[Bug inline-asm/66631] inability to clobber segment regs makes tls problematic

[stsp at users dot sourceforge.net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66631

--- Comment #8 from Stas Sergeev <stsp at users dot sourceforge.net> ---
Note that O0 and O1 are fine.
Only O2 gives the problem. So there
might be a simple solution somewhere!