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- #pragma once
- #ifdef __GNUC__
- #pragma GCC diagnostic push
- #pragma GCC diagnostic ignored "-Wunused-parameter"
- #endif
- //===-- MCJIT.h - MC-Based Just-In-Time Execution Engine --------*- C++ -*-===//
- //
- // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
- // See https://llvm.org/LICENSE.txt for license information.
- // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
- //
- //===----------------------------------------------------------------------===//
- //
- // This file forces the MCJIT to link in on certain operating systems.
- // (Windows).
- //
- //===----------------------------------------------------------------------===//
- #ifndef LLVM_EXECUTIONENGINE_MCJIT_H
- #define LLVM_EXECUTIONENGINE_MCJIT_H
- #include "llvm/ExecutionEngine/ExecutionEngine.h"
- #include <cstdlib>
- extern "C" void LLVMLinkInMCJIT();
- namespace {
- struct ForceMCJITLinking {
- ForceMCJITLinking() {
- // We must reference MCJIT in such a way that compilers will not
- // delete it all as dead code, even with whole program optimization,
- // yet is effectively a NO-OP. As the compiler isn't smart enough
- // to know that getenv() never returns -1, this will do the job.
- if (std::getenv("bar") != (char*) -1)
- return;
- LLVMLinkInMCJIT();
- }
- } ForceMCJITLinking;
- }
- #endif
- #ifdef __GNUC__
- #pragma GCC diagnostic pop
- #endif
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