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This new IR facility allows us to represent the object-file semantic of a COMDAT group. COMDATs allow us to tie together sections and make the inclusion of one dependent on another. This is required to implement features like MS ABI VFTables and optimizing away certain kinds of initialization in C++. This functionality is only representable in COFF and ELF, Mach-O has no similar mechanism. Differential Revision: http://reviews.llvm.org/D4178 llvm-svn: 211920
26 lines
815 B
C++
26 lines
815 B
C++
//===-- Comdat.cpp - Implement Metadata classes --------------------------===//
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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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// This file implements the Comdat class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/Comdat.h"
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#include "llvm/ADT/StringMap.h"
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using namespace llvm;
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Comdat::Comdat(SelectionKind SK, StringMapEntry<Comdat> *Name)
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: Name(Name), SK(SK) {}
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Comdat::Comdat(Comdat &&C) : Name(C.Name), SK(C.SK) {}
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Comdat::Comdat() : Name(nullptr), SK(Comdat::Any) {}
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StringRef Comdat::getName() const { return Name->first(); }
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