zend_alloc trailing 1 calculation helper ZEND_ATTRIBUTE_CONST addition. (#13874)

devnexen · web-flow · commit 7a3516cca5ad · 2024-04-03T13:46:07.000+01:00
diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c
@@ -541,7 +541,7 @@ static void *zend_mm_mmap(size_t size)
 /***********/
 
 /* number of trailing set (1) bits */
-static zend_always_inline int zend_mm_bitset_nts(zend_mm_bitset bitset)
+ZEND_ATTRIBUTE_CONST static zend_always_inline int zend_mm_bitset_nts(zend_mm_bitset bitset)
 {
 #if (defined(__GNUC__) || __has_builtin(__builtin_ctzl)) && SIZEOF_ZEND_LONG == SIZEOF_LONG && defined(PHP_HAVE_BUILTIN_CTZL)
 	return __builtin_ctzl(~bitset);

Original file line number	Diff line number	Diff line change
`@@ -541,7 +541,7 @@ static void *zend_mm_mmap(size_t size)`
`541`	`541`	`/***********/`
`542`	`542`
`543`	`543`	`/* number of trailing set (1) bits */`
`544`		`-static zend_always_inline int zend_mm_bitset_nts(zend_mm_bitset bitset)`
	`544`	`+ZEND_ATTRIBUTE_CONST static zend_always_inline int zend_mm_bitset_nts(zend_mm_bitset bitset)`
`545`	`545`	`{`
`546`	`546`	`#if (defined(__GNUC__) \|\| __has_builtin(__builtin_ctzl)) && SIZEOF_ZEND_LONG == SIZEOF_LONG && defined(PHP_HAVE_BUILTIN_CTZL)`
`547`	`547`	`return __builtin_ctzl(~bitset);`