1e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao//===- llvm/Codegen/LinkAllAsmWriterComponents.h ----------------*- C++ -*-===// 2e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// 3e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// The LLVM Compiler Infrastructure 4e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// 5e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// This file is distributed under the University of Illinois Open Source 6e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// License. See LICENSE.TXT for details. 7e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// 8e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao//===----------------------------------------------------------------------===// 9e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// 10e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// This header file pulls in all assembler writer related passes for tools like 11e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// llc that need this functionality. 12e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao// 13e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao//===----------------------------------------------------------------------===// 14e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao 15e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao#ifndef LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H 16e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao#define LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H 17e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao 18e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao#include "llvm/CodeGen/GCs.h" 19e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao#include <cstdlib> 20e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao 21e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liaonamespace { 22e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao struct ForceAsmWriterLinking { 23e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao ForceAsmWriterLinking() { 24e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao // We must reference the plug-ins in such a way that compilers will not 25e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao // delete it all as dead code, even with whole program optimization, 26e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao // yet is effectively a NO-OP. As the compiler isn't smart enough 27e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao // to know that getenv() never returns -1, this will do the job. 28e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao if (std::getenv("bar") != (char*) -1) 29e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao return; 30e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao 31e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao llvm::linkOcamlGCPrinter(); 32477de3a7859104d7c41a36628169e13e524e980aYiannis Tsiouris llvm::linkErlangGCPrinter(); 33e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao 34e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao } 35e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao } ForceAsmWriterLinking; // Force link by creating a global definition. 36e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao} 37e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao 38e264f62ca09a8f65c87a46d562a4d0f9ec5d457Shih-wei Liao#endif // LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H 39