as to opinions if this would result in general optymisations - some say no (and they belive compiler produce code better than you do) - some say yes (and they say that still compiler are silly to produce uneffective
code sometimes -
Why does the compiler make float to int as fast as the assembly code i got from www.musicdsp.org ?
So having ASM is needed in my opinion.
Also its very handy if you program microcontrollers.
If you still haven't gotten that point by now, perhaps you are trolling us.