Bug 879: fix compilation of tri1=mat*tri2 by copying tri2 into a full temporary.
Bug 879: fix compilation of tri1=mat*tri2 by copying tri2 into a full temporary.

pasuka/eigen,ritsu1228/eigen,pasuka/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,TSC21/Eigen,toastedcrumpets/eigen,TSC21/Eigen,TSC21/Eigen,ritsu1228/eigen,Zefz/eigen,toastedcrumpets/eigen,toastedcrumpets/eigen,TSC21/Eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,Zefz/eigen,ritsu1228/eigen,Zefz/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,toastedcrumpets/eigen,pasuka/eigen,pasuka/eigen,Zefz/eigen,pasuka/eigen