38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
//===- 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
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