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Viewing changes to libclamav/c++/llvm/include/llvm/CodeGen/LinkAllAsmWriterComponents.h

  • Committer: Bazaar Package Importer
  • Author(s): Leonel Nunez
  • Date: 2008-02-11 22:52:13 UTC
  • mfrom: (1.1.6 upstream)
  • mto: This revision was merged to the branch mainline in revision 38.
  • Revision ID: james.westby@ubuntu.com-20080211225213-p2uwj4czso1w2f8h
Tags: upstream-0.92~dfsg
Import upstream version 0.92~dfsg

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libclamav/c++/llvm/include/llvm/CodeGen/LinkAllAsmWriterComponents.h
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//===- llvm/Codegen/LinkAllAsmWriterComponents.h ----------------*- 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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// This header file pulls in all assembler writer related passes for tools like
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// llc that need this functionality.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H
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#define LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H
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#include "llvm/CodeGen/GCs.h"
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#include <cstdlib>
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namespace {
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  struct ForceAsmWriterLinking {
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    ForceAsmWriterLinking() {
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      // We must reference the plug-ins in such a way that compilers will not
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      // delete it all as dead code, even with whole program optimization,
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      // yet is effectively a NO-OP. As the compiler isn't smart enough
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      // to know that getenv() never returns -1, this will do the job.
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      if (std::getenv("bar") != (char*) -1)
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        return;
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      llvm::linkOcamlGCPrinter();
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    }
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  } ForceAsmWriterLinking; // Force link by creating a global definition.
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}
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#endif // LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H