1193323Sed//===- llvm/Codegen/LinkAllAsmWriterComponents.h ----------------*- C++ -*-===// 2193323Sed// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6193323Sed// 7193323Sed//===----------------------------------------------------------------------===// 8193323Sed// 9193323Sed// This header file pulls in all assembler writer related passes for tools like 10193323Sed// llc that need this functionality. 11193323Sed// 12193323Sed//===----------------------------------------------------------------------===// 13193323Sed 14193323Sed#ifndef LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H 15193323Sed#define LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H 16193323Sed 17344779Sdim#include "llvm/CodeGen/BuiltinGCs.h" 18199481Srdivacky#include <cstdlib> 19193323Sed 20193323Sednamespace { 21193323Sed struct ForceAsmWriterLinking { 22193323Sed ForceAsmWriterLinking() { 23193323Sed // We must reference the plug-ins in such a way that compilers will not 24193323Sed // delete it all as dead code, even with whole program optimization, 25193323Sed // yet is effectively a NO-OP. As the compiler isn't smart enough 26193323Sed // to know that getenv() never returns -1, this will do the job. 27193323Sed if (std::getenv("bar") != (char*) -1) 28193323Sed return; 29193323Sed 30193323Sed llvm::linkOcamlGCPrinter(); 31249423Sdim llvm::linkErlangGCPrinter(); 32193323Sed 33193323Sed } 34193323Sed } ForceAsmWriterLinking; // Force link by creating a global definition. 35193323Sed} 36193323Sed 37193323Sed#endif // LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H 38