https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81870
--- Comment #2 from Petr <kobalicek.petr at gmail dot com> --- I see, so if I understand it correctly then: 1. `__builtin_assume_aligned()` should be used to promote the type to a higher than natural alignment, for example 16 bytes for easier auto-vectorization. 2. `__attribute__((aligned(N)))` should be used to relax alignment of native types to lower than natural alignment. It's interesting that with `__builtin_assume_aligned()` I achieved basically the same effect as with `__attribute__((aligned(N))`, just the sanitizer is not happy. Interestingly, I thought that __builtin_assume_aligned() is basically equivalent to `__assume_aligned()` provided by Intel and MS compilers. Anyway thanks for your answer, I need to fix my code a bit.
