// match: (SLLconst [sc] (UBFIZ [bfc] x))
	// cond: sc+bfc.getARM64BFwidth()+bfc.getARM64BFlsb() < 64
	// result: (UBFIZ [armBFAuxInt(bfc.getARM64BFlsb()+sc, bfc.getARM64BFwidth())] x)
	for {
		sc := auxIntToInt64(v.AuxInt)
		if v_0.Op != OpARM64UBFIZ {
			break
		}
		bfc := auxIntToArm64BitField(v_0.AuxInt)
		x := v_0.Args[0]
		if !(sc+bfc.getARM64BFwidth()+bfc.getARM64BFlsb() < 64) {
			break
		}