https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69549
Adam Belay <abelay at mit dot edu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |abelay at mit dot edu --- Comment #10 from Adam Belay <abelay at mit dot edu> --- I realize this bug and patch is a couple years old, but I wanted to mention that my research group is working on a new kernel in C++ and this feature would be very useful to us. Without it, the FS and GS segment can only be accessed via inline assembly, which is less convenient and more difficult for GCC to optimize.