// riscv64:"MOV\t\\$0,",-"SRL"
	return uint64(v) >> 32
}

func rshConst64Ux64Overflow16(v uint16) uint64 {
	// riscv64:"MOV\t\\$0,",-"SRL"
	return uint64(v) >> 16
}

func rshConst64Ux64Overflow8(v uint8) uint64 {
	// riscv64:"MOV\t\\$0,",-"SRL"
	return uint64(v) >> 8
}

func rshConst64x64(v int64) int64 {
	// ppc64x:"SRAD"
	// riscv64:"SRAI\t",-"OR",-"SLTIU"
	return v >> uint64(33)
}