1 files changed, 0 insertions, 293 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/BTFDebug.h b/llvm/lib/CodeGen/AsmPrinter/BTFDebug.h
deleted file mode 100644
index 736ef696f7c..00000000000
--- a/llvm/lib/CodeGen/AsmPrinter/BTFDebug.h
+++ /dev/null
@@ -1,293 +0,0 @@
-//===- llvm/lib/CodeGen/AsmPrinter/BTFDebug.h -------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// This file contains support for writing BTF debug info.
-///
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_BTFDEBUG_H
-#define LLVM_LIB_CODEGEN_ASMPRINTER_BTFDEBUG_H
-
-#include "DebugHandlerBase.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/BinaryFormat/BTF.h"
-#include <unordered_map>
-
-namespace llvm {
-
-class AsmPrinter;
-class BTFDebug;
-class DIType;
-class MCStreamer;
-class MCSymbol;
-class MachineFunction;
-
-/// The base class for BTF type generation.
-class BTFTypeBase {
-protected:
-  uint8_t Kind;
-  uint32_t Id;
-  struct BTF::CommonType BTFType;
-
-public:
-  virtual ~BTFTypeBase() = default;
-  void setId(uint32_t Id) { this->Id = Id; }
-  uint32_t getId() { return Id; }
-  uint32_t roundupToBytes(uint32_t NumBits) { return (NumBits + 7) >> 3; }
-  /// Get the size of this BTF type entry.
-  virtual uint32_t getSize() { return BTF::CommonTypeSize; }
-  /// Complete BTF type generation after all related DebugInfo types
-  /// have been visited so their BTF type id's are available
-  /// for cross referece.
-  virtual void completeType(BTFDebug &BDebug) {}
-  /// Emit types for this BTF type entry.
-  virtual void emitType(MCStreamer &OS);
-};
-
-/// Handle several derived types include pointer, const,
-/// volatile, typedef and restrict.
-class BTFTypeDerived : public BTFTypeBase {
-  const DIDerivedType *DTy;
-
-public:
-  BTFTypeDerived(const DIDerivedType *Ty, unsigned Tag);
-  void completeType(BTFDebug &BDebug);
-  void emitType(MCStreamer &OS);
-};
-
-/// Handle struct or union forward declaration.
-class BTFTypeFwd : public BTFTypeBase {
-  StringRef Name;
-
-public:
-  BTFTypeFwd(StringRef Name);
-  void completeType(BTFDebug &BDebug);
-  void emitType(MCStreamer &OS);
-};
-
-/// Handle int type.
-class BTFTypeInt : public BTFTypeBase {
-  StringRef Name;
-  uint32_t IntVal; ///< Encoding, offset, bits
-
-public:
-  BTFTypeInt(uint32_t Encoding, uint32_t SizeInBits, uint32_t OffsetInBits,
-             StringRef TypeName);
-  uint32_t getSize() { return BTFTypeBase::getSize() + sizeof(uint32_t); }
-  void completeType(BTFDebug &BDebug);
-  void emitType(MCStreamer &OS);
-};
-
-/// Handle enumerate type.
-class BTFTypeEnum : public BTFTypeBase {
-  const DICompositeType *ETy;
-  std::vector<struct BTF::BTFEnum> EnumValues;
-
-public:
-  BTFTypeEnum(const DICompositeType *ETy, uint32_t NumValues);
-  uint32_t getSize() {
-    return BTFTypeBase::getSize() + EnumValues.size() * BTF::BTFEnumSize;
-  }
-  void completeType(BTFDebug &BDebug);
-  void emitType(MCStreamer &OS);
-};
-
-/// Handle array type.
-class BTFTypeArray : public BTFTypeBase {
-  const DICompositeType *ATy;
-  struct BTF::BTFArray ArrayInfo;
-
-public:
-  BTFTypeArray(const DICompositeType *ATy);
-  uint32_t getSize() { return BTFTypeBase::getSize() + BTF::BTFArraySize; }
-  void completeType(BTFDebug &BDebug);
-  void emitType(MCStreamer &OS);
-};
-
-/// Handle struct/union type.
-class BTFTypeStruct : public BTFTypeBase {
-  const DICompositeType *STy;
-  std::vector<struct BTF::BTFMember> Members;
-
-public:
-  BTFTypeStruct(const DICompositeType *STy, bool IsStruct, uint32_t NumMembers);
-  uint32_t getSize() {
-    return BTFTypeBase::getSize() + Members.size() * BTF::BTFMemberSize;
-  }
-  void completeType(BTFDebug &BDebug);
-  void emitType(MCStreamer &OS);
-};
-
-/// Handle function pointer.
-class BTFTypeFuncProto : public BTFTypeBase {
-  const DISubroutineType *STy;
-  std::unordered_map<uint32_t, StringRef> FuncArgNames;
-  std::vector<struct BTF::BTFParam> Parameters;
-
-public:
-  BTFTypeFuncProto(const DISubroutineType *STy, uint32_t NumParams,
-                   const std::unordered_map<uint32_t, StringRef> &FuncArgNames);
-  uint32_t getSize() {
-    return BTFTypeBase::getSize() + Parameters.size() * BTF::BTFParamSize;
-  }
-  void completeType(BTFDebug &BDebug);
-  void emitType(MCStreamer &OS);
-};
-
-/// Handle subprogram
-class BTFTypeFunc : public BTFTypeBase {
-  StringRef Name;
-
-public:
-  BTFTypeFunc(StringRef FuncName, uint32_t ProtoTypeId);
-  uint32_t getSize() { return BTFTypeBase::getSize(); }
-  void completeType(BTFDebug &BDebug);
-  void emitType(MCStreamer &OS);
-};
-
-/// String table.
-class BTFStringTable {
-  /// String table size in bytes.
-  uint32_t Size;
-  /// A mapping from string table offset to the index
-  /// of the Table. It is used to avoid putting
-  /// duplicated strings in the table.
-  std::unordered_map<uint32_t, uint32_t> OffsetToIdMap;
-  /// A vector of strings to represent the string table.
-  std::vector<std::string> Table;
-
-public:
-  BTFStringTable() : Size(0) {}
-  uint32_t getSize() { return Size; }
-  std::vector<std::string> &getTable() { return Table; }
-  /// Add a string to the string table and returns its offset
-  /// in the table.
-  uint32_t addString(StringRef S);
-};
-
-/// Represent one func and its type id.
-struct BTFFuncInfo {
-  const MCSymbol *Label; ///< Func MCSymbol
-  uint32_t TypeId;       ///< Type id referring to .BTF type section
-};
-
-/// Represent one line info.
-struct BTFLineInfo {
-  MCSymbol *Label;      ///< MCSymbol identifying insn for the lineinfo
-  uint32_t FileNameOff; ///< file name offset in the .BTF string table
-  uint32_t LineOff;     ///< line offset in the .BTF string table
-  uint32_t LineNum;     ///< the line number
-  uint32_t ColumnNum;   ///< the column number
-};
-
-/// Collect and emit BTF information.
-class BTFDebug : public DebugHandlerBase {
-  MCStreamer &OS;
-  bool SkipInstruction;
-  bool LineInfoGenerated;
-  uint32_t SecNameOff;
-  uint32_t ArrayIndexTypeId;
-  BTFStringTable StringTable;
-  std::vector<std::unique_ptr<BTFTypeBase>> TypeEntries;
-  std::unordered_map<const DIType *, uint32_t> DIToIdMap;
-  std::unordered_map<const DIType *, uint32_t> BitFieldTypeMap;
-  std::unordered_map<uint32_t, std::vector<BTFFuncInfo>> FuncInfoTable;
-  std::unordered_map<uint32_t, std::vector<BTFLineInfo>> LineInfoTable;
-  StringMap<std::vector<std::string>> FileContent;
-
-  /// Add types to TypeEntries.
-  /// @{
-  /// Add types to TypeEntries and DIToIdMap.
-  void addType(std::unique_ptr<BTFTypeBase> TypeEntry, const DIType *Ty);
-  /// Add types to TypeEntries only and return type id.
-  uint32_t addType(std::unique_ptr<BTFTypeBase> TypeEntry);
-  /// @}
-
-  /// IR type visiting functions.
-  /// @{
-  void visitTypeEntry(const DIType *Ty);
-  void visitBasicType(const DIBasicType *BTy);
-  void visitSubroutineType(
-      const DISubroutineType *STy, bool ForSubprog,
-      const std::unordered_map<uint32_t, StringRef> &FuncArgNames,
-      uint32_t &TypeId);
-  void visitFwdDeclType(const DICompositeType *CTy);
-  void visitCompositeType(const DICompositeType *CTy);
-  void visitStructType(const DICompositeType *STy, bool IsStruct);
-  void visitArrayType(const DICompositeType *ATy);
-  void visitEnumType(const DICompositeType *ETy);
-  void visitDerivedType(const DIDerivedType *DTy);
-  /// @}
-
-  /// Get the file content for the subprogram. Certain lines of the file
-  /// later may be put into string table and referenced by line info.
-  std::string populateFileContent(const DISubprogram *SP);
-
-  /// Construct a line info.
-  void constructLineInfo(const DISubprogram *SP, MCSymbol *Label, uint32_t Line,
-                         uint32_t Column);
-
-  /// Emit common header of .BTF and .BTF.ext sections.
-  void emitCommonHeader();
-
-  /// Emit the .BTF section.
-  void emitBTFSection();
-
-  /// Emit the .BTF.ext section.
-  void emitBTFExtSection();
-
-protected:
-  /// Gather pre-function debug information.
-  void beginFunctionImpl(const MachineFunction *MF) override;
-
-  /// Post process after all instructions in this function are processed.
-  void endFunctionImpl(const MachineFunction *MF) override;
-
-public:
-  BTFDebug(AsmPrinter *AP);
-
-  /// Get the special array index type id.
-  uint32_t getArrayIndexTypeId() {
-    assert(ArrayIndexTypeId);
-    return ArrayIndexTypeId;
-  }
-
-  /// Add string to the string table.
-  size_t addString(StringRef S) { return StringTable.addString(S); }
-
-  /// Get the type id for a particular DIType.
-  uint32_t getTypeId(const DIType *Ty) {
-    assert(Ty && "Invalid null Type");
-    assert(DIToIdMap.find(Ty) != DIToIdMap.end() &&
-           "DIType not added in the BDIToIdMap");
-    return DIToIdMap[Ty];
-  }
-
-  /// Get the bitfield type id. If the struct/union member
-  /// is a bitfield, a special type is created for it.
-  uint32_t getBitFieldTypeId(const DIDerivedType *Ty) {
-    assert(Ty && "Invalid null Type");
-    assert(BitFieldTypeMap.find(Ty) != BitFieldTypeMap.end() &&
-           "DIDerivedType not added in the BitFieldTypeMap");
-    return BitFieldTypeMap[Ty];
-  }
-
-  void setSymbolSize(const MCSymbol *Symbol, uint64_t Size) override {}
-
-  /// Process beginning of an instruction.
-  void beginInstruction(const MachineInstr *MI) override;
-
-  /// Complete all the types and emit the BTF sections.
-  void endModule() override;
-};
-
-} // end namespace llvm
-
-#endif // LLVM_LIB_CODEGEN_ASMPRINTER_BTFDEBUG_H