// Usage of suffixes for non-EVEX instructions.
	ADCB.Z $7, AL                    // ERROR "invalid instruction"
	ADCB.RU_SAE $7, AL               // ERROR "invalid instruction"
	ADCB.RU_SAE.Z $7, AL             // ERROR "invalid instruction"
	// Usage of rounding with invalid operands.
	VADDPD.RU_SAE X3, X2, K1, X1     // ERROR "unsupported rounding"
	VADDPD.RD_SAE X3, X2, K1, X1     // ERROR "unsupported rounding"

	VADDPD.Z X30, X1, K7, X0  // 6291f58f58c6
	VMAXPD.Z (AX), Z2, K1, Z1 // 62f1edc95f08
	// EVEX: embedded rounding.
	VADDPD.RU_SAE Z3, Z2, K1, Z1   // 62f1ed5958cb
	VADDPD.RD_SAE Z3, Z2, K1, Z1   // 62f1ed3958cb
	VADDPD.RZ_SAE Z3, Z2, K1, Z1   // 62f1ed7958cb
	VADDPD.RN_SAE Z3, Z2, K1, Z1   // 62f1ed1958cb
	VADDPD.RU_SAE.Z Z3, Z2, K1, Z1 // 62f1edd958cb
	VADDPD.RD_SAE.Z Z3, Z2, K1, Z1 // 62f1edb958cb