Nathanael Nerode <[EMAIL PROTECTED]> writes: > Oddly, it looks like GCC doesn't currently ever generate > 486-specific instructions; they are only (currently) of benefit to > assembly programmers. (Hmm... maybe I should see if there's an > enhancement opportunity to GCC there.)
I have a patch floating around here that adds a __builtin_bswap32/64, which could generate bswap on i486, if anybody is interested. I was planning to recognize bswaps from C Code too, but I'm not sure that will work out... I think it would be quite useful, though, since byte swapping often occurs in performance-critical code like emulators. -- Falk