On 07 Oct 2015, at 09:37, O. Hartmann <ohartman_at_zedat.fu-berlin.de> wrote: > > I hit on a box this nasty/sticky error when performing buildworld. > > /usr/src is on r288980 ... > --- ieee802_11_common.o --- ... > -c /usr/src/usr.sbin/wpa/wpa_supplicant/../../../contrib/wpa//src/common/ieee802_11_common.c > -o ieee802_11_common.o Cannot emit physreg copy instruction UNREACHABLE > executed > at /usr/src/lib/clang/libllvmx86codegen/../../../contrib/llvm/lib/Target/X86/X86InstrInfo.cpp:3935! Somebody else reported the same to me yesterday. This is an upstream bug with AVX (which is still present in llvm trunk), so for now you need to set your CPUTYPE to something that doesn't have AVX, or simply unset your CPUTYPE. The bug has been reported upstream, and once there is a fix, I will import it ASAP. -Dimitry
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