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Broadening the use of branch hints

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More uses of macros 'likely'/'unlikely' (renamed to
'l_likely'/'l_unlikely'), both in range (extended to the
libraries) and in scope (extended to hooks, stack growth).
This commit is contained in:
Roberto Ierusalimschy
2021-02-24 11:14:44 -03:00
parent c03c527fd2
commit 59c88f846d
24 changed files with 162 additions and 141 deletions
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8
loslib.c
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@@ -170,7 +170,7 @@ static int os_tmpname (lua_State *L) {
char buff[LUA_TMPNAMBUFSIZE];
int err;
lua_tmpnam(buff, err);
if (err)
if (l_unlikely(err))
return luaL_error(L, "unable to generate a unique filename");
lua_pushstring(L, buff);
return 1;
@@ -208,7 +208,7 @@ static int os_clock (lua_State *L) {
*/
static void setfield (lua_State *L, const char *key, int value, int delta) {
#if (defined(LUA_NUMTIME) && LUA_MAXINTEGER <= INT_MAX)
if (value > LUA_MAXINTEGER - delta)
if (l_unlikely(value > LUA_MAXINTEGER - delta))
luaL_error(L, "field '%s' is out-of-bound", key);
#endif
lua_pushinteger(L, (lua_Integer)value + delta);
@@ -253,9 +253,9 @@ static int getfield (lua_State *L, const char *key, int d, int delta) {
int t = lua_getfield(L, -1, key); /* get field and its type */
lua_Integer res = lua_tointegerx(L, -1, &isnum);
if (!isnum) { /* field is not an integer? */
if (t != LUA_TNIL) /* some other value? */
if (l_unlikely(t != LUA_TNIL)) /* some other value? */
return luaL_error(L, "field '%s' is not an integer", key);
else if (d < 0) /* absent field; no default? */
else if (l_unlikely(d < 0)) /* absent field; no default? */
return luaL_error(L, "field '%s' missing in date table", key);
res = d;
}