1 //===- ExecutionEngine.h - Abstract Execution Engine Interface --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by Jeff Cohen and is distributed under the
6 // University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file forces the JIT to link in on certain operating systems.
13 //===----------------------------------------------------------------------===//
15 #ifndef EXECUTION_ENGINE_JIT_H
16 #define EXECUTION_ENGINE_JIT_H
18 #include "llvm/ExecutionEngine/ExecutionEngine.h"
22 extern void LinkInJIT();
26 struct ForceJITLinking {
28 // We must reference the passes in such a way that compilers will not
29 // delete it all as dead code, even with whole program optimization,
30 // yet is effectively a NO-OP. As the compiler isn't smart enough
31 // to know that getenv() never returns -1, this will do the job.
32 if (std::getenv("bar") != (char*) -1)