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ir/ir_load.c
Dmitry Stogov 3535fd2fc4 Fix compilation warnings and signed/unsigned mess
2022-11-08 23:09:35 +03:00

1064 lines
23 KiB
C
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/*
* IR - Lightweight JIT Compilation Framework
* (IR loader)
* Copyright (C) 2005-2022 Zend by Perforce.
* Authors: Dmitry Stogov <dmitry@php.net>
*
* This file is generated from "ir.g". Do not edit!
*
* To generate ir_load.c use llk <https://github.com/dstogov/llk>:
* php llk.php ir.g
*/
#include "ir.h"
#include "ir_private.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
const unsigned char *yy_buf;
const unsigned char *yy_end;
const unsigned char *yy_pos;
const unsigned char *yy_text;
uint32_t yy_line;
typedef struct _ir_parser_ctx {
ir_ctx *ctx;
uint32_t undef_count;
ir_strtab var_tab;
} ir_parser_ctx;
static ir_strtab type_tab;
static ir_strtab op_tab;
#define IR_IS_UNRESOLVED(ref) \
((ref) < (ir_ref)0xc0000000)
#define IR_ENCODE_UNRESOLVED_REF(ref, op) \
((ir_ref)0xc0000000 - ((ref) * sizeof(ir_ref) + (op)))
#define IR_DECODE_UNRESOLVED_REF(ref) \
((ir_ref)0xc0000000 - (ref))
static ir_ref ir_use_var(ir_parser_ctx *p, uint32_t n, const char *str, size_t len) {
ir_ref ref = ir_strtab_find(&p->var_tab, str, len);
if (!ref) {
p->undef_count++;
/* create a linked list of unresolved references with header in "var_tab" */
ref = IR_UNUSED; /* list terminator */
ir_strtab_lookup(&p->var_tab, str, len, IR_ENCODE_UNRESOLVED_REF(p->ctx->insns_count, n));
} else if (IR_IS_UNRESOLVED(ref)) {
/* keep the linked list of unresolved references with header in "var_tab" */
/* "ref" keeps the tail of the list */
ir_strtab_update(&p->var_tab, str, len, IR_ENCODE_UNRESOLVED_REF(p->ctx->insns_count, n));
}
return ref;
}
static void ir_define_var(ir_parser_ctx *p, const char *str, size_t len, ir_ref ref) {
ir_ref old_ref = ir_strtab_lookup(&p->var_tab, str, len, ref);
if (ref != old_ref) {
if (IR_IS_UNRESOLVED(old_ref)) {
p->undef_count--;
/* update the linked list of unresolved references */
do {
ir_ref *ptr = ((ir_ref*)(p->ctx->ir_base)) + IR_DECODE_UNRESOLVED_REF(old_ref);
old_ref = *ptr;
*ptr = ref;
} while (old_ref != IR_UNUSED);
ir_strtab_update(&p->var_tab, str, len, ref);
} else {
fprintf(stderr, "ERROR: Redefined variable `%*s` on line %d\n", (int)len, str, yy_line);
exit(2);
}
}
}
static void report_undefined_var(const char *str, uint32_t len, ir_ref val)
{
if (IR_IS_UNRESOLVED(val)) {
fprintf(stderr, "ERROR: Undefined variable `%*s`\n", (int)len, str);
}
}
void ir_check_indefined_vars(ir_parser_ctx *p)
{
ir_strtab_apply(&p->var_tab, report_undefined_var);
exit(2);
}
/* forward declarations */
static void yy_error(const char *msg);
static void yy_error_sym(const char *msg, int sym);
#define YYPOS cpos
#define YYEND cend
#define YY_EOF 0
#define YY__LBRACE 1
#define YY__SEMICOLON 2
#define YY__RBRACE 3
#define YY_FUNC 4
#define YY__LPAREN 5
#define YY__COMMA 6
#define YY__RPAREN 7
#define YY__COLON 8
#define YY__EQUAL 9
#define YY_FUNC_ADDR 10
#define YY__SLASH 11
#define YY_NULL 12
#define YY_ID 13
#define YY_DECNUMBER 14
#define YY_HEXNUMBER 15
#define YY_FLOATNUMBER 16
#define YY_CHARACTER 17
#define YY_STRING 18
#define YY_EOL 19
#define YY_WS 20
#define YY_ONE_LINE_COMMENT 21
#define YY_COMMENT 22
static const char * sym_name[] = {
"<EOF>",
"{",
";",
"}",
"func",
"(",
",",
")",
":",
"=",
"func_addr",
"/",
"null",
"<ID>",
"<DECNUMBER>",
"<HEXNUMBER>",
"<FLOATNUMBER>",
"<CHARACTER>",
"<STRING>",
"<EOL>",
"<WS>",
"<ONE_LINE_COMMENT>",
"<COMMENT>",
NULL
};
#define YY_IN_SET(sym, set, bitset) \
(bitset[sym>>3] & (1 << (sym & 0x7)))
static int skip_EOL(int sym);
static int skip_WS(int sym);
static int skip_ONE_LINE_COMMENT(int sym);
static int skip_COMMENT(int sym);
static int get_sym(void);
static int parse_ir(int sym);
static int parse_ir_func(int sym, ir_parser_ctx *p);
static int parse_ir_func_prototype(int sym, ir_parser_ctx *p);
static int parse_ir_insn(int sym, ir_parser_ctx *p);
static int parse_type(int sym, uint8_t *t);
static int parse_func(int sym, uint8_t *op);
static int parse_val(int sym, ir_parser_ctx *p, uint8_t op, uint32_t n, ir_ref *ref);
static int parse_const(int sym, uint8_t t, ir_val *val);
static int parse_ID(int sym, const char **str, size_t *len);
static int parse_DECNUMBER(int sym, uint32_t t, ir_val *val);
static int parse_HEXNUMBER(int sym, uint32_t t, ir_val *val);
static int parse_FLOATNUMBER(int sym, uint32_t t, ir_val *val);
static int parse_CHARACTER(int sym, ir_val *val);
static int parse_STRING(int sym, const char **str, size_t *len);
static int get_skip_sym(void) {
int ch;
int ret;
int accept = -1;
const unsigned char *accept_pos;
const unsigned char *cpos = yy_pos;
const unsigned char *cend = yy_end;
_yy_state_start:
yy_text = YYPOS;
ch = *YYPOS;
switch (ch) {
case 'f':
ch = *++YYPOS;
if (ch != 'u') goto _yy_tunnel_2;
ch = *++YYPOS;
if (ch != 'n') goto _yy_tunnel_2;
ch = *++YYPOS;
if (ch != 'c') goto _yy_tunnel_2;
ch = *++YYPOS;
if (ch != '_') {ret = YY_FUNC; goto _yy_tunnel_68;}
ch = *++YYPOS;
if (ch != 'a') goto _yy_tunnel_2;
ch = *++YYPOS;
if (ch != 'd') goto _yy_tunnel_2;
ch = *++YYPOS;
if (ch != 'd') goto _yy_tunnel_2;
ch = *++YYPOS;
if (ch != 'r') goto _yy_tunnel_2;
ret = YY_FUNC_ADDR;
goto _yy_state_68;
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
case 'G':
case 'H':
case 'I':
case 'J':
case 'K':
case 'L':
case 'M':
case 'N':
case 'O':
case 'P':
case 'Q':
case 'R':
case 'S':
case 'T':
case 'U':
case 'V':
case 'W':
case 'X':
case 'Y':
case 'Z':
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'g':
case 'h':
case 'i':
case 'j':
case 'k':
case 'l':
case 'm':
case 'o':
case 'p':
case 'q':
case 'r':
case 's':
case 't':
case 'u':
case 'v':
case 'w':
case 'x':
case 'y':
case 'z':
case '_':
goto _yy_state_2;
case 'n':
ch = *++YYPOS;
if (ch != 'u') goto _yy_tunnel_2;
ch = *++YYPOS;
if (ch != 'l') goto _yy_tunnel_2;
ch = *++YYPOS;
if (ch != 'l') goto _yy_tunnel_2;
ret = YY_NULL;
goto _yy_state_68;
case '(':
YYPOS++;
ret = YY__LPAREN;
goto _yy_fin;
case ',':
YYPOS++;
ret = YY__COMMA;
goto _yy_fin;
case ')':
YYPOS++;
ret = YY__RPAREN;
goto _yy_fin;
case ':':
YYPOS++;
ret = YY__COLON;
goto _yy_fin;
case '{':
YYPOS++;
ret = YY__LBRACE;
goto _yy_fin;
case '=':
YYPOS++;
ret = YY__EQUAL;
goto _yy_fin;
case '-':
ch = *++YYPOS;
if ((ch >= '0' && ch <= '9')) {
goto _yy_state_12;
} else if (ch == '.') {
goto _yy_state_13;
} else {
goto _yy_state_error;
}
case '0':
ch = *++YYPOS;
if (ch != 'x') goto _yy_tunnel_12;
ch = *++YYPOS;
if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'F') || (ch >= 'a' && ch <= 'f')) {
goto _yy_state_45;
} else {
goto _yy_state_error;
}
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
goto _yy_state_12;
case '.':
goto _yy_state_13;
case '\'':
goto _yy_state_14;
case '"':
goto _yy_state_15;
case '/':
ch = *++YYPOS;
accept = YY__SLASH;
accept_pos = yy_pos;
if (ch == '*') {
goto _yy_state_38;
} else if (ch == '/') {
goto _yy_state_22;
} else {
ret = YY__SLASH;
goto _yy_fin;
}
case ';':
YYPOS++;
ret = YY__SEMICOLON;
goto _yy_fin;
case '}':
YYPOS++;
ret = YY__RBRACE;
goto _yy_fin;
case '\r':
ch = *++YYPOS;
if (ch == '\n') {
yy_line++;
YYPOS++;
ret = YY_EOL;
goto _yy_fin;
} else {
ret = YY_EOL;
goto _yy_fin;
}
case '\n':
yy_line++;
YYPOS++;
ret = YY_EOL;
goto _yy_fin;
case ' ':
case '\t':
case '\f':
case '\v':
goto _yy_state_21;
case '#':
goto _yy_state_22;
case '\0':
if (ch == 0 && YYPOS < YYEND) goto _yy_state_error;
YYPOS++;
ret = YY_EOF;
goto _yy_fin;
default:
goto _yy_state_error;
}
_yy_state_2:
ch = *++YYPOS;
_yy_tunnel_2:
if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || ch == '_' || (ch >= 'a' && ch <= 'z')) {
goto _yy_state_2;
} else {
ret = YY_ID;
goto _yy_fin;
}
_yy_state_12:
ch = *++YYPOS;
_yy_tunnel_12:
accept = YY_DECNUMBER;
accept_pos = yy_pos;
if ((ch >= '0' && ch <= '9')) {
goto _yy_state_12;
} else if (ch == '.') {
goto _yy_state_28;
} else if (ch == 'E' || ch == 'e') {
goto _yy_state_29;
} else {
ret = YY_DECNUMBER;
goto _yy_fin;
}
_yy_state_13:
ch = *++YYPOS;
if ((ch >= '0' && ch <= '9')) {
goto _yy_state_28;
} else {
goto _yy_state_error;
}
_yy_state_14:
ch = *++YYPOS;
if (ch == '\\') {
ch = *++YYPOS;
if (YYPOS < YYEND) {
if (ch == '\n') {
yy_line++;
}
goto _yy_state_14;
} else {
goto _yy_state_error;
}
} else if (ch == '\'') {
YYPOS++;
ret = YY_CHARACTER;
goto _yy_fin;
} else if (YYPOS < YYEND && (ch <= '&' || (ch >= '(' && ch <= '[') || ch >= ']')) {
if (ch == '\n') {
yy_line++;
}
goto _yy_state_14;
} else {
goto _yy_state_error;
}
_yy_state_15:
ch = *++YYPOS;
if (ch == '\\') {
ch = *++YYPOS;
if (YYPOS < YYEND) {
if (ch == '\n') {
yy_line++;
}
goto _yy_state_15;
} else {
goto _yy_state_error;
}
} else if (ch == '"') {
YYPOS++;
ret = YY_STRING;
goto _yy_fin;
} else if (YYPOS < YYEND && (ch <= '!' || (ch >= '#' && ch <= '[') || ch >= ']')) {
if (ch == '\n') {
yy_line++;
}
goto _yy_state_15;
} else {
goto _yy_state_error;
}
_yy_state_21:
ch = *++YYPOS;
if (ch == '\t' || ch == '\v' || ch == '\f' || ch == ' ') {
goto _yy_state_21;
} else {
ret = YY_WS;
goto _yy_fin;
}
_yy_state_22:
ch = *++YYPOS;
if (ch == '\r') {
ch = *++YYPOS;
if (ch == '\n') {
yy_line++;
YYPOS++;
ret = YY_ONE_LINE_COMMENT;
goto _yy_fin;
} else {
ret = YY_ONE_LINE_COMMENT;
goto _yy_fin;
}
} else if (ch == '\n') {
yy_line++;
YYPOS++;
ret = YY_ONE_LINE_COMMENT;
goto _yy_fin;
} else if (YYPOS < YYEND && (ch <= '\t' || ch == '\v' || ch == '\f' || ch >= '\016')) {
goto _yy_state_22;
} else {
goto _yy_state_error;
}
_yy_state_28:
ch = *++YYPOS;
accept = YY_FLOATNUMBER;
accept_pos = yy_pos;
if (ch == 'E' || ch == 'e') {
goto _yy_state_29;
} else if ((ch >= '0' && ch <= '9')) {
goto _yy_state_28;
} else {
ret = YY_FLOATNUMBER;
goto _yy_fin;
}
_yy_state_29:
ch = *++YYPOS;
if (ch == '+' || ch == '-') {
ch = *++YYPOS;
if ((ch >= '0' && ch <= '9')) {
goto _yy_state_48;
} else {
goto _yy_state_error;
}
} else if ((ch >= '0' && ch <= '9')) {
goto _yy_state_48;
} else {
goto _yy_state_error;
}
_yy_state_38:
ch = *++YYPOS;
_yy_tunnel_38:
if (ch == '*') {
ch = *++YYPOS;
if (ch != '/') goto _yy_tunnel_38;
YYPOS++;
ret = YY_COMMENT;
goto _yy_fin;
} else if (YYPOS < YYEND && (ch <= ')' || ch >= '+')) {
if (ch == '\n') {
yy_line++;
}
goto _yy_state_38;
} else {
goto _yy_state_error;
}
_yy_state_45:
ch = *++YYPOS;
if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'F') || (ch >= 'a' && ch <= 'f')) {
goto _yy_state_45;
} else {
ret = YY_HEXNUMBER;
goto _yy_fin;
}
_yy_state_48:
ch = *++YYPOS;
if ((ch >= '0' && ch <= '9')) {
goto _yy_state_48;
} else {
ret = YY_FLOATNUMBER;
goto _yy_fin;
}
_yy_state_68:
ch = *++YYPOS;
_yy_tunnel_68:
if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || ch == '_' || (ch >= 'a' && ch <= 'z')) {
goto _yy_state_2;
} else {
goto _yy_fin;
}
_yy_state_error:
if (accept >= 0) {
yy_pos = accept_pos;
return accept;
}
if (YYPOS >= YYEND) {
yy_error("unexpected <EOF>");
} else if (YYPOS == yy_text) {
yy_error("unexpected character 'escape_char(ch)'");
} else {
yy_error("unexpected sequence 'escape_string(yy_text, 1 + YYPOS - yy_text))'");
}
YYPOS++;
goto _yy_state_start;
_yy_fin:
yy_pos = YYPOS;
return ret;
}
static int skip_EOL(int sym) {
if (sym != YY_EOL) {
yy_error_sym("<EOL> expected, got", sym);
}
sym = get_skip_sym();
return sym;
}
static int skip_WS(int sym) {
if (sym != YY_WS) {
yy_error_sym("<WS> expected, got", sym);
}
sym = get_skip_sym();
return sym;
}
static int skip_ONE_LINE_COMMENT(int sym) {
if (sym != YY_ONE_LINE_COMMENT) {
yy_error_sym("<ONE_LINE_COMMENT> expected, got", sym);
}
sym = get_skip_sym();
return sym;
}
static int skip_COMMENT(int sym) {
if (sym != YY_COMMENT) {
yy_error_sym("<COMMENT> expected, got", sym);
}
sym = get_skip_sym();
return sym;
}
static int get_sym(void) {
int sym;
sym = get_skip_sym();
while (sym == YY_EOL || sym == YY_WS || sym == YY_ONE_LINE_COMMENT || sym == YY_COMMENT) {
if (sym == YY_EOL) {
sym = skip_EOL(sym);
} else if (sym == YY_WS) {
sym = skip_WS(sym);
} else if (sym == YY_ONE_LINE_COMMENT) {
sym = skip_ONE_LINE_COMMENT(sym);
} else {
sym = skip_COMMENT(sym);
}
}
return sym;
}
static int parse_ir(int sym) {
ir_parser_ctx p;
do {
sym = parse_ir_func_prototype(sym, &p);
sym = parse_ir_func(sym, &p);
} while (sym == YY_FUNC);
return sym;
}
static int parse_ir_func(int sym, ir_parser_ctx *p) {
if (sym != YY__LBRACE) {
yy_error_sym("'{' expected, got", sym);
}
sym = get_sym();
while (sym == YY_ID) {
sym = parse_ir_insn(sym, p);
if (sym != YY__SEMICOLON) {
yy_error_sym("';' expected, got", sym);
}
sym = get_sym();
}
if (sym != YY__RBRACE) {
yy_error_sym("'}' expected, got", sym);
}
sym = get_sym();
return sym;
}
static int parse_ir_func_prototype(int sym, ir_parser_ctx *p) {
const char *name;
size_t len;
uint8_t t = 0;
if (sym != YY_FUNC) {
yy_error_sym("'func' expected, got", sym);
}
sym = get_sym();
sym = parse_ID(sym, &name, &len);
if (sym != YY__LPAREN) {
yy_error_sym("'(' expected, got", sym);
}
sym = get_sym();
if (sym == YY_ID) {
sym = parse_type(sym, &t);
while (sym == YY__COMMA) {
sym = get_sym();
sym = parse_type(sym, &t);
}
}
if (sym != YY__RPAREN) {
yy_error_sym("')' expected, got", sym);
}
sym = get_sym();
if (sym != YY__COLON) {
yy_error_sym("':' expected, got", sym);
}
sym = get_sym();
sym = parse_type(sym, &t);
return sym;
}
static int parse_ir_insn(int sym, ir_parser_ctx *p) {
int sym2;
const unsigned char *save_pos;
const unsigned char *save_text;
int save_line;
int alt0;
const char *str, *str2 = NULL, *func;
size_t len, len2 = 0, func_len;
uint8_t op;
uint8_t t = 0;
ir_ref op1 = IR_UNUSED;
ir_ref op2 = IR_UNUSED;
ir_ref op3 = IR_UNUSED;
ir_ref ref;
ir_val val;
ir_val count;
ir_val flags;
int32_t n;
save_pos = yy_pos;
save_text = yy_text;
save_line = yy_line;
alt0 = -2;
sym2 = sym;
if (sym2 == YY_ID) {
sym2 = get_sym();
goto _yy_state_0_1;
} else {
yy_error_sym("unexpected", sym2);
}
_yy_state_0_1:
if (sym2 == YY_ID) {
alt0 = 1;
goto _yy_state_0;
} else if (sym2 == YY__EQUAL) {
alt0 = 5;
goto _yy_state_0;
} else {
yy_error_sym("unexpected", sym2);
}
_yy_state_0:
yy_pos = save_pos;
yy_text = save_text;
yy_line = save_line;
if (alt0 == 1) {
sym = parse_type(sym, &t);
sym = parse_ID(sym, &str, &len);
if (sym == YY__COMMA) {
sym = get_sym();
sym = parse_ID(sym, &str2, &len2);
}
} else if (alt0 == 5) {
sym = parse_ID(sym, &str, &len);
} else {
yy_error_sym("unexpected", sym);
}
if (sym != YY__EQUAL) {
yy_error_sym("'=' expected, got", sym);
}
sym = get_sym();
switch (sym) {
case YY_DECNUMBER:
case YY_HEXNUMBER:
case YY_FLOATNUMBER:
case YY_CHARACTER:
val.u64 = 0;
sym = parse_const(sym, t, &val);
ref = ir_const(p->ctx, val, t);
break;
case YY_FUNC:
sym = get_sym();
if (sym != YY__LPAREN) {
yy_error_sym("'(' expected, got", sym);
}
sym = get_sym();
sym = parse_ID(sym, &func, &func_len);
flags.u64 = 0;
if (sym == YY__COMMA) {
sym = get_sym();
sym = parse_DECNUMBER(sym, IR_U16, &flags);
}
if (sym != YY__RPAREN) {
yy_error_sym("')' expected, got", sym);
}
sym = get_sym();
ref = ir_const_func(p->ctx, ir_strl(p->ctx, func, func_len), flags.u16);
break;
case YY_FUNC_ADDR:
sym = get_sym();
if (sym != YY__LPAREN) {
yy_error_sym("'(' expected, got", sym);
}
sym = get_sym();
if (sym == YY_DECNUMBER) {
sym = parse_DECNUMBER(sym, IR_ADDR, &val);
} else if (sym == YY_HEXNUMBER) {
sym = parse_HEXNUMBER(sym, IR_ADDR, &val);
} else {
yy_error_sym("unexpected", sym);
}
flags.u64 = 0;
if (sym == YY__COMMA) {
sym = get_sym();
sym = parse_DECNUMBER(sym, IR_U16, &flags);
}
if (sym != YY__RPAREN) {
yy_error_sym("')' expected, got", sym);
}
sym = get_sym();
ref = ir_const_func_addr(p->ctx, val.addr, flags.u16);
break;
case YY_STRING:
sym = parse_STRING(sym, &func, &func_len);
ref = ir_const_str(p->ctx, ir_strl(p->ctx, func, func_len));
break;
case YY_ID:
sym = parse_func(sym, &op);
if (sym == YY__SLASH) {
sym = get_sym();
sym = parse_DECNUMBER(sym, IR_I32, &count);
if (op == IR_PHI || op == IR_SNAPSHOT) count.i32++;
if (op == IR_CALL || op == IR_TAILCALL) count.i32+=2;
if (count.i32 < 0 || count.i32 > 255) yy_error("bad bumber of operands");
ref = ir_emit_N(p->ctx, IR_OPT(op, t), count.i32);
if (sym == YY__LPAREN) {
sym = get_sym();
if (sym == YY_ID || sym == YY_STRING || sym == YY_DECNUMBER || sym == YY_NULL) {
sym = parse_val(sym, p, op, 1, &op1);
n = 1;
if (n > count.i32) yy_error("too many operands");
ir_set_op(p->ctx, ref, n, op1);
while (sym == YY__COMMA) {
sym = get_sym();
sym = parse_val(sym, p, op, n, &op1);
n++;
if (n > count.i32) yy_error("too many operands");
ir_set_op(p->ctx, ref, n, op1);
}
}
if (sym != YY__RPAREN) {
yy_error_sym("')' expected, got", sym);
}
sym = get_sym();
}
} else if (sym == YY__LPAREN || sym == YY__SEMICOLON) {
if (sym == YY__LPAREN) {
sym = get_sym();
if (sym == YY_ID || sym == YY_STRING || sym == YY_DECNUMBER || sym == YY_NULL) {
sym = parse_val(sym, p, op, 1, &op1);
if (sym == YY__COMMA) {
sym = get_sym();
sym = parse_val(sym, p, op, 2, &op2);
if (sym == YY__COMMA) {
sym = get_sym();
sym = parse_val(sym, p, op, 3, &op3);
}
}
}
if (sym != YY__RPAREN) {
yy_error_sym("')' expected, got", sym);
}
sym = get_sym();
}
if (IR_IS_FOLDABLE_OP(op)
&& !IR_IS_UNRESOLVED(op1)
&& !IR_IS_UNRESOLVED(op2)
&& !IR_IS_UNRESOLVED(op3)) {
ref = ir_fold(p->ctx, IR_OPT(op, t), op1, op2, op3);
} else {
ref = ir_emit(p->ctx, IR_OPT(op, t), op1, op2, op3);
}
} else {
yy_error_sym("unexpected", sym);
}
break;
default:
yy_error_sym("unexpected", sym);
}
ir_define_var(p, str, len, ref);
if (str2) ir_define_var(p, str2, len2, ref);
return sym;
}
static int parse_type(int sym, uint8_t *t) {
const char *str;
size_t len;
ir_ref ref;
sym = parse_ID(sym, &str, &len);
ref = ir_strtab_find(&type_tab, str, len);
if (!ref) yy_error("invalid type");
*t = ref;
return sym;
}
static int parse_func(int sym, uint8_t *op) {
const char *str;
size_t len;
ir_ref ref;
sym = parse_ID(sym, &str, &len);
ref = ir_strtab_find(&op_tab, str, len);
if (!ref) yy_error("invalid op");
*op = ref - 1;
return sym;
}
static int parse_val(int sym, ir_parser_ctx *p, uint8_t op, uint32_t n, ir_ref *ref) {
const char *str;
size_t len;
ir_val val;
uint32_t kind = IR_OPND_KIND(ir_op_flags[op], n);
if (sym == YY_ID) {
sym = parse_ID(sym, &str, &len);
if (!IR_IS_REF_OPND_KIND(kind)) yy_error("unexpected reference");
*ref = ir_use_var(p, n, str, len);
} else if (sym == YY_STRING) {
sym = parse_STRING(sym, &str, &len);
if (kind != IR_OPND_STR) yy_error("unexpected string");
*ref = ir_strl(p->ctx, str, len);
} else if (sym == YY_DECNUMBER) {
sym = parse_DECNUMBER(sym, IR_I32, &val);
if (kind != IR_OPND_NUM && kind != IR_OPND_PROB) yy_error("unexpected number");
if (val.i64 < 0 && val.i64 >= 0x7ffffff) yy_error("number out of range");
*ref = val.u64;
} else if (sym == YY_NULL) {
sym = get_sym();
*ref = IR_UNUSED;
} else {
yy_error_sym("unexpected", sym);
}
return sym;
}
static int parse_const(int sym, uint8_t t, ir_val *val) {
if (sym == YY_DECNUMBER) {
sym = parse_DECNUMBER(sym, t, val);
} else if (sym == YY_HEXNUMBER) {
sym = parse_HEXNUMBER(sym, t, val);
} else if (sym == YY_FLOATNUMBER) {
sym = parse_FLOATNUMBER(sym, t, val);
} else if (sym == YY_CHARACTER) {
sym = parse_CHARACTER(sym, val);
} else {
yy_error_sym("unexpected", sym);
}
return sym;
}
static int parse_ID(int sym, const char **str, size_t *len) {
if (sym != YY_ID) {
yy_error_sym("<ID> expected, got", sym);
}
*str = (const char*)yy_text; *len = yy_pos - yy_text;
sym = get_sym();
return sym;
}
static int parse_DECNUMBER(int sym, uint32_t t, ir_val *val) {
if (sym != YY_DECNUMBER) {
yy_error_sym("<DECNUMBER> expected, got", sym);
}
if (t >= IR_DOUBLE) val->d = atof((const char*)yy_text); else val->i64 = atoll((const char*)yy_text);
sym = get_sym();
return sym;
}
static int parse_HEXNUMBER(int sym, uint32_t t, ir_val *val) {
if (sym != YY_HEXNUMBER) {
yy_error_sym("<HEXNUMBER> expected, got", sym);
}
val->u64 = strtoull((const char*)yy_text + 2, NULL, 16);
sym = get_sym();
return sym;
}
static int parse_FLOATNUMBER(int sym, uint32_t t, ir_val *val) {
if (sym != YY_FLOATNUMBER) {
yy_error_sym("<FLOATNUMBER> expected, got", sym);
}
val->d = atof((const char*)yy_text);
sym = get_sym();
return sym;
}
static int parse_CHARACTER(int sym, ir_val *val) {
if (sym != YY_CHARACTER) {
yy_error_sym("<CHARACTER> expected, got", sym);
}
if ((char)yy_text[1] != '\\') {
val->i64 = (char)yy_text[1];
} else if ((char)yy_text[2] == '\\') {
val->i64 = '\\';
} else if ((char)yy_text[2] == 'r') {
val->i64 = '\r';
} else if ((char)yy_text[2] == 'n') {
val->i64 = '\n';
} else if ((char)yy_text[2] == 't') {
val->i64 = '\t';
} else if ((char)yy_text[2] == '0') {
val->i64 = '\0';
} else {
IR_ASSERT(0);
}
sym = get_sym();
return sym;
}
static int parse_STRING(int sym, const char **str, size_t *len) {
if (sym != YY_STRING) {
yy_error_sym("<STRING> expected, got", sym);
}
*str = (const char*)yy_text + 1; *len = yy_pos - yy_text - 2;
sym = get_sym();
return sym;
}
static void parse(void) {
int sym;
yy_pos = yy_text = yy_buf;
yy_line = 1;
sym = parse_ir(get_sym());
if (sym != YY_EOF) {
yy_error_sym("<EOF> expected, got", sym);
}
}
static void yy_error(const char *msg) {
fprintf(stderr, "ERROR: %s at line %d\n", msg, yy_line);
exit(2);
}
static void yy_error_sym(const char *msg, int sym) {
fprintf(stderr, "ERROR: %s '%s' at line %d\n", msg, sym_name[sym], yy_line);
exit(2);
}
int ir_load(ir_ctx *ctx, FILE *f) {
ir_parser_ctx p;
int sym;
long pos, end;
p.ctx = ctx;
p.undef_count = 0;
ir_strtab_init(&p.var_tab, 256, 4096);
pos = ftell(f);
fseek(f, 0, SEEK_END);
end = ftell(f);
fseek(f, pos, SEEK_SET);
yy_buf = alloca(end - pos + 1);
yy_end = yy_buf + (end - pos);
fread((void*)yy_buf, (end - pos), 1, f);
*(unsigned char*)yy_end = 0;
yy_pos = yy_text = yy_buf;
yy_line = 1;
sym = parse_ir_func(get_sym(), &p);
if (sym != YY_EOF) {
yy_error_sym("<EOF> expected, got", sym);
}
if (p.undef_count) {
ir_check_indefined_vars(&p);
}
ir_strtab_free(&p.var_tab);
return 1;
}
void ir_loader_init(void)
{
ir_ref i;
ir_strtab_init(&type_tab, IR_LAST_OP, 0);
for (i = 1; i < IR_LAST_TYPE; i++) {
ir_strtab_lookup(&type_tab, ir_type_cname[i], strlen(ir_type_cname[i]), i);
}
ir_strtab_init(&op_tab, IR_LAST_OP, 0);
for (i = 0; i < IR_LAST_OP; i++) {
ir_strtab_lookup(&op_tab, ir_op_name[i], strlen(ir_op_name[i]), i + 1);
}
}
void ir_loader_free(void)
{
ir_strtab_free(&type_tab);
ir_strtab_free(&op_tab);
}
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