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


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

--- Comment #12 from Stas Sergeev <stsp at users dot sourceforge.net> ---
Note that on x86_64 you can't set FS without a syscall.
I would really hate doing that in asm it seems.


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