mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 11:50:28 +02:00
076c3ad8d7
* libguile/vm-engine.c (instrument-entry, instrument-loop): Make the counter check >=, so that we can set the threshold to 0 and still get compilation. * libguile/jit.h (enum scm_jit_counter_value): Make the increments event.
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
#ifndef SCM_JIT_H
|
||
#define SCM_JIT_H
|
||
|
||
/* Copyright 2018
|
||
Free Software Foundation, Inc.
|
||
|
||
This file is part of Guile.
|
||
|
||
Guile is free software: you can redistribute it and/or modify it
|
||
under the terms of the GNU Lesser General Public License as published
|
||
by the Free Software Foundation, either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
Guile is distributed in the hope that it will be useful, but WITHOUT
|
||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
||
License for more details.
|
||
|
||
You should have received a copy of the GNU Lesser General Public
|
||
License along with Guile. If not, see
|
||
<https://www.gnu.org/licenses/>. */
|
||
|
||
|
||
|
||
#include "libguile/scm.h"
|
||
|
||
|
||
|
||
struct scm_jit_function_data;
|
||
struct scm_jit_state;
|
||
|
||
#ifdef BUILDING_LIBGUILE
|
||
struct scm_jit_function_data
|
||
{
|
||
uint8_t *mcode;
|
||
uint32_t counter;
|
||
int32_t start;
|
||
int32_t end;
|
||
#if SCM_SIZEOF_UINTPTR_T == 4
|
||
#elif SCM_SIZEOF_UINTPTR_T == 8
|
||
uint32_t pad;
|
||
#else
|
||
#error unhandled sizeof(uintptr_t)
|
||
#endif
|
||
};
|
||
|
||
/* These values should be even, so that a function's counter is never
|
||
0xffffffff, so that setting the JIT threshold to 0xffffffff always
|
||
disables compilation. */
|
||
enum scm_jit_counter_value
|
||
{
|
||
SCM_JIT_COUNTER_ENTRY_INCREMENT = 30,
|
||
SCM_JIT_COUNTER_LOOP_INCREMENT = 2,
|
||
};
|
||
#endif
|
||
|
||
SCM_INTERNAL uint32_t scm_jit_counter_threshold;
|
||
|
||
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_jit_state_free (struct scm_jit_state *j);
|
||
|
||
SCM_INTERNAL void scm_init_jit (void);
|
||
|
||
#endif /* SCM_JIT_H */
|