40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
//===-- MCJIT.h - MC-Based Just-In-Time Execution Engine --------*- 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 file forces the MCJIT to link in on certain operating systems.
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// (Windows).
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_EXECUTIONENGINE_MCJIT_H
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#define LLVM_EXECUTIONENGINE_MCJIT_H
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#include "llvm/ExecutionEngine/ExecutionEngine.h"
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#include "llvm/Support/AlwaysTrue.h"
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#include "llvm/Support/Compiler.h"
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extern "C" LLVM_ABI void LLVMLinkInMCJIT();
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namespace {
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struct ForceMCJITLinking {
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ForceMCJITLinking() {
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// We must reference MCJIT in such a way that compilers will not
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// delete it all as dead code, even with whole program optimization, yet
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// is effectively a NO-OP. This is so that globals in the translation
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// units where these functions are defined are forced to be initialized,
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// populating various registries.
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if (llvm::getNonFoldableAlwaysTrue())
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return;
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LLVMLinkInMCJIT();
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}
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} ForceMCJITLinking;
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}
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#endif
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