140 lines
4.2 KiB
C
140 lines
4.2 KiB
C
/*-------------------------------------------------------------------------
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* llvmjit.h
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* LLVM JIT provider.
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*
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* Copyright (c) 2016-2020, PostgreSQL Global Development Group
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*
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* src/include/jit/llvmjit.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef LLVMJIT_H
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#define LLVMJIT_H
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/*
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* To avoid breaking cpluspluscheck, allow including the file even when LLVM
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* is not available.
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*/
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#ifdef USE_LLVM
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#include <llvm-c/Types.h>
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/*
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* File needs to be includable by both C and C++ code, and include other
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* headers doing the same. Therefore wrap C portion in our own extern "C" if
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* in C++ mode.
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*/
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include "access/tupdesc.h"
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#include "fmgr.h"
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#include "jit/jit.h"
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#include "nodes/pg_list.h"
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typedef struct LLVMJitContext
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{
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JitContext base;
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/* number of modules created */
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size_t module_generation;
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/* current, "open for write", module */
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LLVMModuleRef module;
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/* is there any pending code that needs to be emitted */
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bool compiled;
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/* # of objects emitted, used to generate non-conflicting names */
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int counter;
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/* list of handles for code emitted via Orc */
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List *handles;
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} LLVMJitContext;
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/* llvm module containing information about types */
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extern LLVMModuleRef llvm_types_module;
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/* type and struct definitions */
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extern LLVMTypeRef TypeParamBool;
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extern LLVMTypeRef TypePGFunction;
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extern LLVMTypeRef TypeSizeT;
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extern LLVMTypeRef TypeStorageBool;
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extern LLVMTypeRef StructNullableDatum;
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extern LLVMTypeRef StructTupleDescData;
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extern LLVMTypeRef StructHeapTupleData;
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extern LLVMTypeRef StructTupleTableSlot;
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extern LLVMTypeRef StructHeapTupleTableSlot;
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extern LLVMTypeRef StructMinimalTupleTableSlot;
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extern LLVMTypeRef StructMemoryContextData;
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extern LLVMTypeRef StructFunctionCallInfoData;
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extern LLVMTypeRef StructExprContext;
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extern LLVMTypeRef StructExprEvalStep;
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extern LLVMTypeRef StructExprState;
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extern LLVMTypeRef StructAggState;
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extern LLVMTypeRef StructAggStatePerTransData;
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extern LLVMTypeRef StructAggStatePerGroupData;
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extern LLVMValueRef AttributeTemplate;
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extern void llvm_enter_fatal_on_oom(void);
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extern void llvm_leave_fatal_on_oom(void);
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extern void llvm_reset_after_error(void);
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extern void llvm_assert_in_fatal_section(void);
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extern LLVMJitContext *llvm_create_context(int jitFlags);
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extern LLVMModuleRef llvm_mutable_module(LLVMJitContext *context);
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extern char *llvm_expand_funcname(LLVMJitContext *context, const char *basename);
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extern void *llvm_get_function(LLVMJitContext *context, const char *funcname);
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extern void llvm_split_symbol_name(const char *name, char **modname, char **funcname);
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extern LLVMValueRef llvm_pg_func(LLVMModuleRef mod, const char *funcname);
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extern void llvm_copy_attributes(LLVMValueRef from, LLVMValueRef to);
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extern LLVMValueRef llvm_function_reference(LLVMJitContext *context,
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LLVMBuilderRef builder,
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LLVMModuleRef mod,
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FunctionCallInfo fcinfo);
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extern void llvm_inline(LLVMModuleRef mod);
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/*
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****************************************************************************
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* Code generation functions.
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****************************************************************************
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*/
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extern bool llvm_compile_expr(struct ExprState *state);
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struct TupleTableSlotOps;
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extern LLVMValueRef slot_compile_deform(struct LLVMJitContext *context, TupleDesc desc,
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const struct TupleTableSlotOps *ops, int natts);
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/*
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****************************************************************************
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* Extensions / Backward compatibility section of the LLVM C API
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* Error handling related functions.
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****************************************************************************
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*/
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#if defined(HAVE_DECL_LLVMGETHOSTCPUNAME) && !HAVE_DECL_LLVMGETHOSTCPUNAME
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/** Get the host CPU as a string. The result needs to be disposed with
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LLVMDisposeMessage. */
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extern char *LLVMGetHostCPUName(void);
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#endif
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#if defined(HAVE_DECL_LLVMGETHOSTCPUFEATURES) && !HAVE_DECL_LLVMGETHOSTCPUFEATURES
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/** Get the host CPU features as a string. The result needs to be disposed
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with LLVMDisposeMessage. */
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extern char *LLVMGetHostCPUFeatures(void);
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#endif
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extern unsigned LLVMGetAttributeCountAtIndexPG(LLVMValueRef F, uint32 Idx);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* USE_LLVM */
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#endif /* LLVMJIT_H */
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