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f2b75b8802
When llvm declarations have argument names, it's helpful to actually print those names when debugging. Arguably, it'd be nice to print them all the time, but that would mean the IR we output wouldn't round trip through bitcode, which doesn't store the names. Make the varous print() methods in AsmWriter optionally print "for debug" and set that flag in the dump() methods. The only thing this does differently for now is print the argument names in declarations. llvm-svn: 248692
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
//===-- llvm/IR/Comdat.h - Comdat definitions -------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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/// @file
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/// This file contains the declaration of the Comdat class, which represents a
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/// single COMDAT in LLVM.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IR_COMDAT_H
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#define LLVM_IR_COMDAT_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Compiler.h"
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namespace llvm {
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class raw_ostream;
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template <typename ValueTy> class StringMapEntry;
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// This is a Name X SelectionKind pair. The reason for having this be an
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// independent object instead of just adding the name and the SelectionKind
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// to a GlobalObject is that it is invalid to have two Comdats with the same
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// name but different SelectionKind. This structure makes that unrepresentable.
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class Comdat {
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public:
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enum SelectionKind {
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Any, ///< The linker may choose any COMDAT.
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ExactMatch, ///< The data referenced by the COMDAT must be the same.
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Largest, ///< The linker will choose the largest COMDAT.
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NoDuplicates, ///< No other Module may specify this COMDAT.
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SameSize, ///< The data referenced by the COMDAT must be the same size.
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};
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Comdat(Comdat &&C);
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SelectionKind getSelectionKind() const { return SK; }
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void setSelectionKind(SelectionKind Val) { SK = Val; }
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StringRef getName() const;
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void print(raw_ostream &OS, bool IsForDebug = false) const;
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void dump() const;
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private:
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friend class Module;
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Comdat();
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Comdat(SelectionKind SK, StringMapEntry<Comdat> *Name);
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Comdat(const Comdat &) = delete;
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// Points to the map in Module.
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StringMapEntry<Comdat> *Name;
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SelectionKind SK;
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};
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inline raw_ostream &operator<<(raw_ostream &OS, const Comdat &C) {
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C.print(OS);
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return OS;
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}
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} // end llvm namespace
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#endif
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