i ) {
const RegUnitSet &RegUnits = RegBank.getRegSetAt(i);
OS << " " << RegUnits.Weight << ", \t// " << i << ": "
<< RegUnits.Name << "\n";
}
OS << " 0 };\n"
<< " return PressureLimitTable[Idx];\n"
<< "}\n\n";
// This table may be larger than NumRCs if some register units needed a list
// of unit sets that did not correspond to a register class.
unsigned NumRCUnitSets = RegBank.getNumRegClassPressureSetLists();
OS << "/// Table of pressure sets per register class or unit.\n"
<< "static const int RCSetsTable[] = {\n ";
std::vector<unsigned> RCSetStarts(NumRCUnitSets);
for (unsigned i = 0, StartIdx = 0, e = NumRCUnitSets; i != e; ++i) {
RCSetStarts[i] = StartIdx;
ArrayRef<unsigned> PSetIDs = RegBank.getRCPressureSetIDs(i);
std::vector<unsigned> PSets;
PSets.reserve(PSetIDs.size());
for (ArrayRef<unsigned>::iterator PSetI = PSetIDs.begin(),
PSetE = PSetIDs.end(); PSetI != PSetE; ++PSetI) {
PSets.push_back(RegBank.getRegPressureSet(*PSetI).Order);
}
std::sort(PSets.begin(), PSets.end());
for (unsigned j = 0, e = PSets.size(); j < e; ++j) {
OS << PSets[j] << ", ";
++StartIdx;
}
OS << "-1, \t// #" << RCSetStarts[i] << " ";
if (i < NumRCs)
OS << RegBank.getRegClasses()[i]->getName();
else {
OS << "inferred";
for (ArrayRef<unsigned>::iterator PSetI = PSetIDs.begin(),
PSetE = PSetIDs.end(); PSetI != PSetE; ++PSetI) {
OS << "~" << RegBank.getRegSetAt(*PSetI).Name;
}
}
OS << "\n ";
++StartIdx;
}
OS << "-1 };\n\n";
OS << "/// Get the dimensions of register pressure impacted by this "
<< "register class.\n"
<< "/// Returns a -1 terminated array of pressure set IDs\n"
<< "const int* " << ClassName << "::\n"
<< "getRegClassPressureSets(const TargetRegisterClass *RC) const {\n";
OS << " static const unsigned RCSetStartTable[] = {\n ";
for (unsigned i = 0, e = NumRCs; i != e; ++i) {
OS << RCSetStarts[i] << ",";
}
OS << "0 };\n"
<< " unsigned SetListStart = RCSetStartTable[RC->getID()];\n"
<< " return &RCSetsTable[SetListStart];\n"
<< "}\n\n";
OS << "/// Get the dimensions of register pressure impacted by this "
<< "register unit.\n"
<< "/// Returns a -1 terminated array of pressure set IDs\n"
<< "const int* " << ClassName << "::\n"
<< "getRegUnitPressureSets(unsigned RegUnit) const {\n"
<< " assert(RegUnit < " << RegBank.getNumNativeRegUnits()
<< " && \"invalid register unit\");\n";
OS << " static const unsigned RUSetStartTable[] = {\n ";
for (unsigned UnitIdx = 0, UnitEnd = RegBank.getNumNativeRegUnits();
UnitIdx < UnitEnd; ++UnitIdx) {
OS << RCSetStarts[RegBank.getRegUnit(UnitIdx).RegClassUnitSetsIdx] << ",";
}
OS << "0 };\n"
<< " unsigned SetListStart = RUSetStartTable[RegUnit];\n"
<< " return &RCSetsTable[SetListStart];\n"
<< "}\n\n";
}
void OMPLinearClause::setFinals(ArrayRef<Expr *> FL) {
assert(FL.size() == varlist_size() &&
"Number of final updates is not the same as the preallocated buffer");
std::copy(FL.begin(), FL.end(), getUpdates().end());
}
bool Sema::CheckParameterPacksForExpansion(
SourceLocation EllipsisLoc, SourceRange PatternRange,
ArrayRef<UnexpandedParameterPack> Unexpanded,
const MultiLevelTemplateArgumentList &TemplateArgs, bool &ShouldExpand,
bool &RetainExpansion, Optional<unsigned> &NumExpansions) {
ShouldExpand = true;
RetainExpansion = false;
std::pair<IdentifierInfo *, SourceLocation> FirstPack;
bool HaveFirstPack = false;
for (ArrayRef<UnexpandedParameterPack>::iterator i = Unexpanded.begin(),
end = Unexpanded.end();
i != end; ++i) {
// Compute the depth and index for this parameter pack.
unsigned Depth = 0, Index = 0;
IdentifierInfo *Name;
bool IsFunctionParameterPack = false;
if (const TemplateTypeParmType *TTP
= i->first.dyn_cast<const TemplateTypeParmType *>()) {
Depth = TTP->getDepth();
Index = TTP->getIndex();
Name = TTP->getIdentifier();
} else {
NamedDecl *ND = i->first.get<NamedDecl *>();
if (isa<ParmVarDecl>(ND))
IsFunctionParameterPack = true;
else
std::tie(Depth, Index) = getDepthAndIndex(ND);
Name = ND->getIdentifier();
}
// Determine the size of this argument pack.
unsigned NewPackSize;
if (IsFunctionParameterPack) {
// Figure out whether we're instantiating to an argument pack or not.
typedef LocalInstantiationScope::DeclArgumentPack DeclArgumentPack;
llvm::PointerUnion<Decl *, DeclArgumentPack *> *Instantiation
= CurrentInstantiationScope->findInstantiationOf(
i->first.get<NamedDecl *>());
if (Instantiation->is<DeclArgumentPack *>()) {
// We could expand this function parameter pack.
NewPackSize = Instantiation->get<DeclArgumentPack *>()->size();
} else {
// We can't expand this function parameter pack, so we can't expand
// the pack expansion.
ShouldExpand = false;
continue;
}
} else {
// If we don't have a template argument at this depth/index, then we
// cannot expand the pack expansion. Make a note of this, but we still
// want to check any parameter packs we *do* have arguments for.
if (Depth >= TemplateArgs.getNumLevels() ||
!TemplateArgs.hasTemplateArgument(Depth, Index)) {
ShouldExpand = false;
continue;
}
// Determine the size of the argument pack.
NewPackSize = TemplateArgs(Depth, Index).pack_size();
}
// C++0x [temp.arg.explicit]p9:
// Template argument deduction can extend the sequence of template
// arguments corresponding to a template parameter pack, even when the
// sequence contains explicitly specified template arguments.
if (!IsFunctionParameterPack && CurrentInstantiationScope) {
if (NamedDecl *PartialPack
= CurrentInstantiationScope->getPartiallySubstitutedPack()){
unsigned PartialDepth, PartialIndex;
std::tie(PartialDepth, PartialIndex) = getDepthAndIndex(PartialPack);
if (PartialDepth == Depth && PartialIndex == Index)
RetainExpansion = true;
}
}
if (!NumExpansions) {
// The is the first pack we've seen for which we have an argument.
// Record it.
NumExpansions = NewPackSize;
FirstPack.first = Name;
FirstPack.second = i->second;
HaveFirstPack = true;
continue;
}
if (NewPackSize != *NumExpansions) {
// C++0x [temp.variadic]p5:
// All of the parameter packs expanded by a pack expansion shall have
// the same number of arguments specified.
if (HaveFirstPack)
Diag(EllipsisLoc, diag::err_pack_expansion_length_conflict)
<< FirstPack.first << Name << *NumExpansions << NewPackSize
<< SourceRange(FirstPack.second) << SourceRange(i->second);
else
Diag(EllipsisLoc, diag::err_pack_expansion_length_conflict_multilevel)
<< Name << *NumExpansions << NewPackSize
<< SourceRange(i->second);
return true;
}
}
return false;
}
void OMPCopyprivateClause::setSourceExprs(ArrayRef<Expr *> SrcExprs) {
assert(SrcExprs.size() == varlist_size() && "Number of source expressions is "
"not the same as the "
"preallocated buffer");
std::copy(SrcExprs.begin(), SrcExprs.end(), varlist_end());
}
unsigned MDNodeOpsKey::calculateHash(ArrayRef<Metadata *> Ops) {
return hash_combine_range(Ops.begin(), Ops.end());
}
/// \brief Convenient wrapper for checking membership in RegisterOperands.
/// (std::count() doesn't have an early exit).
static bool containsReg(ArrayRef<unsigned> RegUnits, unsigned RegUnit) {
return std::find(RegUnits.begin(), RegUnits.end(), RegUnit) != RegUnits.end();
}