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	discussion of this change. Boy are my fingers tired. ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			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 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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| 
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| #ifndef LLVM_EXECUTION_ENGINE_JIT_H
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| #define LLVM_EXECUTION_ENGINE_JIT_H
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| 
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| #include "llvm/ExecutionEngine/ExecutionEngine.h"
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| #include <cstdlib>
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| 
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| namespace llvm {
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|   extern void LinkInJIT();
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| }
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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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| 
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|       llvm::LinkInJIT();
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|     }
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|   } ForceJITLinking;
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| }
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| 
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| #endif
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