/* Prefetch into L1 cache for write. */
#define prefetchw(addr) __builtin_prefetch((addr), 1)
-/* Declare that pointers to the annotated type may alias other pointers. */
-#define _may_alias_attribute __attribute__((may_alias))
-
/* Hint that the annotated function is rarely called. */
#if GCC_PREREQ(4, 4) || __has_attribute(cold)
# define _cold_attribute __attribute__((cold))