LCOV - code coverage report
Current view: top level - include/llvm/CodeGen - DwarfStringPoolEntry.h (source / functions) Hit Total Coverage
Test: llvm-toolchain.info Lines: 4 6 66.7 %
Date: 2018-10-14 09:39:32 Functions: 0 1 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : //===- llvm/CodeGen/DwarfStringPoolEntry.h - String pool entry --*- C++ -*-===//
       2             : //
       3             : //                     The LLVM Compiler Infrastructure
       4             : //
       5             : // This file is distributed under the University of Illinois Open Source
       6             : // License. See LICENSE.TXT for details.
       7             : //
       8             : //===----------------------------------------------------------------------===//
       9             : 
      10             : #ifndef LLVM_CODEGEN_DWARFSTRINGPOOLENTRY_H
      11             : #define LLVM_CODEGEN_DWARFSTRINGPOOLENTRY_H
      12             : 
      13             : #include "llvm/ADT/PointerIntPair.h"
      14             : #include "llvm/ADT/StringMap.h"
      15             : 
      16             : namespace llvm {
      17             : 
      18             : class MCSymbol;
      19             : 
      20             : /// Data for a string pool entry.
      21             : struct DwarfStringPoolEntry {
      22             :   static constexpr unsigned NotIndexed = -1;
      23             : 
      24             :   MCSymbol *Symbol;
      25             :   unsigned Offset;
      26             :   unsigned Index;
      27             : 
      28           0 :   bool isIndexed() const { return Index != NotIndexed; }
      29             : };
      30             : 
      31             : /// String pool entry reference.
      32             : class DwarfStringPoolEntryRef {
      33             :   PointerIntPair<const StringMapEntry<DwarfStringPoolEntry> *, 1, bool>
      34             :       MapEntryAndIndexed;
      35             : 
      36             :   const StringMapEntry<DwarfStringPoolEntry> *getMapEntry() const {
      37      313744 :     return MapEntryAndIndexed.getPointer();
      38             :   }
      39             : 
      40             : public:
      41             :   DwarfStringPoolEntryRef() = default;
      42             :   DwarfStringPoolEntryRef(const StringMapEntry<DwarfStringPoolEntry> &Entry,
      43             :                           bool Indexed)
      44             :       : MapEntryAndIndexed(&Entry, Indexed) {}
      45             : 
      46             :   explicit operator bool() const { return getMapEntry(); }
      47             :   MCSymbol *getSymbol() const {
      48             :     assert(getMapEntry()->second.Symbol && "No symbol available!");
      49      296609 :     return getMapEntry()->second.Symbol;
      50             :   }
      51        6990 :   unsigned getOffset() const { return getMapEntry()->second.Offset; }
      52             :   bool isIndexed() const { return MapEntryAndIndexed.getInt(); }
      53             :   unsigned getIndex() const {
      54             :     assert(isIndexed());
      55             :     assert(getMapEntry()->getValue().isIndexed());
      56        2417 :     return getMapEntry()->second.Index;
      57             :   }
      58             :   StringRef getString() const { return getMapEntry()->first(); }
      59             :   /// Return the entire string pool entry for convenience.
      60           0 :   DwarfStringPoolEntry getEntry() const { return getMapEntry()->getValue(); }
      61             : 
      62             :   bool operator==(const DwarfStringPoolEntryRef &X) const {
      63             :     return getMapEntry() == X.getMapEntry();
      64             :   }
      65             :   bool operator!=(const DwarfStringPoolEntryRef &X) const {
      66             :     return getMapEntry() != X.getMapEntry();
      67             :   }
      68             : };
      69             : 
      70             : } // end namespace llvm
      71             : 
      72             : #endif

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