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7896c9f436
Patch by Howard Hinnant! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
//===- LinkAllVMCore.h - Reference All VMCore Code --------------*- 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 the object modules of the VMCore library so
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// that tools like llc, opt, and lli can ensure they are linked with all symbols
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// from libVMCore.a It should only be used from a tool's main program.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LINKALLVMCORE_H
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#define LLVM_LINKALLVMCORE_H
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#include "llvm/LLVMContext.h"
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#include "llvm/Module.h"
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#include "llvm/Instructions.h"
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#include "llvm/IntrinsicInst.h"
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#include "llvm/InlineAsm.h"
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#include "llvm/Analysis/Verifier.h"
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#include "llvm/System/Alarm.h"
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#include "llvm/System/DynamicLibrary.h"
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#include "llvm/System/Memory.h"
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#include "llvm/System/Mutex.h"
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#include "llvm/System/Path.h"
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#include "llvm/System/Process.h"
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#include "llvm/System/Program.h"
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#include "llvm/System/Signals.h"
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#include "llvm/System/TimeValue.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/Support/Mangler.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/SlowOperationInformer.h"
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#include <cstdlib>
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namespace {
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struct ForceVMCoreLinking {
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ForceVMCoreLinking() {
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// We must reference VMCore 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::Module* M = new llvm::Module("", llvm::getGlobalContext());
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(void)new llvm::UnreachableInst(llvm::getGlobalContext());
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(void) llvm::createVerifierPass();
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(void) new llvm::Mangler(*M,"");
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}
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} ForceVMCoreLinking;
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}
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#endif
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