def emit_gc_load_or_indexed(self, op, ptr_box, index_box, itemsize,
factor, offset, sign, type='i'):
factor, offset, index_box = \
self._emit_mul_if_factor_offset_not_supported(index_box,
factor, offset)
#
if sign:
# encode signed into the itemsize value
itemsize = -itemsize
#
optype = type
if op is not None:
optype = op.type
if index_box is None:
args = [ptr_box, ConstInt(offset), ConstInt(itemsize)]
newload = ResOperation(OpHelpers.get_gc_load(optype), args)
else:
args = [ptr_box, index_box, ConstInt(factor),
ConstInt(offset), ConstInt(itemsize)]
newload = ResOperation(OpHelpers.get_gc_load_indexed(optype), args)
if op is None:
self.emit_op(newload)
else:
self.replace_op_with(op, newload)
return newload
