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aa5b9c0f6f
be deleted. This will be reapplied as soon as possible and before the 3.6 branch date at any rate. Approved by Jim Grosbach, Lang Hames, Rafael Espindola. This reverts commits r215111, 215115, 215116, 215117, 215136. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215154 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.1 KiB
C++
39 lines
1.1 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 is distributed under the University of Illinois Open Source
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// 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 LLVM_EXECUTIONENGINE_JIT_H
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#define LLVM_EXECUTIONENGINE_JIT_H
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#include "llvm/ExecutionEngine/ExecutionEngine.h"
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#include <cstdlib>
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extern "C" void LLVMLinkInJIT();
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namespace {
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struct ForceJITLinking {
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ForceJITLinking() {
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// We must reference JIT 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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LLVMLinkInJIT();
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}
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} ForceJITLinking;
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}
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#endif
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