No idea either, I haven't compiled for WinXP in ages, the last time I used WinXP (64 bit) is at least 10 years ago. The latest MSVC build tools do not support WinXp compatible builds anymore.mar wrote: ↑Mon May 27, 2019 5:23 pmYou're probably right, it only seems to happen when I compile against older Win SDK (8.1 or earlier).
It also happens when I try to compile for WinXP, no idea if it's related.
I have the feeling that for integer work the optimization of the latest MSVC compiler (14.2127702) is on par with the latest Intel v19.0 C++ compiler (2019.3.056), in the past I could always get some extra performance (~7%) by using the Intel compiler but this seems to be no longer the case. Intel is always a few steps behind, for instance their latest compiler still doesn't integrate into VS-2019.