Do compilers produce better code for do-while loops versus other types of loops?

Question

There\'s a comment in the zlib compression library (which is used in the Chromium project among many others) which implies that a do-while loop in C generates "better&q

Answer 1

This discussion of while vs. do efficiency is completely pointless in this case, as there is no body.

while (Condition)
{
}

and

do
{
}
while (Condition);

are absolutely equivalent.