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ruby--ruby/iseq.h
nobu c5a5563dbe repack structs 
Repack rb_thread_struct, rb_execution_context_struct, args_info and
iseq_compile_data to save 1 word per struct.

re_pattern_buffer remains unpacked due to the possible binary
compatibility.

[Fix GH-1907]

Based on the patch

From: Lourens Naudé <lourens@bearmetal.eu>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-07-29 01:32:37 +00:00

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/**********************************************************************
iseq.h -
$Author$
created at: 04/01/01 23:36:57 JST
Copyright (C) 2004-2008 Koichi Sasada
**********************************************************************/
#ifndef RUBY_ISEQ_H
#define RUBY_ISEQ_H 1
#include "ruby/version.h"
#define ISEQ_MAJOR_VERSION RUBY_API_VERSION_MAJOR
#define ISEQ_MINOR_VERSION RUBY_API_VERSION_MINOR
#ifndef rb_iseq_t
typedef struct rb_iseq_struct rb_iseq_t;
#define rb_iseq_t rb_iseq_t
#endif
static inline size_t
rb_call_info_kw_arg_bytes(int keyword_len)
{
return sizeof(struct rb_call_info_kw_arg) + sizeof(VALUE) * (keyword_len - 1);
}
#define ISEQ_COVERAGE(iseq) iseq->body->variable.coverage
#define ISEQ_COVERAGE_SET(iseq, cov) RB_OBJ_WRITE(iseq, &iseq->body->variable.coverage, cov)
#define ISEQ_LINE_COVERAGE(iseq) RARRAY_AREF(ISEQ_COVERAGE(iseq), COVERAGE_INDEX_LINES)
#define ISEQ_BRANCH_COVERAGE(iseq) RARRAY_AREF(ISEQ_COVERAGE(iseq), COVERAGE_INDEX_BRANCHES)
#define ISEQ_FLIP_CNT(iseq) (iseq)->body->variable.flip_count
static inline rb_snum_t
ISEQ_FLIP_CNT_INCREMENT(const rb_iseq_t *iseq)
{
rb_snum_t cnt = iseq->body->variable.flip_count;
iseq->body->variable.flip_count += 1;
return cnt;
}
static inline VALUE *
ISEQ_ORIGINAL_ISEQ(const rb_iseq_t *iseq)
{
return iseq->body->variable.original_iseq;
}
static inline void
ISEQ_ORIGINAL_ISEQ_CLEAR(const rb_iseq_t *iseq)
{
void *ptr = iseq->body->variable.original_iseq;
iseq->body->variable.original_iseq = NULL;
if (ptr) {
ruby_xfree(ptr);
}
}
static inline VALUE *
ISEQ_ORIGINAL_ISEQ_ALLOC(const rb_iseq_t *iseq, long size)
{
return iseq->body->variable.original_iseq =
ruby_xmalloc2(size, sizeof(VALUE));
}
#define ISEQ_TRACE_EVENTS (RUBY_EVENT_LINE | \
RUBY_EVENT_CLASS | \
RUBY_EVENT_END | \
RUBY_EVENT_CALL | \
RUBY_EVENT_RETURN| \
RUBY_EVENT_B_CALL| \
RUBY_EVENT_B_RETURN)
#define ISEQ_NOT_LOADED_YET IMEMO_FL_USER1
#define ISEQ_USE_COMPILE_DATA IMEMO_FL_USER2
#define ISEQ_TRANSLATED IMEMO_FL_USER3
#define ISEQ_MARKABLE_ISEQ IMEMO_FL_USER4
struct iseq_compile_data {
/* GC is needed */
const VALUE err_info;
VALUE mark_ary;
const VALUE catch_table_ary; /* Array */
/* GC is not needed */
struct iseq_label_data *start_label;
struct iseq_label_data *end_label;
struct iseq_label_data *redo_label;
const rb_iseq_t *current_block;
VALUE ensure_node;
VALUE for_iseq;
struct iseq_compile_data_ensure_node_stack *ensure_node_stack;
struct iseq_compile_data_storage *storage_head;
struct iseq_compile_data_storage *storage_current;
int loopval_popped; /* used by NODE_BREAK */
int last_line;
int label_no;
int node_level;
unsigned int ci_index;
unsigned int ci_kw_index;
const rb_compile_option_t *option;
struct rb_id_table *ivar_cache_table;
#if SUPPORT_JOKE
st_table *labels_table;
#endif
};
static inline struct iseq_compile_data *
ISEQ_COMPILE_DATA(const rb_iseq_t *iseq)
{
if (iseq->flags & ISEQ_USE_COMPILE_DATA) {
return iseq->aux.compile_data;
}
else {
return NULL;
}
}
static inline void
ISEQ_COMPILE_DATA_ALLOC(rb_iseq_t *iseq)
{
iseq->flags |= ISEQ_USE_COMPILE_DATA;
iseq->aux.compile_data = ZALLOC(struct iseq_compile_data);
}
static inline void
ISEQ_COMPILE_DATA_CLEAR(rb_iseq_t *iseq)
{
iseq->flags &= ~ISEQ_USE_COMPILE_DATA;
iseq->aux.compile_data = NULL;
}
static inline rb_iseq_t *
iseq_imemo_alloc(void)
{
return (rb_iseq_t *)rb_imemo_new(imemo_iseq, 0, 0, 0, 0);
}
VALUE iseq_ibf_dump(const rb_iseq_t *iseq, VALUE opt);
void ibf_load_iseq_complete(rb_iseq_t *iseq);
const rb_iseq_t *iseq_ibf_load(VALUE str);
VALUE iseq_ibf_load_extra_data(VALUE str);
#if VM_INSN_INFO_TABLE_IMPL == 2
unsigned int *rb_iseq_insns_info_decode_positions(const struct rb_iseq_constant_body *body);
#endif
RUBY_SYMBOL_EXPORT_BEGIN
/* compile.c */
VALUE rb_iseq_compile_node(rb_iseq_t *iseq, const NODE *node);
VALUE rb_iseq_compile_ifunc(rb_iseq_t *iseq, const struct vm_ifunc *ifunc);
int rb_iseq_translate_threaded_code(rb_iseq_t *iseq);
VALUE *rb_iseq_original_iseq(const rb_iseq_t *iseq);
void rb_iseq_build_from_ary(rb_iseq_t *iseq, VALUE misc,
VALUE locals, VALUE args,
VALUE exception, VALUE body);
/* iseq.c */
VALUE rb_iseq_load(VALUE data, VALUE parent, VALUE opt);
VALUE rb_iseq_parameters(const rb_iseq_t *iseq, int is_proc);
struct st_table *ruby_insn_make_insn_table(void);
unsigned int rb_iseq_line_no(const rb_iseq_t *iseq, size_t pos);
void rb_iseq_trace_set(const rb_iseq_t *iseq, rb_event_flag_t turnon_events);
void rb_iseq_trace_set_all(rb_event_flag_t turnon_events);
void rb_iseq_trace_on_all(void);
void rb_iseq_insns_info_encode_positions(const rb_iseq_t *iseq);
VALUE rb_iseqw_new(const rb_iseq_t *iseq);
const rb_iseq_t *rb_iseqw_to_iseq(VALUE iseqw);
VALUE rb_iseq_absolute_path(const rb_iseq_t *iseq); /* obsolete */
VALUE rb_iseq_label(const rb_iseq_t *iseq);
VALUE rb_iseq_base_label(const rb_iseq_t *iseq);
VALUE rb_iseq_first_lineno(const rb_iseq_t *iseq);
VALUE rb_iseq_method_name(const rb_iseq_t *iseq);
void rb_iseq_code_location(const rb_iseq_t *iseq, int *first_lineno, int *first_column, int *last_lineno, int *last_column);
/* proc.c */
const rb_iseq_t *rb_method_iseq(VALUE body);
const rb_iseq_t *rb_proc_get_iseq(VALUE proc, int *is_proc);
struct rb_compile_option_struct {
unsigned int inline_const_cache: 1;
unsigned int peephole_optimization: 1;
unsigned int tailcall_optimization: 1;
unsigned int specialized_instruction: 1;
unsigned int operands_unification: 1;
unsigned int instructions_unification: 1;
unsigned int stack_caching: 1;
unsigned int frozen_string_literal: 1;
unsigned int debug_frozen_string_literal: 1;
unsigned int coverage_enabled: 1;
int debug_level;
};
struct iseq_insn_info_entry {
int line_no;
rb_event_flag_t events;
};
struct iseq_catch_table_entry {
enum catch_type {
CATCH_TYPE_RESCUE = INT2FIX(1),
CATCH_TYPE_ENSURE = INT2FIX(2),
CATCH_TYPE_RETRY = INT2FIX(3),
CATCH_TYPE_BREAK = INT2FIX(4),
CATCH_TYPE_REDO = INT2FIX(5),
CATCH_TYPE_NEXT = INT2FIX(6)
} type;
/*
* iseq type:
* CATCH_TYPE_RESCUE, CATCH_TYPE_ENSURE:
* use iseq as continuation.
*
* CATCH_TYPE_BREAK (iter):
* use iseq as key.
*
* CATCH_TYPE_BREAK (while), CATCH_TYPE_RETRY,
* CATCH_TYPE_REDO, CATCH_TYPE_NEXT:
* NULL.
*/
const rb_iseq_t *iseq;
unsigned int start;
unsigned int end;
unsigned int cont;
unsigned int sp;
};
PACKED_STRUCT_UNALIGNED(struct iseq_catch_table {
unsigned int size;
struct iseq_catch_table_entry entries[FLEX_ARY_LEN];
});
static inline int
iseq_catch_table_bytes(int n)
{
enum {
catch_table_entry_size = sizeof(struct iseq_catch_table_entry),
catch_table_entries_max = (INT_MAX - offsetof(struct iseq_catch_table, entries)) / catch_table_entry_size
};
if (n > catch_table_entries_max) rb_fatal("too large iseq_catch_table - %d", n);
return (int)(offsetof(struct iseq_catch_table, entries) +
n * catch_table_entry_size);
}
#define INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE (512)
struct iseq_compile_data_storage {
struct iseq_compile_data_storage *next;
unsigned int pos;
unsigned int size;
char buff[FLEX_ARY_LEN];
};
/* defined? */
enum defined_type {
DEFINED_NOT_DEFINED,
DEFINED_NIL = 1,
DEFINED_IVAR,
DEFINED_LVAR,
DEFINED_GVAR,
DEFINED_CVAR,
DEFINED_CONST,
DEFINED_METHOD,
DEFINED_YIELD,
DEFINED_ZSUPER,
DEFINED_SELF,
DEFINED_TRUE,
DEFINED_FALSE,
DEFINED_ASGN,
DEFINED_EXPR,
DEFINED_IVAR2,
DEFINED_REF,
DEFINED_FUNC
};
VALUE rb_iseq_defined_string(enum defined_type type);
void rb_iseq_make_compile_option(struct rb_compile_option_struct *option, VALUE opt);
/* vm.c */
VALUE rb_iseq_local_variables(const rb_iseq_t *iseq);
RUBY_SYMBOL_EXPORT_END
#endif /* RUBY_ISEQ_H */
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