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/*
* A small header than can be included by backported LLVM code or PostgreSQL
* code, to control conditional compilation.
*/
#ifndef LLVMJIT_BACKPORT_H
#define LLVMJIT_BACKPORT_H
#include <llvm/Config/llvm-config.h>
/*
* LLVM's RuntimeDyld can produce code that crashes on larger memory ARM
* systems, because llvm::SectionMemoryManager allocates multiple pieces of
* memory that can be placed too far apart for the generated code. See
* src/backend/jit/llvm/SectionMemoryManager.cpp for the patched replacement
* class llvm::backport::SectionMemoryManager that we use as a workaround.
* This header controls whether we use it.
*
* We have adjusted it to compile against a range of LLVM versions, but not
* further back than 12 for now.
*/
#if defined(__aarch64__) && LLVM_VERSION_MAJOR > 11
#define USE_LLVM_BACKPORT_SECTION_MEMORY_MANAGER
#endif
#endif
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