clobberPtr(b, v, offset)

	case types.TSTRING:
		// struct { byte *str; int len; }
		clobberPtr(b, v, offset)

	case types.TINTER:
		// struct { Itab *tab; void *data; }
		// or, when isnilinter(t)==true:
		// struct { Type *type; void *data; }
		clobberPtr(b, v, offset)
		clobberPtr(b, v, offset+int64(types.PtrSize))

	case types.TSLICE:
		// struct { byte *array; int len; int cap; }

	case TINTER: // implemented as 2 pointers
		w = 2 * int64(PtrSize)
		t.align = uint8(PtrSize)
		t.intRegs = 2
		expandiface(t)
		if len(t.allMethods.Slice()) == 0 {
			t.setAlg(ANILINTER)
		} else {
			t.setAlg(AINTER)
		}
		t.ptrBytes = int64(2 * PtrSize)

	case TCHAN: // implemented as pointer
		w = int64(PtrSize)
		t.intRegs = 1
		t.ptrBytes = int64(PtrSize)