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   6 <TITLE>The SUIF Version 1 Library - Label Symbols</TITLE>
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  17 <H2><A NAME="SEC54" HREF="suif1_toc.html#TOC54">Label Symbols</A></H2>
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  25 The <CODE>label_sym</CODE> class represents label symbols.  Labels are used
  26 within procedures to specify targets of branch and jump instructions.
  27 They may not be entered in global or file symbol tables.  The position
  28 of a label is usually indicated by a label instruction (see section <A HREF="suif1_38.html#SEC38">Label Instructions</A>), but for labels associated with high-level AST nodes, the
  29 label positions may be implicit.  The <CODE>label_sym</CODE> class contains no
  30 extra fields beyond those in the base <CODE>sym_node</CODE> class.
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