Misc questions:- licensing, VC++ IDE compatible, GPGPU, LTCG,

[bearophile]

> if you look at the asm written in video decoders you can see that it's many
> times faster than the asm produced from C by the best compilers.

Right today I have found an interesting blog post that shows an example of what advanced compilers aren't able to do yet:
http://virtualdub.org/blog/pivot/entry.php?id=307

If you want to see better code you can take a look at x264:
http://git.videolan.org/?p=x264.git;a=tree;f=common/x86

Bye,
bearophile