Hello,
in GCC we can use __builtin_expect() to give the compiler a branch prediction
information for expressions. Is it possible to use an attribute for enums to
say that enum value A is more likely than B, e.g.
enum e {
__attribute__((likely)) A,
B,
C
};
This is useful for status codes that are encoded in an enum, e.g.
enum status = func();
if (status != ERROR_STATUS) {
blablub();
}
I found nothing in the manual. Maybe this is a useful enhancement for the GCC?
--
Sebastian Huber, embedded brains GmbH
Address : Obere Lagerstr. 30, D-82178 Puchheim, Germany
Phone : +49 89 18 90 80 79-6
Fax : +49 89 18 90 80 79-9
E-Mail : sebastian.huber@xxxxxxxxxxxxxxxxxx
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