On 8/18/2015 6:01 AM, ponce wrote:
One thing that was striking to me is that it by and large it doesn't use PUSH,
POP, and SETcc. Actually I don't remember such an instruction being emitted by
it.
And indeed using PUSH/POP/SETcc in assembly were often slower than the
alternative. Which is _way_ different that the old x86 where each of these
things would gain speed.
The 32 bit code generator does a lot of push/pop, but the 64 bit one does far
less because function parameters are passed in registers most of the time.
