CopyTileToBackend implemented in tile.cpp, tested using tile_test
CopyTileToBackend implemented in tile.cpp, tested using tile_test


Former-commit-id: ed230a2fed6acd0c8ea1ab99bf8d8aea8f3a89fc
apavlo/peloton,PauloAmora/peloton,malin1993ml/peloton,cmu-db/peloton,jessesleeping/iso_peloton,wangziqi2016/peloton,malin1993ml/peloton,prashasthip/peloton,malin1993ml/peloton,prashasthip/peloton,jessesleeping/iso_peloton,wangziqi2016/peloton,yingjunwu/peloton,cmu-db/peloton,vittvolt/peloton,phisiart/peloton-p3,vittvolt/peloton,vittvolt/peloton,yingjunwu/peloton,ShuxinLin/peloton,seojungmin/peloton,ShuxinLin/peloton,vittvolt/15721-peloton,yingjunwu/peloton,AngLi-Leon/peloton,PauloAmora/peloton,vittvolt/peloton,eric-haibin-lin/peloton-1,vittvolt/peloton,haojin2/peloton,seojungmin/peloton,malin1993ml/peloton,eric-haibin-lin/peloton-1,haojin2/peloton,wangziqi2016/peloton,wangziqi2016/peloton,eric-haibin-lin/peloton-1,cmu-db/peloton,AllisonWang/peloton,prashasthip/peloton,AngLi-Leon/peloton,ShuxinLin/peloton,cmu-db/peloton,prashasthip/peloton,haojin2/peloton,PauloAmora/peloton,apavlo/peloton,ShuxinLin/peloton,seojungmin/peloton,apavlo/peloton,cmu-db/peloton,vittvolt/15721-peloton,wangziqi2016/peloton,AllisonWang/peloton,apavlo/peloton,yingjunwu/peloton,wangziqi2016/peloton,apavlo/peloton,malin1993ml/peloton,ShuxinLin/peloton,haojin2/peloton,AngLi-Leon/peloton,AllisonWang/peloton,jessesleeping/iso_peloton,cmu-db/peloton,haojin2/peloton,eric-haibin-lin/peloton-1,vittvolt/15721-peloton,malin1993ml/peloton,jessesleeping/iso_peloton,phisiart/peloton-p3,yingjunwu/peloton,jessesleeping/iso_peloton,AngLi-Leon/peloton,vittvolt/peloton,vittvolt/15721-peloton,eric-haibin-lin/peloton-1,phisiart/peloton-p3,seojungmin/peloton,apavlo/peloton,seojungmin/peloton,haojin2/peloton,AllisonWang/peloton,AllisonWang/peloton,AngLi-Leon/peloton,phisiart/peloton-p3,phisiart/peloton-p3,prashasthip/peloton,prashasthip/peloton,AllisonWang/peloton,AngLi-Leon/peloton,PauloAmora/peloton,vittvolt/15721-peloton,ShuxinLin/peloton,PauloAmora/peloton,eric-haibin-lin/peloton-1,yingjunwu/peloton,vittvolt/15721-peloton,phisiart/peloton-p3,jessesleeping/iso_peloton,seojungmin/peloton,PauloAmora/peloton,jessesleeping/iso_peloton