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| author | Andy Wingo <wingo@pobox.com> | 2018-07-23 12:43:30 +0200 |
|---|---|---|
| committer | Andy Wingo <wingo@pobox.com> | 2018-07-29 15:47:03 +0200 |
| commit | 87da1c8d20591a9a7dad28eb106161c4f508a2b6 (patch) | |
| tree | c54081b0e20bb8706a523cb02739841242f88b69 /libguile/jit.h | |
| parent | 4b7af0b7fd22183a2c1ba6d48f338ce03e6faf59 (diff) | |
| download | guile-87da1c8d20591a9a7dad28eb106161c4f508a2b6.tar.gz | |
Add instrument-call, instrument-loop VM instructions
* libguile/jit.h (struct scm_jit_function_data)
(enum scm_jit_counter_value): New data types.
* libguile/jit.c (scm_jit_compute_mcode, scm_jit_enter_mcode): New
function stubs. Adapt label/offset compilers to take pointers.
* libguile/vm-engine.c (instrument-call, instrument-loop): New
instructions.
* libguile/vm.c: Add jit.h include.
* module/system/vm/assembler.scm (emit-instrument-call)
(emit-instrument-loop): New exports.
Diffstat (limited to 'libguile/jit.h')
| -rw-r--r-- | libguile/jit.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libguile/jit.h b/libguile/jit.h index 1c27e8628..5067b61f6 100644 --- a/libguile/jit.h +++ b/libguile/jit.h @@ -26,6 +26,35 @@ +struct scm_jit_function_data; + +#ifdef BUILDING_LIBGUILE +struct scm_jit_function_data +{ + uint8_t *mcode; + uint32_t counter; + uint32_t start; + uint32_t end; +#if SCM_SIZEOF_UINTPTR_T == 4 +#elif SCM_SIZEOF_UINTPTR_T == 8 + uint32_t pad; +#else +#error unhandled sizeof(uintptr_t) +#endif +}; + +enum scm_jit_counter_value +{ + SCM_JIT_COUNTER_CALL_INCREMENT = 15, + SCM_JIT_COUNTER_LOOP_INCREMENT = 1, + SCM_JIT_COUNTER_THRESHOLD = 50 +}; +#endif + +SCM_INTERNAL const uint8_t *scm_jit_compute_mcode (scm_thread *thread, + struct scm_jit_function_data *data); +SCM_INTERNAL void scm_jit_enter_mcode (scm_thread *thread, const uint8_t *mcode); + SCM_INTERNAL void scm_init_jit (void); #endif /* SCM_JIT_H */ |