s.startBlock(bOk)
			// nonempty -> empty
			// Need to load type from itab
			off := s.newValue1I(ssa.OpOffPtr, byteptr, rttype.ITab.OffsetOf("Type"), itab)
			s.vars[typVar] = s.load(byteptr, off)
			s.endBlock()

			// itab is nil, might as well use that as the nil result.
			s.startBlock(bFail)
			s.vars[typVar] = itab
			s.endBlock()

			// Merge point.
			bEnd := s.f.NewBlock(ssa.BlockPlain)

		v2.AddArg(y)
		v0.AddArg2(v1, v2)
		v.AddArg(v0)
		return true
	}
}
func rewriteValueS390X_OpITab(v *Value) bool {
	v_0 := v.Args[0]
	// match: (ITab (Load ptr mem))
	// result: (MOVDload ptr mem)
	for {
		if v_0.Op != OpLoad {
			break
		}
		mem := v_0.Args[1]
		ptr := v_0.Args[0]
		v.reset(OpS390XMOVDload)
		v.AddArg2(ptr, mem)