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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
commit | 6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch) | |
tree | 657d8194422a5daccecfd42d654b8a245ef7b4c8 /src/include/jit/jit.h | |
parent | Initial commit. (diff) | |
download | postgresql-13-6eb9c5a5657d1fe77b55cc261450f3538d35a94d.tar.xz postgresql-13-6eb9c5a5657d1fe77b55cc261450f3538d35a94d.zip |
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/include/jit/jit.h')
-rw-r--r-- | src/include/jit/jit.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/include/jit/jit.h b/src/include/jit/jit.h new file mode 100644 index 0000000..5a77f7d --- /dev/null +++ b/src/include/jit/jit.h @@ -0,0 +1,105 @@ +/*------------------------------------------------------------------------- + * jit.h + * Provider independent JIT infrastructure. + * + * Copyright (c) 2016-2020, PostgreSQL Global Development Group + * + * src/include/jit/jit.h + * + *------------------------------------------------------------------------- + */ +#ifndef JIT_H +#define JIT_H + +#include "executor/instrument.h" +#include "utils/resowner.h" + + +/* Flags determining what kind of JIT operations to perform */ +#define PGJIT_NONE 0 +#define PGJIT_PERFORM (1 << 0) +#define PGJIT_OPT3 (1 << 1) +#define PGJIT_INLINE (1 << 2) +#define PGJIT_EXPR (1 << 3) +#define PGJIT_DEFORM (1 << 4) + + +typedef struct JitInstrumentation +{ + /* number of emitted functions */ + size_t created_functions; + + /* accumulated time to generate code */ + instr_time generation_counter; + + /* accumulated time for inlining */ + instr_time inlining_counter; + + /* accumulated time for optimization */ + instr_time optimization_counter; + + /* accumulated time for code emission */ + instr_time emission_counter; +} JitInstrumentation; + +/* + * DSM structure for accumulating jit instrumentation of all workers. + */ +typedef struct SharedJitInstrumentation +{ + int num_workers; + JitInstrumentation jit_instr[FLEXIBLE_ARRAY_MEMBER]; +} SharedJitInstrumentation; + +typedef struct JitContext +{ + /* see PGJIT_* above */ + int flags; + + ResourceOwner resowner; + + JitInstrumentation instr; +} JitContext; + +typedef struct JitProviderCallbacks JitProviderCallbacks; + +extern void _PG_jit_provider_init(JitProviderCallbacks *cb); +typedef void (*JitProviderInit) (JitProviderCallbacks *cb); +typedef void (*JitProviderResetAfterErrorCB) (void); +typedef void (*JitProviderReleaseContextCB) (JitContext *context); +struct ExprState; +typedef bool (*JitProviderCompileExprCB) (struct ExprState *state); + +struct JitProviderCallbacks +{ + JitProviderResetAfterErrorCB reset_after_error; + JitProviderReleaseContextCB release_context; + JitProviderCompileExprCB compile_expr; +}; + + +/* GUCs */ +extern bool jit_enabled; +extern char *jit_provider; +extern bool jit_debugging_support; +extern bool jit_dump_bitcode; +extern bool jit_expressions; +extern bool jit_profiling_support; +extern bool jit_tuple_deforming; +extern double jit_above_cost; +extern double jit_inline_above_cost; +extern double jit_optimize_above_cost; + + +extern void jit_reset_after_error(void); +extern void jit_release_context(JitContext *context); + +/* + * Functions for attempting to JIT code. Callers must accept that these might + * not be able to perform JIT (i.e. return false). + */ +extern bool jit_compile_expr(struct ExprState *state); +extern void InstrJitAgg(JitInstrumentation *dst, JitInstrumentation *add); + + +#endif /* JIT_H */ |