Commit 07995e94 authored by Damien George's avatar Damien George
Browse files

Merge pull request #649 from pfalcon/multi-opt

Support multiple bytecode optimisation levels
parents 509c7a78 411732e9
......@@ -352,6 +352,10 @@ STATIC void emit_bc_adjust_stack_size(emit_t *emit, int delta) {
STATIC void emit_bc_set_source_line(emit_t *emit, int source_line) {
//printf("source: line %d -> %d offset %d -> %d\n", emit->last_source_line, source_line, emit->last_source_line_offset, emit->bytecode_offset);
#if MICROPY_ENABLE_SOURCE_LINE
if (mp_optimise_value >= 3) {
// If we compile with -O3, don't store line numbers.
return;
}
if (source_line > emit->last_source_line) {
uint bytes_to_skip = emit->bytecode_offset - emit->last_source_line_offset;
uint lines_to_skip = source_line - emit->last_source_line;
......
......@@ -64,12 +64,7 @@ struct _mp_lexer_t {
mp_token_t tok_cur;
};
// debug flag for __debug__ constant
STATIC mp_token_kind_t mp_debug_value;
void mp_set_debug(bool value) {
mp_debug_value = value ? MP_TOKEN_KW_TRUE : MP_TOKEN_KW_FALSE;
}
uint mp_optimise_value;
// TODO replace with a call to a standard function
bool str_strn_equal(const char *str, const char *strn, int len) {
......@@ -703,7 +698,7 @@ STATIC void mp_lexer_next_token_into(mp_lexer_t *lex, mp_token_t *tok, bool firs
if (str_strn_equal(tok_kw[i], tok->str, tok->len)) {
if (i == ARRAY_SIZE(tok_kw) - 1) {
// tok_kw[ARRAY_SIZE(tok_kw) - 1] == "__debug__"
tok->kind = mp_debug_value;
tok->kind = (mp_optimise_value == 0 ? MP_TOKEN_KW_TRUE : MP_TOKEN_KW_FALSE);
} else {
tok->kind = MP_TOKEN_KW_FALSE + i;
}
......
......@@ -176,3 +176,5 @@ typedef enum {
mp_import_stat_t mp_import_stat(const char *path);
mp_lexer_t *mp_lexer_new_from_file(const char *filename);
extern uint mp_optimise_value;
......@@ -45,6 +45,7 @@
#include "bc.h"
#include "smallint.h"
#include "objgenerator.h"
#include "lexer.h"
#if 0 // print debugging info
#define DEBUG_PRINT (1)
......@@ -74,8 +75,8 @@ void mp_init(void) {
MICROPY_PORT_INIT_FUNC;
#endif
// __debug__ enabled by default
mp_set_debug(true);
// optimization disabled by default
mp_optimise_value = 0;
// init global module stuff
mp_module_init();
......
......@@ -54,8 +54,6 @@ typedef struct _mp_arg_t {
void mp_init(void);
void mp_deinit(void);
void mp_set_debug(bool value); // sets the value of __debug__; see lexer.c
void mp_arg_check_num(uint n_args, uint n_kw, uint n_args_min, uint n_args_max, bool takes_kw);
void mp_arg_parse_all(uint n_pos, const mp_obj_t *pos, mp_map_t *kws, uint n_allowed, const mp_arg_t *allowed, mp_arg_val_t *out_vals);
void mp_arg_parse_all_kw_array(uint n_pos, uint n_kw, const mp_obj_t *args, uint n_allowed, const mp_arg_t *allowed, mp_arg_val_t *out_vals);
......
......@@ -1042,12 +1042,16 @@ exception_handler:
machine_uint_t code_info_size = code_info[0] | (code_info[1] << 8) | (code_info[2] << 16) | (code_info[3] << 24);
qstr source_file = code_info[4] | (code_info[5] << 8) | (code_info[6] << 16) | (code_info[7] << 24);
qstr block_name = code_info[8] | (code_info[9] << 8) | (code_info[10] << 16) | (code_info[11] << 24);
machine_uint_t source_line = 1;
machine_uint_t source_line = 0;
machine_uint_t bc = code_state->ip - code_info - code_info_size;
//printf("find %lu %d %d\n", bc, code_info[12], code_info[13]);
for (const byte* ci = code_info + 12; *ci && bc >= ((*ci) & 31); ci++) {
bc -= *ci & 31;
source_line += *ci >> 5;
const byte* ci = code_info + 12;
if (*ci) {
source_line = 1;
for (; *ci && bc >= ((*ci) & 31); ci++) {
bc -= *ci & 31;
source_line += *ci >> 5;
}
}
mp_obj_exception_add_traceback(nlr.ret_val, source_file, source_line, block_name);
}
......
......@@ -30,6 +30,7 @@
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
......@@ -188,6 +189,7 @@ int usage(char **argv) {
"usage: %s [<opts>] [-X <implopt>] [-c <command>] [<filename>]\n"
"Options:\n"
"-v : verbose (trace various operations); can be multiple\n"
"-O[N] : apply bytecode optimizations of level N\n"
"\n"
"Implementation specific options:\n", argv[0]
);
......@@ -346,9 +348,13 @@ int main(int argc, char **argv) {
a += 1;
} else if (strcmp(argv[a], "-v") == 0) {
mp_verbose_flag++;
} else if (strcmp(argv[a], "-O") == 0) {
// optimisation; sets __debug__ to False
mp_set_debug(false);
} else if (strncmp(argv[a], "-O", 2) == 0) {
if (isdigit(argv[a][2])) {
mp_optimise_value = argv[a][2] & 0xf;
} else {
mp_optimise_value = 0;
for (char *p = argv[a] + 1; *p && *p == 'O'; p++, mp_optimise_value++);
}
} else {
return usage(argv);
}
......
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