38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
//===-- 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
|