We follow the comments mentioned in http://reviews.llvm.org/D16842#344378 to implement this new patch. This patch implements the following vsx instructions: Vector load/store: lxv lxvx lxvb16x lxvl lxvll lxvh8x lxvwsx stxv stxvb16x stxvh8x stxvl stxvll stxvx Scalar load/store: lxsd lxssp lxsibzx lxsihzx stxsd stxssp stxsibx stxsihx 21 instructions Phabricator: http://reviews.llvm.org/D16919 llvm-svn: 262906