I think it's awesome that GCC provides builtins that help ARM devs generate the best atomic code possible, for ARM. As someone who only cares about her coding r

I think it's awesome that GCC provides builtins that help ARM devs generate the best atomic code possible, for ARM. As someone who only cares about her coding running natively on x86, I would obviously never use C/C++11 atomics, since it's kind of regressive for a high-level language to specify 42 different ways to say "MOV". How would I even know my code works? The way I see it, the "portability" here only flows in one direction: helping ARM/MIPS/etc. folks move to x86. The only thing I don't get, is why it's part of the language standard.