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Improve hash performance

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- better `TOK_HASH_FUNC`
- increases `hash_ident` initial size to 16k (from 8k)
- `cstr_cat` uses single `realloc` + `memcpy`
- `cstr_cat` can append terminating zero
- `tok_str_realloc` initial size to 16 (from 8)
- `parse_define` uses static `tokstr_buf`
- `next` uses static `tokstr_buf`
- fixes two latent bugs (wrong deallocations in libtcc.c:482 and
  tccpp.c:2987)
This commit is contained in:
Vlad Vissoultchev
2016-04-17 16:37:23 +03:00
parent acc8f602e5
commit 224236f57c
6 changed files with 105 additions and 97 deletions
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10
i386-asm.c
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@ -1300,7 +1300,7 @@ ST_FUNC void subst_asm_operand(CString *add_str,
if (!(r & VT_LVAL) && modifier != 'c' && modifier != 'n')
cstr_ccat(add_str, '$');
if (r & VT_SYM) {
cstr_cat(add_str, get_tok_str(sv->sym->v, NULL));
cstr_cat(add_str, get_tok_str(sv->sym->v, NULL), -1);
if ((uint32_t)sv->c.i != 0) {
cstr_ccat(add_str, '+');
} else {
@ -1311,17 +1311,17 @@ ST_FUNC void subst_asm_operand(CString *add_str,
if (modifier == 'n')
val = -val;
snprintf(buf, sizeof(buf), "%d", (int)sv->c.i);
cstr_cat(add_str, buf);
cstr_cat(add_str, buf, -1);
} else if ((r & VT_VALMASK) == VT_LOCAL) {
snprintf(buf, sizeof(buf), "%d(%%ebp)", (int)sv->c.i);
cstr_cat(add_str, buf);
cstr_cat(add_str, buf, -1);
} else if (r & VT_LVAL) {
reg = r & VT_VALMASK;
if (reg >= VT_CONST)
tcc_error("internal compiler error");
snprintf(buf, sizeof(buf), "(%%%s)",
get_tok_str(TOK_ASM_eax + reg, NULL));
cstr_cat(add_str, buf);
cstr_cat(add_str, buf, -1);
} else {
/* register case */
reg = r & VT_VALMASK;
@ -1378,7 +1378,7 @@ ST_FUNC void subst_asm_operand(CString *add_str,
#endif
}
snprintf(buf, sizeof(buf), "%%%s", get_tok_str(reg, NULL));
cstr_cat(add_str, buf);
cstr_cat(add_str, buf, -1);
}
}