code review 11406044: runtime: use funcdata to supply garbage collection info...

src/cmd/8g/reg.c

 // Derived from Inferno utils/6c/reg.c
 // http://code.google.com/p/inferno-os/source/browse/utils/6c/reg.c
 //
 //      Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
 //      Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
 //      Portions Copyright © 1997-1999 Vita Nuova Limited
 //      Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
 //      Portions Copyright © 2004,2006 Bruce Ellis
 //      Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
 //      Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
@@ skipping 177 matching lines @@
          * allocate pcs
          * find use and set of variables
          */
         nr = 0;
         for(p=firstp; p!=P; p=p->link) {
                 switch(p->as) {
                 case ADATA:
                 case AGLOBL:
                 case ANAME:
                 case ASIGNAME:
-                case ALOCALS:
                 case ATYPE:
-                case ANPTRS:
-                case APTRS:
                         continue;
                 }
                 r = rega();
                 nr++;
                 if(firstr == R) {
                         firstr = r;
                         lastr = r;
                 } else {
                         lastr->link = r;
                         r->p1 = lastr;
@@ skipping 1699 matching lines @@
                         // eliminate the mov.
                         p2->from = p->from;
                         *p = *p2;
                         p->link = p2->link;
                         if(debug['R'] && debug['v']) {
                                 print(" ===change== %P\n", p);
                         }
                 }
         }
 }