lhmouse wrote: I think I should delete the vector and matrix part in this change. Clang doesn't use compatible layout for vectors of `long double`s. This isn't a new issue; it's already very different for x86_64 on Linux. Thus there's likely no code which uses vectors of `long double`s.
GCC layout for `typedef V long double __attribute__((__vector_size__(32)))`: ``` 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 v v v v v v v v v v . . . . . . v v v v v v v v v v . . . . . . \__________ elem[0] _________/\____ padding ___/\__________ elem[1] _________/\____ padding ___/ ``` Clang layout: ``` 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 v v v v v v v v v v v v v v v v v v v v . . . . . . . . . . . . \__________ elem[0] _________/\__________ elem[1] _________/\_____________ padding ____________/ ``` https://github.com/llvm/llvm-project/pull/237057 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
