dc85719d5b
Motivation for this and follow-on patches is to improve codegen for libc++, where using memcpy limits optimizations, like vectorization for code iteration over std::vector<std::complex<float>>: https://godbolt.org/z/f3vqYos3c Depends on https://github.com/llvm/llvm-project/pull/81289. PR: https://github.com/llvm/llvm-project/pull/81313