dblaikie added a comment. I guess the other way to test for pod-for-purposes-of-ABI is IRgen. Looks like MSVC isn't observable based on sizeof or alignof on these issues (the previous godbolt shows MSVC's answer to alignment for the packed and size for the trailing packing don't change based on any of the variations (pod, non-pod, pod-with-defaulted-special-members)) - but should be observable based on the returning ABI.
Ah, here we go: https://godbolt.org/z/sd88zTjPP So MSVC does consider the defaulted special member as still a valid pod-for-purposes-of-ABI and clang is incorrect/not ABI compatible with this. So MSVC does want this fix. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D119051/new/ https://reviews.llvm.org/D119051 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
