From the release notes (https://releases.llvm.org/14.0.0/docs/ReleaseNotes.html#chan...):

“The maximum allowed alignment has been increased from 2^29 to 2^32”

Does that mean you can now align structure fields to 4 gigabyte boundaries, while previously, that was ‘only’ 512 megabytes? If so, who needs that?

V8 uses __builtin_assume_aligned to tell the compiler that the base address it uses for pointer compression is 4GB-aligned: https://source.chromium.org/chromium/chromium/src/+/main:v8/...

clang 14 seems to have very few C++20 progress, as per release notes, how things change.

Progress is much better now with trunk (clang 15).

Meta, Intel have replaced “Apple, Google” duo in terms of cpp frontend development.

It remains to be seen how much.

clang has been lagging behind gcc for c++ support these years by a lot, if you want to use c++17|c++20 your only choice is really g++ these days, very disappointed.

There is also VC++ for those of us on Windows.

Look at all that green,

https://en.cppreference.com/w/cpp/compiler_support/20