2.9BSD - /usr/src/cmd/pcc/cgram.c

   1: # define NAME 2
   2: # define STRING 3
   3: # define ICON 4
   4: # define FCON 5
   5: # define PLUS 6
   6: # define MINUS 8
   7: # define MUL 11
   8: # define AND 14
   9: # define OR 17
  10: # define ER 19
  11: # define QUEST 21
  12: # define COLON 22
  13: # define ANDAND 23
  14: # define OROR 24
  15: # define ASOP 25
  16: # define RELOP 26
  17: # define EQUOP 27
  18: # define DIVOP 28
  19: # define SHIFTOP 29
  20: # define INCOP 30
  21: # define UNOP 31
  22: # define STROP 32
  23: # define TYPE 33
  24: # define CLASS 34
  25: # define STRUCT 35
  26: # define RETURN 36
  27: # define GOTO 37
  28: # define IF 38
  29: # define ELSE 39
  30: # define SWITCH 40
  31: # define BREAK 41
  32: # define CONTINUE 42
  33: # define WHILE 43
  34: # define DO 44
  35: # define FOR 45
  36: # define DEFAULT 46
  37: # define CASE 47
  38: # define SIZEOF 48
  39: # define ENUM 49
  40: # define LP 50
  41: # define RP 51
  42: # define LC 52
  43: # define RC 53
  44: # define LB 54
  45: # define RB 55
  46: # define CM 56
  47: # define SM 57
  48: # define ASSIGN 58
  49: 
  50: # line 108 "/usr/src/cmd/mip/cgram.y"
  51: # include "mfile1"
  52: #define yyclearin yychar = -1
  53: #define yyerrok yyerrflag = 0
  54: extern int yychar;
  55: extern short yyerrflag;
  56: #ifndef YYMAXDEPTH
  57: #define YYMAXDEPTH 150
  58: #endif
  59: YYSTYPE yylval, yyval;
  60: 
  61: # line 127 "/usr/src/cmd/mip/cgram.y"
  62:     static int fake = 0;
  63:     static char fakename[NCHNAM+1];
  64: # define YYERRCODE 256
  65: 
  66: # line 779 "/usr/src/cmd/mip/cgram.y"
  67: 
  68: 
  69: NODE *
  70: mkty( t, d, s ) unsigned t; {
  71:     return( block( TYPE, NIL, NIL, t, d, s ) );
  72:     }
  73: 
  74: NODE *
  75: bdty( op, p, v ) NODE *p; {
  76:     register NODE *q;
  77: 
  78:     q = block( op, p, NIL, INT, 0, INT );
  79: 
  80:     switch( op ){
  81: 
  82:     case UNARY MUL:
  83:     case UNARY CALL:
  84:         break;
  85: 
  86:     case LB:
  87:         q->right = bcon(v);
  88:         break;
  89: 
  90:     case NAME:
  91:         q->rval = v;
  92:         break;
  93: 
  94:     default:
  95:         cerror( "bad bdty" );
  96:         }
  97: 
  98:     return( q );
  99:     }
 100: 
 101: dstash( n ){ /* put n into the dimension table */
 102:     if( curdim >= DIMTABSZ-1 ){
 103:         cerror( "dimension table overflow");
 104:         }
 105:     dimtab[ curdim++ ] = n;
 106:     }
 107: 
 108: savebc() {
 109:     if( psavbc > & asavbc[BCSZ-4 ] ){
 110:         cerror( "whiles, fors, etc. too deeply nested");
 111:         }
 112:     *psavbc++ = brklab;
 113:     *psavbc++ = contlab;
 114:     *psavbc++ = flostat;
 115:     *psavbc++ = swx;
 116:     flostat = 0;
 117:     }
 118: 
 119: resetbc(mask){
 120: 
 121:     swx = *--psavbc;
 122:     flostat = *--psavbc | (flostat&mask);
 123:     contlab = *--psavbc;
 124:     brklab = *--psavbc;
 125: 
 126:     }
 127: 
 128: addcase(p) NODE *p; { /* add case to switch */
 129: 
 130:     p = optim( p );  /* change enum to ints */
 131:     if( p->op != ICON ){
 132:         uerror( "non-constant case expression");
 133:         return;
 134:         }
 135:     if( swp == swtab ){
 136:         uerror( "case not in switch");
 137:         return;
 138:         }
 139:     if( swp >= &swtab[SWITSZ] ){
 140:         cerror( "switch table overflow");
 141:         }
 142:     swp->sval = p->lval;
 143:     deflab( swp->slab = getlab() );
 144:     ++swp;
 145:     tfree(p);
 146:     }
 147: 
 148: adddef(){ /* add default case to switch */
 149:     if( swtab[swx].slab >= 0 ){
 150:         uerror( "duplicate default in switch");
 151:         return;
 152:         }
 153:     if( swp == swtab ){
 154:         uerror( "default not inside switch");
 155:         return;
 156:         }
 157:     deflab( swtab[swx].slab = getlab() );
 158:     }
 159: 
 160: swstart(){
 161:     /* begin a switch block */
 162:     if( swp >= &swtab[SWITSZ] ){
 163:         cerror( "switch table overflow");
 164:         }
 165:     swx = swp - swtab;
 166:     swp->slab = -1;
 167:     ++swp;
 168:     }
 169: 
 170: swend(){ /* end a switch block */
 171: 
 172:     register struct sw *swbeg, *p, *q, *r, *r1;
 173:     CONSZ temp;
 174:     int tempi;
 175: 
 176:     swbeg = &swtab[swx+1];
 177: 
 178:     /* sort */
 179: 
 180:     r1 = swbeg;
 181:     r = swp-1;
 182: 
 183:     while( swbeg < r ){
 184:         /* bubble largest to end */
 185:         for( q=swbeg; q<r; ++q ){
 186:             if( q->sval > (q+1)->sval ){
 187:                 /* swap */
 188:                 r1 = q+1;
 189:                 temp = q->sval;
 190:                 q->sval = r1->sval;
 191:                 r1->sval = temp;
 192:                 tempi = q->slab;
 193:                 q->slab = r1->slab;
 194:                 r1->slab = tempi;
 195:                 }
 196:             }
 197:         r = r1;
 198:         r1 = swbeg;
 199:         }
 200: 
 201:     /* it is now sorted */
 202: 
 203:     for( p = swbeg+1; p<swp; ++p ){
 204:         if( p->sval == (p-1)->sval ){
 205:             uerror( "duplicate case in switch, %d", tempi=p->sval );
 206:             return;
 207:             }
 208:         }
 209: 
 210:     genswitch( swbeg-1, swp-swbeg );
 211:     swp = swbeg-1;
 212:     }
 213: short yyexca[] ={
 214: -1, 1,
 215:     0, -1,
 216:     2, 21,
 217:     11, 21,
 218:     50, 21,
 219:     57, 21,
 220:     -2, 0,
 221: -1, 19,
 222:     56, 78,
 223:     57, 78,
 224:     -2, 7,
 225: -1, 24,
 226:     56, 77,
 227:     57, 77,
 228:     -2, 75,
 229: -1, 32,
 230:     52, 43,
 231:     -2, 41,
 232: -1, 34,
 233:     52, 35,
 234:     -2, 33,
 235:     };
 236: # define YYNPROD 179
 237: # define YYLAST 1170
 238: short yyact[]={
 239: 
 240:  229,  24, 263, 249,  87,  85,  86,  26,  26,  78,
 241:  227, 128,  76,  26,  75,  77,  21,  21,  10,   9,
 242:   14,  96,  21,  40,  42, 127,  26,  94,  94,  98,
 243:   91,  80,  79,  18,  16,  21,  90, 239, 240, 244,
 244:   64, 248, 237, 238, 245, 246, 247, 251, 250,  81,
 245:   73,  82, 194, 106, 228,  22,  22,  93, 241, 143,
 246:   26,  22, 160,  10,   9,  14, 108,  57, 225,  21,
 247:  230,  54, 272,  20,  22, 129, 271,   8,  50,  16,
 248:   92,  17, 106, 144, 148,  28,  19,  36, 257,  72,
 249:  304, 136, 137, 138, 139, 140, 141,   6, 152, 203,
 250:   36,  35,  41,  43, 303, 298,  93, 287,  22,  55,
 251:  267, 266, 162, 163, 164, 166, 168, 170, 172, 174,
 252:  175, 177, 179, 181, 182, 183, 184, 185, 132, 161,
 253:  134, 129, 101,  99, 189, 154,  89, 198, 187, 157,
 254:  100, 159, 197, 144, 152,  68,  97, 281, 135, 186,
 255:   69, 254, 133,  38,  67, 256, 188,  39, 219, 104,
 256:  145, 151, 110, 107,  71, 156, 204,  55, 205,  38,
 257:  206,  47, 207,  39, 208,  48, 153, 209,  63, 210,
 258:  219, 211, 253, 249,  87,  85,  86, 213, 129,  78,
 259:  155, 150,  76,  33, 200,  77,  47,  66, 223, 214,
 260:   48,  93, 191,  46,  47,  26, 293, 218,  48,  31,
 261:  215,  80,  79, 252,  21, 285, 196, 239, 240, 244,
 262:  145, 248, 237, 238, 245, 246, 247, 251, 250,  81,
 263:  224,  82, 218, 106, 196, 226, 264, 278, 241, 217,
 264:  269,   4, 259, 260, 261, 262, 192, 265, 221, 222,
 265:   70, 279,  45,  22, 273, 195, 201, 242,  62, 294,
 266:  255,  95,  95, 282, 277, 149, 276,  27,  10,   9,
 267:   14, 275, 274, 195, 220, 288, 289, 264, 291, 290,
 268:   27, 149, 100,  51,  16, 284, 105, 283,   9, 114,
 269:   52, 115,  30, 280, 117, 300, 295, 119, 270, 264,
 270:  120, 301, 121,  10, 124,  14, 122, 123, 125, 111,
 271:  118, 113, 116, 114,  27, 115, 190,   7, 117,  16,
 272:  117,  65,  58, 109,  34, 114,  29, 115,  32, 243,
 273:  117, 103, 130, 119, 302, 113, 120, 113, 121, 112,
 274:  124, 126, 122, 123, 125, 111, 118, 113, 116,  49,
 275:   25,  59,  44, 199,  88,  53,  56, 158, 202, 102,
 276:   61, 114,  60, 115,  37,   3, 117,   2, 147, 119,
 277:  299,  83, 120,  11, 121, 112, 124, 126, 122, 123,
 278:  125, 111, 118, 113, 116,  12,   5,  23,  13,  15,
 279:  236, 234, 235, 233, 231, 232,   1, 114,   0, 115,
 280:    0,   0, 117,   0,   0, 119, 297,   0, 120,   0,
 281:  121, 112, 124, 126, 122, 123, 125, 111, 118, 113,
 282:  116,   0,   0,   0,   0,   0,   0,   0,   0,   0,
 283:  114,   0, 115,   0,   0, 117,   0, 242,   0,   0,
 284:    0,   0, 296, 114,   0, 115,   0, 112, 117, 126,
 285:  111, 119, 113, 116, 120,   0, 121,   0, 124, 292,
 286:  122, 123, 125, 111, 118, 113, 116, 114,   0, 115,
 287:    0,   0, 117,   0,   0, 119,   0,   0, 120,   0,
 288:  121,   0, 124,   0, 122, 123, 125, 111, 118, 113,
 289:  116,   0, 114, 112, 115, 126,   0, 117,   0, 114,
 290:  119, 115,   0, 120, 117, 121,   0, 124,   0, 122,
 291:  123, 125, 111, 118, 113, 116,   0, 112, 286, 126,
 292:    0, 113, 116,   0,   0,   0,   0,   0,   0,   0,
 293:    0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
 294:    0,   0, 112, 258, 126, 114,   0, 115,   0,   0,
 295:  117,   0,   0, 119,   0,   0, 120,   0, 121,   0,
 296:  124,   0, 122, 123, 125, 111, 118, 113, 116, 114,
 297:    0, 115,   0,   0, 117,   0,   0, 119,   0,   0,
 298:  120,   0, 121,   0, 124, 212, 122, 123, 125, 111,
 299:  118, 113, 116,   0, 216, 112,   0, 126,   0,   0,
 300:    0,   0,   0,   0,   0, 114,   0, 115,   0, 114,
 301:  117, 115,   0, 119, 117,   0, 120, 119, 121, 112,
 302:  124, 126, 122, 123, 125, 111, 118, 113, 116, 111,
 303:  118, 113, 116,   0,   0,   0,   0,   0,   0,   0,
 304:    0, 114,   0, 115,   0,   0, 117,   0,   0, 119,
 305:  193,   0, 120,   0, 121, 112, 124, 126, 122, 123,
 306:  125, 111, 118, 113, 116, 114,   0, 115,   0,   0,
 307:  117,   0,   0, 119,   0,   0, 120,   0, 121,   0,
 308:  124,   0, 122, 123, 125, 111, 118, 113, 116,   0,
 309:    0, 112,   0, 126,  84,  87,  85,  86,   0,   0,
 310:   78,   0,   0,  76,   0,   0,  77,  84,  87,  85,
 311:   86,   0,   0,  78,   0,   0,  76, 126,   0,  77,
 312:    0,   0,  80,  79,   0,   0,   0,   0,   0,   0,
 313:    0,   0,   0,   0,   0,  80,  79,   0,   0,   0,
 314:   81,   0,  82,   0,   0,  84,  87,  85,  86,   0,
 315:  180,  78,   0,  81,  76,  82,   0,  77,  84,  87,
 316:   85,  86,   0, 178,  78,   0,   0,  76,   0,   0,
 317:   77,   0,   0,  80,  79,   0,   0,   0,   0,   0,
 318:    0,   0,   0,   0,   0,   0,  80,  79,   0,   0,
 319:    0,  81,   0,  82,   0,   0,  84,  87,  85,  86,
 320:    0, 176,  78,   0,  81,  76,  82,   0,  77,  84,
 321:   87,  85,  86,   0, 173,  78,   0,   0,  76,   0,
 322:    0,  77,   0,   0,  80,  79,   0,   0,   0,   0,
 323:    0,   0,   0,   0,   0,   0,   0,  80,  79,   0,
 324:    0,   0,  81,   0,  82,   0,   0,  84,  87,  85,
 325:   86,   0, 171,  78,   0,  81,  76,  82,   0,  77,
 326:   84,  87,  85,  86,   0, 169,  78,   0,   0,  76,
 327:    0,   0,  77,   0,   0,  80,  79,   0,   0,   0,
 328:    0,   0,   0,   0,   0,   0,   0,   0,  80,  79,
 329:    0,   0,   0,  81,   0,  82,   0,   0,  84,  87,
 330:   85,  86,   0, 167,  78,   0,  81,  76,  82,   0,
 331:   77,  84,  87,  85,  86,   0, 165,  78,   0,   0,
 332:   76,   0,   0,  77,   0,   0,  80,  79, 114,   0,
 333:  115,   0,   0, 117,   0,   0, 119,   0,   0,  80,
 334:   79, 121,   0,   0,  81,   0,  82,   0, 111, 118,
 335:  113, 116,   0, 268,   0,   0,   0,  81,   0,  82,
 336:    0, 131,  84,  87,  85,  86,   0,   0,  78,   0,
 337:    0,  76,   0,   0,  77,  84,  87,  85,  86,   0,
 338:    0,  78,   0,   0,  76,   0,   0,  77,   0,   0,
 339:   80,  79,   0,  10,   0,  14,   0,   0,   0,   0,
 340:    0,   0,   0,  80,  79,   0,   0,   0,  81,  16,
 341:   82,   0,   0,   0,   0,  84,  87,  85,  86,   0,
 342:    0,  81,   0,  82,   0,  74,  84,  87,  85,  86,
 343:    0,   0,  78,   0,   0,  76,   0,   0,  77,  84,
 344:   87,  85,  86,  80,  79,  78,   0,   0,  76,   0,
 345:    0,  77,   0,   0,  80,  79,   0,   0,   0,   0,
 346:    0,  81,   0,  82,   0,   0,   0,  80,  79,   0,
 347:    0, 114,  81, 115,  82, 146, 117,  84,  87,  85,
 348:   86,   0,   0,  78,   0,  81,  76,  82,   0,  77,
 349:    0, 111, 118, 113, 116,   0, 114,   0, 115,   0,
 350:    0, 117,   0,   0, 119,  80,  79, 120,   0, 121,
 351:    0, 124,   0, 122, 123,   0, 111, 118, 113, 116,
 352:    0,   0, 114,  81, 115, 142,   0, 117,   0,   0,
 353:  119,   0,   0, 120,   0, 121,   0,   0,   0, 122,
 354:    0,   0, 111, 118, 113, 116, 114,   0, 115,   0,
 355:    0, 117,   0,   0, 119,   0,   0, 120,   0, 121,
 356:    0,   0,   0,   0,   0,   0, 111, 118, 113, 116 };
 357: short yypact[]={
 358: 
 359: -1000, -15,-1000,-1000,-1000,  24,-1000, 270, 254,-1000,
 360:  259,-1000,-1000, 157, 326, 141, 322,-1000,  44, 119,
 361: -1000, 203, 203, 201, 121,  20, 233,-1000,-1000,-1000,
 362:  257, 270,-1000, 320,-1000,-1000,-1000,-1000, 207, 123,
 363:  121, 119, 146, 103,  94,-1000,-1000, 199, 109, 973,
 364: -1000,-1000,-1000,  79,-1000,   6,  90,-1000, -29,  58,
 365: -1000,  30,-1000,-1000, 108,1037,-1000,-1000,-1000, 321,
 366: -1000,-1000, 107, 659, 909,  98,1037,1037,1037,1037,
 367: 1037,1075, 960,1024, 231,-1000,-1000,-1000, 138, 270,
 368:   88,-1000, 119, 154,-1000,-1000, 137, 320,-1000,-1000,
 369:  119,-1000,-1000,-1000,   5,  72,-1000,-1000, 659,-1000,
 370: -1000,1037,1037, 858, 845, 807, 794, 756,1037, 743,
 371:  705, 692,1037,1037,1037,1037,1037,  82,-1000, 659,
 372:  909,-1000,-1000,1037, 314,-1000,  98,  98,  98,  98,
 373:   98,  98, 960, 195, 599, 205,-1000,  86, 659,-1000,
 374: -1000,-1000,-1000,-1000,-1000,-1000,-1000,-1000, 235,  42,
 375: -1000,-1000, 493, 659,-1000,1037, 309,1037, 309,1037,
 376:  307,1037,-1000,1037, 424,1065,1037, 922,1037, 603,
 377: 1037,1140,1116, 563, 659, 659, 134, 909,  82, 539,
 378: -1000, 188,1037,-1000, 126, 223, 205,1037,-1000,   6,
 379: -1000,  11,   1,-1000, 659, 659, 659, 659, 659, 659,
 380:  659, 659,1037,-1000,-1000, 129,-1000,1013,  98,  96,
 381: -1000, 104, 126, 659,-1000,-1000,  31,-1000,-1000, 486,
 382: -1000, 181, 181, 181, 181,1037, 181,  54,  53, 896,
 383:  296,-1000,  19, 181, 222, 221,-1000, 216, 214, 215,
 384: 1037, 271,1090,-1000,-1000,  92, 213,-1000,-1000, 248,
 385: -1000,-1000, 242, 164, 635,-1000,-1000,-1000,-1000, 461,
 386:   50,-1000,-1000,-1000,1037,1037,1037,1037,-1000, 437,
 387: -1000,-1000, 155,-1000, 209, 181,-1000,-1000, 391, 355,
 388:   48, 319,-1000,-1000,1037,-1000,-1000,-1000,1037,-1000,
 389:  283,  47,  33,-1000,-1000 };
 390: short yypgo[]={
 391: 
 392:    0, 396,  40, 395, 394, 393, 392, 391, 390, 389,
 393:  388, 387,   0,   2,  14,  97, 386,  77, 385, 373,
 394:   59,  52, 371,  30,  80,   1, 368, 367, 365,  33,
 395:  364, 362, 360,  70, 359, 358,  10, 357,  36, 317,
 396:  356,  21,  67, 355, 354,  71, 353, 352,  73, 351,
 397:  350, 349,  25,  11, 332, 331, 329, 321 };
 398: short yyr1[]={
 399: 
 400:    0,   1,   1,  27,  27,  28,  28,  30,  28,  31,
 401:   32,  32,  35,  35,  37,  37,  37,  34,  34,  34,
 402:   16,  16,  15,  15,  15,  15,  39,  17,  17,  17,
 403:   17,  17,  18,  18,   9,   9,  40,  40,  42,  42,
 404:   19,  19,  10,  10,  43,  43,  45,  45,  38,  46,
 405:   38,  23,  23,  23,  23,  23,  25,  25,  25,  25,
 406:   25,  25,  24,  24,  24,  24,  24,  24,  24,  11,
 407:   47,  47,  29,  49,  29,  50,  50,  48,  48,  48,
 408:   48,  52,  52,  53,  53,  41,  41,  44,  44,  51,
 409:   51,  54,  33,  55,  36,  36,  36,  36,  36,  36,
 410:   36,  36,  36,  36,  36,  36,  36,  36,  36,  36,
 411:   36,  56,  56,  56,   7,   4,   3,   5,   6,   8,
 412:   57,   2,  13,  13,  26,  26,  12,  12,  12,  12,
 413:   12,  12,  12,  12,  12,  12,  12,  12,  12,  12,
 414:   12,  12,  12,  12,  12,  12,  12,  12,  12,  12,
 415:   12,  14,  14,  14,  14,  14,  14,  14,  14,  14,
 416:   14,  14,  14,  14,  14,  14,  14,  14,  14,  20,
 417:   21,  21,  21,  21,  21,  21,  21,  22,  22 };
 418: short yyr2[]={
 419: 
 420:    0,   2,   0,   1,   1,   2,   3,   0,   4,   2,
 421:    2,   0,   2,   0,   3,   4,   0,   3,   2,   2,
 422:    1,   0,   2,   2,   1,   1,   1,   1,   2,   3,
 423:    1,   1,   5,   2,   1,   2,   1,   3,   1,   3,
 424:    5,   2,   1,   2,   1,   3,   2,   1,   1,   0,
 425:    4,   1,   1,   3,   2,   1,   2,   3,   3,   4,
 426:    1,   3,   2,   3,   3,   4,   3,   3,   2,   2,
 427:    1,   3,   1,   0,   4,   1,   1,   1,   1,   3,
 428:    6,   1,   3,   1,   4,   0,   1,   0,   1,   0,
 429:    1,   1,   4,   1,   2,   1,   2,   2,   2,   7,
 430:    4,   2,   2,   2,   2,   3,   3,   1,   2,   2,
 431:    2,   2,   3,   2,   1,   4,   3,   4,   6,   4,
 432:    0,   2,   1,   0,   1,   3,   3,   3,   3,   3,
 433:    3,   3,   3,   3,   3,   3,   3,   3,   3,   4,
 434:    4,   4,   4,   4,   4,   4,   4,   5,   3,   3,
 435:    1,   2,   2,   2,   2,   2,   2,   2,   4,   4,
 436:    4,   2,   3,   3,   1,   1,   1,   1,   3,   2,
 437:    0,   2,   5,   2,   3,   4,   3,   2,   2 };
 438: short yychk[]={
 439: 
 440: -1000,  -1, -27, -28, 256, -16, -15, -39, -17,  34,
 441:   33, -19, -18, -10,  35,  -9,  49,  57, -29, -24,
 442:  -48,  11,  50, -11, -25, -50,   2, 256, -17, -39,
 443:   33,  52,   2,  52,   2,  57,  56, -30,  50,  54,
 444:  -25, -24, -25, -24, -47,  51,   2,  50,  54, -51,
 445:   58,  50,  33, -43, -45, -17, -40, -42,   2, -49,
 446:  -31, -32,  51,  55,  -2, -57,  51,  51,  51,  56,
 447:   51,  55,  -2, -12,  52, -14,  11,  14,   8,  31,
 448:   30,  48,  50, -22,   2,   4,   5,   3, -44,  57,
 449:  -38, -23, -24, -25,  22, 256, -41,  56,  58, -48,
 450:  -24, -33, -34, -55, -15, 256,  52,  55, -12,   2,
 451:   55,  26,  56,  28,   6,   8,  29,  11,  27,  14,
 452:   17,  19,  23,  24,  21,  25,  58, -52, -53, -12,
 453:  -54,  52,  30,  54,  32,  50, -14, -14, -14, -14,
 454:  -14, -14,  50, -20, -12, -17,  51, -26, -12,  50,
 455:   53, -45,  56,  22,  -2,  53, -42,  -2, -37, -38,
 456:   57,  57, -12, -12, -12,  58, -12,  58, -12,  58,
 457:  -12,  58, -12,  58, -12, -12,  58, -12,  58, -12,
 458:   58, -12, -12, -12, -12, -12, -41,  56, -52, -12,
 459:    2, -20,  51,  51, -21,  50,  11,  56,  51, -46,
 460:   -2, -15, -35,  57, -12, -12, -12, -12, -12, -12,
 461:  -12, -12,  22,  53, -53, -41,  55,  51, -14,  54,
 462:   51, -21, -21, -12, -23,  57, -29, -36,  53, -12,
 463:  -33,  -4,  -3,  -5,  -7,  -6,  -8,  41,  42,  36,
 464:   37,  57, 256, -56,  38,  43,  44,  45,  40,   2,
 465:   47,  46, -12,  53,  55,  -2,  51,  57,  57, -36,
 466:  -36, -36, -36, -13, -12, -36,  57,  57,  57, -12,
 467:    2,  57,  53, -36,  50,  50,  50,  50,  22, -12,
 468:   22,  55,  50,  39,  43,  51,  57,  57, -12, -12,
 469:  -13, -12,  22,  51,  50, -36,  51,  51,  57,  51,
 470:  -12, -13,  51,  57,  57 };
 471: short yydef[]={
 472: 
 473:    2,  -2,   1,   3,   4,   0,  20,  24,  25,  26,
 474:   27,  30,  31,   0,  42,   0,  34,   5,   0,  -2,
 475:   72,   0,   0,   0,  -2,  89,  60,  76,  22,  23,
 476:   28,   0,  -2,   0,  -2,   6,  73,  11,   0, 120,
 477:   56,  62,   0,   0,   0,  68,  70,   0, 120,   0,
 478:   90,  69,  29,  87,  44,  47,  85,  36,  38,   0,
 479:    8,   0,  63,  64,   0,   0,  61,  66,  67,   0,
 480:   57,  58,   0,  79,   0, 150,   0,   0,   0,   0,
 481:    0,   0,   0,   0, 164, 165, 166, 167,   0,  88,
 482:   46,  48,  51,  52, 120,  55,   0,  86, 120,  74,
 483:   78,   9,  10,  16,   0,   0,  93,  65, 121,  71,
 484:   59,   0,   0,   0,   0,   0,   0,   0,   0,   0,
 485:    0,   0,   0,   0,   0,   0,   0,  85,  81,  83,
 486:    0,  91, 151,   0,   0, 178, 152, 153, 154, 155,
 487:  156, 157,   0,   0,   0, 170, 161,   0, 124, 177,
 488:   40,  45,  49, 120,  54,  32,  37,  39,  13,   0,
 489:   18,  19, 126, 127, 128,   0, 129,   0, 130,   0,
 490:  131,   0, 132,   0, 133, 134,   0, 135,   0, 136,
 491:    0, 137, 138,   0, 148, 149,   0,  86,  85,   0,
 492:  163,   0,   0, 168, 169, 170, 170,   0, 162,   0,
 493:   53,   0,   0,  17, 140, 141, 142, 143, 139, 144,
 494:  145, 146,   0,  80,  82,   0, 160, 159, 158, 120,
 495:  171,   0, 173, 125,  50,  14,   0,  12,  92,   0,
 496:   95,   0,   0,   0,   0, 123,   0,   0,   0,   0,
 497:    0, 107,   0,   0,   0,   0, 114,   0,   0, 164,
 498:    0,   0, 147,  84, 174,   0, 176,  15,  94,  96,
 499:   97,  98,   0,   0, 122, 101, 102, 103, 104,   0,
 500:    0, 108, 109, 110,   0,   0, 123,   0, 111,   0,
 501:  113, 175,   0, 116,   0,   0, 105, 106,   0,   0,
 502:    0,   0, 112, 172,   0, 100, 115, 117, 123, 119,
 503:    0,   0,   0, 118,  99 };
 504: #
 505: # define YYFLAG -1000
 506: # define YYERROR goto yyerrlab
 507: # define YYACCEPT return(0)
 508: # define YYABORT return(1)
 509: 
 510: /*	parser for yacc output	*/
 511: 
 512: int yydebug = 0; /* 1 for debugging */
 513: YYSTYPE yyv[YYMAXDEPTH]; /* where the values are stored */
 514: int yychar = -1; /* current input token number */
 515: int yynerrs = 0;  /* number of errors */
 516: short yyerrflag = 0;  /* error recovery flag */
 517: 
 518: yyparse() {
 519: 
 520:     short yys[YYMAXDEPTH];
 521:     short yyj, yym;
 522:     register YYSTYPE *yypvt;
 523:     register short yystate, *yyps, yyn;
 524:     register YYSTYPE *yypv;
 525:     register short *yyxi;
 526: 
 527:     yystate = 0;
 528:     yychar = -1;
 529:     yynerrs = 0;
 530:     yyerrflag = 0;
 531:     yyps= &yys[-1];
 532:     yypv= &yyv[-1];
 533: 
 534:  yystack:    /* put a state and value onto the stack */
 535: 
 536:     if( yydebug  ) printf( "state %d, char 0%o\n", yystate, yychar );
 537:         if( ++yyps> &yys[YYMAXDEPTH] ) { yyerror( "yacc stack overflow" ); return(1); }
 538:         *yyps = yystate;
 539:         ++yypv;
 540:         *yypv = yyval;
 541: 
 542:  yynewstate:
 543: 
 544:     yyn = yypact[yystate];
 545: 
 546:     if( yyn<= YYFLAG ) goto yydefault; /* simple state */
 547: 
 548:     if( yychar<0 ) if( (yychar=yylex())<0 ) yychar=0;
 549:     if( (yyn += yychar)<0 || yyn >= YYLAST ) goto yydefault;
 550: 
 551:     if( yychk[ yyn=yyact[ yyn ] ] == yychar ){ /* valid shift */
 552:         yychar = -1;
 553:         yyval = yylval;
 554:         yystate = yyn;
 555:         if( yyerrflag > 0 ) --yyerrflag;
 556:         goto yystack;
 557:         }
 558: 
 559:  yydefault:
 560:     /* default state action */
 561: 
 562:     if( (yyn=yydef[yystate]) == -2 ) {
 563:         if( yychar<0 ) if( (yychar=yylex())<0 ) yychar = 0;
 564:         /* look through exception table */
 565: 
 566:         for( yyxi=yyexca; (*yyxi!= (-1)) || (yyxi[1]!=yystate) ; yyxi += 2 ) ; /* VOID */
 567: 
 568:         while( *(yyxi+=2) >= 0 ){
 569:             if( *yyxi == yychar ) break;
 570:             }
 571:         if( (yyn = yyxi[1]) < 0 ) return(0);   /* accept */
 572:         }
 573: 
 574:     if( yyn == 0 ){ /* error */
 575:         /* error ... attempt to resume parsing */
 576: 
 577:         switch( yyerrflag ){
 578: 
 579:         case 0:   /* brand new error */
 580: 
 581:             yyerror( "syntax error" );
 582:         yyerrlab:
 583:             ++yynerrs;
 584: 
 585:         case 1:
 586:         case 2: /* incompletely recovered error ... try again */
 587: 
 588:             yyerrflag = 3;
 589: 
 590:             /* find a state where "error" is a legal shift action */
 591: 
 592:             while ( yyps >= yys ) {
 593:                yyn = yypact[*yyps] + YYERRCODE;
 594:                if( yyn>= 0 && yyn < YYLAST && yychk[yyact[yyn]] == YYERRCODE ){
 595:                   yystate = yyact[yyn];  /* simulate a shift of "error" */
 596:                   goto yystack;
 597:                   }
 598:                yyn = yypact[*yyps];
 599: 
 600:                /* the current yyps has no shift onn "error", pop stack */
 601: 
 602:                if( yydebug ) printf( "error recovery pops state %d, uncovers %d\n", *yyps, yyps[-1] );
 603:                --yyps;
 604:                --yypv;
 605:                }
 606: 
 607:             /* there is no state on the stack with an error shift ... abort */
 608: 
 609:     yyabort:
 610:             return(1);
 611: 
 612: 
 613:         case 3:  /* no shift yet; clobber input char */
 614: 
 615:             if( yydebug ) printf( "error recovery discards char %d\n", yychar );
 616: 
 617:             if( yychar == 0 ) goto yyabort; /* don't discard EOF, quit */
 618:             yychar = -1;
 619:             goto yynewstate;   /* try again in the same state */
 620: 
 621:             }
 622: 
 623:         }
 624: 
 625:     /* reduction by production yyn */
 626: 
 627:         if( yydebug ) printf("reduce %d\n",yyn);
 628:         yyps -= yyr2[yyn];
 629:         yypvt = yypv;
 630:         yypv -= yyr2[yyn];
 631:         yyval = yypv[1];
 632:         yym=yyn;
 633:             /* consult goto table to find next state */
 634:         yyn = yyr1[yyn];
 635:         yyj = yypgo[yyn] + *yyps + 1;
 636:         if( yyj>=YYLAST || yychk[ yystate = yyact[yyj] ] != -yyn ) yystate = yyact[yypgo[yyn]];
 637:         switch(yym){
 638: 
 639: case 2:
 640: # line 133 "/usr/src/cmd/mip/cgram.y"
 641: ftnend(); break;
 642: case 3:
 643: # line 136 "/usr/src/cmd/mip/cgram.y"
 644: { curclass = SNULL;  blevel = 0; } break;
 645: case 4:
 646: # line 138 "/usr/src/cmd/mip/cgram.y"
 647: { curclass = SNULL;  blevel = 0; } break;
 648: case 5:
 649: # line 142 "/usr/src/cmd/mip/cgram.y"
 650: {  yypvt[-1].nodep->op = FREE; } break;
 651: case 6:
 652: # line 144 "/usr/src/cmd/mip/cgram.y"
 653: {  yypvt[-2].nodep->op = FREE; } break;
 654: case 7:
 655: # line 145 "/usr/src/cmd/mip/cgram.y"
 656: {
 657:                 defid( tymerge(yypvt[-1].nodep,yypvt[-0].nodep), curclass==STATIC?STATIC:EXTDEF );
 658:                 } break;
 659: case 8:
 660: # line 148 "/usr/src/cmd/mip/cgram.y"
 661: {
 662:                 if( blevel ) cerror( "function level error" );
 663:                 if( reached ) retstat |= NRETVAL;
 664:                 yypvt[-3].nodep->op = FREE;
 665:                 ftnend();
 666:                 } break;
 667: case 11:
 668: # line 159 "/usr/src/cmd/mip/cgram.y"
 669: {  blevel = 1; } break;
 670: case 13:
 671: # line 164 "/usr/src/cmd/mip/cgram.y"
 672: {  bccode();
 673:                 locctr(PROG);
 674:                 } break;
 675: case 14:
 676: # line 170 "/usr/src/cmd/mip/cgram.y"
 677: {  yypvt[-1].nodep->op = FREE; } break;
 678: case 15:
 679: # line 172 "/usr/src/cmd/mip/cgram.y"
 680: {  yypvt[-2].nodep->op = FREE; } break;
 681: case 17:
 682: # line 176 "/usr/src/cmd/mip/cgram.y"
 683: { curclass = SNULL;  yypvt[-2].nodep->op = FREE; } break;
 684: case 18:
 685: # line 178 "/usr/src/cmd/mip/cgram.y"
 686: { curclass = SNULL;  yypvt[-1].nodep->op = FREE; } break;
 687: case 19:
 688: # line 180 "/usr/src/cmd/mip/cgram.y"
 689: {  curclass = SNULL; } break;
 690: case 21:
 691: # line 184 "/usr/src/cmd/mip/cgram.y"
 692: {  yyval.nodep = mkty(INT,0,INT);  curclass = SNULL; } break;
 693: case 22:
 694: # line 187 "/usr/src/cmd/mip/cgram.y"
 695: {  yyval.nodep = yypvt[-0].nodep; } break;
 696: case 24:
 697: # line 190 "/usr/src/cmd/mip/cgram.y"
 698: {  yyval.nodep = mkty(INT,0,INT); } break;
 699: case 25:
 700: # line 192 "/usr/src/cmd/mip/cgram.y"
 701: { curclass = SNULL ; } break;
 702: case 26:
 703: # line 197 "/usr/src/cmd/mip/cgram.y"
 704: {  curclass = yypvt[-0].intval; } break;
 705: case 28:
 706: # line 202 "/usr/src/cmd/mip/cgram.y"
 707: {  yypvt[-1].nodep->type = types( yypvt[-1].nodep->type, yypvt[-0].nodep->type, UNDEF );
 708:                 yypvt[-0].nodep->op = FREE;
 709:                 } break;
 710: case 29:
 711: # line 206 "/usr/src/cmd/mip/cgram.y"
 712: {  yypvt[-2].nodep->type = types( yypvt[-2].nodep->type, yypvt[-1].nodep->type, yypvt[-0].nodep->type );
 713:                 yypvt[-1].nodep->op = yypvt[-0].nodep->op = FREE;
 714:                 } break;
 715: case 32:
 716: # line 214 "/usr/src/cmd/mip/cgram.y"
 717: { yyval.nodep = dclstruct(yypvt[-4].intval); } break;
 718: case 33:
 719: # line 216 "/usr/src/cmd/mip/cgram.y"
 720: {  yyval.nodep = rstruct(yypvt[-0].intval,0);  stwart = instruct; } break;
 721: case 34:
 722: # line 220 "/usr/src/cmd/mip/cgram.y"
 723: {  yyval.intval = bstruct(-1,0); } break;
 724: case 35:
 725: # line 222 "/usr/src/cmd/mip/cgram.y"
 726: {  yyval.intval = bstruct(yypvt[-0].intval,0); } break;
 727: case 38:
 728: # line 230 "/usr/src/cmd/mip/cgram.y"
 729: {  moedef( yypvt[-0].intval ); } break;
 730: case 39:
 731: # line 232 "/usr/src/cmd/mip/cgram.y"
 732: {  strucoff = yypvt[-0].intval;  moedef( yypvt[-2].intval ); } break;
 733: case 40:
 734: # line 236 "/usr/src/cmd/mip/cgram.y"
 735: { yyval.nodep = dclstruct(yypvt[-4].intval);  } break;
 736: case 41:
 737: # line 238 "/usr/src/cmd/mip/cgram.y"
 738: {  yyval.nodep = rstruct(yypvt[-0].intval,yypvt[-1].intval); } break;
 739: case 42:
 740: # line 242 "/usr/src/cmd/mip/cgram.y"
 741: {  yyval.intval = bstruct(-1,yypvt[-0].intval);  stwart=0; } break;
 742: case 43:
 743: # line 244 "/usr/src/cmd/mip/cgram.y"
 744: {  yyval.intval = bstruct(yypvt[-0].intval,yypvt[-1].intval);  stwart=0;  } break;
 745: case 46:
 746: # line 252 "/usr/src/cmd/mip/cgram.y"
 747: { curclass = SNULL;  stwart=0; yypvt[-1].nodep->op = FREE; } break;
 748: case 47:
 749: # line 254 "/usr/src/cmd/mip/cgram.y"
 750: {  if( curclass != MOU ){
 751:                 curclass = SNULL;
 752:                 }
 753:                 else {
 754:                 sprintf( fakename, "$%dFAKE", fake++ );
 755:                 defid( tymerge(yypvt[-0].nodep, bdty(NAME,NIL,lookup( fakename, SMOS ))), curclass );
 756:                 }
 757:                 stwart = 0;
 758:                 yypvt[-0].nodep->op = FREE;
 759:                 } break;
 760: case 48:
 761: # line 268 "/usr/src/cmd/mip/cgram.y"
 762: { defid( tymerge(yypvt[-1].nodep,yypvt[-0].nodep), curclass);  stwart = instruct; } break;
 763: case 49:
 764: # line 269 "/usr/src/cmd/mip/cgram.y"
 765: {yyval.nodep=yypvt[-2].nodep;} break;
 766: case 50:
 767: # line 270 "/usr/src/cmd/mip/cgram.y"
 768: { defid( tymerge(yypvt[-4].nodep,yypvt[-0].nodep), curclass);  stwart = instruct; } break;
 769: case 53:
 770: # line 276 "/usr/src/cmd/mip/cgram.y"
 771: {  if( !(instruct&INSTRUCT) ) uerror( "field outside of structure" );
 772:                 if( yypvt[-0].intval<0 || yypvt[-0].intval >= FIELD ){
 773:                 uerror( "illegal field size" );
 774:                 yypvt[-0].intval = 1;
 775:                 }
 776:                 defid( tymerge(yypvt[-3].nodep,yypvt[-2].nodep), FIELD|yypvt[-0].intval );
 777:                 yyval.nodep = NIL;
 778:                 } break;
 779: case 54:
 780: # line 286 "/usr/src/cmd/mip/cgram.y"
 781: {  if( !(instruct&INSTRUCT) ) uerror( "field outside of structure" );
 782:                 falloc( stab, yypvt[-0].intval, -1, yypvt[-2].nodep );  /* alignment or hole */
 783:                 yyval.nodep = NIL;
 784:                 } break;
 785: case 55:
 786: # line 291 "/usr/src/cmd/mip/cgram.y"
 787: {  yyval.nodep = NIL; } break;
 788: case 56:
 789: # line 296 "/usr/src/cmd/mip/cgram.y"
 790: {  umul:
 791:                 yyval.nodep = bdty( UNARY MUL, yypvt[-0].nodep, 0 ); } break;
 792: case 57:
 793: # line 299 "/usr/src/cmd/mip/cgram.y"
 794: {  uftn:
 795:                 yyval.nodep = bdty( UNARY CALL, yypvt[-2].nodep, 0 );  } break;
 796: case 58:
 797: # line 302 "/usr/src/cmd/mip/cgram.y"
 798: {  uary:
 799:                 yyval.nodep = bdty( LB, yypvt[-2].nodep, 0 );  } break;
 800: case 59:
 801: # line 305 "/usr/src/cmd/mip/cgram.y"
 802: {  bary:
 803:                 if( (int)yypvt[-1].intval <= 0 ) werror( "zero or negative subscript" );
 804:                 yyval.nodep = bdty( LB, yypvt[-3].nodep, yypvt[-1].intval );  } break;
 805: case 60:
 806: # line 309 "/usr/src/cmd/mip/cgram.y"
 807: {  yyval.nodep = bdty( NAME, NIL, yypvt[-0].intval );  } break;
 808: case 61:
 809: # line 311 "/usr/src/cmd/mip/cgram.y"
 810: { yyval.nodep=yypvt[-1].nodep; } break;
 811: case 62:
 812: # line 314 "/usr/src/cmd/mip/cgram.y"
 813: {  goto umul; } break;
 814: case 63:
 815: # line 316 "/usr/src/cmd/mip/cgram.y"
 816: {  goto uftn; } break;
 817: case 64:
 818: # line 318 "/usr/src/cmd/mip/cgram.y"
 819: {  goto uary; } break;
 820: case 65:
 821: # line 320 "/usr/src/cmd/mip/cgram.y"
 822: {  goto bary; } break;
 823: case 66:
 824: # line 322 "/usr/src/cmd/mip/cgram.y"
 825: { yyval.nodep = yypvt[-1].nodep; } break;
 826: case 67:
 827: # line 324 "/usr/src/cmd/mip/cgram.y"
 828: {
 829:                 if( blevel!=0 ) uerror("function declaration in bad context");
 830:                 yyval.nodep = bdty( UNARY CALL, bdty(NAME,NIL,yypvt[-2].intval), 0 );
 831:                 stwart = 0;
 832:                 } break;
 833: case 68:
 834: # line 330 "/usr/src/cmd/mip/cgram.y"
 835: {
 836:                 yyval.nodep = bdty( UNARY CALL, bdty(NAME,NIL,yypvt[-1].intval), 0 );
 837:                 stwart = 0;
 838:                 } break;
 839: case 69:
 840: # line 337 "/usr/src/cmd/mip/cgram.y"
 841: {
 842:                 /* turn off typedefs for argument names */
 843:                 stwart = SEENAME;
 844:                 } break;
 845: case 70:
 846: # line 344 "/usr/src/cmd/mip/cgram.y"
 847: { ftnarg( yypvt[-0].intval );  stwart = SEENAME; } break;
 848: case 71:
 849: # line 346 "/usr/src/cmd/mip/cgram.y"
 850: { ftnarg( yypvt[-0].intval );  stwart = SEENAME; } break;
 851: case 73:
 852: # line 351 "/usr/src/cmd/mip/cgram.y"
 853: {yyval.nodep=yypvt[-2].nodep;} break;
 854: case 75:
 855: # line 355 "/usr/src/cmd/mip/cgram.y"
 856: {  defid( yypvt[-0].nodep = tymerge(yypvt[-1].nodep,yypvt[-0].nodep), curclass);
 857:                 beginit(yypvt[-0].nodep->rval);
 858:                 } break;
 859: case 77:
 860: # line 362 "/usr/src/cmd/mip/cgram.y"
 861: {  nidcl( tymerge(yypvt[-1].nodep,yypvt[-0].nodep) ); } break;
 862: case 78:
 863: # line 364 "/usr/src/cmd/mip/cgram.y"
 864: {  defid( tymerge(yypvt[-1].nodep,yypvt[-0].nodep), uclass(curclass) );
 865:             } break;
 866: case 79:
 867: # line 368 "/usr/src/cmd/mip/cgram.y"
 868: {  doinit( yypvt[-0].nodep );
 869:                 endinit(); } break;
 870: case 80:
 871: # line 371 "/usr/src/cmd/mip/cgram.y"
 872: {  endinit(); } break;
 873: case 83:
 874: # line 380 "/usr/src/cmd/mip/cgram.y"
 875: {  doinit( yypvt[-0].nodep ); } break;
 876: case 84:
 877: # line 382 "/usr/src/cmd/mip/cgram.y"
 878: {  irbrace(); } break;
 879: case 89:
 880: # line 394 "/usr/src/cmd/mip/cgram.y"
 881: {  werror( "old-fashioned initialization: use =" ); } break;
 882: case 91:
 883: # line 399 "/usr/src/cmd/mip/cgram.y"
 884: {  ilbrace(); } break;
 885: case 92:
 886: # line 405 "/usr/src/cmd/mip/cgram.y"
 887: {  --blevel;
 888:                 if( blevel == 1 ) blevel = 0;
 889:                 clearst( blevel );
 890:                 checkst( blevel );
 891:                 autooff = *--psavbc;
 892:                 regvar = *--psavbc;
 893:                 } break;
 894: case 93:
 895: # line 415 "/usr/src/cmd/mip/cgram.y"
 896: {  if( blevel == 1 ) dclargs();
 897:                 ++blevel;
 898:                 if( psavbc > &asavbc[BCSZ-2] ) cerror( "nesting too deep" );
 899:                 *psavbc++ = regvar;
 900:                 *psavbc++ = autooff;
 901:                 } break;
 902: case 94:
 903: # line 424 "/usr/src/cmd/mip/cgram.y"
 904: { ecomp( yypvt[-1].nodep ); } break;
 905: case 96:
 906: # line 427 "/usr/src/cmd/mip/cgram.y"
 907: { deflab(yypvt[-1].intval);
 908:                reached = 1;
 909:                } break;
 910: case 97:
 911: # line 431 "/usr/src/cmd/mip/cgram.y"
 912: {  if( yypvt[-1].intval != NOLAB ){
 913:                 deflab( yypvt[-1].intval );
 914:                 reached = 1;
 915:                 }
 916:                 } break;
 917: case 98:
 918: # line 437 "/usr/src/cmd/mip/cgram.y"
 919: {  branch(  contlab );
 920:                 deflab( brklab );
 921:                 if( (flostat&FBRK) || !(flostat&FLOOP)) reached = 1;
 922:                 else reached = 0;
 923:                 resetbc(0);
 924:                 } break;
 925: case 99:
 926: # line 444 "/usr/src/cmd/mip/cgram.y"
 927: {  deflab( contlab );
 928:                 if( flostat & FCONT ) reached = 1;
 929:                 ecomp( buildtree( CBRANCH, buildtree( NOT, yypvt[-2].nodep, NIL ), bcon( yypvt[-6].intval ) ) );
 930:                 deflab( brklab );
 931:                 reached = 1;
 932:                 resetbc(0);
 933:                 } break;
 934: case 100:
 935: # line 452 "/usr/src/cmd/mip/cgram.y"
 936: {  deflab( contlab );
 937:                 if( flostat&FCONT ) reached = 1;
 938:                 if( yypvt[-2].nodep ) ecomp( yypvt[-2].nodep );
 939:                 branch( yypvt[-3].intval );
 940:                 deflab( brklab );
 941:                 if( (flostat&FBRK) || !(flostat&FLOOP) ) reached = 1;
 942:                 else reached = 0;
 943:                 resetbc(0);
 944:                 } break;
 945: case 101:
 946: # line 462 "/usr/src/cmd/mip/cgram.y"
 947: {  if( reached ) branch( brklab );
 948:                 deflab( yypvt[-1].intval );
 949:                swend();
 950:                 deflab(brklab);
 951:                 if( (flostat&FBRK) || !(flostat&FDEF) ) reached = 1;
 952:                 resetbc(FCONT);
 953:                 } break;
 954: case 102:
 955: # line 470 "/usr/src/cmd/mip/cgram.y"
 956: {  if( brklab == NOLAB ) uerror( "illegal break");
 957:                 else if(reached) branch( brklab );
 958:                 flostat |= FBRK;
 959:                 if( brkflag ) goto rch;
 960:                 reached = 0;
 961:                 } break;
 962: case 103:
 963: # line 477 "/usr/src/cmd/mip/cgram.y"
 964: {  if( contlab == NOLAB ) uerror( "illegal continue");
 965:                 else branch( contlab );
 966:                 flostat |= FCONT;
 967:                 goto rch;
 968:                 } break;
 969: case 104:
 970: # line 483 "/usr/src/cmd/mip/cgram.y"
 971: {  retstat |= NRETVAL;
 972:                 branch( retlab );
 973:             rch:
 974:                 if( !reached ) werror( "statement not reached");
 975:                 reached = 0;
 976:                 } break;
 977: case 105:
 978: # line 490 "/usr/src/cmd/mip/cgram.y"
 979: {  register NODE *temp;
 980:                 idname = curftn;
 981:                 temp = buildtree( NAME, NIL, NIL );
 982:                 temp->type = DECREF( temp->type );
 983:                 temp = buildtree( RETURN, temp, yypvt[-1].nodep );
 984:                 /* now, we have the type of the RHS correct */
 985:                 temp->left->op = FREE;
 986:                 temp->op = FREE;
 987:                 ecomp( buildtree( FORCE, temp->right, NIL ) );
 988:                 retstat |= RETVAL;
 989:                 branch( retlab );
 990:                 reached = 0;
 991:                 } break;
 992: case 106:
 993: # line 504 "/usr/src/cmd/mip/cgram.y"
 994: {  register NODE *q;
 995:                 q = block( FREE, NIL, NIL, INT|ARY, 0, INT );
 996:                 q->rval = idname = yypvt[-1].intval;
 997:                 defid( q, ULABEL );
 998:                 stab[idname].suse = -lineno;
 999:                 branch( stab[idname].offset );
1000:                 goto rch;
1001:                 } break;
1002: case 111:
1003: # line 518 "/usr/src/cmd/mip/cgram.y"
1004: {  register NODE *q;
1005:                 q = block( FREE, NIL, NIL, INT|ARY, 0, LABEL );
1006:                 q->rval = yypvt[-1].intval;
1007:                 defid( q, LABEL );
1008:                 reached = 1;
1009:                 } break;
1010: case 112:
1011: # line 525 "/usr/src/cmd/mip/cgram.y"
1012: {  addcase(yypvt[-1].nodep);
1013:                 reached = 1;
1014:                 } break;
1015: case 113:
1016: # line 529 "/usr/src/cmd/mip/cgram.y"
1017: {  reached = 1;
1018:                 adddef();
1019:                 flostat |= FDEF;
1020:                 } break;
1021: case 114:
1022: # line 535 "/usr/src/cmd/mip/cgram.y"
1023: {  savebc();
1024:                 if( !reached ) werror( "loop not entered at top");
1025:                 brklab = getlab();
1026:                 contlab = getlab();
1027:                 deflab( yyval.intval = getlab() );
1028:                 reached = 1;
1029:                 } break;
1030: case 115:
1031: # line 544 "/usr/src/cmd/mip/cgram.y"
1032: {  ecomp( buildtree( CBRANCH, yypvt[-1].nodep, bcon( yyval.intval=getlab()) ) ) ;
1033:                 reached = 1;
1034:                 } break;
1035: case 116:
1036: # line 549 "/usr/src/cmd/mip/cgram.y"
1037: {  if( reached ) branch( yyval.intval = getlab() );
1038:                 else yyval.intval = NOLAB;
1039:                 deflab( yypvt[-2].intval );
1040:                 reached = 1;
1041:                 } break;
1042: case 117:
1043: # line 557 "/usr/src/cmd/mip/cgram.y"
1044: {  savebc();
1045:                 if( !reached ) werror( "loop not entered at top");
1046:                 if( yypvt[-1].nodep->op == ICON && yypvt[-1].nodep->lval != 0 ) flostat = FLOOP;
1047:                 deflab( contlab = getlab() );
1048:                 reached = 1;
1049:                 brklab = getlab();
1050:                 if( flostat == FLOOP ) tfree( yypvt[-1].nodep );
1051:                 else ecomp( buildtree( CBRANCH, yypvt[-1].nodep, bcon( brklab) ) );
1052:                 } break;
1053: case 118:
1054: # line 568 "/usr/src/cmd/mip/cgram.y"
1055: {  if( yypvt[-3].nodep ) ecomp( yypvt[-3].nodep );
1056:                 else if( !reached ) werror( "loop not entered at top");
1057:                 savebc();
1058:                 contlab = getlab();
1059:                 brklab = getlab();
1060:                 deflab( yyval.intval = getlab() );
1061:                 reached = 1;
1062:                 if( yypvt[-1].nodep ) ecomp( buildtree( CBRANCH, yypvt[-1].nodep, bcon( brklab) ) );
1063:                 else flostat |= FLOOP;
1064:                 } break;
1065: case 119:
1066: # line 580 "/usr/src/cmd/mip/cgram.y"
1067: {  savebc();
1068:                 brklab = getlab();
1069:                 ecomp( buildtree( FORCE, yypvt[-1].nodep, NIL ) );
1070:                 branch( yyval.intval = getlab() );
1071:                 swstart();
1072:                 reached = 0;
1073:                 } break;
1074: case 120:
1075: # line 589 "/usr/src/cmd/mip/cgram.y"
1076: { yyval.intval=instruct; stwart=instruct=0; } break;
1077: case 121:
1078: # line 591 "/usr/src/cmd/mip/cgram.y"
1079: {  yyval.intval = icons( yypvt[-0].nodep );  instruct=yypvt[-1].intval; } break;
1080: case 123:
1081: # line 595 "/usr/src/cmd/mip/cgram.y"
1082: { yyval.nodep=0; } break;
1083: case 125:
1084: # line 600 "/usr/src/cmd/mip/cgram.y"
1085: {  goto bop; } break;
1086: case 126:
1087: # line 604 "/usr/src/cmd/mip/cgram.y"
1088: {
1089:             preconf:
1090:                 if( yychar==RELOP||yychar==EQUOP||yychar==AND||yychar==OR||yychar==ER ){
1091:                 precplaint:
1092:                 if( hflag ) werror( "precedence confusion possible: parenthesize!" );
1093:                 }
1094:             bop:
1095:                 yyval.nodep = buildtree( yypvt[-1].intval, yypvt[-2].nodep, yypvt[-0].nodep );
1096:                 } break;
1097: case 127:
1098: # line 614 "/usr/src/cmd/mip/cgram.y"
1099: {  yypvt[-1].intval = COMOP;
1100:                 goto bop;
1101:                 } break;
1102: case 128:
1103: # line 618 "/usr/src/cmd/mip/cgram.y"
1104: {  goto bop; } break;
1105: case 129:
1106: # line 620 "/usr/src/cmd/mip/cgram.y"
1107: {  if(yychar==SHIFTOP) goto precplaint; else goto bop; } break;
1108: case 130:
1109: # line 622 "/usr/src/cmd/mip/cgram.y"
1110: {  if(yychar==SHIFTOP ) goto precplaint; else goto bop; } break;
1111: case 131:
1112: # line 624 "/usr/src/cmd/mip/cgram.y"
1113: {  if(yychar==PLUS||yychar==MINUS) goto precplaint; else goto bop; } break;
1114: case 132:
1115: # line 626 "/usr/src/cmd/mip/cgram.y"
1116: {  goto bop; } break;
1117: case 133:
1118: # line 628 "/usr/src/cmd/mip/cgram.y"
1119: {  goto preconf; } break;
1120: case 134:
1121: # line 630 "/usr/src/cmd/mip/cgram.y"
1122: {  if( yychar==RELOP||yychar==EQUOP ) goto preconf;  else goto bop; } break;
1123: case 135:
1124: # line 632 "/usr/src/cmd/mip/cgram.y"
1125: {  if(yychar==RELOP||yychar==EQUOP) goto preconf; else goto bop; } break;
1126: case 136:
1127: # line 634 "/usr/src/cmd/mip/cgram.y"
1128: {  if(yychar==RELOP||yychar==EQUOP) goto preconf; else goto bop; } break;
1129: case 137:
1130: # line 636 "/usr/src/cmd/mip/cgram.y"
1131: {  goto bop; } break;
1132: case 138:
1133: # line 638 "/usr/src/cmd/mip/cgram.y"
1134: {  goto bop; } break;
1135: case 139:
1136: # line 640 "/usr/src/cmd/mip/cgram.y"
1137: {  abop:
1138:                 yyval.nodep = buildtree( ASG yypvt[-2].intval, yypvt[-3].nodep, yypvt[-0].nodep );
1139:                 } break;
1140: case 140:
1141: # line 644 "/usr/src/cmd/mip/cgram.y"
1142: {  goto abop; } break;
1143: case 141:
1144: # line 646 "/usr/src/cmd/mip/cgram.y"
1145: {  goto abop; } break;
1146: case 142:
1147: # line 648 "/usr/src/cmd/mip/cgram.y"
1148: {  goto abop; } break;
1149: case 143:
1150: # line 650 "/usr/src/cmd/mip/cgram.y"
1151: {  goto abop; } break;
1152: case 144:
1153: # line 652 "/usr/src/cmd/mip/cgram.y"
1154: {  goto abop; } break;
1155: case 145:
1156: # line 654 "/usr/src/cmd/mip/cgram.y"
1157: {  goto abop; } break;
1158: case 146:
1159: # line 656 "/usr/src/cmd/mip/cgram.y"
1160: {  goto abop; } break;
1161: case 147:
1162: # line 658 "/usr/src/cmd/mip/cgram.y"
1163: {  yyval.nodep=buildtree(QUEST, yypvt[-4].nodep, buildtree( COLON, yypvt[-2].nodep, yypvt[-0].nodep ) );
1164:                 } break;
1165: case 148:
1166: # line 661 "/usr/src/cmd/mip/cgram.y"
1167: {  werror( "old-fashioned assignment operator" );  goto bop; } break;
1168: case 149:
1169: # line 663 "/usr/src/cmd/mip/cgram.y"
1170: {  goto bop; } break;
1171: case 151:
1172: # line 667 "/usr/src/cmd/mip/cgram.y"
1173: {  yyval.nodep = buildtree( yypvt[-0].intval, yypvt[-1].nodep, bcon(1) ); } break;
1174: case 152:
1175: # line 669 "/usr/src/cmd/mip/cgram.y"
1176: { ubop:
1177:                 yyval.nodep = buildtree( UNARY yypvt[-1].intval, yypvt[-0].nodep, NIL );
1178:                 } break;
1179: case 153:
1180: # line 673 "/usr/src/cmd/mip/cgram.y"
1181: {  if( ISFTN(yypvt[-0].nodep->type) || ISARY(yypvt[-0].nodep->type) ){
1182:                 werror( "& before array or function: ignored" );
1183:                 yyval.nodep = yypvt[-0].nodep;
1184:                 }
1185:                 else goto ubop;
1186:                 } break;
1187: case 154:
1188: # line 680 "/usr/src/cmd/mip/cgram.y"
1189: {  goto ubop; } break;
1190: case 155:
1191: # line 682 "/usr/src/cmd/mip/cgram.y"
1192: {
1193:                 yyval.nodep = buildtree( yypvt[-1].intval, yypvt[-0].nodep, NIL );
1194:                 } break;
1195: case 156:
1196: # line 686 "/usr/src/cmd/mip/cgram.y"
1197: {  yyval.nodep = buildtree( yypvt[-1].intval==INCR ? ASG PLUS : ASG MINUS,
1198:                         yypvt[-0].nodep,
1199:                         bcon(1)  );
1200:                 } break;
1201: case 157:
1202: # line 691 "/usr/src/cmd/mip/cgram.y"
1203: {  yyval.nodep = doszof( yypvt[-0].nodep ); } break;
1204: case 158:
1205: # line 693 "/usr/src/cmd/mip/cgram.y"
1206: {  yyval.nodep = buildtree( CAST, yypvt[-2].nodep, yypvt[-0].nodep );
1207:                 yyval.nodep->left->op = FREE;
1208:                 yyval.nodep->op = FREE;
1209:                 yyval.nodep = yyval.nodep->right;
1210:                 } break;
1211: case 159:
1212: # line 699 "/usr/src/cmd/mip/cgram.y"
1213: {  yyval.nodep = doszof( yypvt[-1].nodep ); } break;
1214: case 160:
1215: # line 701 "/usr/src/cmd/mip/cgram.y"
1216: {  yyval.nodep = buildtree( UNARY MUL, buildtree( PLUS, yypvt[-3].nodep, yypvt[-1].nodep ), NIL ); } break;
1217: case 161:
1218: # line 703 "/usr/src/cmd/mip/cgram.y"
1219: {  yyval.nodep=buildtree(UNARY CALL,yypvt[-1].nodep,NIL); } break;
1220: case 162:
1221: # line 705 "/usr/src/cmd/mip/cgram.y"
1222: {  yyval.nodep=buildtree(CALL,yypvt[-2].nodep,yypvt[-1].nodep); } break;
1223: case 163:
1224: # line 707 "/usr/src/cmd/mip/cgram.y"
1225: {  if( yypvt[-1].intval == DOT ){
1226:                 yypvt[-2].nodep = buildtree( UNARY AND, yypvt[-2].nodep, NIL );
1227:                 }
1228:                 idname = yypvt[-0].intval;
1229:                 yyval.nodep = buildtree( STREF, yypvt[-2].nodep, buildtree( NAME, NIL, NIL ) );
1230:                 } break;
1231: case 164:
1232: # line 714 "/usr/src/cmd/mip/cgram.y"
1233: {  idname = yypvt[-0].intval;
1234:                 /* recognize identifiers in initializations */
1235:                 if( blevel==0 && stab[idname].stype == UNDEF ) {
1236:                 register NODE *q;
1237:                 werror( "undeclared initializer name %.8s", stab[idname].sname );
1238:                 q = block( FREE, NIL, NIL, INT, 0, INT );
1239:                 q->rval = idname;
1240:                 defid( q, EXTERN );
1241:                 }
1242:                 yyval.nodep=buildtree(NAME,NIL,NIL);
1243:                 stab[yypvt[-0].intval].suse = -lineno;
1244:             } break;
1245: case 165:
1246: # line 727 "/usr/src/cmd/mip/cgram.y"
1247: {  yyval.nodep=bcon(0);
1248:                 yyval.nodep->lval = lastcon;
1249:                 yyval.nodep->rval = NONAME;
1250:                 if( yypvt[-0].intval ) yyval.nodep->csiz = yyval.nodep->type = ctype(LONG);
1251:                 } break;
1252: case 166:
1253: # line 733 "/usr/src/cmd/mip/cgram.y"
1254: {  yyval.nodep=buildtree(FCON,NIL,NIL);
1255:                 yyval.nodep->dval = dcon;
1256:                 } break;
1257: case 167:
1258: # line 737 "/usr/src/cmd/mip/cgram.y"
1259: {  yyval.nodep = getstr(); /* get string contents */ } break;
1260: case 168:
1261: # line 739 "/usr/src/cmd/mip/cgram.y"
1262: { yyval.nodep=yypvt[-1].nodep; } break;
1263: case 169:
1264: # line 743 "/usr/src/cmd/mip/cgram.y"
1265: {
1266:             yyval.nodep = tymerge( yypvt[-1].nodep, yypvt[-0].nodep );
1267:             yyval.nodep->op = NAME;
1268:             yypvt[-1].nodep->op = FREE;
1269:             } break;
1270: case 170:
1271: # line 751 "/usr/src/cmd/mip/cgram.y"
1272: { yyval.nodep = bdty( NAME, NIL, -1 ); } break;
1273: case 171:
1274: # line 753 "/usr/src/cmd/mip/cgram.y"
1275: { yyval.nodep = bdty( UNARY CALL, bdty(NAME,NIL,-1),0); } break;
1276: case 172:
1277: # line 755 "/usr/src/cmd/mip/cgram.y"
1278: {  yyval.nodep = bdty( UNARY CALL, yypvt[-3].nodep, 0 ); } break;
1279: case 173:
1280: # line 757 "/usr/src/cmd/mip/cgram.y"
1281: {  goto umul; } break;
1282: case 174:
1283: # line 759 "/usr/src/cmd/mip/cgram.y"
1284: {  goto uary; } break;
1285: case 175:
1286: # line 761 "/usr/src/cmd/mip/cgram.y"
1287: {  goto bary;  } break;
1288: case 176:
1289: # line 763 "/usr/src/cmd/mip/cgram.y"
1290: { yyval.nodep = yypvt[-1].nodep; } break;
1291: case 177:
1292: # line 767 "/usr/src/cmd/mip/cgram.y"
1293: {  if( stab[yypvt[-1].intval].stype == UNDEF ){
1294:                 register NODE *q;
1295:                 q = block( FREE, NIL, NIL, FTN|INT, 0, INT );
1296:                 q->rval = yypvt[-1].intval;
1297:                 defid( q, EXTERN );
1298:                 }
1299:                 idname = yypvt[-1].intval;
1300:                 yyval.nodep=buildtree(NAME,NIL,NIL);
1301:                 stab[idname].suse = -lineno;
1302:             } break;
1303:         }
1304:         goto yystack;  /* stack new state and value */
1305: 
1306:     }

Defined functions

Defined variables

Defined macros