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41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
//===-- JIT.h - Abstract Execution Engine Interface -------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Jeff Cohen and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file forces the JIT 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 EXECUTION_ENGINE_JIT_H
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#define EXECUTION_ENGINE_JIT_H
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#include "llvm/ExecutionEngine/ExecutionEngine.h"
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#include <cstdlib>
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namespace llvm {
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extern void LinkInJIT();
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}
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namespace {
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struct ForceJITLinking {
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ForceJITLinking() {
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// We must reference the passes 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::LinkInJIT();
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}
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} ForceJITLinking;
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}
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#endif
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