1249259Sdim//===----- LinkAllIR.h - Reference All VMCore Code --------------*- C++ -*-===// 2249259Sdim// 3249259Sdim// The LLVM Compiler Infrastructure 4249259Sdim// 5249259Sdim// This file is distributed under the University of Illinois Open Source 6249259Sdim// License. See LICENSE.TXT for details. 7249259Sdim// 8249259Sdim//===----------------------------------------------------------------------===// 9249259Sdim// 10249259Sdim// This header file pulls in all the object modules of the VMCore library so 11249259Sdim// that tools like llc, opt, and lli can ensure they are linked with all symbols 12249259Sdim// from libVMCore.a It should only be used from a tool's main program. 13249259Sdim// 14249259Sdim//===----------------------------------------------------------------------===// 15249259Sdim 16249259Sdim#ifndef LLVM_LINKALLIR_H 17249259Sdim#define LLVM_LINKALLIR_H 18249259Sdim 19249259Sdim#include "llvm/Analysis/Verifier.h" 20249259Sdim#include "llvm/IR/InlineAsm.h" 21249259Sdim#include "llvm/IR/Instructions.h" 22249259Sdim#include "llvm/IR/IntrinsicInst.h" 23249259Sdim#include "llvm/IR/LLVMContext.h" 24249259Sdim#include "llvm/IR/Module.h" 25249259Sdim#include "llvm/Support/Dwarf.h" 26249259Sdim#include "llvm/Support/DynamicLibrary.h" 27249259Sdim#include "llvm/Support/MathExtras.h" 28249259Sdim#include "llvm/Support/Memory.h" 29249259Sdim#include "llvm/Support/Mutex.h" 30249259Sdim#include "llvm/Support/Path.h" 31249259Sdim#include "llvm/Support/Process.h" 32249259Sdim#include "llvm/Support/Program.h" 33249259Sdim#include "llvm/Support/Signals.h" 34249259Sdim#include "llvm/Support/TimeValue.h" 35249259Sdim#include <cstdlib> 36249259Sdim 37249259Sdimnamespace { 38249259Sdim struct ForceVMCoreLinking { 39249259Sdim ForceVMCoreLinking() { 40249259Sdim // We must reference VMCore in such a way that compilers will not 41249259Sdim // delete it all as dead code, even with whole program optimization, 42249259Sdim // yet is effectively a NO-OP. As the compiler isn't smart enough 43249259Sdim // to know that getenv() never returns -1, this will do the job. 44249259Sdim if (std::getenv("bar") != (char*) -1) 45249259Sdim return; 46249259Sdim (void)new llvm::Module("", llvm::getGlobalContext()); 47249259Sdim (void)new llvm::UnreachableInst(llvm::getGlobalContext()); 48249259Sdim (void) llvm::createVerifierPass(); 49249259Sdim } 50249259Sdim } ForceVMCoreLinking; 51249259Sdim} 52249259Sdim 53249259Sdim#endif 54