LCOV - code coverage report
Current view: top level - include/llvm/IR - Comdat.h (source / functions) Hit Total Coverage
Test: llvm-toolchain.info Lines: 2 2 100.0 %
Date: 2017-09-14 15:23:50 Functions: 1 1 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : //===- llvm/IR/Comdat.h - Comdat definitions --------------------*- 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             : /// @file
      11             : /// This file contains the declaration of the Comdat class, which represents a
      12             : /// single COMDAT in LLVM.
      13             : //
      14             : //===----------------------------------------------------------------------===//
      15             : 
      16             : #ifndef LLVM_IR_COMDAT_H
      17             : #define LLVM_IR_COMDAT_H
      18             : 
      19             : namespace llvm {
      20             : 
      21             : class raw_ostream;
      22             : class StringRef;
      23             : template <typename ValueTy> class StringMapEntry;
      24             : 
      25             : // This is a Name X SelectionKind pair. The reason for having this be an
      26             : // independent object instead of just adding the name and the SelectionKind
      27             : // to a GlobalObject is that it is invalid to have two Comdats with the same
      28             : // name but different SelectionKind. This structure makes that unrepresentable.
      29       35701 : class Comdat {
      30             : public:
      31             :   enum SelectionKind {
      32             :     Any,          ///< The linker may choose any COMDAT.
      33             :     ExactMatch,   ///< The data referenced by the COMDAT must be the same.
      34             :     Largest,      ///< The linker will choose the largest COMDAT.
      35             :     NoDuplicates, ///< No other Module may specify this COMDAT.
      36             :     SameSize,     ///< The data referenced by the COMDAT must be the same size.
      37             :   };
      38             : 
      39             :   Comdat(const Comdat &) = delete;
      40             :   Comdat(Comdat &&C);
      41             : 
      42             :   SelectionKind getSelectionKind() const { return SK; }
      43        1656 :   void setSelectionKind(SelectionKind Val) { SK = Val; }
      44             :   StringRef getName() const;
      45             :   void print(raw_ostream &OS, bool IsForDebug = false) const;
      46             :   void dump() const;
      47             : 
      48             : private:
      49             :   friend class Module;
      50             : 
      51             :   Comdat();
      52             : 
      53             :   // Points to the map in Module.
      54             :   StringMapEntry<Comdat> *Name = nullptr;
      55             :   SelectionKind SK = Any;
      56             : };
      57             : 
      58             : inline raw_ostream &operator<<(raw_ostream &OS, const Comdat &C) {
      59             :   C.print(OS);
      60             :   return OS;
      61             : }
      62             : 
      63             : } // end namespace llvm
      64             : 
      65             : #endif // LLVM_IR_COMDAT_H

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