nik/lush
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Broadening the use of branch hints

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

8
lmem.c
View File

@@ -83,7 +83,7 @@ void *luaM_growaux_ (lua_State *L, void *block, int nelems, int *psize,
if (nelems + 1 <= size) /* does one extra element still fit? */
return block; /* nothing to be done */
if (size >= limit / 2) { /* cannot double it? */
if (unlikely(size >= limit)) /* cannot grow even a little? */
if (l_unlikely(size >= limit)) /* cannot grow even a little? */
luaG_runerror(L, "too many %s (limit is %d)", what, limit);
size = limit; /* still have at least one free place */
}
@@ -164,7 +164,7 @@ void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) {
global_State *g = G(L);
lua_assert((osize == 0) == (block == NULL));
newblock = firsttry(g, block, osize, nsize);
if (unlikely(newblock == NULL && nsize > 0)) {
if (l_unlikely(newblock == NULL && nsize > 0)) {
if (nsize > osize) /* not shrinking a block? */
newblock = tryagain(L, block, osize, nsize);
if (newblock == NULL) /* still no memory? */
@@ -179,7 +179,7 @@ void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) {
void *luaM_saferealloc_ (lua_State *L, void *block, size_t osize,
size_t nsize) {
void *newblock = luaM_realloc_(L, block, osize, nsize);
if (unlikely(newblock == NULL && nsize > 0)) /* allocation failed? */
if (l_unlikely(newblock == NULL && nsize > 0)) /* allocation failed? */
luaM_error(L);
return newblock;
}
@@ -191,7 +191,7 @@ void *luaM_malloc_ (lua_State *L, size_t size, int tag) {
else {
global_State *g = G(L);
void *newblock = firsttry(g, NULL, tag, size);
if (unlikely(newblock == NULL)) {
if (l_unlikely(newblock == NULL)) {
newblock = tryagain(L, NULL, tag, size);
if (newblock == NULL)
luaM_error(L);