Sy BrandI co-wrote a tour of some recent MSVC backend improvements!
Have a look for some before-and-after assembly samples and more details.
https://devblogs.microsoft.com/cppblog/a-tour-of-4-msvc-backend-improvements/
flacs@TartanLlama i think the main thing that would convince my boss to more often update the msvc version we use to build production binaries would be a stat about frequency of codegen bugs going down, currently our approach is to lag one major version behind what Microsoft releases but it's a bit annoying sometimes