Linus Torvalds wrote: > > First off, gcc _does_ have a perfectly fine notion of how heavy-weight an > "asm" statement is: just count it as a single instruction (and count the > argument setup cost that gcc _can_ estimate). > True. It's not what it's doing, though. It looks for '\n' and ';' characters, and counts the maximum instruction size for each possible instruction. The reason why is that gcc's size estimation is partially designed to select what kind of branches it needs to use on architectures which have more than one type of branches. As a result, it tends to drastically overestimate, on purpose. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
