* Updated header: Added 2006. Changed address of FSF. Changed email
[cacao.git] / src / vm / jit / parse.c
index 16b0bd68d91d315ee5fb74eba4fca804b951c086..9078b7b038fa9537b9f35f9db885319017b6cfd2 100644 (file)
@@ -1,9 +1,9 @@
-/* vm/jit/parse.c - parser for JavaVM to intermediate code translation
+/* src/vm/jit/parse.c - parser for JavaVM to intermediate code translation
 
-   Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
-   R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
-   C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
-   Institut f. Computersprachen - TU Wien
+   Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+   C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
+   E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
+   J. Wenninger, Institut f. Computersprachen - TU Wien
 
    This file is part of CACAO.
 
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA.
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.
 
-   Contact: cacao@complang.tuwien.ac.at
+   Contact: cacao@cacaojvm.org
 
    Author: Andreas Krall
 
    Changes: Carolyn Oates
             Edwin Steiner
             Joseph Wenninger
+            Christian Thalinger
 
-   $Id: parse.c 1967 2005-02-25 15:51:05Z carolyn $
+   $Id: parse.c 4357 2006-01-22 23:33:38Z twisti $
 
 */
 
 
+#include <assert.h>
 #include <string.h>
 
 #include "config.h"
-#include "types.h"
+
+#include "vm/types.h"
+
 #include "mm/memory.h"
 #include "native/native.h"
 #include "toolbox/logging.h"
 #include "vm/builtin.h"
 #include "vm/exceptions.h"
 #include "vm/global.h"
+#include "vm/linker.h"
 #include "vm/loader.h"
+#include "vm/resolve.h"
 #include "vm/options.h"
 #include "vm/statistics.h"
 #include "vm/stringlocal.h"
-#include "vm/tables.h"
+#include "vm/jit/asmpart.h"
 #include "vm/jit/jit.h"
 #include "vm/jit/parse.h"
+#include "vm/jit/patcher.h"
 #include "vm/jit/inline/parseRT.h"
+#include "vm/jit/inline/parseXTA.h"
 #include "vm/jit/inline/inline.h"
 #include "vm/jit/loop/loop.h"
 #include "vm/jit/inline/parseRTprint.h"
 
-bool DEBUG = false;
-bool DEBUG2 = false;
-bool DEBUG3 = false;
-bool DEBUG4 = false;  /*opcodes for parse.c*/
-
-
-/*INLINING*/
-#define debug_writebranch if (DEBUG2==true) printf("op:: %s i: %d label_index[i]: %d label_index=0x%p\n",opcode_names[opcode], i, label_index[i], (void *)label_index);
-#define debug_writebranch1
-
-
-/* function descriptor2typesL ***************************************************
-
-       decodes a already checked method descriptor. The parameter count, the
-       return type and the argument types are stored in the passed methodinfo.
-        gets and saves classptr for object ref.s
-
-*******************************************************************************/               
-
-classSetNode *descriptor2typesL(methodinfo *m)
-{
-       int debugInfo = 0;
-       int i;
-       u1 *types, *tptr;
-       int pcount, c;
-       char *utf_ptr;
-       classinfo** classtypes;
-       char *class; 
-       char *desc;
-       classSetNode *p=NULL;
-       if (debugInfo >= 1) {
-               printf("In descriptor2typesL >>>\t"); fflush(stdout);
-               utf_display(m->class->name); printf(".");
-               method_display(m);fflush(stdout);
-       }
-
-       pcount = 0;
-       desc =       MNEW (char, 256); 
-       types = DMNEW (u1, m->descriptor->blength); 
-       classtypes = MNEW (classinfo*, m->descriptor->blength+1);
-       m->returnclass = NULL;
-       tptr = types;
-       if (!(m->flags & ACC_STATIC)) {
-               *tptr++ = TYPE_ADR;
-               if (debugInfo >= 1) {
-                       printf("param #0 (this?) method class =");utf_display(m->class->name);printf("\n");
-               }
-               classtypes[pcount] = m->class;
-               p = addClassCone(p,  m->class);
-               pcount++;
-       }
-
-       utf_ptr = m->descriptor->text + 1;
-       strcpy (desc,utf_ptr);
-   
-       while ((c = *desc++) != ')') {
-               pcount++;
-               switch (c) {
-               case 'B':
-               case 'C':
-               case 'I':
-               case 'S':
-               case 'Z':  *tptr++ = TYPE_INT;
-                       break;
-               case 'J':  *tptr++ = TYPE_LNG;
-                       break;
-               case 'F':  *tptr++ = TYPE_FLT;
-                       break;
-               case 'D':  *tptr++ = TYPE_DBL;
-                       break;
-               case 'L':  *tptr++ = TYPE_ADR;
-                       /* get class string */
-                       class = strtok(desc,";");
-                       desc = strtok(NULL,"\0");
-                       /* get/save classinfo ptr */
-                       classtypes[pcount-1] = class_get(utf_new_char(class));
-                       p = addClassCone(p,  class_get(utf_new_char(class)));
-                       if (debugInfo >= 1) {
-                               printf("LParam#%i 's class type is: %s\n",pcount-1,class);fflush(stdout);
-                               printf("Lclasstypes[%i]=",pcount-1);fflush(stdout);
-                               utf_display(classtypes[pcount-1]->name);
-                       }
-                       break;
-               case '[':  *tptr++ = TYPE_ADR;
-                       while (c == '[')
-                               c = *desc++;
-                       /* get class string */
-                       if (c == 'L') {
-                               class = strtok(desc,";");
-                               desc = strtok(NULL,"\0");
-                               /* get/save classinfo ptr */
-                               classtypes[pcount-1] = class_get(utf_new_char(class));
-                               p= addClassCone(p,  class_get(utf_new_char(class)));
-                               if (debugInfo >= 1) {
-                                       printf("[Param#%i 's class type is: %s\n",pcount-1,class);
-                                       printf("[classtypes[%i]=",pcount-1);fflush(stdout);
-                                       utf_display(classtypes[pcount-1]->name);
-                                       printf("\n");
-                               }
-                       }
-                       else
-                               classtypes[pcount-1] = NULL;
-                       break;
-               default:   
-                       panic("Ill formed methodtype-descriptor");
-               }
-       }
-
-       /* compute return type */
-       switch (*desc++) {
-       case 'B':
-       case 'C':
-       case 'I':
-       case 'S':
-       case 'Z':  m->returntype = TYPE_INT;
-               break;
-       case 'J':  m->returntype = TYPE_LNG;
-               break;
-       case 'F':  m->returntype = TYPE_FLT;
-               break;
-       case 'D':  m->returntype = TYPE_DBL;
-               break;
-       case '[':
-               m->returntype = TYPE_ADR;
-               c = *desc;
-               while (c == '[') {
-                       c = *desc++;
-                       }
-               if (c != 'L') break;
-               c = *desc;
-               if (c == 'L')
-                       *(desc++); 
-       case 'L':  
-               m->returntype = TYPE_ADR;
-                         
-               /* get class string */
-               class = strtok(desc,";");
-               m->returnclass = class_get(utf_new_char(class));
-               if (m->returnclass == NULL) {
-                       printf("class=<%s>\t",class); fflush(stdout);
-                       panic ("return class not found");
-               }
-               break;
-       case 'V':  m->returntype = TYPE_VOID;
-               break;
-
-       default:   panic("Ill formed methodtype-descriptor-ReturnType");
-       }
-
-       m->paramcount = pcount;
-       m->paramtypes = types;
-       m->paramclass = classtypes;
-
-       if (debugInfo >=1) {
-               if (pcount > 0) {
-                       for (i=0; i< m->paramcount; i++) {
-                       if ((m->paramtypes[i] == TYPE_ADR) && (m->paramclass[i] != NULL)) {
-                                       printf("Param #%i is:\t",i);
-                                       utf_display(m->paramclass[i]->name);
-                                       printf("\n");
-                               }
-                       }
-               }
-               if ((m->returntype == TYPE_ADR) && (m->returnclass != NULL)) { 
-                       printf("\tReturn Type is:\t"); fflush(stdout);
-                       utf_display(m->returnclass->name);
-                       printf("\n");
-               }
-
-               printf("params2types: START  results in a set \n");
-               printf("param2types: A Set size=%i=\n",sizeOfSet(p));
-               printSet(p);
-       }
-
-       return p;
-}
-
-
-
-/* function descriptor2types ***************************************************
-
-       decodes a already checked method descriptor. The parameter count, the
-       return type and the argument types are stored in the passed methodinfo.
-
-*******************************************************************************/               
-
-void descriptor2types(methodinfo *m)
-{
-       u1 *types, *tptr;
-       int pcount, c;
-       char *utf_ptr;
-       pcount = 0;
-       types = DMNEW(u1, m->descriptor->blength); 
-       
-       tptr = types;
-       if (!(m->flags & ACC_STATIC)) {
-               *tptr++ = TYPE_ADR;
-               pcount++;
-       }
-
-       utf_ptr = m->descriptor->text + 1;
-   
-       while ((c = *utf_ptr++) != ')') {
-               pcount++;
-               switch (c) {
-               case 'B':
-               case 'C':
-               case 'I':
-               case 'S':
-               case 'Z':
-                       *tptr++ = TYPE_INT;
-                       break;
-               case 'J':
-                       *tptr++ = TYPE_LNG;
-                       break;
-               case 'F':
-                       *tptr++ = TYPE_FLT;
-                       break;
-               case 'D':
-                       *tptr++ = TYPE_DBL;
-                       break;
-               case 'L':
-                       *tptr++ = TYPE_ADR;
-                       while (*utf_ptr++ != ';');
-                       break;
-               case '[':
-                       *tptr++ = TYPE_ADR;
-                       while (c == '[')
-                               c = *utf_ptr++;
-                       if (c == 'L')
-                               while (*utf_ptr++ != ';') /* skip */;
-                       break;
-               default:
-                       panic("Ill formed methodtype-descriptor");
-               }
-       }
-
-       /* compute return type */
-
-       switch (*utf_ptr++) {
-       case 'B':
-       case 'C':
-       case 'I':
-       case 'S':
-       case 'Z':
-               m->returntype = TYPE_INT;
-               break;
-       case 'J':
-               m->returntype = TYPE_LNG;
-               break;
-       case 'F':
-               m->returntype = TYPE_FLT;
-               break;
-       case 'D':
-               m->returntype = TYPE_DBL;
-               break;
-       case '[':
-       case 'L':
-               m->returntype = TYPE_ADR;
-               break;
-       case 'V':
-               m->returntype = TYPE_VOID;
-               break;
-       default:
-               panic("Ill formed methodtype-descriptor");
-       }
-
-       m->paramcount = pcount;
-       m->paramtypes = types;
-}
-
-
-
 /*******************************************************************************
 
        function 'parse' scans the JavaVM code and generates intermediate code
@@ -342,51 +77,48 @@ void descriptor2types(methodinfo *m)
 
 *******************************************************************************/
 
-static exceptiontable* fillextable(methodinfo *m, 
-               exceptiontable* extable, exceptiontable *raw_extable, 
-                int exceptiontablelength, 
-               int *label_index, int *block_count, 
-               t_inlining_globals *inline_env)
+static exceptiontable * fillextable(methodinfo *m, 
+                                                                       exceptiontable *extable, 
+                                                                       exceptiontable *raw_extable, 
+                                                               int exceptiontablelength, 
+                                                                       int *label_index, 
+                                                                       int *block_count, 
+                                                                       t_inlining_globals *inline_env)
 {
        int b_count, p, src, insertBlock;
        
        if (exceptiontablelength == 0) 
                return extable;
 
-       /*if (m->exceptiontablelength > 0) {
-         METHINFOx(m);
-         printf("m->exceptiontablelength=%i\n",m->exceptiontablelength);
-         panic("exceptiontablelength > 0");
-         }*/
-
        b_count = *block_count;
 
        for (src = exceptiontablelength-1; src >=0; src--) {
-               /* printf("Excepiont table index: %d\n",i); */
                p = raw_extable[src].startpc;
                if (label_index != NULL) p = label_index[p];
                extable->startpc = p;
                bound_check(p);
                block_insert(p);
                
-/*** if (DEBUG==true){printf("---------------------block_inserted:b_count=%i m->basicblockindex[(p=%i)]=%i=%p\n",b_count,p,m->basicblockindex[(p)],m->basicblockindex[(p)]); 
-  fflush(stdout); } ***/   
                p = raw_extable[src].endpc; /* see JVM Spec 4.7.3 */
-               if (p <= raw_extable[src].startpc)
-                       panic("Invalid exception handler range");
+               if (p <= raw_extable[src].startpc) {
+                       *exceptionptr = new_verifyerror(inline_env->method,
+                               "Invalid exception handler range");
+                       return NULL;
+               }
 
                if (p >inline_env->method->jcodelength) {
-                       panic("Invalid exception handler end is after code end");
+                       *exceptionptr = new_verifyerror(inline_env->method,
+                               "Invalid exception handler end is after code end");
+                       return NULL;
                }
+
                if (p<inline_env->method->jcodelength) insertBlock=1; else insertBlock=0;
-                /*if (label_index !=NULL) printf("%s:translating endpc:%ld to %ld, label_index:%p\n",m->name->text,p,label_index[p],label_index); else
-                       printf("%s:fillextab: endpc:%ld\n",m->name->text,p);*/
                if (label_index != NULL) p = label_index[p];
                extable->endpc = p;
                bound_check1(p);
-               /*if (p < inline_env->method->jcodelength) {
-                       block_insert(p); }*/
-                if (insertBlock) block_insert(p);
+               /* if (p < inline_env->method->jcodelength) block_insert(p); */
+        if (insertBlock) 
+                       block_insert(p);
 
                p = raw_extable[src].handlerpc;
                if (label_index != NULL) p = label_index[p];
@@ -429,56 +161,17 @@ methodinfo *parse(methodinfo *m, codegendata *cd, t_inlining_globals *inline_env
        exceptiontable* nextex;     /* points next free entry in extable  */
        u1 *instructionstart;       /* 1 for pcs which are valid instr. starts    */
 
+       constant_classref  *cr;
+       constant_classref  *compr;
+       classinfo          *c;
+       builtintable_entry *bte;
+
        u2 lineindex = 0;
        u2 currentline = 0;
        u2 linepcchange = 0;
 
        u2 skipBasicBlockChange;
 
-METHINFOt(m,"\nPARSING: ",DEBUG4);
-if (opt_rt) {
-  if (m->methodUsed != USED) {
-    if (opt_verbose) {
-      printf(" rta missed: "); fflush(stdout);
-      METHINFO(m,opt_verbose);
-      }
-    if ( (rtMissed = fopen("rtMissed", "a")) == NULL) {
-      printf("CACAO - rtMissed file: cant open file to write append \n");
-      }
-    else {
-      utf_fprint(rtMissed,m->class->name); 
-       fprintf(rtMissed," "); fflush(rtMissed);
-      utf_fprint(rtMissed,m->name);
-       fprintf(rtMissed," "); fflush(rtMissed);
-      utf_fprint(rtMissed,m->descriptor); 
-       fprintf(rtMissed,"\n"); fflush(rtMissed);
-      fclose(rtMissed);
-      }
-   } 
-}
-       /* INLINING */
-
-       if (useinlining) {
-               label_index = inlinfo->label_index;
-               m->maxstack = inline_env->cummaxstack;
-               /*JOWENN m->exceptiontablelength = inline_env->cumextablelength;*/
-               tmpinlinf = (inlining_methodinfo*) 
-                               list_first(inlinfo->inlinedmethods);
-               if (tmpinlinf != NULL) nextgp = tmpinlinf->startgp;
-       }
-
-/**** static analysis has to be called before inlining
-        which has to be called before reg_set
-        which has to be called before parse (or ???)
-        will check if method being parsed was analysed here
-       if (opt_xta && opt_verbose) { 
-               **RT_jit_parse(m);**
-               printf("XTA requested, not available\n");
-               }
-       if (opt_vta && opt_verbose)  
-                   printf("VTA requested, not yet implemented\n");
-       ****/ 
-
        /* allocate instruction array and block index table */
        
        /* 1 additional for end ipc * # cum inline methods*/
@@ -500,24 +193,12 @@ if (opt_rt) {
        memset(iptr, 0, sizeof(instruction) * (inline_env->cumjcodelength + 5));
        
        /* compute branch targets of exception table */
-       /*
-if (m->exceptiontable == NULL) {
-  printf("m->exceptiontable=NULL\n");fflush(stdout);
-  }
-else {
-  printf("m->exceptiontable != NULL\n");fflush(stdout);
-  }
-printf("m->exceptiontablelength=%i, inline_env->method->exceptiontablelength=%i,inline_env->cumextablelength=%i\n",
-m->exceptiontablelength, inline_env->method->exceptiontablelength,inline_env->cumextablelength);
-       */
-       /*
-if (m->exceptiontablelength > 0)
-       m->exceptiontable = DMNEW(exceptiontable, m->exceptiontablelength + 1); 
-       */
 
        nextex = fillextable(m, 
          &(cd->exceptiontable[cd->exceptiontablelength-1]), m->exceptiontable, m->exceptiontablelength, 
           label_index, &b_count, inline_env);
+       if (!nextex)
+               return NULL;
        s_count = 1 + m->exceptiontablelength; /* initialize stack element counter   */
 
 #if defined(USE_THREADS)
@@ -533,7 +214,6 @@ if (m->exceptiontablelength > 0)
 
        if (m->linenumbercount == 0) {
                lineindex = 0;
-
        } else {
                linepcchange = m->linenumbers[0].start_pc;
        }
@@ -541,133 +221,45 @@ if (m->exceptiontablelength > 0)
        skipBasicBlockChange=0;
        for (p = 0, gp = 0; p < inline_env->method->jcodelength; gp += (nextp - p), p = nextp) {
          
-               /* DEBUG */      if (DEBUG==true) printf("----- p:%d gp:%d\n",p,gp);
-
                /* mark this position as a valid instruction start */
                if (!iswide) {
                        instructionstart[gp] = 1;
-                       /*log_text("new start of instruction");*/
                        if (linepcchange==p) {
                                if (inline_env->method->linenumbercount > lineindex) {
                                        currentline = inline_env->method->linenumbers[lineindex].line_number;
                                        lineindex++;
                                        if (lineindex < inline_env->method->linenumbercount)
                                                linepcchange = inline_env->method->linenumbers[lineindex].start_pc;
-                                       /*printf("Line number changed to: %ld\n",currentline);*/
                                }
                        }
                }
 
-               /*INLINING*/
-               if ((useinlining) && (gp == nextgp)) {
-                       u1 *tptr;
-                       bool *readonly = NULL;
-                       int argBlockIdx=0;
-
-                       block_insert(gp);               /* JJJJJJJJJJ */
-                       blockend=false;
-                       instructionstart[gp] = 1;
-                       m->basicblockindex[gp] |= (ipc << 1);  /*FIXME: necessary ? */
-
-                       opcode = code_get_u1(p,inline_env->method);
-                       nextp = p += jcommandsize[opcode];
-                       if (nextp > inline_env->method->jcodelength)
-                               panic("Unexpected end of bytecode");
-                       tmpinlinf = list_first(inlinfo->inlinedmethods);
-                       firstlocal = tmpinlinf->firstlocal;
-                       label_index = tmpinlinf->label_index;
-                       readonly = tmpinlinf->readonly;
-
-                       for (i=0,tptr=tmpinlinf->method->paramtypes;i<tmpinlinf->method->paramcount;i++,tptr++) {
-                               if ( ((*tptr)==TYPE_LNG) ||
-                                 ((*tptr)==TYPE_DBL) )
-                                       argBlockIdx+=2;
-                               else
-                                       argBlockIdx++;
-                       }
-
-                       for (i = 0, tptr = tmpinlinf->method->paramtypes + tmpinlinf->method->paramcount - 1; i < tmpinlinf->method->paramcount; i++, tptr--) {
-                               int op;
-
-                               if ((i == 0) && inlineparamopt) {
-                                       OP1(ICMD_CLEAR_ARGREN, firstlocal);
-                               }
-
-                               if (!inlineparamopt || !readonly[i]) {
-                                       op = ICMD_ISTORE;
-
-                               } else {
-                                       op = ICMD_READONLY_ARG;
-                               }
+               /* fetch next opcode  */
 
-                               op += *tptr;
-                               if ( ((*tptr)==TYPE_LNG) ||
-                                 ((*tptr)==TYPE_DBL) )
-                                       argBlockIdx-=2;
-                               else
-                                       argBlockIdx--;
+               opcode = code_get_u1(p, inline_env->method);
 
-                               OP1(op, firstlocal + argBlockIdx);
-                               /* OP1(op, firstlocal + tmpinlinf->method->paramcount - 1 - i); */
-                               /* printf("inline argument load operation for local: %ld\n",firstlocal + tmpinlinf->method->paramcount - 1 - i); */
-                       }
-                       skipBasicBlockChange=1;
-METHINFOt(inline_env->method,"BEFORE SAVE: ",DEBUG);
-                       inlining_save_compiler_variables();
-METHINFOt(inline_env->method,"AFTER SAVE: ",DEBUG);
-                       inlining_set_compiler_variables(tmpinlinf);
-METHINFOt(inline_env->method,"AFTER SET :: ",DEBUG);
-METHINFOt(m,"\n.......Parsing (inlined): ",DEBUG);
-METHINFO(inline_env->method,DEBUG);
-
-                        OP1(ICMD_INLINE_START,tmpinlinf->level);
-
-                       if (inlinfo->inlinedmethods == NULL) {
-                               gp = -1;
-                       } else {
-                               tmpinlinf = list_first(inlinfo->inlinedmethods);
-                               nextgp = (tmpinlinf != NULL) ? tmpinlinf->startgp : -1;
-                       }
-                       if (inline_env->method->exceptiontablelength > 0) 
-                         nextex = fillextable(m, nextex, 
-                           inline_env->method->exceptiontable, inline_env->method->exceptiontablelength, 
-                           label_index, &b_count, inline_env);
-                       continue;
-               }
-         
-               opcode = code_get_u1(p,inline_env->method);            /* fetch op code  */
-        if (DEBUG==true) 
-               {
-                       printf("Parse p=%i<%i<%i<   opcode=<%i> %s\n",
-                          p, gp, inline_env->jcodelength, opcode, opcode_names[opcode]);
-                       if (label_index)
-                               printf("label_index[%d]=%d\n",p,label_index[p]);
-               }
-        /*
-printf("basicblockindex[gp=%i]=%i=%p ipc=%i=%p shifted ipc=%i=%p\n",
-gp,m->basicblockindex[gp],m->basicblockindex[gp],ipc,ipc,(ipc<<1),(ipc<<1));
-fflush(stdout);
-        */
                if (!skipBasicBlockChange) {
                        m->basicblockindex[gp] |= (ipc << 1); /*store intermed cnt*/
                } else skipBasicBlockChange=0;
-               /*
-printf("basicblockindex[gp=%i]=%i=%p \n",
-gp,m->basicblockindex[gp],m->basicblockindex[gp]);
-fflush(stdout);
-               */
-
-               if (blockend) {
-                       block_insert(gp);               /* start new block                */
+
+               /* some compilers put a JAVA_NOP after a blockend instruction */
+
+               if ((opcode != JAVA_NOP) && (blockend == true)) {
+                       /* start new block */
+
+                       block_insert(gp);
                        blockend = false;
-                       /*printf("blockend was set: new blockcount: %ld at:%ld\n",b_count,gp);*/
                }
 
                nextp = p + jcommandsize[opcode];   /* compute next instruction start */
-               if (nextp > inline_env->method->jcodelength)
-                       panic("Unexpected end of bytecode");
+
+               if (nextp > inline_env->method->jcodelength) {
+                       *exceptionptr = new_verifyerror(inline_env->method,
+                                       "Unexpected end of bytecode");
+                       return NULL;
+               }
+
                s_count += stackreq[opcode];            /* compute stack element count    */
-SHOWOPCODE(DEBUG4)
                switch (opcode) {
                case JAVA_NOP:
                        break;
@@ -683,17 +275,20 @@ SHOWOPCODE(DEBUG4)
                        break;
 
                case JAVA_LDC1:
-                       i = code_get_u1(p+1,inline_env->method);
-
+                       i = code_get_u1(p + 1, inline_env->method);
                        goto pushconstantitem;
+
                case JAVA_LDC2:
                case JAVA_LDC2W:
-                       i = code_get_u2(p + 1,inline_env->method);
+                       i = code_get_u2(p + 1, inline_env->method);
 
                pushconstantitem:
 
-                       if (i >= inline_env->method->class->cpcount) 
-                               panic ("Attempt to access constant outside range");
+                       if (i >= inline_env->method->class->cpcount) {
+                               *exceptionptr = new_verifyerror(inline_env->method,
+                                       "Attempt to access constant outside range");
+                               return NULL;
+                       }
 
                        switch (inline_env->method->class->cptags[i]) {
                        case CONSTANT_Integer:
@@ -711,7 +306,21 @@ SHOWOPCODE(DEBUG4)
                        case CONSTANT_String:
                                LOADCONST_A(literalstring_new((utf *) (inline_env->method->class->cpinfos[i])));
                                break;
-                       default: panic("Invalid constant type to push");
+                       case CONSTANT_Class:
+                               cr = (constant_classref *) (inline_env->method->class->cpinfos[i]);
+
+                               if (!resolve_classref(inline_env->method, cr, resolveLazy, true,
+                                                                         true, &c))
+                                       return NULL;
+
+                               /* if not resolved, c == NULL */
+
+                               LOADCONST_A_CLASS(c, cr);
+                               break;
+                       default:
+                               *exceptionptr = new_verifyerror(inline_env->method,
+                                               "Invalid constant type to push");
+                               return NULL;
                        }
                        break;
 
@@ -875,89 +484,75 @@ SHOWOPCODE(DEBUG4)
                        nextp = p + 1;
                        break;
 
-                       /* managing arrays ************************************************/
+               /* managing arrays ****************************************************/
 
                case JAVA_NEWARRAY:
-                       OP(ICMD_CHECKASIZE);
-                       switch (code_get_s1(p + 1,inline_env->method)) {
+                       switch (code_get_s1(p + 1, inline_env->method)) {
                        case 4:
-                               BUILTIN1(BUILTIN_newarray_boolean, TYPE_ADR,currentline);
+                               bte = builtintable_get_internal(BUILTIN_newarray_boolean);
                                break;
                        case 5:
-                               BUILTIN1(BUILTIN_newarray_char, TYPE_ADR,currentline);
+                               bte = builtintable_get_internal(BUILTIN_newarray_char);
                                break;
                        case 6:
-                               BUILTIN1(BUILTIN_newarray_float, TYPE_ADR,currentline);
+                               bte = builtintable_get_internal(BUILTIN_newarray_float);
                                break;
                        case 7:
-                               BUILTIN1(BUILTIN_newarray_double, TYPE_ADR,currentline);
+                               bte = builtintable_get_internal(BUILTIN_newarray_double);
                                break;
                        case 8:
-                               BUILTIN1(BUILTIN_newarray_byte, TYPE_ADR,currentline);
+                               bte = builtintable_get_internal(BUILTIN_newarray_byte);
                                break;
                        case 9:
-                               BUILTIN1(BUILTIN_newarray_short, TYPE_ADR,currentline);
+                               bte = builtintable_get_internal(BUILTIN_newarray_short);
                                break;
                        case 10:
-                               BUILTIN1(BUILTIN_newarray_int, TYPE_ADR,currentline);
+                               bte = builtintable_get_internal(BUILTIN_newarray_int);
                                break;
                        case 11:
-                               BUILTIN1(BUILTIN_newarray_long, TYPE_ADR,currentline);
+                               bte = builtintable_get_internal(BUILTIN_newarray_long);
                                break;
-                       default: panic("Invalid array-type to create");
+                       default:
+                               *exceptionptr = new_verifyerror(inline_env->method,
+                                               "Invalid array-type to create");
+                               return NULL;
                        }
-                       OP(ICMD_CHECKEXCEPTION);
+                       BUILTIN(bte, true, NULL, currentline);
                        break;
 
                case JAVA_ANEWARRAY:
-                       OP(ICMD_CHECKASIZE);
-                       i = code_get_u2(p + 1,inline_env->method);
-                       {
-                               classinfo *component =
-                                       (classinfo *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
+                       i = code_get_u2(p + 1, inline_env->method);
+                       compr = (constant_classref *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
+                       if (!compr)
+                               return NULL;
 
-                               if (!class_load(component))
-                                       return NULL;
+                       if (!(cr = class_get_classref_multiarray_of(1, compr)))
+                               return NULL;
 
-                               if (!class_link(component))
-                                       return NULL;
+                       if (!resolve_classref(inline_env->method, cr, resolveLazy, true, true, &c))
+                               return NULL;
 
-                               LOADCONST_A_BUILTIN(class_array_of(component)->vftbl);
-/*                             LOADCONST_A_BUILTIN(component); */
-                               s_count++;
-                               BUILTIN2(BUILTIN_newarray, TYPE_ADR, currentline);
-                       }
-                       OP(ICMD_CHECKEXCEPTION);
+                       LOADCONST_A_BUILTIN(c, cr);
+                       bte = builtintable_get_internal(BUILTIN_newarray);
+                       BUILTIN(bte, true, NULL, currentline);
+                       s_count++;
                        break;
 
                case JAVA_MULTIANEWARRAY:
                        inline_env->method->isleafmethod = false;
-                       i = code_get_u2(p + 1,inline_env->method);
+                       i = code_get_u2(p + 1, inline_env->method);
                        {
-                               vftbl_t *arrayvftbl;
-                               s4 v = code_get_u1(p + 3,inline_env->method);
-
-                               
-/*                             vftbl *arrayvftbl = */
-/*                                     ((classinfo *) class_getconstant(class, i, CONSTANT_Class))->vftbl; */
-/*                             OP2A(opcode, v, arrayvftbl,currentline); */
-
-                               
-                               classinfo *component =
-                                       (classinfo *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
+                               s4 v = code_get_u1(p + 3, inline_env->method);
 
-                               if (!class_load(component))
+                               cr = (constant_classref *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
+                               if (!cr)
                                        return NULL;
 
-                               if (!class_link(component))
+                               if (!resolve_classref(inline_env->method, cr, resolveLazy, true, true, &c))
                                        return NULL;
 
-                               arrayvftbl = component->vftbl;
-                               OP2A(opcode, v, arrayvftbl, currentline);
-
-/*                             classinfo *arrayclass = */
-/*                                     (classinfo *) class_getconstant(class, i, CONSTANT_Class); */
-/*                             OP2A(opcode, v, arrayclass, currentline); */
+                               /* if unresolved, c == NULL */
+                               OP2AT(opcode, v, c, cr, currentline);
                        }
                        break;
 
@@ -981,7 +576,6 @@ SHOWOPCODE(DEBUG4)
                case JAVA_JSR:
                        i = p + code_get_s2(p + 1,inline_env->method);
                        if (useinlining) { 
-                               debug_writebranch;
                                i = label_index[i];
                        }
                        bound_check(i);
@@ -989,15 +583,14 @@ SHOWOPCODE(DEBUG4)
                        blockend = true;
                        OP1(opcode, i);
                        break;
+
                case JAVA_GOTO_W:
                case JAVA_JSR_W:
                        i = p + code_get_s4(p + 1,inline_env->method);
                        if (useinlining) { 
-                               debug_writebranch;
                                i = label_index[i];
                        }
                        bound_check(i);
-                       /*printf("B6 JSR_W\t"); fflush(stdout);*/
                        block_insert(i);
                        blockend = true;
                        OP1(opcode, i);
@@ -1047,16 +640,22 @@ SHOWOPCODE(DEBUG4)
                        }
 
                        blockend = true;
+                       /* zero val.a so no patcher is inserted */
+                       /* the type checker may set this later  */
+                       iptr->val.a = NULL;
                        OP(opcode);
                        break;
 
                case JAVA_ATHROW:
                        blockend = true;
+                       /* zero val.a so no patcher is inserted */
+                       /* the type checker may set this later  */
+                       iptr->val.a = NULL;
                        OP(opcode);
                        break;
                                
 
-                       /* table jumps ********************************/
+               /* table jumps ********************************************************/
 
                case JAVA_LOOKUPSWITCH:
                        {
@@ -1066,21 +665,26 @@ SHOWOPCODE(DEBUG4)
 
                                blockend = true;
                                nextp = ALIGN((p + 1), 4);
-                               if (nextp + 8 > inline_env->method->jcodelength)
-                                       panic("Unexpected end of bytecode");
+
+                               if (nextp + 8 > inline_env->method->jcodelength) {
+                                       *exceptionptr = new_verifyerror(inline_env->method,
+                                                       "Unexpected end of bytecode");
+                                       return NULL;
+                               }
+
                                if (!useinlining) {
                                        tablep = (s4 *) (inline_env->method->jcode + nextp);
 
                                } else {
-                                       num = code_get_u4(nextp + 4,inline_env->method);
+                                       num = code_get_u4(nextp + 4, inline_env->method);
                                        tablep = DMNEW(s4, num * 2 + 2);
                                }
 
-                               OP2A(opcode, 0, tablep,currentline);
+                               OP2A(opcode, 0, tablep, currentline);
 
                                /* default target */
 
-                               j =  p + code_get_s4(nextp,inline_env->method);
+                               j =  p + code_get_s4(nextp, inline_env->method);
                                if (useinlining) 
                                        j = label_index[j];
                                *tablep = j;     /* restore for little endian */
@@ -1091,26 +695,31 @@ SHOWOPCODE(DEBUG4)
 
                                /* number of pairs */
 
-                               num = code_get_u4(nextp,inline_env->method);
+                               num = code_get_u4(nextp, inline_env->method);
                                *tablep = num;
                                tablep++;
                                nextp += 4;
 
-                               if (nextp + 8*(num) > inline_env->method->jcodelength)
-                                       panic("Unexpected end of bytecode");
+                               if (nextp + 8 * num > inline_env->method->jcodelength) {
+                                       *exceptionptr = new_verifyerror(inline_env->method,
+                                               "Unexpected end of bytecode");
+                                       return NULL;
+                               }
 
                                for (i = 0; i < num; i++) {
                                        /* value */
 
-                                       j = code_get_s4(nextp,inline_env->method);
+                                       j = code_get_s4(nextp, inline_env->method);
                                        *tablep = j; /* restore for little endian */
                                        tablep++;
                                        nextp += 4;
 
                                        /* check if the lookup table is sorted correctly */
                                        
-                                       if (i && (j <= prevvalue))
-                                               panic("invalid LOOKUPSWITCH: table not sorted");
+                                       if (i && (j <= prevvalue)) {
+                                               *exceptionptr = new_verifyerror(m, "Unsorted lookup switch");
+                                               return NULL;
+                                       }
                                        prevvalue = j;
 
                                        /* target */
@@ -1136,8 +745,12 @@ SHOWOPCODE(DEBUG4)
 
                                blockend = true;
                                nextp = ALIGN((p + 1), 4);
-                               if (nextp + 12 > inline_env->method->jcodelength)
-                                       panic("Unexpected end of bytecode");
+                               if (nextp + 12 > inline_env->method->jcodelength) {
+                                       *exceptionptr = new_verifyerror(inline_env->method,
+                                               "Unexpected end of bytecode");
+                                       return NULL;
+                               }
+
                                if (!useinlining) {
                                        tablep = (s4 *) (inline_env->method->jcode + nextp);
 
@@ -1146,11 +759,11 @@ SHOWOPCODE(DEBUG4)
                                        tablep = DMNEW(s4, num + 1 + 3);
                                }
 
-                               OP2A(opcode, 0, tablep,currentline);
+                               OP2A(opcode, 0, tablep, currentline);
 
                                /* default target */
 
-                               j = p + code_get_s4(nextp,inline_env->method);
+                               j = p + code_get_s4(nextp, inline_env->method);
                                if (useinlining)
                                        j = label_index[j];
                                *tablep = j;     /* restore for little endian */
@@ -1161,29 +774,35 @@ SHOWOPCODE(DEBUG4)
 
                                /* lower bound */
 
-                               j = code_get_s4(nextp,inline_env->method);
+                               j = code_get_s4(nextp, inline_env->method);
                                *tablep = j;     /* restore for little endian */
                                tablep++;
                                nextp += 4;
 
                                /* upper bound */
 
-                               num = code_get_s4(nextp,inline_env->method);
+                               num = code_get_s4(nextp, inline_env->method);
                                *tablep = num;   /* restore for little endian */
                                tablep++;
                                nextp += 4;
 
                                num -= j;  /* difference of upper - lower */
-                               if (num < 0)
-                                       panic("invalid TABLESWITCH: upper bound < lower bound");
 
-                               if (nextp + 4*(num+1) > inline_env->method->jcodelength)
-                                       panic("Unexpected end of bytecode");
+                               if (num < 0) {
+                                       *exceptionptr = new_verifyerror(inline_env->method,
+                                                       "invalid TABLESWITCH: upper bound < lower bound");
+                                       return NULL;
+                               }
+
+                               if (nextp + 4 * (num + 1) > inline_env->method->jcodelength) {
+                                       *exceptionptr = new_verifyerror(inline_env->method,
+                                               "Unexpected end of bytecode");
+                                       return NULL;
+                               }
 
                                for (i = 0; i <= num; i++) {
                                        j = p + code_get_s4(nextp,inline_env->method);
                                        if (useinlining) {
-                                               /*printf("TABLESWITCH: j before mapping=%ld\n",j);*/
                                                j = label_index[j];
                                        }
                                        *tablep = j; /* restore for little endian */
@@ -1191,291 +810,288 @@ SHOWOPCODE(DEBUG4)
                                        nextp += 4;
                                        bound_check(j);
                                        block_insert(j);
-                                       /*printf("TABLESWITCH: block_insert(%ld)\n",j);*/
                                }
 
                                break;
                        }
 
 
-                       /* load and store of object fields *******************/
+               /* load and store of object fields ************************************/
 
                case JAVA_AASTORE:
-                       BUILTIN3(BUILTIN_aastore, TYPE_VOID, currentline);
+                       OP(opcode);
+                       inline_env->method->isleafmethod = false;
                        break;
 
-               case JAVA_PUTSTATIC:
                case JAVA_GETSTATIC:
-                       i = code_get_u2(p + 1,inline_env->method);
+               case JAVA_PUTSTATIC:
+               case JAVA_GETFIELD:
+               case JAVA_PUTFIELD:
                        {
-                               constant_FMIref *fr;
-                               fieldinfo *fi;
+                               constant_FMIref  *fr;
+                               unresolved_field *uf;
+                               fieldinfo        *fi;
+
+                               i = code_get_u2(p + 1, inline_env->method);
+                               fr = class_getconstant(inline_env->method->class, i,
+                                                                          CONSTANT_Fieldref);
+                               if (!fr)
+                                       return NULL;
 
-                               fr = class_getconstant(inline_env->method->class, i, CONSTANT_Fieldref);
+                               OP2A_NOINC(opcode, fr->parseddesc.fd->type, fr, currentline);
 
-                               if (!class_load(fr->class))
+                               if (!(uf = create_unresolved_field(inline_env->method->class,
+                                                                                                  inline_env->method,
+                                                                                                  iptr)))
                                        return NULL;
 
-                               if (!class_link(fr->class))
-                                       return NULL;
+                               /* store unresolved_field pointer */
 
-                               fi = class_resolvefield(fr->class,
-                                                                               fr->name,
-                                                                               fr->descriptor,
-                                                                               inline_env->method->class,
-                                                                               true);
+                               iptr->target = uf;
 
-                               if (!fi)
-                                       return NULL;
+                               /* only with -noverify, otherwise the typechecker does this */
+
+                               if (!opt_verify) {
+                                       if (!resolve_field(uf, resolveLazy, &fi))
+                                               return NULL;
+
+                                       iptr->val.a = fi;
 
-                               OP2A(opcode, fi->type, fi, currentline);
-                               if (!fi->class->initialized) {
-                                       inline_env->method->isleafmethod = false;
+                               } else {
+                                       iptr->val.a = NULL;
                                }
+                               PINC;
                        }
                        break;
 
-               case JAVA_PUTFIELD:
-               case JAVA_GETFIELD:
-                       i = code_get_u2(p + 1,inline_env->method);
-                       {
-                               constant_FMIref *fr;
-                               fieldinfo *fi;
-
-                               fr = class_getconstant(inline_env->method->class, i, CONSTANT_Fieldref);
 
-                               if (!class_load(fr->class))
-                                       return NULL;
+               /* method invocation **************************************************/
 
-                               if (!class_link(fr->class))
-                                       return NULL;
+               case JAVA_INVOKESTATIC:
+                       i = code_get_u2(p + 1, inline_env->method);
+                       {
+                               constant_FMIref   *mr;
+                               methoddesc        *md;
+                               unresolved_method *um;
+                               methodinfo        *mi;
 
-                               fi = class_resolvefield(fr->class,
-                                                                               fr->name,
-                                                                               fr->descriptor,
-                                                                               inline_env->method->class,
-                                                                               true);
+                               inline_env->method->isleafmethod = false;
 
-                               if (!fi)
+                               mr = class_getconstant(inline_env->method->class, i,
+                                                                          CONSTANT_Methodref);
+                               if (!mr)
                                        return NULL;
 
-                               OP2A(opcode, fi->type, fi, currentline);
-                       }
-                       break;
-
+                               md = mr->parseddesc.md;
 
-                       /* method invocation *****/
+                               if (!md->params)
+                                       if (!descriptor_params_from_paramtypes(md, ACC_STATIC))
+                                               return NULL;
 
-               case JAVA_INVOKESTATIC:
-                       i = code_get_u2(p + 1,inline_env->method);
-                       {
-                               constant_FMIref *mr;
-                               methodinfo *mi;
-                               
-                               inline_env->method->isleafmethod = false;
+                               OP2A_NOINC(opcode, 0, mr, currentline);
 
-                               mr = class_getconstant(inline_env->method->class, i, CONSTANT_Methodref);
+                               um = create_unresolved_method(inline_env->method->class,
+                                                                                         inline_env->method, iptr);
 
-                               if (!class_load(mr->class))
+                               if (!um)
                                        return NULL;
 
-                               if (!class_link(mr->class))
-                                       return NULL;
+                               /* store the unresolved_method pointer */
 
-                               mi = class_resolveclassmethod(mr->class,
-                                                                                         mr->name,
-                                                                                         mr->descriptor,
-                                                                                         inline_env->method->class,
-                                                                                         true);
+                               iptr->target = um;
 
-                               if (!mi)
-                                       return NULL;
+                               /* only with -noverify, otherwise the typechecker does this */
 
-if (DEBUG4==true) { 
-       method_display_w_class(mi); 
-       printf("\tINVOKE STATIC\n");
-        fflush(stdout);}
+                               if (!opt_verify) {
+                                       if (!resolve_method(um, resolveLazy, &mi))
+                                               return NULL;
 
-                               if (!(mi->flags & ACC_STATIC)) {
-                                       *exceptionptr =
-                                               new_exception(string_java_lang_IncompatibleClassChangeError);
-                                       return NULL;
+                                       iptr->val.a = mi;
                                }
-
-                               descriptor2types(mi);
-                               OP2A(opcode, mi->paramcount, mi, currentline);
+                               else {
+                                       iptr->val.a = NULL;
+                               }
+                               PINC;
                        }
                        break;
 
                case JAVA_INVOKESPECIAL:
                case JAVA_INVOKEVIRTUAL:
-                       i = code_get_u2(p + 1,inline_env->method);
                        {
-                               constant_FMIref *mr;
-                               methodinfo *mi;
+                               constant_FMIref   *mr;
+                               methoddesc        *md;
+                               unresolved_method *um;
+                               methodinfo        *mi;
 
                                inline_env->method->isleafmethod = false;
 
-                               mr = class_getconstant(inline_env->method->class, i, CONSTANT_Methodref);
-
-                               if (!class_load(mr->class))
+                               i = code_get_u2(p + 1, inline_env->method);
+                               mr = class_getconstant(inline_env->method->class, i,
+                                                                          CONSTANT_Methodref);
+                               if (!mr)
                                        return NULL;
 
-                               if (!class_link(mr->class))
-                                       return NULL;
+                               md = mr->parseddesc.md;
+
+                               if (!md->params)
+                                       if (!descriptor_params_from_paramtypes(md, 0))
+                                               return NULL;
+                               
+                               OP2A_NOINC(opcode, 0, mr, currentline);
 
-                               mi = class_resolveclassmethod(mr->class,
-                                                                                         mr->name,
-                                                                                         mr->descriptor,
-                                                                                         inline_env->method->class,
-                                                                                         true);
+                               um = create_unresolved_method(inline_env->method->class,
+                                                                                         inline_env->method, iptr);
 
-                               if (!mi)
+                               if (!um)
                                        return NULL;
 
-if (DEBUG4==true) { 
-       method_display_w_class(mi); 
-       printf("\tINVOKE SPEC/VIRT\n");
-        fflush(stdout);}
+                               /* store the unresolved_method* */
 
-                               if (mi->flags & ACC_STATIC) {
-                                       *exceptionptr =
-                                               new_exception(string_java_lang_IncompatibleClassChangeError);
-                                       return NULL;
-                               }
+                               iptr->target = um;
 
-                               descriptor2types(mi);
-                               OP2A(opcode, mi->paramcount, mi, currentline);
+                               /* only with -noverify, otherwise the typechecker does this */
+
+                               if (!opt_verify) {
+                                       if (!resolve_method(um, resolveLazy, &mi))
+                                               return NULL;
+
+                                       iptr->val.a = mi;
+                               }
+                               else {
+                                       iptr->val.a = NULL;
+                               }
+                               PINC;
                        }
                        break;
 
                case JAVA_INVOKEINTERFACE:
-                       i = code_get_u2(p + 1,inline_env->method);
+                       i = code_get_u2(p + 1, inline_env->method);
                        {
-                               constant_FMIref *mr;
-                               methodinfo *mi;
+                               constant_FMIref   *mr;
+                               methoddesc        *md;
+                               unresolved_method *um;
+                               methodinfo        *mi;
                                
                                inline_env->method->isleafmethod = false;
 
-                               mr = class_getconstant(inline_env->method->class, i, CONSTANT_InterfaceMethodref);
-
-                               if (!class_load(mr->class))
+                               mr = class_getconstant(inline_env->method->class, i,
+                                                                          CONSTANT_InterfaceMethodref);
+                               if (!mr)
                                        return NULL;
 
-                               if (!class_link(mr->class))
-                                       return NULL;
+                               md = mr->parseddesc.md;
 
-                               mi = class_resolveinterfacemethod(mr->class,
-                                                                                                 mr->name,
-                                                                                                 mr->descriptor,
-                                                                                                 inline_env->method->class,
-                                                                                                 true);
-                               if (!mi)
-                                       return NULL;
+                               if (!md->params)
+                                       if (!descriptor_params_from_paramtypes(md, 0))
+                                               return NULL;
 
-                               if (mi->flags & ACC_STATIC) {
-                                       *exceptionptr =
-                                               new_exception(string_java_lang_IncompatibleClassChangeError);
+                               OP2A_NOINC(opcode, 0, mr, currentline);
+
+                               um = create_unresolved_method(inline_env->method->class,
+                                                                                         inline_env->method, iptr);
+
+                               if (!um)
                                        return NULL;
-                               }
 
-if (DEBUG4==true) { 
-       method_display_w_class(mi); 
-       printf("\tINVOKE INTERFACE\n");
-        fflush(stdout);}
-                               descriptor2types(mi);
-                               OP2A(opcode, mi->paramcount, mi, currentline);
+                               /* store the unresolved_method* */
+
+                               iptr->target = um;
+
+                               /* only with -noverify, otherwise the typechecker does this */
+
+                               if (!opt_verify) {
+                                       if (!resolve_method(um, resolveLazy, &mi))
+                                               return NULL;
+
+                                       iptr->val.a = mi;
+                               }
+                               else {
+                                       iptr->val.a = NULL;
+                               }
+                               PINC;
                        }
                        break;
 
-                       /* miscellaneous object operations *******/
+               /* miscellaneous object operations ************************************/
 
                case JAVA_NEW:
-                       i = code_get_u2(p + 1,inline_env->method);
-                       LOADCONST_A_BUILTIN(class_getconstant(inline_env->method->class, i, CONSTANT_Class));
+                       i = code_get_u2(p + 1, inline_env->method);
+                       cr = (constant_classref *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
+                       if (!cr)
+                               return NULL;
+
+                       if (!resolve_classref(inline_env->method, cr, resolveLazy, true, true,
+                                                                 &c))
+                               return NULL;
+
+                       LOADCONST_A_BUILTIN(c, cr);
+                       bte = builtintable_get_internal(BUILTIN_new);
+                       BUILTIN(bte, true, NULL, currentline);
                        s_count++;
-                       BUILTIN1(BUILTIN_new, TYPE_ADR, currentline);
-                       OP(ICMD_CHECKEXCEPTION);
                        break;
 
                case JAVA_CHECKCAST:
-                       i = code_get_u2(p + 1,inline_env->method);
-                       {
-                               classinfo *cls =
-                                       (classinfo *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
-
-                               if (!cls->loaded)
-                                       if (!class_load(cls))
-                                               return NULL;
-
-                               if (!cls->linked)
-                                       if (!class_link(cls))
-                                               return NULL;
+                       i = code_get_u2(p + 1, inline_env->method);
+                       cr = (constant_classref *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
+                       if (!cr)
+                               return NULL;
+
+                       if (!resolve_classref(inline_env->method, cr, resolveLazy, true,
+                                                                 true, &c))
+                               return NULL;
+
+                       if (cr->name->text[0] == '[') {
+                               /* array type cast-check */
+                               OP2AT(opcode, 0, c, cr, currentline);
+                               inline_env->method->isleafmethod = false;
 
-                               if (cls->vftbl->arraydesc) {
-                                       /* array type cast-check */
-                                       LOADCONST_A_BUILTIN(cls->vftbl);
-                                       s_count++;
-                                       BUILTIN2(BUILTIN_checkarraycast, TYPE_ADR,currentline);
-
-                               } else { /* object type cast-check */
-                                       /*
-                                         +                                               LOADCONST_A_BUILTIN(class_getconstant(class, i, CONSTANT_Class));
-                                         +                                               s_count++;
-                                         +                                               BUILTIN2(BUILTIN_checkcast, TYPE_ADR,currentline);
-                                         +                                             */
-                                       OP2A(opcode, 1, cls, currentline);
-                               }
+                       } else {
+                               /* object type cast-check */
+                               OP2AT(opcode, 1, c, cr, currentline);
                        }
                        break;
 
                case JAVA_INSTANCEOF:
                        i = code_get_u2(p + 1,inline_env->method);
-                       {
-                               classinfo *cls =
-                                       (classinfo *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
-
-                               if (!cls->loaded)
-                                       if (!class_load(cls))
-                                               return NULL;
-
-                               if (!cls->linked)
-                                       if (!class_link(cls))
-                                               return NULL;
+                       cr = (constant_classref *) class_getconstant(inline_env->method->class, i, CONSTANT_Class);
+                       if (!cr)
+                               return NULL;
+
+                       if (!resolve_classref(inline_env->method, cr, resolveLazy, true, true, &c))
+                               return NULL;
+
+                       if (cr->name->text[0] == '[') {
+                               /* array type cast-check */
+                               LOADCONST_A_BUILTIN(c, cr);
+                               bte = builtintable_get_internal(BUILTIN_arrayinstanceof);
+                               BUILTIN(bte, false, NULL, currentline);
+                               s_count++;
 
-                               if (cls->vftbl->arraydesc) {
-                                       /* array type cast-check */
-                                       LOADCONST_A_BUILTIN(cls->vftbl);
-                                       s_count++;
-                                       BUILTIN2(BUILTIN_arrayinstanceof, TYPE_INT, currentline);
-                               }
-                               else { /* object type cast-check */
-                                       /*
-                                         LOADCONST_A_BUILTIN(class_getconstant(class, i, CONSTANT_Class));
-                                         s_count++;
-                                         BUILTIN2(BUILTIN_instanceof, TYPE_INT,currentline);
-                                         +                                             */
-                                       OP2A(opcode, 1, cls, currentline);
-                               }
+                       } else {
+                               /* object type cast-check */
+                               OP2AT(opcode, 1, c, cr, currentline);
                        }
                        break;
 
                case JAVA_MONITORENTER:
 #if defined(USE_THREADS)
                        if (checksync) {
-                               BUILTIN1(BUILTIN_monitorenter, TYPE_VOID,currentline);
+                               OP(ICMD_CHECKNULL);
+                               bte = builtintable_get_internal(BUILTIN_monitorenter);
+                               BUILTIN(bte, false, NULL, currentline);
                        } else
 #endif
                                {
-                                       OP(ICMD_NULLCHECKPOP);
+                                       OP(ICMD_CHECKNULL);
+                                       OP(ICMD_POP);
                                }
                        break;
 
                case JAVA_MONITOREXIT:
 #if defined(USE_THREADS)
                        if (checksync) {
-                               BUILTIN1(BUILTIN_monitorexit, TYPE_VOID,currentline);
-                               OP(ICMD_CHECKEXCEPTION);
+                               bte = builtintable_get_internal(BUILTIN_monitorexit);
+                               BUILTIN(bte, false, NULL, currentline);
                        } else
 #endif
                                {
@@ -1483,29 +1099,54 @@ if (DEBUG4==true) {
                                }
                        break;
 
-                       /* any other basic operation **************************************/
+               /* any other basic operation ******************************************/
 
                case JAVA_IDIV:
+#if !SUPPORT_DIVISION
+                       bte = builtintable_get_internal(BUILTIN_idiv);
+                       OP2A(opcode, bte->md->paramcount, bte, currentline);
+                       inline_env->method->isleafmethod = false;
+#else
                        OP(opcode);
+#endif
                        break;
 
                case JAVA_IREM:
+#if !SUPPORT_DIVISION
+                       bte = builtintable_get_internal(BUILTIN_irem);
+                       OP2A(opcode, bte->md->paramcount, bte, currentline);
+                       inline_env->method->isleafmethod = false;
+#else
                        OP(opcode);
+#endif
                        break;
 
                case JAVA_LDIV:
+#if !(SUPPORT_DIVISION && SUPPORT_LONG && SUPPORT_LONG_DIV)
+                       bte = builtintable_get_internal(BUILTIN_ldiv);
+                       OP2A(opcode, bte->md->paramcount, bte, currentline);
+                       inline_env->method->isleafmethod = false;
+#else
                        OP(opcode);
+#endif
                        break;
 
                case JAVA_LREM:
+#if !(SUPPORT_DIVISION && SUPPORT_LONG && SUPPORT_LONG_DIV)
+                       bte = builtintable_get_internal(BUILTIN_lrem);
+                       OP2A(opcode, bte->md->paramcount, bte, currentline);
+                       inline_env->method->isleafmethod = false;
+#else
                        OP(opcode);
+#endif
                        break;
 
                case JAVA_FREM:
 #if defined(__I386__)
                        OP(opcode);
 #else
-                       BUILTIN2(BUILTIN_frem, TYPE_FLOAT,currentline);
+                       bte = builtintable_get_internal(BUILTIN_frem);
+                       BUILTIN(bte, false, NULL, currentline);
 #endif
                        break;
 
@@ -1513,14 +1154,16 @@ if (DEBUG4==true) {
 #if defined(__I386__)
                        OP(opcode);
 #else
-                       BUILTIN2(BUILTIN_drem, TYPE_DOUBLE,currentline);
+                       bte = builtintable_get_internal(BUILTIN_drem);
+                       BUILTIN(bte, false, NULL, currentline);
 #endif
                        break;
 
                case JAVA_F2I:
 #if defined(__ALPHA__)
                        if (!opt_noieee) {
-                               BUILTIN1(BUILTIN_f2i, TYPE_INT,currentline);
+                               bte = builtintable_get_internal(BUILTIN_f2i);
+                               BUILTIN(bte, false, NULL, currentline);
                        } else
 #endif
                                {
@@ -1531,7 +1174,8 @@ if (DEBUG4==true) {
                case JAVA_F2L:
 #if defined(__ALPHA__)
                        if (!opt_noieee) {
-                               BUILTIN1(BUILTIN_f2l, TYPE_LONG,currentline);
+                               bte = builtintable_get_internal(BUILTIN_f2l);
+                               BUILTIN(bte, false, NULL, currentline);
                        } else 
 #endif
                                {
@@ -1542,7 +1186,8 @@ if (DEBUG4==true) {
                case JAVA_D2I:
 #if defined(__ALPHA__)
                        if (!opt_noieee) {
-                               BUILTIN1(BUILTIN_d2i, TYPE_INT,currentline);
+                               bte = builtintable_get_internal(BUILTIN_d2i);
+                               BUILTIN(bte, false, NULL, currentline);
                        } else
 #endif
                                {
@@ -1553,7 +1198,8 @@ if (DEBUG4==true) {
                case JAVA_D2L:
 #if defined(__ALPHA__)
                        if (!opt_noieee) {
-                               BUILTIN1(BUILTIN_d2l, TYPE_LONG,currentline);
+                               bte = builtintable_get_internal(BUILTIN_d2l);
+                               BUILTIN(bte, false, NULL, currentline);
                        } else
 #endif
                                {
@@ -1566,7 +1212,9 @@ if (DEBUG4==true) {
                                new_verifyerror(m, "Quick instructions shouldn't appear yet.");
                        return NULL;
 
-               case 204: /* unused opcode */
+               case 186: /* unused opcode */
+               case 203:
+               case 204:
                case 205:
                case 206:
                case 207:
@@ -1618,8 +1266,10 @@ if (DEBUG4==true) {
                case 253:
                case 254:
                case 255:
-                       printf("Illegal opcode %d at instr %d\n", opcode, ipc);
-                       panic("Illegal opcode encountered");
+                       *exceptionptr =
+                               new_verifyerror(inline_env->method,"Illegal opcode %d at instr %d\n",
+                                                                 opcode, ipc);
+                       return NULL;
                        break;
 
                default:
@@ -1629,20 +1279,20 @@ if (DEBUG4==true) {
                } /* end switch */
 
                /* If WIDE was used correctly, iswide should have been reset by now. */
-               if (iswide && opcode != JAVA_WIDE)
-                       panic("Illegal instruction: WIDE before incompatible opcode");
-               
-               /* INLINING */
-                 
+               if (iswide && opcode != JAVA_WIDE) {
+                       *exceptionptr = new_verifyerror(inline_env->method,
+                                       "Illegal instruction: WIDE before incompatible opcode");
+                       return NULL;
+               }
+
+#if defined(USE_INLINING)
                /* if (inline_env->isinlinedmethod && p == inline_env->method->jcodelength - 1) { */ /* end of an inlined method */
                if (inline_env->isinlinedmethod && (nextp >= inline_env->method->jcodelength) ) { /* end of an inlined method */
-                       /*                printf("setting gp from %d to %d\n",gp, inlinfo->stopgp); */
                        gp = inlinfo->stopgp; 
                        inlining_restore_compiler_variables();
                        OP(ICMD_INLINE_END);
-/*label_index = inlinfo->label_index;*/
+                       /*label_index = inlinfo->label_index;*/
 
-METHINFOt(inline_env->method,"AFTER RESTORE : ",DEBUG);
                        list_remove(inlinfo->inlinedmethods, list_first(inlinfo->inlinedmethods));
                        if (inlinfo->inlinedmethods == NULL) { /* JJJJ */
                                nextgp = -1;
@@ -1650,18 +1300,21 @@ METHINFOt(inline_env->method,"AFTER RESTORE : ",DEBUG);
                                tmpinlinf = list_first(inlinfo->inlinedmethods);
                                nextgp = (tmpinlinf != NULL) ? tmpinlinf->startgp : -1;
                        }
-                       /*                printf("nextpgp: %d\n", nextgp); */
                        label_index=inlinfo->label_index;
                        firstlocal = inlinfo->firstlocal;
                }
+#endif /* defined(USE_INLINING) */
 
        } /* end for */
 
 
        if (p != m->jcodelength) {
                printf("p (%d) != m->jcodelength (%d)\n",p,m->jcodelength);
-               panic("Command-sequence crosses code-boundary");
+               *exceptionptr = new_verifyerror(inline_env->method,
+                               "Command-sequence crosses code-boundary");
+               return NULL;
        }
+
        if (!blockend) {
                *exceptionptr = new_verifyerror(m, "Falling off the end of the code");
                return NULL;
@@ -1710,11 +1363,15 @@ METHINFOt(inline_env->method,"AFTER RESTORE : ",DEBUG);
                for (p = 0; p < inline_env->cumjcodelength; p++) { 
                /* for (p = 0; p < m->jcodelength; p++) { */
                        if (m->basicblockindex[p] & 1) {
-                               /* check if this block starts at the beginning of an instruction */
+                               /* Check if this block starts at the beginning of an          */
+                               /* instruction.                                               */
+
                                if (!instructionstart[p]) {
-                                       printf("Basic Block beginn: %d\n",p);
-                                       panic("Branch into middle of instruction");
+                                       *exceptionptr = new_verifyerror(inline_env->method,
+                                               "Branch into middle of instruction");
+                                       return NULL;
                                }
+
                                /* allocate the block */
                                bptr->iinstr = m->instructions + (m->basicblockindex[p] >> 1);
                                bptr->debug_nr = m->c_debug_nr++;
@@ -1765,8 +1422,6 @@ METHINFOt(inline_env->method,"AFTER RESTORE : ",DEBUG);
                        cd->exceptiontable[i].handler = m->basicblocks + m->basicblockindex[p];
            }
        }
-       
-       if (useinlining) inlining_cleanup(inline_env);
 
        /* just return methodinfo* to signal everything was ok */
 
@@ -1785,5 +1440,5 @@ METHINFOt(inline_env->method,"AFTER RESTORE : ",DEBUG);
  * c-basic-offset: 4
  * tab-width: 4
  * End:
+ * vim:noexpandtab:sw=4:ts=4:
  */
-