Comment # 2 on bug 66317 from Marc Dietrich

DRAW_USE_LLVM=0 helped, release_33 also works

wasted a week of bisecting, just to find out that I configured my llvm branch
wrong (I used --enable-targets=r600). It turned out that you need at least
--enable-targets=host,r600 or you will get the crash above. Maybe mesa's
configure should check for "llvm-config --targets-build" or document this fact
somewhere.