//
//===----------------------------------------------------------------------===//
-#include "InstrInfoEmitter.h"
+
+#include "CodeGenDAGPatterns.h"
+#include "CodeGenSchedule.h"
#include "CodeGenTarget.h"
-#include "Record.h"
+#include "SequenceToOffsetTable.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/TableGen/Record.h"
+#include "llvm/TableGen/TableGenBackend.h"
#include <algorithm>
-#include <iostream>
+#include <cstdio>
+#include <map>
+#include <vector>
using namespace llvm;
-static void PrintDefList(const std::vector<Record*> &Uses,
- unsigned Num, std::ostream &OS) {
- OS << "static const unsigned ImplicitList" << Num << "[] = { ";
- for (unsigned i = 0, e = Uses.size(); i != e; ++i)
- OS << getQualifiedName(Uses[i]) << ", ";
- OS << "0 };\n";
-}
+namespace {
+class InstrInfoEmitter {
+ RecordKeeper &Records;
+ CodeGenDAGPatterns CDP;
+ const CodeGenSchedModels &SchedModels;
-//===----------------------------------------------------------------------===//
-// Instruction Itinerary Information.
-//===----------------------------------------------------------------------===//
+public:
+ InstrInfoEmitter(RecordKeeper &R):
+ Records(R), CDP(R), SchedModels(CDP.getTargetInfo().getSchedModels()) {}
-struct RecordNameComparator {
- bool operator()(const Record *Rec1, const Record *Rec2) const {
- return Rec1->getName() < Rec2->getName();
- }
+ // run - Output the instruction set description.
+ void run(raw_ostream &OS);
+
+private:
+ void emitEnums(raw_ostream &OS);
+
+ typedef std::map<std::vector<std::string>, unsigned> OperandInfoMapTy;
+ void emitRecord(const CodeGenInstruction &Inst, unsigned Num,
+ Record *InstrInfo,
+ std::map<std::vector<Record*>, unsigned> &EL,
+ const OperandInfoMapTy &OpInfo,
+ raw_ostream &OS);
+
+ // Operand information.
+ void EmitOperandInfo(raw_ostream &OS, OperandInfoMapTy &OperandInfoIDs);
+ std::vector<std::string> GetOperandInfo(const CodeGenInstruction &Inst);
};
+} // End anonymous namespace
-void InstrInfoEmitter::GatherItinClasses() {
- std::vector<Record*> DefList =
- Records.getAllDerivedDefinitions("InstrItinClass");
- std::sort(DefList.begin(), DefList.end(), RecordNameComparator());
-
- for (unsigned i = 0, N = DefList.size(); i < N; i++)
- ItinClassMap[DefList[i]->getName()] = i;
-}
-
-unsigned InstrInfoEmitter::getItinClassNumber(const Record *InstRec) {
- return ItinClassMap[InstRec->getValueAsDef("Itinerary")->getName()];
+static void PrintDefList(const std::vector<Record*> &Uses,
+ unsigned Num, raw_ostream &OS) {
+ OS << "static const uint16_t ImplicitList" << Num << "[] = { ";
+ for (unsigned i = 0, e = Uses.size(); i != e; ++i)
+ OS << getQualifiedName(Uses[i]) << ", ";
+ OS << "0 };\n";
}
//===----------------------------------------------------------------------===//
std::vector<std::string>
InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
std::vector<std::string> Result;
-
- for (unsigned i = 0, e = Inst.OperandList.size(); i != e; ++i) {
+
+ for (unsigned i = 0, e = Inst.Operands.size(); i != e; ++i) {
// Handle aggregate operands and normal operands the same way by expanding
// either case into a list of operands for this op.
- std::vector<CodeGenInstruction::OperandInfo> OperandList;
+ std::vector<CGIOperandList::OperandInfo> OperandList;
// This might be a multiple operand thing. Targets like X86 have
// registers in their multi-operand operands. It may also be an anonymous
// operand, which has a single operand, but no declared class for the
// operand.
- DagInit *MIOI = Inst.OperandList[i].MIOperandInfo;
-
+ DagInit *MIOI = Inst.Operands[i].MIOperandInfo;
+
if (!MIOI || MIOI->getNumArgs() == 0) {
// Single, anonymous, operand.
- OperandList.push_back(Inst.OperandList[i]);
+ OperandList.push_back(Inst.Operands[i]);
} else {
- for (unsigned j = 0, e = Inst.OperandList[i].MINumOperands; j != e; ++j) {
- OperandList.push_back(Inst.OperandList[i]);
+ for (unsigned j = 0, e = Inst.Operands[i].MINumOperands; j != e; ++j) {
+ OperandList.push_back(Inst.Operands[i]);
- Record *OpR = dynamic_cast<DefInit*>(MIOI->getArg(j))->getDef();
+ Record *OpR = cast<DefInit>(MIOI->getArg(j))->getDef();
OperandList.back().Rec = OpR;
}
}
for (unsigned j = 0, e = OperandList.size(); j != e; ++j) {
Record *OpR = OperandList[j].Rec;
std::string Res;
-
+
+ if (OpR->isSubClassOf("RegisterOperand"))
+ OpR = OpR->getValueAsDef("RegClass");
if (OpR->isSubClassOf("RegisterClass"))
Res += getQualifiedName(OpR) + "RegClassID, ";
+ else if (OpR->isSubClassOf("PointerLikeRegClass"))
+ Res += utostr(OpR->getValueAsInt("RegClassKind")) + ", ";
else
- Res += "0, ";
+ // -1 means the operand does not have a fixed register class.
+ Res += "-1, ";
+
// Fill in applicable flags.
Res += "0";
-
+
// Ptr value whose register class is resolved via callback.
- if (OpR->getName() == "ptr_rc")
- Res += "|(1<<TOI::LookupPtrRegClass)";
+ if (OpR->isSubClassOf("PointerLikeRegClass"))
+ Res += "|(1<<MCOI::LookupPtrRegClass)";
// Predicate operands. Check to see if the original unexpanded operand
// was of type PredicateOperand.
- if (Inst.OperandList[i].Rec->isSubClassOf("PredicateOperand"))
- Res += "|(1<<TOI::Predicate)";
-
+ if (Inst.Operands[i].Rec->isSubClassOf("PredicateOperand"))
+ Res += "|(1<<MCOI::Predicate)";
+
// Optional def operands. Check to see if the original unexpanded operand
// was of type OptionalDefOperand.
- if (Inst.OperandList[i].Rec->isSubClassOf("OptionalDefOperand"))
- Res += "|(1<<TOI::OptionalDef)";
+ if (Inst.Operands[i].Rec->isSubClassOf("OptionalDefOperand"))
+ Res += "|(1<<MCOI::OptionalDef)";
+
+ // Fill in operand type.
+ Res += ", MCOI::";
+ assert(!Inst.Operands[i].OperandType.empty() && "Invalid operand type.");
+ Res += Inst.Operands[i].OperandType;
// Fill in constraint info.
- Res += ", " + Inst.OperandList[i].Constraints[j];
+ Res += ", ";
+
+ const CGIOperandList::ConstraintInfo &Constraint =
+ Inst.Operands[i].Constraints[j];
+ if (Constraint.isNone())
+ Res += "0";
+ else if (Constraint.isEarlyClobber())
+ Res += "(1 << MCOI::EARLY_CLOBBER)";
+ else {
+ assert(Constraint.isTied());
+ Res += "((" + utostr(Constraint.getTiedOperand()) +
+ " << 16) | (1 << MCOI::TIED_TO))";
+ }
+
Result.push_back(Res);
}
}
return Result;
}
-void InstrInfoEmitter::EmitOperandInfo(std::ostream &OS,
+void InstrInfoEmitter::EmitOperandInfo(raw_ostream &OS,
OperandInfoMapTy &OperandInfoIDs) {
// ID #0 is for no operand info.
unsigned OperandListNum = 0;
OperandInfoIDs[std::vector<std::string>()] = ++OperandListNum;
-
+
OS << "\n";
const CodeGenTarget &Target = CDP.getTargetInfo();
for (CodeGenTarget::inst_iterator II = Target.inst_begin(),
E = Target.inst_end(); II != E; ++II) {
- std::vector<std::string> OperandInfo = GetOperandInfo(II->second);
+ std::vector<std::string> OperandInfo = GetOperandInfo(**II);
unsigned &N = OperandInfoIDs[OperandInfo];
if (N != 0) continue;
-
+
N = ++OperandListNum;
- OS << "static const TargetOperandInfo OperandInfo" << N << "[] = { ";
+ OS << "static const MCOperandInfo OperandInfo" << N << "[] = { ";
for (unsigned i = 0, e = OperandInfo.size(); i != e; ++i)
OS << "{ " << OperandInfo[i] << " }, ";
OS << "};\n";
//===----------------------------------------------------------------------===//
// run - Emit the main instruction description records for the target...
-void InstrInfoEmitter::run(std::ostream &OS) {
- GatherItinClasses();
+void InstrInfoEmitter::run(raw_ostream &OS) {
+ emitSourceFileHeader("Target Instruction Enum Values", OS);
+ emitEnums(OS);
+
+ emitSourceFileHeader("Target Instruction Descriptors", OS);
+
+ OS << "\n#ifdef GET_INSTRINFO_MC_DESC\n";
+ OS << "#undef GET_INSTRINFO_MC_DESC\n";
- EmitSourceFileHeader("Target Instruction Descriptors", OS);
OS << "namespace llvm {\n\n";
CodeGenTarget &Target = CDP.getTargetInfo();
// Keep track of all of the def lists we have emitted already.
std::map<std::vector<Record*>, unsigned> EmittedLists;
unsigned ListNumber = 0;
-
+
// Emit all of the instruction's implicit uses and defs.
for (CodeGenTarget::inst_iterator II = Target.inst_begin(),
E = Target.inst_end(); II != E; ++II) {
- Record *Inst = II->second.TheDef;
+ Record *Inst = (*II)->TheDef;
std::vector<Record*> Uses = Inst->getValueAsListOfDefs("Uses");
if (!Uses.empty()) {
unsigned &IL = EmittedLists[Uses];
}
OperandInfoMapTy OperandInfoIDs;
-
+
// Emit all of the operand info records.
EmitOperandInfo(OS, OperandInfoIDs);
-
- // Emit all of the TargetInstrDesc records in their ENUM ordering.
+
+ // Emit all of the MCInstrDesc records in their ENUM ordering.
//
- OS << "\nstatic const TargetInstrDesc " << TargetName
- << "Insts[] = {\n";
- std::vector<const CodeGenInstruction*> NumberedInstructions;
- Target.getInstructionsByEnumValue(NumberedInstructions);
+ OS << "\nextern const MCInstrDesc " << TargetName << "Insts[] = {\n";
+ const std::vector<const CodeGenInstruction*> &NumberedInstructions =
+ Target.getInstructionsByEnumValue();
for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i)
emitRecord(*NumberedInstructions[i], i, InstrInfo, EmittedLists,
OperandInfoIDs, OS);
- OS << "};\n";
+ OS << "};\n\n";
+
+ // Build an array of instruction names
+ SequenceToOffsetTable<std::string> InstrNames;
+ for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
+ const CodeGenInstruction *Instr = NumberedInstructions[i];
+ InstrNames.add(Instr->TheDef->getName());
+ }
+
+ InstrNames.layout();
+ OS << "extern const char " << TargetName << "InstrNameData[] = {\n";
+ InstrNames.emit(OS, printChar);
+ OS << "};\n\n";
+
+ OS << "extern const unsigned " << TargetName <<"InstrNameIndices[] = {";
+ for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
+ if (i % 8 == 0)
+ OS << "\n ";
+ const CodeGenInstruction *Instr = NumberedInstructions[i];
+ OS << InstrNames.get(Instr->TheDef->getName()) << "U, ";
+ }
+
+ OS << "\n};\n\n";
+
+ // MCInstrInfo initialization routine.
+ OS << "static inline void Init" << TargetName
+ << "MCInstrInfo(MCInstrInfo *II) {\n";
+ OS << " II->InitMCInstrInfo(" << TargetName << "Insts, "
+ << TargetName << "InstrNameIndices, " << TargetName << "InstrNameData, "
+ << NumberedInstructions.size() << ");\n}\n\n";
+
+ OS << "} // End llvm namespace \n";
+
+ OS << "#endif // GET_INSTRINFO_MC_DESC\n\n";
+
+ // Create a TargetInstrInfo subclass to hide the MC layer initialization.
+ OS << "\n#ifdef GET_INSTRINFO_HEADER\n";
+ OS << "#undef GET_INSTRINFO_HEADER\n";
+
+ std::string ClassName = TargetName + "GenInstrInfo";
+ OS << "namespace llvm {\n";
+ OS << "struct " << ClassName << " : public TargetInstrInfoImpl {\n"
+ << " explicit " << ClassName << "(int SO = -1, int DO = -1);\n"
+ << "};\n";
+ OS << "} // End llvm namespace \n";
+
+ OS << "#endif // GET_INSTRINFO_HEADER\n\n";
+
+ OS << "\n#ifdef GET_INSTRINFO_CTOR\n";
+ OS << "#undef GET_INSTRINFO_CTOR\n";
+
+ OS << "namespace llvm {\n";
+ OS << "extern const MCInstrDesc " << TargetName << "Insts[];\n";
+ OS << "extern const unsigned " << TargetName << "InstrNameIndices[];\n";
+ OS << "extern const char " << TargetName << "InstrNameData[];\n";
+ OS << ClassName << "::" << ClassName << "(int SO, int DO)\n"
+ << " : TargetInstrInfoImpl(SO, DO) {\n"
+ << " InitMCInstrInfo(" << TargetName << "Insts, "
+ << TargetName << "InstrNameIndices, " << TargetName << "InstrNameData, "
+ << NumberedInstructions.size() << ");\n}\n";
OS << "} // End llvm namespace \n";
+
+ OS << "#endif // GET_INSTRINFO_CTOR\n\n";
}
void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
Record *InstrInfo,
std::map<std::vector<Record*>, unsigned> &EmittedLists,
const OperandInfoMapTy &OpInfo,
- std::ostream &OS) {
+ raw_ostream &OS) {
int MinOperands = 0;
- if (!Inst.OperandList.empty())
+ if (!Inst.Operands.size() == 0)
// Each logical operand can be multiple MI operands.
- MinOperands = Inst.OperandList.back().MIOperandNo +
- Inst.OperandList.back().MINumOperands;
-
+ MinOperands = Inst.Operands.back().MIOperandNo +
+ Inst.Operands.back().MINumOperands;
+
OS << " { ";
OS << Num << ",\t" << MinOperands << ",\t"
- << Inst.NumDefs << ",\t" << getItinClassNumber(Inst.TheDef)
- << ",\t\"" << Inst.TheDef->getName() << "\", 0";
+ << Inst.Operands.NumDefs << ",\t"
+ << SchedModels.getSchedClassIdx(Inst) << ",\t"
+ << Inst.TheDef->getValueAsInt("Size") << ",\t0";
// Emit all of the target indepedent flags...
- if (Inst.isReturn) OS << "|(1<<TID::Return)";
- if (Inst.isBranch) OS << "|(1<<TID::Branch)";
- if (Inst.isIndirectBranch) OS << "|(1<<TID::IndirectBranch)";
- if (Inst.isBarrier) OS << "|(1<<TID::Barrier)";
- if (Inst.hasDelaySlot) OS << "|(1<<TID::DelaySlot)";
- if (Inst.isCall) OS << "|(1<<TID::Call)";
- if (Inst.isSimpleLoad) OS << "|(1<<TID::SimpleLoad)";
- if (Inst.mayLoad) OS << "|(1<<TID::MayLoad)";
- if (Inst.mayStore) OS << "|(1<<TID::MayStore)";
- if (Inst.isPredicable) OS << "|(1<<TID::Predicable)";
- if (Inst.isConvertibleToThreeAddress) OS << "|(1<<TID::ConvertibleTo3Addr)";
- if (Inst.isCommutable) OS << "|(1<<TID::Commutable)";
- if (Inst.isTerminator) OS << "|(1<<TID::Terminator)";
- if (Inst.isReMaterializable) OS << "|(1<<TID::Rematerializable)";
- if (Inst.isNotDuplicable) OS << "|(1<<TID::NotDuplicable)";
- if (Inst.hasOptionalDef) OS << "|(1<<TID::HasOptionalDef)";
- if (Inst.usesCustomDAGSchedInserter)
- OS << "|(1<<TID::UsesCustomDAGSchedInserter)";
- if (Inst.isVariadic) OS << "|(1<<TID::Variadic)";
- if (Inst.hasSideEffects) OS << "|(1<<TID::UnmodeledSideEffects)";
- if (Inst.isAsCheapAsAMove) OS << "|(1<<TID::CheapAsAMove)";
- OS << ", 0";
+ if (Inst.isPseudo) OS << "|(1<<MCID::Pseudo)";
+ if (Inst.isReturn) OS << "|(1<<MCID::Return)";
+ if (Inst.isBranch) OS << "|(1<<MCID::Branch)";
+ if (Inst.isIndirectBranch) OS << "|(1<<MCID::IndirectBranch)";
+ if (Inst.isCompare) OS << "|(1<<MCID::Compare)";
+ if (Inst.isMoveImm) OS << "|(1<<MCID::MoveImm)";
+ if (Inst.isBitcast) OS << "|(1<<MCID::Bitcast)";
+ if (Inst.isSelect) OS << "|(1<<MCID::Select)";
+ if (Inst.isBarrier) OS << "|(1<<MCID::Barrier)";
+ if (Inst.hasDelaySlot) OS << "|(1<<MCID::DelaySlot)";
+ if (Inst.isCall) OS << "|(1<<MCID::Call)";
+ if (Inst.canFoldAsLoad) OS << "|(1<<MCID::FoldableAsLoad)";
+ if (Inst.mayLoad) OS << "|(1<<MCID::MayLoad)";
+ if (Inst.mayStore) OS << "|(1<<MCID::MayStore)";
+ if (Inst.isPredicable) OS << "|(1<<MCID::Predicable)";
+ if (Inst.isConvertibleToThreeAddress) OS << "|(1<<MCID::ConvertibleTo3Addr)";
+ if (Inst.isCommutable) OS << "|(1<<MCID::Commutable)";
+ if (Inst.isTerminator) OS << "|(1<<MCID::Terminator)";
+ if (Inst.isReMaterializable) OS << "|(1<<MCID::Rematerializable)";
+ if (Inst.isNotDuplicable) OS << "|(1<<MCID::NotDuplicable)";
+ if (Inst.Operands.hasOptionalDef) OS << "|(1<<MCID::HasOptionalDef)";
+ if (Inst.usesCustomInserter) OS << "|(1<<MCID::UsesCustomInserter)";
+ if (Inst.hasPostISelHook) OS << "|(1<<MCID::HasPostISelHook)";
+ if (Inst.Operands.isVariadic)OS << "|(1<<MCID::Variadic)";
+ if (Inst.hasSideEffects) OS << "|(1<<MCID::UnmodeledSideEffects)";
+ if (Inst.isAsCheapAsAMove) OS << "|(1<<MCID::CheapAsAMove)";
+ if (Inst.hasExtraSrcRegAllocReq) OS << "|(1<<MCID::ExtraSrcRegAllocReq)";
+ if (Inst.hasExtraDefRegAllocReq) OS << "|(1<<MCID::ExtraDefRegAllocReq)";
// Emit all of the target-specific flags...
- ListInit *LI = InstrInfo->getValueAsListInit("TSFlagsFields");
- ListInit *Shift = InstrInfo->getValueAsListInit("TSFlagsShifts");
- if (LI->getSize() != Shift->getSize())
- throw "Lengths of " + InstrInfo->getName() +
- ":(TargetInfoFields, TargetInfoPositions) must be equal!";
-
- for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
- emitShiftedValue(Inst.TheDef, dynamic_cast<StringInit*>(LI->getElement(i)),
- dynamic_cast<IntInit*>(Shift->getElement(i)), OS);
-
- OS << ", ";
+ BitsInit *TSF = Inst.TheDef->getValueAsBitsInit("TSFlags");
+ if (!TSF) throw "no TSFlags?";
+ uint64_t Value = 0;
+ for (unsigned i = 0, e = TSF->getNumBits(); i != e; ++i) {
+ if (BitInit *Bit = dyn_cast<BitInit>(TSF->getBit(i)))
+ Value |= uint64_t(Bit->getValue()) << i;
+ else
+ throw "Invalid TSFlags bit in " + Inst.TheDef->getName();
+ }
+ OS << ", 0x";
+ OS.write_hex(Value);
+ OS << "ULL, ";
// Emit the implicit uses and defs lists...
std::vector<Record*> UseList = Inst.TheDef->getValueAsListOfDefs("Uses");
OS << "0";
else
OS << "OperandInfo" << OpInfo.find(OperandInfo)->second;
-
+
OS << " }, // Inst #" << Num << " = " << Inst.TheDef->getName() << "\n";
}
+// emitEnums - Print out enum values for all of the instructions.
+void InstrInfoEmitter::emitEnums(raw_ostream &OS) {
+
+ OS << "\n#ifdef GET_INSTRINFO_ENUM\n";
+ OS << "#undef GET_INSTRINFO_ENUM\n";
+
+ OS << "namespace llvm {\n\n";
+
+ CodeGenTarget Target(Records);
-void InstrInfoEmitter::emitShiftedValue(Record *R, StringInit *Val,
- IntInit *ShiftInt, std::ostream &OS) {
- if (Val == 0 || ShiftInt == 0)
- throw std::string("Illegal value or shift amount in TargetInfo*!");
- RecordVal *RV = R->getValue(Val->getValue());
- int Shift = ShiftInt->getValue();
-
- if (RV == 0 || RV->getValue() == 0) {
- // This isn't an error if this is a builtin instruction.
- if (R->getName() != "PHI" &&
- R->getName() != "INLINEASM" &&
- R->getName() != "LABEL" &&
- R->getName() != "DECLARE" &&
- R->getName() != "EXTRACT_SUBREG" &&
- R->getName() != "INSERT_SUBREG" &&
- R->getName() != "IMPLICIT_DEF" &&
- R->getName() != "SUBREG_TO_REG")
- throw R->getName() + " doesn't have a field named '" +
- Val->getValue() + "'!";
- return;
+ // We must emit the PHI opcode first...
+ std::string Namespace = Target.getInstNamespace();
+
+ if (Namespace.empty()) {
+ fprintf(stderr, "No instructions defined!\n");
+ exit(1);
}
- Init *Value = RV->getValue();
- if (BitInit *BI = dynamic_cast<BitInit*>(Value)) {
- if (BI->getValue()) OS << "|(1<<" << Shift << ")";
- return;
- } else if (BitsInit *BI = dynamic_cast<BitsInit*>(Value)) {
- // Convert the Bits to an integer to print...
- Init *I = BI->convertInitializerTo(new IntRecTy());
- if (I)
- if (IntInit *II = dynamic_cast<IntInit*>(I)) {
- if (II->getValue()) {
- if (Shift)
- OS << "|(" << II->getValue() << "<<" << Shift << ")";
- else
- OS << "|" << II->getValue();
- }
- return;
- }
+ const std::vector<const CodeGenInstruction*> &NumberedInstructions =
+ Target.getInstructionsByEnumValue();
- } else if (IntInit *II = dynamic_cast<IntInit*>(Value)) {
- if (II->getValue()) {
- if (Shift)
- OS << "|(" << II->getValue() << "<<" << Shift << ")";
- else
- OS << II->getValue();
- }
- return;
+ OS << "namespace " << Namespace << " {\n";
+ OS << " enum {\n";
+ for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
+ OS << " " << NumberedInstructions[i]->TheDef->getName()
+ << "\t= " << i << ",\n";
}
+ OS << " INSTRUCTION_LIST_END = " << NumberedInstructions.size() << "\n";
+ OS << " };\n}\n";
+ OS << "} // End llvm namespace \n";
+
+ OS << "#endif // GET_INSTRINFO_ENUM\n\n";
+}
+
+namespace llvm {
- std::cerr << "Unhandled initializer: " << *Val << "\n";
- throw "In record '" + R->getName() + "' for TSFlag emission.";
+void EmitInstrInfo(RecordKeeper &RK, raw_ostream &OS) {
+ InstrInfoEmitter(RK).run(OS);
}
+} // End llvm namespace
projects / oota-llvm.git / blobdiff