* cgen-ops.h (ADDQI, SUBQI, MULQI, NEGQI, ABSQI, ADDHI, SUBHI)

	(MULHI, NEGHI, ABSHI, ADDSI, SUBSI, MULSI, NEGSI, ABSSI, ADDDI)
	(SUBDI, MULDI, NEGDI, ABSDI): Cast arguments to the unsigned type
	variant; UQI, UHI, USI, UDI, and cast the result to the signed
	type, QI, HI, SI, DI.