MFC r338689: Pull in r335365 from upstream llvm trunk (by Krzysztof Parzyszek): Initialize LiveRegs once in BranchFolder::mergeCommonTails This should fix '(TRI && "LivePhysRegs is not initialized."' assertions when building the lang/qt5-qml port in certain configurations. Reported by: Piotr Kubaj <pkubaj@anongoth.pl> PR: 231355
stable/11/
stable/11/contrib/llvm/lib/CodeGen/BranchFolding.cpp