Go to the first, previous, next, last section, table of contents.
SUIF uses special pseudo-instructions to mark the positions of labels
within the lists of instructions. These label (lab) instructions
are represented by the in_lab class, which contains a single
field holding the symbol for a label. The label and
set_label methods access this field.
No operation is performed by a label instruction. Its only purpose is
to mark the location of a label symbol in an instruction list. The
label field must be a pointer to the symbol for the label, which
must be defined within the scope where the label instruction occurs.
The destination operand is unused and trying to set it will cause an
error. The result type should always be the SUIF void type.
Go to the first, previous, next, last section, table of contents.