Provide gmlt-like inline scope information in the skeleton CU to facilitate symbolica...

[oota-llvm.git] / lib / CodeGen / AsmPrinter / DwarfAccelTable.h

diff --git a/lib/CodeGen/AsmPrinter/DwarfAccelTable.h b/lib/CodeGen/AsmPrinter/DwarfAccelTable.h
index 7627313d28f1fcaff674d1c2c7f58f89e7bda600..ff809f2598266a65f2d644d7b56b99242a983088 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfAccelTable.h
+++ b/lib/CodeGen/AsmPrinter/DwarfAccelTable.h
@@ -11,20 +11,20 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef CODEGEN_ASMPRINTER_DWARFACCELTABLE_H__
-#define CODEGEN_ASMPRINTER_DWARFACCELTABLE_H__
+#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFACCELTABLE_H
+#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFACCELTABLE_H
 
 #include "DIE.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/Dwarf.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/FormattedStream.h"
-#include <map>
 #include <vector>
 
 // The dwarf accelerator tables are an indirect hash table optimized
@@ -62,8 +62,7 @@
 namespace llvm {
 
 class AsmPrinter;
-class DIE;
-class DwarfUnits;
+class DwarfFile;
 
 class DwarfAccelTable {
 
@@ -127,7 +126,8 @@ public:
     uint16_t type; // enum AtomType
     uint16_t form; // DWARF DW_FORM_ defines
 
-    Atom(uint16_t type, uint16_t form) : type(type), form(form) {}
+    LLVM_CONSTEXPR Atom(uint16_t type, uint16_t form)
+        : type(type), form(form) {}
 #ifndef NDEBUG
     void print(raw_ostream &O) {
       O << "Type: " << dwarf::AtomTypeString(type) << "\n"
@@ -140,7 +140,7 @@ public:
 private:
   struct TableHeaderData {
     uint32_t die_offset_base;
-    SmallVector<Atom, 1> Atoms;
+    SmallVector<Atom, 3> Atoms;
 
     TableHeaderData(ArrayRef<Atom> AtomList, uint32_t offset = 0)
         : die_offset_base(offset), Atoms(AtomList.begin(), AtomList.end()) {}
@@ -165,10 +165,10 @@ private:
   // HashData[hash_data_count]
 public:
   struct HashDataContents {
-    DIE *Die;   // Offsets
+    const DIE *Die;   // Offsets
     char Flags; // Specific flags to output
 
-    HashDataContents(DIE *D, char Flags) : Die(D), Flags(Flags) {}
+    HashDataContents(const DIE *D, char Flags) : Die(D), Flags(Flags) {}
 #ifndef NDEBUG
     void print(raw_ostream &O) const {
       O << "  Offset: " << Die->getOffset() << "\n";
@@ -179,12 +179,19 @@ public:
   };
 
 private:
+  // String Data
+  struct DataArray {
+    MCSymbol *StrSym;
+    std::vector<HashDataContents *> Values;
+    DataArray() : StrSym(nullptr) {}
+  };
+  friend struct HashData;
   struct HashData {
     StringRef Str;
     uint32_t HashValue;
     MCSymbol *Sym;
-    ArrayRef<HashDataContents *> Data; // offsets
-    HashData(StringRef S, ArrayRef<HashDataContents *> Data)
+    DwarfAccelTable::DataArray &Data; // offsets
+    HashData(StringRef S, DwarfAccelTable::DataArray &Data)
         : Str(S), Data(Data) {
       HashValue = DwarfAccelTable::HashDJB(S);
     }
@@ -198,10 +205,10 @@ private:
       else
         O << "<none>";
       O << "\n";
-      for (size_t i = 0; i < Data.size(); i++) {
-        O << "  Offset: " << Data[i]->Die->getOffset() << "\n";
-        O << "  Tag: " << dwarf::TagString(Data[i]->Die->getTag()) << "\n";
-        O << "  Flags: " << Data[i]->Flags << "\n";
+      for (HashDataContents *C : Data.Values) {
+        O << "  Offset: " << C->Die->getOffset() << "\n";
+        O << "  Tag: " << dwarf::TagString(C->Die->getTag()) << "\n";
+        O << "  Flags: " << C->Flags << "\n";
       }
     }
     void dump() { print(dbgs()); }
@@ -216,7 +223,7 @@ private:
   void EmitBuckets(AsmPrinter *);
   void EmitHashes(AsmPrinter *);
   void EmitOffsets(AsmPrinter *, MCSymbol *);
-  void EmitData(AsmPrinter *, DwarfUnits *D);
+  void EmitData(AsmPrinter *, DwarfFile *D, MCSymbol *StrSym);
 
   // Allocator for HashData and HashDataContents.
   BumpPtrAllocator Allocator;
@@ -226,8 +233,6 @@ private:
   TableHeaderData HeaderData;
   std::vector<HashData *> Data;
 
-  // String Data
-  typedef std::vector<HashDataContents *> DataArray;
   typedef StringMap<DataArray, BumpPtrAllocator &> StringEntries;
   StringEntries Entries;
 
@@ -240,10 +245,10 @@ private:
   // Public Implementation
 public:
   DwarfAccelTable(ArrayRef<DwarfAccelTable::Atom>);
-  ~DwarfAccelTable();
-  void AddName(StringRef, DIE *, char = 0);
+  void AddName(StringRef Name, MCSymbol *StrSym, const DIE *Die,
+               char Flags = 0);
   void FinalizeTable(AsmPrinter *, StringRef);
-  void Emit(AsmPrinter *, MCSymbol *, DwarfUnits *);
+  void Emit(AsmPrinter *, MCSymbol *, DwarfFile *, MCSymbol *StrSym);
 #ifndef NDEBUG
   void print(raw_ostream &O);
   void dump() { print(dbgs()); }