tag help 820535 block 832098 by 832098 thanks I don't know how to fix this issue. It has been discussed on the upstream ml here: http://lists.llvm.org/pipermail/llvm-dev/2016-May/099761.html and http://lists.llvm.org/pipermail/llvm-dev/2016-August/103457.html Any help would be appreciated! Sylvestre