x4 6 apps/HelloHexagon/pipeline.cpp Expr blur5(Expr x0, Expr x1, Expr x2, Expr x3, Expr x4) { x4 12 apps/HelloHexagon/pipeline.cpp x4 = cast<uint16_t>(x4); x4 13 apps/HelloHexagon/pipeline.cpp return cast<uint8_t>((x0 + 4*x1 + 6*x2 + 4*x3 + x4 + 8)/16);