func userArenaHeapBitsSetSliceType(typ *_type, n int, ptr unsafe.Pointer, s *mspan) {
	mem, overflow := math.MulUintptr(typ.Size_, uintptr(n))
	if overflow || n < 0 || mem > maxAlloc {
		panic(plainError("runtime: allocation size out of range"))
	}
	for i := 0; i < n; i++ {
		userArenaHeapBitsSetType(typ, add(ptr, uintptr(i)*typ.Size_), s)
	}
}

// userArenaHeapBitsSetType is the equivalent of heapSetType but for

    assert(axis >= 0);
    assert(index[axis] == 0);
    offset_ = IndexToOffset(shape, index);
    stride_ = StrideForAxis(shape, axis);
    size_ = shape[axis];
  }

  // Returns the size of the 1-d slice across the tensor.
  int64_t size() const { return size_; }

  // Calculates the next index in a tensor excluding a specified axis.
  //
  // Returns the next index where one exists.

	if t.TFlag&abi.TFlagRegularMemory != 0 {
		// Handle ptr sizes specially, see issue 37086.
		switch t.Size_ {
		case 4:
			return memhash32(p, h)
		case 8:
			return memhash64(p, h)
		default:
			return memhash(p, h, t.Size_)
		}
	}
	switch t.Kind_ & abi.KindMask {
	case abi.Float32:
		return f32hash(p, h)
	case abi.Float64:
		return f64hash(p, h)

	}

	// Check that (*[n]elem)(p) doesn't straddle multiple heap objects.
	// TODO(mdempsky): Fix #46938 so we don't need to worry about overflow here.
	if checkptrStraddles(p, n*elem.Size_) {
		throw("checkptr: converted pointer straddles multiple allocations")
	}
}

// checkptrStraddles reports whether the first size-bytes of memory
// addressed by ptr is known to straddle more than one Go allocation.

		return nil, plainError("args must be a pointer or nil")
	}
	argp := a.data
	var argSize uintptr
	if argp != nil {
		argSize = (*ptrtype)(unsafe.Pointer(a._type)).Elem.Size_
	}

	h := new(debugCallHandler)
	h.gp = gp
	// gp may not be running right now, but we can still get the M
	// it will run on since it's locked.
	h.mp = gp.lockedm.ptr()

					memclrHasPointers(k, 8)
				}
			}
			e := add(unsafe.Pointer(b), dataOffset+abi.MapBucketCount*8+i*uintptr(t.ValueSize))
			if t.Elem.Pointers() {
				memclrHasPointers(e, t.Elem.Size_)
			} else {
				memclrNoHeapPointers(e, t.Elem.Size_)
			}
			b.tophash[i] = emptyOne
			// If the bucket now ends in a bunch of emptyOne states,
			// change those to emptyRest states.
			if i == abi.MapBucketCount-1 {

				*(*unsafe.Pointer)(k) = nil
			}
			e := add(unsafe.Pointer(b), dataOffset+abi.MapBucketCount*4+i*uintptr(t.ValueSize))
			if t.Elem.Pointers() {
				memclrHasPointers(e, t.Elem.Size_)
			} else {
				memclrNoHeapPointers(e, t.Elem.Size_)
			}
			b.tophash[i] = emptyOne
			// If the bucket now ends in a bunch of emptyOne states,
			// change those to emptyRest states.
			if i == abi.MapBucketCount-1 {

			k.str = nil
			e := add(unsafe.Pointer(b), dataOffset+abi.MapBucketCount*2*goarch.PtrSize+i*uintptr(t.ValueSize))
			if t.Elem.Pointers() {
				memclrHasPointers(e, t.Elem.Size_)
			} else {
				memclrNoHeapPointers(e, t.Elem.Size_)
			}
			b.tophash[i] = emptyOne
			// If the bucket now ends in a bunch of emptyOne states,
			// change those to emptyRest states.
			if i == abi.MapBucketCount-1 {

	kind := t.Kind_ & abi.KindMask
	if kind == abi.Array || kind == abi.Struct {
		// for composite objects we have to read every address
		// because a write might happen to any subobject.
		racereadrangepc(addr, t.Size_, callerpc, pc)
	} else {
		// for non-composite objects we can read just the start
		// address, as any write must write the first byte.
		racereadpc(addr, callerpc, pc)
	}
}

		// As an implementation detail we allow to set finalizers for an inner byte
		// of an object if it could come from tiny alloc (see mallocgc for details).
		if ot.Elem == nil || ot.Elem.Pointers() || ot.Elem.Size_ >= maxTinySize {
			throw("runtime.SetFinalizer: pointer not at beginning of allocated block")
		}
	}

	f := efaceOf(&finalizer)
	ftyp := f._type
	if ftyp == nil {