* src/vm/vm.c, src/vm/vm.h: Moved to .cpp.
[cacao.git] / src / vm / jit / arm / codegen.c
index 598fdb3aa722047c424e2dd9ab7eda86d94946f9..e7dd2443eb92bedf5f78210861076a8ecb68b008 100644 (file)
@@ -1,9 +1,7 @@
 /* src/vm/jit/arm/codegen.c - machine code generator for Arm
 
-   Copyright (C) 1996-2005, 2006, 2007 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, 2007, 2008
+   CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
 
    This file is part of CACAO.
 
@@ -22,8 +20,6 @@
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.
 
-   $Id: codegen.c 8295 2007-08-11 17:57:24Z michi $
-
 */
 
 
@@ -41,6 +37,7 @@
 
 #include "mm/memory.h"
 
+#include "native/localref.h"
 #include "native/native.h"
 
 #include "threads/lock-common.h"
 #include "vm/builtin.h"
 #include "vm/exceptions.h"
 #include "vm/global.h"
-#include "vm/vm.h"
+#include "vm/vm.hpp"
 
+#include "vm/jit/abi.h"
 #include "vm/jit/asmpart.h"
 #include "vm/jit/codegen-common.h"
 #include "vm/jit/dseg.h"
 #include "vm/jit/emit-common.h"
 #include "vm/jit/jit.h"
-#include "vm/jit/md.h"
+#include "vm/jit/linenumbertable.h"
 #include "vm/jit/methodheader.h"
 #include "vm/jit/parse.h"
 #include "vm/jit/patcher-common.h"
@@ -87,7 +85,6 @@ bool codegen_emit(jitdata *jd)
        varinfo        *var;
        basicblock     *bptr;
        instruction    *iptr;
-       exception_entry *ex;
 
        s4              spilledregs_num;
        s4              savedregs_num;
@@ -120,7 +117,8 @@ bool codegen_emit(jitdata *jd)
        
        /* space to save used callee saved registers */
 
-       savedregs_num = (jd->isleafmethod) ? 0 : 1;       /* space to save the LR */
+       savedregs_num = code_is_leafmethod(code) ? 0 : 1; /* space to save the LR */
+
        savedregs_num += (INT_SAV_CNT - rd->savintreguse);
        /*savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);*/
        assert((FLT_SAV_CNT - rd->savfltreguse) == 0);
@@ -128,7 +126,7 @@ bool codegen_emit(jitdata *jd)
        spilledregs_num = rd->memuse;
 
 #if defined(ENABLE_THREADS)        /* space to save argument of monitor_enter */
-       if (checksync && (m->flags & ACC_SYNCHRONIZED))
+       if (checksync && code_is_synchronized(code))
                spilledregs_num++;
 #endif
 
@@ -146,39 +144,23 @@ bool codegen_emit(jitdata *jd)
        (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
        (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
 
-#if defined(ENABLE_THREADS)
-       /* IsSync contains the offset relative to the stack pointer for the
-          argument of monitor_exit used in the exception handler. Since the
-          offset could be zero and give a wrong meaning of the flag it is
-          offset by one.
-       */
-
-       if (checksync && (m->flags & ACC_SYNCHRONIZED))
-               (void) dseg_add_unique_s4(cd, rd->memuse * 8 + 4);/* IsSync         */
+       code->synchronizedoffset = rd->memuse * 8;
+
+       /* REMOVEME: We still need it for exception handling in assembler. */
+
+       if (code_is_leafmethod(code))
+               (void) dseg_add_unique_s4(cd, 1);
        else
-#endif
-               (void) dseg_add_unique_s4(cd, 0);                  /* IsSync          */
+               (void) dseg_add_unique_s4(cd, 0);
 
-       (void) dseg_add_unique_s4(cd, jd->isleafmethod);       /* IsLeaf          */
        (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave */
        (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave */
-       (void) dseg_addlinenumbertablesize(cd);
-       (void) dseg_add_unique_s4(cd, jd->exceptiontablelength); /* ExTableSize   */
-
-       /* create exception table */
-
-       for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
-               dseg_add_target(cd, ex->start);
-               dseg_add_target(cd, ex->end);
-               dseg_add_target(cd, ex->handler);
-               (void) dseg_add_unique_address(cd, ex->catchtype.any);
-       }
 
        /* save return address and used callee saved registers */
 
        savedregs_bitmask = 0;
 
-       if (!jd->isleafmethod)
+       if (!code_is_leafmethod(code))
                savedregs_bitmask = (1<<REG_LR);
 
        for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--)
@@ -250,7 +232,10 @@ bool codegen_emit(jitdata *jd)
                else {
                        if (!md->params[i].inmemory) {
                                if (!(var->flags & INMEMORY)) {
-                                       M_CAST_INT_TO_FLT_TYPED(t, s1, var->vv.regoff);
+                                       if (IS_2_WORD_TYPE(t))
+                                               M_CAST_L2D(s1, var->vv.regoff);
+                                       else
+                                               M_CAST_I2F(s1, var->vv.regoff);
                                }
                                else {
                                        if (IS_2_WORD_TYPE(t))
@@ -278,7 +263,7 @@ bool codegen_emit(jitdata *jd)
 #if defined(ENABLE_THREADS)
        /* call monitorenter function */
 
-       if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
+       if (checksync && code_is_synchronized(code)) {
                /* stack offset for monitor argument */
 
                s1 = rd->memuse * 8;
@@ -293,7 +278,7 @@ bool codegen_emit(jitdata *jd)
                /* get the correct lock object */
 
                if (m->flags & ACC_STATIC) {
-                       disp = dseg_add_address(cd, &m->class->object.header);
+                       disp = dseg_add_address(cd, &m->clazz->object.header);
                        M_DSEG_LOAD(REG_A0, disp);
                }
                else {
@@ -390,18 +375,21 @@ bool codegen_emit(jitdata *jd)
 
                        /* add line number */
                        if (iptr->line != currentline) {
-                               dseg_addlinenumber(cd, iptr->line);
+                               linenumbertable_list_entry_add(cd, iptr->line);
                                currentline = iptr->line;
                        }
 
                        MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 
-                       /* the big switch */
-                       switch (iptr->opc) {
-               case ICMD_NOP:        /* ... ==> ...                                  */
+               /* the big switch */
+               switch (iptr->opc) {
+
+               case ICMD_NOP:        /* ...  ==> ...                                 */
+               case ICMD_POP:        /* ..., value  ==> ...                          */
+               case ICMD_POP2:       /* ..., value, value  ==> ...                   */
                        break;
 
-       /* constant operations ************************************************/
+               /* constant operations ************************************************/
 
                case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 
@@ -419,9 +407,6 @@ bool codegen_emit(jitdata *jd)
                                patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
                                                    iptr->sx.val.c.ref, disp);
 
-                               if (opt_showdisassemble)
-                                       M_NOP;
-
                                M_DSEG_LOAD(d, disp);
                        }
                        else {
@@ -482,19 +467,11 @@ bool codegen_emit(jitdata *jd)
                        break;
 
                case ICMD_ASTORE:
+
                        if (!(iptr->flags.bits & INS_FLAG_RETADDR))
                                emit_copy(jd, iptr);
                        break;
 
-               /* pop operations *****************************************************/
-
-               /* attention: double and longs are only one entry in CACAO ICMDs      */
-
-               case ICMD_POP:        /* ..., value  ==> ...                          */
-               case ICMD_POP2:       /* ..., value, value  ==> ...                   */
-
-                       break;
-
 
                /* integer operations *************************************************/
 
@@ -922,7 +899,7 @@ bool codegen_emit(jitdata *jd)
 
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_MNFS(d, s1);
+                       M_FNEG(s1, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -931,7 +908,7 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_ADFS(d, s1, s2);
+                       M_FADD(s1, s2, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -940,7 +917,7 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_SUFS(d, s1, s2);
+                       M_FSUB(s1, s2, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -949,7 +926,7 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_MUFS(d, s1, s2);
+                       M_FMUL(s1, s2, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -957,13 +934,14 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_DVFS(d, s1, s2);
+                       M_FDIV(s1, s2, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
                /* ATTENTION: Jave does not want IEEE behaviour in FREM, do
                   not use this */
 
+#if 0
                case ICMD_FREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
@@ -972,12 +950,13 @@ bool codegen_emit(jitdata *jd)
                        M_RMFS(d, s1, s2);
                        emit_store_dst(jd, iptr, d);
                        break;
+#endif
 
                case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_MNFD(d, s1);
+                       M_DNEG(s1, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -986,7 +965,7 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_ADFD(d, s1, s2);
+                       M_DADD(s1, s2, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -995,7 +974,7 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_SUFD(d, s1, s2);
+                       M_DSUB(s1, s2, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1004,7 +983,7 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_MUFD(d, s1, s2);
+                       M_DMUL(s1, s2, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1013,13 +992,14 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_DVFD(d, s1, s2);
+                       M_DDIV(s1, s2, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
                /* ATTENTION: Jave does not want IEEE behaviour in DREM, do
                   not use this */
 
+#if 0
                case ICMD_DREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
@@ -1028,12 +1008,13 @@ bool codegen_emit(jitdata *jd)
                        M_RMFD(d, s1, s2);
                        emit_store_dst(jd, iptr, d);
                        break;
+#endif
 
                case ICMD_I2F:       /* ..., value  ==> ..., (float) value            */
 
                        s1 = emit_load_s1(jd, iptr, REG_ITMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_FLTS(d, s1);
+                       M_CVTIF(s1, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1041,7 +1022,7 @@ bool codegen_emit(jitdata *jd)
 
                        s1 = emit_load_s1(jd, iptr, REG_ITMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_FLTD(d, s1);
+                       M_CVTID(s1, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1050,10 +1031,12 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
                        /* this uses round towards zero, as Java likes it */
-                       M_FIX(d, s1);
+                       M_CVTFI(s1, d);
+#if !defined(__VFP_FP__)
                        /* this checks for NaN; to return zero as Java likes it */
-                       M_CMF(s1, 0x8);
+                       M_FCMP(s1, 0x8);
                        M_MOVVS_IMM(0, d);
+#endif
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1062,10 +1045,12 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
                        /* this uses round towards zero, as Java likes it */
-                       M_FIX(d, s1);
+                       M_CVTDI(s1, d);
+#if !defined(__VFP_FP__)
                        /* this checks for NaN; to return zero as Java likes it */
-                       M_CMF(s1, 0x8);
+                       M_DCMP(s1, 0x8);
                        M_MOVVS_IMM(0, d);
+#endif
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1073,7 +1058,7 @@ bool codegen_emit(jitdata *jd)
 
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
-                       M_MVFS(d,s1);
+                       M_CVTDF(s1, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1081,7 +1066,7 @@ bool codegen_emit(jitdata *jd)
 
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP2);
-                       M_MVFD(d,s1);
+                       M_CVTFD(s1, d);
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1090,8 +1075,11 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
-                       M_CMF(s2, s1);
+                       M_FCMP(s2, s1);
                        M_MOV_IMM(d, 0);
+#if defined(__VFP_FP__)
+                       M_FMSTAT; /* on VFP we need to transfer the flags */
+#endif
                        M_SUBGT_IMM(d, d, 1);
                        M_ADDLT_IMM(d, d, 1);
                        emit_store_dst(jd, iptr, d);
@@ -1102,8 +1090,11 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
-                       M_CMF(s2, s1);
+                       M_DCMP(s2, s1);
                        M_MOV_IMM(d, 0);
+#if defined(__VFP_FP__)
+                       M_FMSTAT; /* on VFP we need to transfer the flags */
+#endif
                        M_SUBGT_IMM(d, d, 1);
                        M_ADDLT_IMM(d, d, 1);
                        emit_store_dst(jd, iptr, d);
@@ -1114,8 +1105,11 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
-                       M_CMF(s1, s2);
+                       M_FCMP(s1, s2);
                        M_MOV_IMM(d, 0);
+#if defined(__VFP_FP__)
+                       M_FMSTAT; /* on VFP we need to transfer the flags */
+#endif
                        M_SUBLT_IMM(d, d, 1);
                        M_ADDGT_IMM(d, d, 1);
                        emit_store_dst(jd, iptr, d);
@@ -1126,8 +1120,11 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
                        s2 = emit_load_s2(jd, iptr, REG_FTMP2);
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
-                       M_CMF(s1, s2);
+                       M_DCMP(s1, s2);
                        M_MOV_IMM(d, 0);
+#if defined(__VFP_FP__)
+                       M_FMSTAT; /* on VFP we need to transfer the flags */
+#endif
                        M_SUBLT_IMM(d, d, 1);
                        M_ADDGT_IMM(d, d, 1);
                        emit_store_dst(jd, iptr, d);
@@ -1143,7 +1140,7 @@ bool codegen_emit(jitdata *jd)
                        s1 = emit_load_s1(jd, iptr, REG_ITMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
                        /* implicit null-pointer check */
-                       M_ILD_INTERN(d, s1, OFFSET(java_arrayheader, size));
+                       M_ILD_INTERN(d, s1, OFFSET(java_array_t, size));
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1155,7 +1152,7 @@ bool codegen_emit(jitdata *jd)
                        /* implicit null-pointer check */
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
-                       M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray, data[0]));
+                       M_LDRSB(d, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1167,7 +1164,7 @@ bool codegen_emit(jitdata *jd)
                        /* implicit null-pointer check */
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
-                       M_LDRH(d, REG_ITMP1, OFFSET(java_chararray, data[0]));
+                       M_LDRH(d, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1179,7 +1176,7 @@ bool codegen_emit(jitdata *jd)
                        /* implicit null-pointer check */
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
-                       M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray, data[0]));
+                       M_LDRSH(d, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1191,7 +1188,7 @@ bool codegen_emit(jitdata *jd)
                        /* implicit null-pointer check */
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
-                       M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray, data[0]));
+                       M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1203,7 +1200,7 @@ bool codegen_emit(jitdata *jd)
                        /* implicit null-pointer check */
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
-                       M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray, data[0]));
+                       M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1216,10 +1213,10 @@ bool codegen_emit(jitdata *jd)
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
 #if !defined(ENABLE_SOFTFLOAT)
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
+                       M_FLD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
 #else
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
-                       M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray, data[0]));
+                       M_ILD_INTERN(d, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
 #endif
                        emit_store_dst(jd, iptr, d);
                        break;
@@ -1233,10 +1230,10 @@ bool codegen_emit(jitdata *jd)
                        M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
 #if !defined(ENABLE_SOFTFLOAT)
                        d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                       M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
+                       M_DLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
 #else
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP12_PACKED);
-                       M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray, data[0]));
+                       M_LLD_INTERN(d, REG_ITMP3, OFFSET(java_doublearray_t, data[0]));
 #endif
                        emit_store_dst(jd, iptr, d);
                        break;
@@ -1249,7 +1246,7 @@ bool codegen_emit(jitdata *jd)
                        /* implicit null-pointer check */
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
-                       M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray, data[0]));
+                       M_LDR_INTERN(d, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
                        emit_store_dst(jd, iptr, d);
                        break;
 
@@ -1261,7 +1258,7 @@ bool codegen_emit(jitdata *jd)
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        s3 = emit_load_s3(jd, iptr, REG_ITMP3);
                        M_ADD(REG_ITMP1, s1, s2); /* REG_ITMP1 = s1 + 1 * s2 */
-                       M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray, data[0]));
+                       M_STRB(s3, REG_ITMP1, OFFSET(java_bytearray_t, data[0]));
                        break;
 
                case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
@@ -1272,7 +1269,7 @@ bool codegen_emit(jitdata *jd)
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        s3 = emit_load_s3(jd, iptr, REG_ITMP3);
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
-                       M_STRH(s3, REG_ITMP1, OFFSET(java_chararray, data[0]));
+                       M_STRH(s3, REG_ITMP1, OFFSET(java_chararray_t, data[0]));
                        break;
 
                case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
@@ -1283,7 +1280,7 @@ bool codegen_emit(jitdata *jd)
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        s3 = emit_load_s3(jd, iptr, REG_ITMP3);
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 1)); /* REG_ITMP1 = s1 + 2 * s2 */
-                       M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray, data[0]));
+                       M_STRH(s3, REG_ITMP1, OFFSET(java_shortarray_t, data[0]));
                        break;
 
                case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
@@ -1294,7 +1291,7 @@ bool codegen_emit(jitdata *jd)
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        s3 = emit_load_s3(jd, iptr, REG_ITMP3);
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
-                       M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray, data[0]));
+                       M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_intarray_t, data[0]));
                        break;
 
                case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
@@ -1305,7 +1302,7 @@ bool codegen_emit(jitdata *jd)
                        emit_arrayindexoutofbounds_check(cd, iptr, s1, s2);
                        M_ADD(REG_ITMP3, s1, REG_LSL(s2, 3)); /* REG_ITMP3 = s1 + 8 * s2 */
                        s3 = emit_load_s3(jd, iptr, REG_ITMP12_PACKED);
-                       M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray, data[0]));
+                       M_LST_INTERN(s3, REG_ITMP3, OFFSET(java_longarray_t, data[0]));
                        break;
 
                case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
@@ -1317,10 +1314,10 @@ bool codegen_emit(jitdata *jd)
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
 #if !defined(ENABLE_SOFTFLOAT)
                        s3 = emit_load_s3(jd, iptr, REG_FTMP1);
-                       M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
+                       M_FST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
 #else
                        s3 = emit_load_s3(jd, iptr, REG_ITMP3);
-                       M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray, data[0]));
+                       M_IST_INTERN(s3, REG_ITMP1, OFFSET(java_floatarray_t, data[0]));
 #endif
                        break;
 
@@ -1333,10 +1330,10 @@ bool codegen_emit(jitdata *jd)
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 3)); /* REG_ITMP1 = s1 + 8 * s2 */
 #if !defined(ENABLE_SOFTFLOAT)
                        s3 = emit_load_s3(jd, iptr, REG_FTMP1);
-                       M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
+                       M_DST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
 #else
                        s3 = emit_load_s3(jd, iptr, REG_ITMP23_PACKED);
-                       M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray, data[0]));
+                       M_LST_INTERN(s3, REG_ITMP1, OFFSET(java_doublearray_t, data[0]));
 #endif
                        break;
 
@@ -1354,7 +1351,7 @@ bool codegen_emit(jitdata *jd)
                        M_INTMOVE(s3, REG_A1);
 
                        /* call builtin function */
-                       disp = dseg_add_functionptr(cd, BUILTIN_canstore);
+                       disp = dseg_add_functionptr(cd, BUILTIN_FAST_canstore);
                        M_DSEG_BRANCH(disp);
 
                        /* recompute pv */
@@ -1362,14 +1359,14 @@ bool codegen_emit(jitdata *jd)
                        M_RECOMPUTE_PV(s1);
 
                        /* check resturn value of builtin */
-                       emit_exception_check(cd, iptr);
+                       emit_arraystore_check(cd, iptr);
 
                        /* finally store address into array */
                        s1 = emit_load_s1(jd, iptr, REG_ITMP1);
                        s2 = emit_load_s2(jd, iptr, REG_ITMP2);
                        s3 = emit_load_s3(jd, iptr, REG_ITMP3);
                        M_ADD(REG_ITMP1, s1, REG_LSL(s2, 2)); /* REG_ITMP1 = s1 + 4 * s2 */
-                       M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray, data[0]));
+                       M_STR_INTERN(s3, REG_ITMP1, OFFSET(java_objectarray_t, data[0]));
                        break;
 
                case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
@@ -1380,21 +1377,15 @@ bool codegen_emit(jitdata *jd)
                                disp      = dseg_add_unique_address(cd, NULL);
 
                                patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
-
-                               if (opt_showdisassemble)
-                                       M_NOP;
                        }
                        else {
                                fi        = iptr->sx.s23.s3.fmiref->p.field;
                                fieldtype = fi->type;
                                disp      = dseg_add_address(cd, fi->value);
 
-                               if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
+                               if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
                                        patcher_add_patch_ref(jd, PATCHER_initialize_class,
-                                                           fi->class, 0);
-
-                                       if (opt_showdisassemble)
-                                               M_NOP;
+                                                           fi->clazz, 0);
                                }
                        }
 
@@ -1439,21 +1430,15 @@ bool codegen_emit(jitdata *jd)
                                disp      = dseg_add_unique_address(cd, NULL);
 
                                patcher_add_patch_ref(jd, PATCHER_get_putstatic, uf, disp);
-
-                               if (opt_showdisassemble)
-                                       M_NOP;
                        }
                        else {
                                fi        = iptr->sx.s23.s3.fmiref->p.field;
                                fieldtype = fi->type;
                                disp      = dseg_add_address(cd, fi->value);
 
-                               if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
+                               if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->clazz)) {
                                        patcher_add_patch_ref(jd, PATCHER_initialize_class,
-                                                           fi->class, 0);
-
-                                       if (opt_showdisassemble)
-                                               M_NOP;
+                                                           fi->clazz, 0);
                                }
                        }
 
@@ -1517,9 +1502,6 @@ bool codegen_emit(jitdata *jd)
                                uf = iptr->sx.s23.s3.uf;
 
                                patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
-
-                               if (opt_showdisassemble)
-                                       M_NOP;
                        }
 
                        switch (fieldtype) {
@@ -1605,9 +1587,6 @@ bool codegen_emit(jitdata *jd)
                                uf = iptr->sx.s23.s3.uf;
 
                                patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
-
-                               if (opt_showdisassemble)
-                                       M_NOP;
                        }
 
                        switch (fieldtype) {
@@ -1647,9 +1626,6 @@ bool codegen_emit(jitdata *jd)
                        if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
                                patcher_add_patch_ref(jd, PATCHER_resolve_class,
                                                                        iptr->sx.s23.s2.uc, 0);
-
-                               if (opt_showdisassemble)
-                                       M_NOP;
                        }
                        disp = dseg_add_functionptr(cd, asm_handle_exception);
                        M_DSEG_LOAD(REG_ITMP3, disp);
@@ -2069,7 +2045,7 @@ bool codegen_emit(jitdata *jd)
 #if !defined(ENABLE_SOFTFLOAT)
                        REPLACEMENT_POINT_RETURN(cd, iptr);
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
-                       M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT);
+                       M_CAST_F2I(s1, REG_RESULT);
                        goto ICMD_RETURN_do;
 #endif
 
@@ -2085,7 +2061,7 @@ bool codegen_emit(jitdata *jd)
 #if !defined(ENABLE_SOFTFLOAT)
                        REPLACEMENT_POINT_RETURN(cd, iptr);
                        s1 = emit_load_s1(jd, iptr, REG_FTMP1);
-                       M_CAST_FLT_TO_INT_TYPED(VAROP(iptr->s1)->type, s1, REG_RESULT_PACKED);
+                       M_CAST_D2L(s1, REG_RESULT_PACKED);
                        goto ICMD_RETURN_do;
 #endif
 
@@ -2104,9 +2080,6 @@ bool codegen_emit(jitdata *jd)
                        if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
                                patcher_add_patch_ref(jd, PATCHER_resolve_class,
                                                                        iptr->sx.s23.s2.uc, 0);
-
-                               if (opt_showdisassemble)
-                                       M_NOP;
                        }
                        goto ICMD_RETURN_do;
 
@@ -2123,7 +2096,7 @@ bool codegen_emit(jitdata *jd)
 #if defined(ENABLE_THREADS)
                        /* call monitorexit function */
 
-                       if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
+                       if (checksync && code_is_synchronized(code)) {
                                /* stack offset for monitor argument */
 
                                s1 = rd->memuse * 8;
@@ -2169,7 +2142,7 @@ bool codegen_emit(jitdata *jd)
                        /* restore callee saved registers + do return */
 
                        if (savedregs_bitmask) {
-                               if (!jd->isleafmethod) {
+                               if (!code_is_leafmethod(code)) {
                                        savedregs_bitmask &= ~(1<<REG_LR);
                                        savedregs_bitmask |= (1<<REG_PC);
                                }
@@ -2178,7 +2151,7 @@ bool codegen_emit(jitdata *jd)
 
                        /* if LR was not on stack, we need to return manually */
 
-                       if (jd->isleafmethod)
+                       if (code_is_leafmethod(code))
                                M_MOV(REG_PC, REG_LR);
                        break;
 
@@ -2247,7 +2220,10 @@ bool codegen_emit(jitdata *jd)
                                else {
                                        if (!md->params[s3].inmemory) {
                                                s1 = emit_load(jd, iptr, var, REG_FTMP1);
-                                               M_CAST_FLT_TO_INT_TYPED(var->type, s1, d);
+                                               if (IS_2_WORD_TYPE(var->type))
+                                                       M_CAST_D2L(s1, d);
+                                               else
+                                                       M_CAST_F2I(s1, d);
                                        }
                                        else {
                                                s1 = emit_load(jd, iptr, var, REG_FTMP1);
@@ -2262,7 +2238,12 @@ bool codegen_emit(jitdata *jd)
 
                        switch (iptr->opc) {
                        case ICMD_BUILTIN:
-                               disp = dseg_add_functionptr(cd, bte->fp);
+
+                               if (bte->stub == NULL) {
+                                       disp = dseg_add_functionptr(cd, bte->fp);
+                               } else {
+                                       disp = dseg_add_functionptr(cd, bte->stub);
+                               }
 
                                M_DSEG_LOAD(REG_PV, disp); /* pointer to built-in-function */
 
@@ -2272,8 +2253,6 @@ bool codegen_emit(jitdata *jd)
                                M_MOV(REG_PC, REG_PV);
                                s1 = (s4) (cd->mcodeptr - cd->mcodebase);
                                M_RECOMPUTE_PV(s1);
-
-                               emit_exception_check(cd, iptr);
                                break;
 
                        case ICMD_INVOKESPECIAL:
@@ -2286,9 +2265,6 @@ bool codegen_emit(jitdata *jd)
 
                                        patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
                                                                                um, disp);
-
-                                       if (opt_showdisassemble)
-                                               M_NOP;
                                }
                                else
                                        disp = dseg_add_address(cd, lm->stubroutine);
@@ -2307,9 +2283,6 @@ bool codegen_emit(jitdata *jd)
                                if (lm == NULL) {
                                        patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
 
-                                       if (opt_showdisassemble)
-                                               M_NOP;
-
                                        s1 = 0;
                                }
                                else
@@ -2333,16 +2306,13 @@ bool codegen_emit(jitdata *jd)
                                if (lm == NULL) {
                                        patcher_add_patch_ref(jd, PATCHER_invokeinterface, um, 0);
 
-                                       if (opt_showdisassemble)
-                                               M_NOP;
-
                                        s1 = 0;
                                        s2 = 0;
                                }
                                else {
                                        s1 = OFFSET(vftbl_t, interfacetable[0]) -
-                                               sizeof(methodptr*) * lm->class->index;
-                                       s2 = sizeof(methodptr) * (lm - lm->class->methods);
+                                               sizeof(methodptr*) * lm->clazz->index;
+                                       s2 = sizeof(methodptr) * (lm - lm->clazz->methods);
                                }
 
                                /* implicit null-pointer check */
@@ -2373,7 +2343,7 @@ bool codegen_emit(jitdata *jd)
                           our ENABLE_SOFTFLOAT define */
                        if (iptr->opc == ICMD_BUILTIN && d != TYPE_VOID && IS_FLT_DBL_TYPE(d)) {
 #if 0 && !defined(NDEBUG)
-                               dolog("BUILTIN that returns float or double (%s.%s)", m->class->name->text, m->name->text);
+                               dolog("BUILTIN that returns float or double (%s.%s)", m->clazz->name->text, m->name->text);
 #endif
                                /* we cannot use this macro, since it is not defined
                                   in ENABLE_SOFTFLOAT M_CAST_FLT_TO_INT_TYPED(d,
@@ -2404,7 +2374,10 @@ bool codegen_emit(jitdata *jd)
 #if !defined(ENABLE_SOFTFLOAT)
                                } else {
                                        s1 = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
-                                       M_CAST_INT_TO_FLT_TYPED(VAROP(iptr->dst)->type, REG_RESULT_TYPED(VAROP(iptr->dst)->type), s1);
+                                       if (IS_2_WORD_TYPE(d))
+                                               M_CAST_L2D(REG_RESULT_PACKED, s1);
+                                       else
+                                               M_CAST_I2F(REG_RESULT, s1);
                                }
 #endif /* !defined(ENABLE_SOFTFLOAT) */
 
@@ -2429,9 +2402,6 @@ bool codegen_emit(jitdata *jd)
                                superindex = super->index;
                        }
 
-                               if ((super == NULL) || !(super->flags & ACC_INTERFACE))
-                                       CODEGEN_CRITICAL_SECTION_NEW;
-
                        s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 
                        /* if class is not resolved, check which code to call */
@@ -2444,9 +2414,6 @@ bool codegen_emit(jitdata *jd)
                                patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
                                                    iptr->sx.s23.s3.c.ref, disp);
 
-                               if (opt_showdisassemble)
-                                       M_NOP;
-
                                M_DSEG_LOAD(REG_ITMP2, disp);
                                disp = dseg_add_s4(cd, ACC_INTERFACE);
                                M_DSEG_LOAD(REG_ITMP3, disp);
@@ -2463,9 +2430,6 @@ bool codegen_emit(jitdata *jd)
                                if (super == NULL) {
                                        patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
                                                            iptr->sx.s23.s3.c.ref, disp);
-
-                                       if (opt_showdisassemble)
-                                               M_NOP;
                                }
                                else {
                                        M_TST(s1, s1);
@@ -2530,9 +2494,6 @@ bool codegen_emit(jitdata *jd)
                                        patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
                                                            iptr->sx.s23.s3.c.ref,
                                                                                disp);
-
-                                       if (opt_showdisassemble)
-                                               M_NOP;
                                }
                                else {
                                        disp = dseg_add_address(cd, super->vftbl);
@@ -2544,16 +2505,12 @@ bool codegen_emit(jitdata *jd)
                                M_LDR_INTERN(REG_ITMP2, s1, OFFSET(java_object_t, vftbl));
                                M_DSEG_LOAD(REG_ITMP3, disp);
 
-                               CODEGEN_CRITICAL_SECTION_START;
-
                                M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
                                M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, baseval));
                                M_SUB(REG_ITMP2, REG_ITMP2, REG_ITMP3);
                                M_DSEG_LOAD(REG_ITMP3, disp);
                                M_LDR_INTERN(REG_ITMP3, REG_ITMP3, OFFSET(vftbl_t, diffval));
 
-                               CODEGEN_CRITICAL_SECTION_END;
-
                                M_CMP(REG_ITMP2, REG_ITMP3);
                                emit_classcast_check(cd, iptr, BRANCH_UGT, 0, s1);
 
@@ -2580,9 +2537,6 @@ bool codegen_emit(jitdata *jd)
                                        patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
                                                                                iptr->sx.s23.s3.c.ref,
                                                                                disp);
-
-                                       if (opt_showdisassemble)
-                                               M_NOP;
                                }
                                else
                                        disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
@@ -2621,9 +2575,6 @@ bool codegen_emit(jitdata *jd)
                                superindex = super->index;
                        }
 
-                       if ((super == NULL) || !(super->flags & ACC_INTERFACE))
-                               CODEGEN_CRITICAL_SECTION_NEW;
-
                        s1 = emit_load_s1(jd, iptr, REG_ITMP1);
                        d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 
@@ -2644,9 +2595,6 @@ bool codegen_emit(jitdata *jd)
                                patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_flags,
                                                    iptr->sx.s23.s3.c.ref, disp);
 
-                               if (opt_showdisassemble)
-                                       M_NOP;
-
                                M_DSEG_LOAD(REG_ITMP2, disp);
                                disp = dseg_add_s4(cd, ACC_INTERFACE);
                                M_DSEG_LOAD(REG_ITMP3, disp);
@@ -2668,9 +2616,6 @@ bool codegen_emit(jitdata *jd)
 
                                        patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_index,
                                                            iptr->sx.s23.s3.c.ref, disp);
-
-                                       if (opt_showdisassemble)
-                                               M_NOP;
                                }
                                else {
                                        M_EOR(d, d, d);
@@ -2740,9 +2685,6 @@ bool codegen_emit(jitdata *jd)
 
                                        patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_vftbl,
                                                            iptr->sx.s23.s3.c.ref, disp);
-
-                                       if (opt_showdisassemble)
-                                               M_NOP;
                                }
                                else {
                                        disp = dseg_add_address(cd, super->vftbl);
@@ -2755,14 +2697,10 @@ bool codegen_emit(jitdata *jd)
                                M_LDR_INTERN(REG_ITMP1, s1, OFFSET(java_object_t, vftbl));
                                M_DSEG_LOAD(REG_ITMP2, disp);
 
-                               CODEGEN_CRITICAL_SECTION_START;
-
                                M_LDR_INTERN(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
                                M_LDR_INTERN(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
                                M_LDR_INTERN(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
 
-                               CODEGEN_CRITICAL_SECTION_END;
-
                                M_SUB(REG_ITMP1, REG_ITMP1, REG_ITMP3);
                                M_CMP(REG_ITMP1, REG_ITMP2);
                                /* If d == REG_ITMP2, then it's destroyed */
@@ -2814,9 +2752,6 @@ bool codegen_emit(jitdata *jd)
 
                                patcher_add_patch_ref(jd, PATCHER_resolve_classref_to_classinfo,
                                                                        iptr->sx.s23.s3.c.ref, disp);
-
-                               if (opt_showdisassemble)
-                                       M_NOP;
                        }
                        else
                                disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
@@ -2866,9 +2801,6 @@ bool codegen_emit(jitdata *jd)
 
        } /* for all basic blocks */
 
-       dseg_createlinenumbertable(cd);
-
-
        /* generate traps */
 
        emit_patcher_traps(jd);
@@ -2908,16 +2840,16 @@ void codegen_emit_stub_compiler(jitdata *jd)
 
 *******************************************************************************/
 
-void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
+void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f, int skipparams)
 {
        methodinfo  *m;
        codeinfo    *code;
        codegendata *cd;
-       s4           nativeparams;
        methoddesc  *md;
        s4           i, j;
        s4           t;
-       s4           disp, funcdisp, s1, s2;
+       int          s1, s2;
+       int          disp;
 
        /* get required compiler data */
 
@@ -2928,13 +2860,12 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
        /* initialize variables */
 
        md = m->parseddesc;
-       nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
 
        /* calculate stackframe size */
 
        cd->stackframesize =
                4 +                                                /* return address  */
-               sizeof(stackframeinfo) +                           /* stackframeinfo  */
+               sizeof(stackframeinfo_t) +                         /* stackframeinfo  */
                sizeof(localref_table) +                           /* localref_table  */
                nmd->memuse * 4;                                   /* stack arguments */
 
@@ -2946,12 +2877,9 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
 
        (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
        (void) dseg_add_unique_s4(cd, cd->stackframesize);     /* FrameSize       */
-       (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
        (void) dseg_add_unique_s4(cd, 0);                      /* IsLeaf          */
        (void) dseg_add_unique_s4(cd, 0);                      /* IntSave         */
        (void) dseg_add_unique_s4(cd, 0);                      /* FltSave         */
-       (void) dseg_addlinenumbertablesize(cd);
-       (void) dseg_add_unique_s4(cd, 0);                      /* ExTableSize     */
 
        /* generate stub code */
 
@@ -2963,17 +2891,15 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
                emit_verbosecall_enter(jd);
 #endif
 
-       /* get function address (this must happen before the stackframeinfo) */
-
-       funcdisp = dseg_add_functionptr(cd, f);
+#if defined(ENABLE_GC_CACAO)
+       /* Save callee saved integer registers in stackframeinfo (GC may
+          need to recover them during a collection). */
 
-#if !defined(WITH_STATIC_CLASSPATH)
-       if (f == NULL) {
-               patcher_add_patch_ref(jd, PATCHER_resolve_native_function, m, funcdisp);
+       disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
+               OFFSET(stackframeinfo_t, intregs);
 
-               if (opt_showdisassemble)
-                       M_NOP;
-       }
+       for (i = 0; i < INT_SAV_CNT; i++)
+               M_STR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
 #endif
 
        /* Save integer and float argument registers (these are 4
@@ -2984,11 +2910,8 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
 
        /* create native stackframe info */
 
-       assert(IS_IMM(4*4 + cd->stackframesize));
-       M_ADD_IMM(REG_A0, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
+       M_ADD_IMM(REG_A0, REG_SP, 4*4);
        M_MOV(REG_A1, REG_PV);
-       M_ADD_IMM(REG_A2, REG_SP, 4*4 + cd->stackframesize);
-       M_LDR_INTERN(REG_A3, REG_SP, 4*4 + cd->stackframesize - SIZEOF_VOID_P);
        disp = dseg_add_functionptr(cd, codegen_start_native_call);
        M_DSEG_BRANCH(disp);
 
@@ -2997,6 +2920,11 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
        s1 = (s4) (cd->mcodeptr - cd->mcodebase);
        M_RECOMPUTE_PV(s1);
 
+       /* remember class argument */
+
+       if (m->flags & ACC_STATIC)
+               M_MOV(REG_ITMP3, REG_RESULT);
+
        /* Restore integer and float argument registers (these are 4
           registers, stack is 8-byte aligned). */
 
@@ -3006,7 +2934,7 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
        /* copy or spill arguments to new locations */
        /* ATTENTION: the ARM has only integer argument registers! */
 
-       for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
+       for (i = md->paramcount - 1, j = i + skipparams; i >= 0; i--, j--) {
                t = md->paramtypes[i].type;
 
                if (!md->params[i].inmemory) {
@@ -3049,21 +2977,24 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
                }
        }
 
-       /* put class into second argument register */
+       /* Handle native Java methods. */
 
-       if (m->flags & ACC_STATIC) {
-               disp = dseg_add_address(cd, m->class);
-               M_DSEG_LOAD(REG_A1, disp);
-       }
+       if (m->flags & ACC_NATIVE) {
+               /* put class into second argument register */
 
-       /* put env into first argument register */
+               if (m->flags & ACC_STATIC)
+                       M_MOV(REG_A1, REG_ITMP3);
 
-       disp = dseg_add_address(cd, _Jv_env);
-       M_DSEG_LOAD(REG_A0, disp);
+               /* put env into first argument register */
 
-       /* do the native function call */
+               disp = dseg_add_address(cd, _Jv_env);
+               M_DSEG_LOAD(REG_A0, disp);
+       }
 
-       M_DSEG_BRANCH(funcdisp);
+       /* Call the native function. */
+
+       disp = dseg_add_functionptr(cd, f);
+       M_DSEG_BRANCH(disp);
 
        /* recompute pv */
        /* TODO: this is only needed because of the tracer ... do we
@@ -3077,7 +3008,7 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
        /* this depends on gcc; it is independent from our ENABLE_SOFTFLOAT define */
        if (md->returntype.type != TYPE_VOID && IS_FLT_DBL_TYPE(md->returntype.type)) {
 #if 0 && !defined(NDEBUG)
-               dolog("NATIVESTUB that returns float or double (%s.%s)", m->class->name->text, m->name->text);
+               dolog("NATIVESTUB that returns float or double (%s.%s)", m->clazz->name->text, m->name->text);
 #endif
                /* we cannot use this macro, since it is not defined in ENABLE_SOFTFLOAT */
                /* M_CAST_FLT_TO_INT_TYPED(md->returntype.type, REG_FRESULT, REG_RESULT_TYPED(md->returntype.type)); */
@@ -3101,7 +3032,8 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
 
        M_STMFD(BITMASK_RESULT, REG_SP);
 
-       M_ADD_IMM(REG_A0, REG_SP, 2*4 + cd->stackframesize - SIZEOF_VOID_P);
+       M_ADD_IMM(REG_A0, REG_SP, 2*4);
+       M_MOV(REG_A1, REG_PV);
        disp = dseg_add_functionptr(cd, codegen_finish_native_call);
        M_DSEG_BRANCH(disp);
        s1 = (s4) (cd->mcodeptr - cd->mcodebase);
@@ -3110,6 +3042,17 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
        M_MOV(REG_ITMP1_XPTR, REG_RESULT);
        M_LDMFD(BITMASK_RESULT, REG_SP);
 
+#if defined(ENABLE_GC_CACAO)
+       /* restore callee saved int registers from stackframeinfo (GC might have  */
+       /* modified them during a collection).                                    */
+
+       disp = cd->stackframesize - SIZEOF_VOID_P - sizeof(stackframeinfo_t) +
+               OFFSET(stackframeinfo_t, intregs);
+
+       for (i = 0; i < INT_SAV_CNT; i++)
+               M_LDR_INTERN(abi_registers_integer_saved[i], REG_SP, disp + i * 4);
+#endif
+
        /* finish stub code, but do not yet return to caller */
 
        M_ADD_IMM_EXT_MUL4(REG_SP, REG_SP, cd->stackframesize / 4 - 1);
@@ -3127,10 +3070,6 @@ void codegen_emit_stub_native(jitdata *jd, methoddesc *nmd, functionptr f)
        disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
        M_DSEG_LOAD(REG_ITMP3, disp);       /* load asm exception handler address */
        M_MOV(REG_PC, REG_ITMP3);           /* jump to asm exception handler      */
-
-       /* generate patcher stubs */
-
-       emit_patcher_traps(jd);
 }