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250bca7fc1
This currently requires patches to the LLVM codebase to be effective (submitted upstream), the GUCs are available without those patches however. Author: Andres Freund Discussion: https://postgr.es/m/20170901064131.tazjxwus3k2w3ybh@alap3.anarazel.de
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*-------------------------------------------------------------------------
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* jit.h
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* Provider independent JIT infrastructure.
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*
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* Copyright (c) 2016-2018, PostgreSQL Global Development Group
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*
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* src/include/jit/jit.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef JIT_H
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#define JIT_H
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#include "executor/instrument.h"
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#include "utils/resowner.h"
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/* Flags deterimining what kind of JIT operations to perform */
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#define PGJIT_NONE 0
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#define PGJIT_PERFORM 1 << 0
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#define PGJIT_OPT3 1 << 1
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typedef struct JitContext
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{
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/* see PGJIT_* above */
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int flags;
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ResourceOwner resowner;
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/* number of emitted functions */
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size_t created_functions;
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/* accumulated time to generate code */
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instr_time generation_counter;
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/* accumulated time for optimization */
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instr_time optimization_counter;
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/* accumulated time for code emission */
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instr_time emission_counter;
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} JitContext;
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typedef struct JitProviderCallbacks JitProviderCallbacks;
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extern void _PG_jit_provider_init(JitProviderCallbacks *cb);
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typedef void (*JitProviderInit) (JitProviderCallbacks *cb);
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typedef void (*JitProviderResetAfterErrorCB) (void);
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typedef void (*JitProviderReleaseContextCB) (JitContext *context);
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struct JitProviderCallbacks
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{
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JitProviderResetAfterErrorCB reset_after_error;
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JitProviderReleaseContextCB release_context;
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};
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/* GUCs */
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extern bool jit_enabled;
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extern char *jit_provider;
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extern bool jit_debugging_support;
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extern bool jit_dump_bitcode;
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extern bool jit_profiling_support;
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extern void jit_reset_after_error(void);
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extern void jit_release_context(JitContext *context);
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#endif /* JIT_H */
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