Performance of C loops For Vs While Vs goto [duplicate]

Question

Possible Duplicate:
C/C++: is GOTO faster than WHILE and FOR?

I know this has been asked for many times, but I never got an answer which satisfies me by googling.

I read somewhere that every loop(for/while/do-while/untill) will be eventually be converted to goto statements internally, Is that True?

If not, Which is the best loop to use as per the performance wise? Let me know if anybody knows?

Answer 1

The correct answer is to learn enough assembly in order to read through your compiler's generated code.

However, these micro-optimizations usually don't matter (except for very specific areas).