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52 lines
1.8 KiB
52 lines
1.8 KiB
4 months ago
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//===----- LinkAllIR.h - Reference All VMCore Code --------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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_LINKALLIR_H
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#define LLVM_LINKALLIR_H
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#include "llvm/BinaryFormat/Dwarf.h"
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#include "llvm/IR/InlineAsm.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Verifier.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/Memory.h"
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#include "llvm/Support/Mutex.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Process.h"
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#include "llvm/Support/Program.h"
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#include "llvm/Support/Signals.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::LLVMContext Context;
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(void)new llvm::Module("", Context);
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(void)new llvm::UnreachableInst(Context);
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(void) llvm::createVerifierPass();
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}
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} ForceVMCoreLinking;
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}
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#endif
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