LinkAllAsmWriterComponents.h

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//===- llvm/Codegen/LinkAllAsmWriterComponents.h ----------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This header file pulls in all assembler writer related passes for tools like
// llc that need this functionality.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H
#define LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H
 
#include "llvm/IR/BuiltinGCs.h"
#include "llvm/Support/AlwaysTrue.h"
 
namespace {
  struct ForceAsmWriterLinking {
    ForceAsmWriterLinking() {
      // We must reference the plug-ins in such a way that compilers will not
      // delete it all as dead code, even with whole program optimization,
      // yet is effectively a NO-OP. This is so that globals in the translation
      // units where these functions are defined are forced to be initialized,
      // populating various registries.
      if (llvm::getNonFoldableAlwaysTrue())
        return;
 
      llvm::linkOcamlGCPrinter();
      llvm::linkErlangGCPrinter();
 
    }
  } ForceAsmWriterLinking; // Force link by creating a global definition.
}
 
#endif // LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H