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   cmdlist.c

   cmdlist.g

   cmdlist.h

   ge.h

   geasm.c

   geload.c

   geoptimize.c

   gesave.c

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source\src\bytecode\geoptimize.c
  1 /******************************************************************************
  2 *
  3 * Copyright (C) 2006, The Gentee Group. All rights reserved. 
  4 * This file is part of the Gentee open source project - http://www.gentee.com. 
  5 * 
  6 * THIS FILE IS PROVIDED UNDER THE TERMS OF THE GENTEE LICENSE ("AGREEMENT"). 
  7 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS FILE CONSTITUTES RECIPIENTS 
  8 * ACCEPTANCE OF THE AGREEMENT.
  9 *
 10 * ID: ge 18.10.06 0.0.A.
 11 *
 12 * Author: Alexey Krivonogov ( gentee )
 13 *
 14 * Summary: 
 15 * 
 16 ******************************************************************************/
 17 
 18 #ifndef RUNTIME
 19 
 20 #include "ge.h"
 21 #include "../vm/vm.h"
 22 #include "../vm/vmload.h"
 23 #include "../bytecode/bytecode.h"
 24 #include "../genteeapi/gentee.h"
 25 
 26 puint optiused;
 27 
 28 void STDCALL geopti_var( pvartype var )
 29 {
 30    ge_getused( var->type );
 31 
 32    if ( var->flag & VAR_OFTYPE )
 33       ge_getused( var->oftype );
 34 }
 35 
 36 void STDCALL geopti_varlist( pvartype pvar, uint count )
 37 {
 38    uint i;
 39 
 40    for ( i = 0; i < count; i++ )
 41       geopti_var( pvar++ );
 42 }
 43 
 44 void STDCALL ge_getused( uint id )
 45 {
 46    puint     ptr, end;
 47    povmbcode bcode;
 48    povmtype  ptype;
 49    pvmobj    pvmo;
 50    uint      cmd, i, k, count = 0;
 51 
 52    if ( id < KERNEL_COUNT || optiused[ id ] )
 53       return;
 54    optiused[ id ] = 1;
 55    pvmo = ( pvmobj )PCMD( id );
 56 
 57    if ( pvmo->type == OVM_BYTECODE )
 58    {  
 59       bcode = ( povmbcode )pvmo;
 60       geopti_var( bcode->vmf.ret );
 61       geopti_varlist( bcode->vmf.params, bcode->vmf.parcount );
 62 
 63       for ( i = 0; i < bcode->setcount; i++ )
 64          count += bcode->sets[i].count;
 65       geopti_varlist( bcode->vars, count );
 66 
 67       ptr = ( puint )bcode->vmf.func;
 68       if ( !ptr )
 69          return;
 70 
 71       end = ( puint )( ( pubyte )ptr + bcode->bcsize );
 72       while ( ptr < end )
 73       {
 74          cmd = *ptr++;
 75          if ( cmd < CNop || cmd >= CNop + STACK_COUNT )
 76          {
 77             if ( cmd >= KERNEL_COUNT )
 78                ge_getused( cmd );
 79             continue;
 80          }
 81 
 82          switch ( cmd )
 83          {
 84             case CQwload:
 85                ptr += 2;
 86                break;
 87             case CDwload:
 88                ptr++;
 89                break;
 90             case CDwsload:
 91                i = *ptr++;
 92                for ( k = 0; k < i; k++ )
 93                   ge_getused( ptr[k] & 0xFFFFFF );
 94                ptr += i;
 95                break;
 96             case CAsm:
 97                i = *ptr++;
 98                ptr += i;
 99                break;
100             case CResload:
101             case CCmdload:
102             case CPtrglobal:
103                ge_getused( *ptr++ );
104                break;
105             case CDatasize:
106                i = *ptr++;
107                ptr += ( i >> 2 ) + ( i & 3 ? 1 : 0 );
108                break;
109             default:
110                switch ( shifts[ cmd - CNop ] )
111                {
112                   case SH1_3:
113                   case SH2_3:
114                      ptr++;
115                   case SHN1_2:
116                   case SH0_2:
117                   case SH1_2:
118                      ptr++;
119                      break;
120                }
121          }
122       }
123    }
124    if ( pvmo->type == OVM_EXFUNC )
125    {
126       geopti_var( (( povmfunc )pvmo)->vmf.ret );
127       geopti_varlist( (( povmfunc )pvmo)->vmf.params, 
128                       (( povmfunc )pvmo)->vmf.parcount );
129    
130       if ( pvmo->flag & GHEX_IMPORT )
131          ge_getused( (( povmfunc )pvmo)->import );
132    }
133    if ( pvmo->type == OVM_TYPE )
134    {
135       ptype = ( povmtype )pvmo;
136 
137       if ( pvmo->flag & GHTY_INHERIT )
138          ge_getused( ptype->inherit );
139 
140       if ( pvmo->flag & GHTY_INDEX )
141       {
142          ge_getused( ptype->index.type );
143          ge_getused( ptype->index.oftype );
144       }
145       if ( pvmo->flag & GHTY_INITDEL )
146       {
147          ge_getused( ptype->ftype[ FTYPE_INIT ] );
148          ge_getused( ptype->ftype[ FTYPE_DELETE ] );
149       }
150       if ( pvmo->flag & GHTY_EXTFUNC )
151       {
152          ge_getused( ptype->ftype[ FTYPE_OFTYPE ] );
153          ge_getused( ptype->ftype[ FTYPE_COLLECTION ] );
154       }
155       if ( pvmo->flag & GHTY_ARRAY )
156       {
157          i = 0;
158          while ( ptype->ftype[ FTYPE_ARRAY + i ] )
159             i++;
160          ge_getused( i == 1 ? ptype->ftype[ FTYPE_ARRAY ] : i );
161          if ( i > 1 )
162             for ( k = 0; k < i; k++ )
163                ge_getused( ptype->ftype[ FTYPE_ARRAY + k ] );
164       }
165       geopti_varlist( ptype->children, ptype->count );
166    }
167    if ( pvmo->type == OVM_GLOBAL )
168       geopti_var( (( povmglobal )pvmo)->type );
169 }
170 
171 void STDCALL ge_optimize( void )
172 {
173    uint i, count, main = 0;
174    pvmobj pvmo;
175    pubyte cur;
176    
177    count = arr_count( &_vm.objtbl );
178    // Deletes ALIAS and DEFINE
179    for ( i = KERNEL_COUNT; i < count ; i++ )
180    {
181       pvmo = ( pvmobj )PCMD( i );
182       if ( pvmo->flag & GHRT_SKIP )
183          continue;
184       switch ( pvmo->type )
185       {
186          case OVM_DEFINE:
187             if ( _compile->popti->flag & OPTI_DEFINE )
188                pvmo->flag |= GHRT_SKIP;
189             break;
190          case OVM_ALIAS:
191             pvmo->flag |= GHRT_SKIP;
192             break;
193       }
194    }
195    if ( !( _compile->popti->flag & OPTI_AVOID ))
196       return;
197    optiused = mem_allocz( count * sizeof( uint ));
198    for ( i = KERNEL_COUNT; i < count; i++ )
199    {
200       pvmo = ( pvmobj )PCMD( i );
201 
202       if ( pvmo->name )
203       {
204          cur = _compile->popti->avoidon;
205          while ( *cur )
206          {
207             if ( ptr_wildcardignore( pvmo->name, cur ))
208             {
209                ge_getused( i );
210                break;
211             }
212             cur += mem_len( cur ) + 1;
213          }
214       }
215 
216       if ( pvmo->type == OVM_BYTECODE || pvmo->type == OVM_EXFUNC )
217          if ( pvmo->flag & GHBC_ENTRY )
218             ge_getused( i );
219          else
220             if ( pvmo->flag & GHBC_MAIN )
221                if ( _compile->popti->flag & OPTI_MAIN )
222                   main = i;
223                else
224                   ge_getused( i );
225    }
226    if ( main )
227       ge_getused( main );
228 
229    for ( i = KERNEL_COUNT; i < count ; i++ )
230    {
231       pvmo = ( pvmobj )PCMD( i );
232       if ( !optiused[ i ] )
233          pvmo->flag |= GHRT_SKIP;
234    }
235 
236    mem_free( optiused );
237 }
238 
239 #endif
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