[PATCH 18/18] arm64: lto: Strengthen READ_ONCE() to acquire when CLANG_LTO=y

[Peter Zijlstra]

On Tue, Jul 07, 2020 at 04:01:28PM -0700, Nick Desaulniers wrote:
> I'm trying to put together a Micro Conference for Linux Plumbers
> conference focused on "make LLVM slightly less shitty."  Do you all
> plan on attending the conference? Would it be worthwhile to hold a
> session focused on discussing this (LTO and memory models) be
> worthwhile?

I'd love to have a session about compilers and memory ordering with both
GCC and CLANG in attendance.

We need a solution for dependent-loads and control-dependencies for both
toolchains.