* src/vm/jit/tools: Removed.
[cacao.git] / src / vm / jit / m68k / codegen.c
index 824ebe5b0c34b56382f5fe8000809763c3bbaddd..b3ecefddb1d3fe303e5fc69bc29b31e9f5604898 100644 (file)
@@ -30,6 +30,7 @@
 #include "config.h"
 
 #include <assert.h>
+#include <stdint.h>
 
 #include "md-abi.h"
 #include "md-os.h"
@@ -109,17 +110,19 @@ bool codegen_emit(jitdata *jd)
 
                savedregs_num += (INT_SAV_CNT - rd->savintreguse);
                savedregs_num += (ADR_SAV_CNT - rd->savadrreguse);
-               savedregs_num += (FLT_SAV_CNT - rd->savfltreguse) * 2;
+               savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 
                cd->stackframesize = rd->memuse + savedregs_num;
        
-               /* we always add 3 words, 
-                * 1 word the lock word, which may be unused and resides @ rd->memuse * 4
-                * + 2 words to either save the return value for LOCK_monitor_exit @ rd->memuse * 4 + 4
+               /* we always add 2 stack slots.
+                * 1 word the lock word, which may be unused and resides @ rd->memuse * 8
+                * + 2 words to either save the return value for LOCK_monitor_exit @ rd->memuse * 8 + 8
                 * on the other hand we could use 2 words when a builtin returns a doulbe which are
                 * returned in %d0, %d1 and need to be stored onto the stack and read in used a fmovemd
-                * so we always _need_ at least 2 words, and this keeps the code simple */
-               cd->stackframesize += 3;        
+                * so we always _need_ at least 2 slots, and this keeps the code simple */
+               cd->stackframesize += 2;        
+
+               cd->stackframesize *= 8;        /* we use 8 byte stack slots */
 
 #if 0
 #if defined(ENABLE_THREADS)
@@ -136,10 +139,10 @@ bool codegen_emit(jitdata *jd)
        
                /* create method header */
                (void) dseg_add_unique_address(cd, code);              /* CodeinfoPointer */
-               (void) dseg_add_unique_s4(cd, cd->stackframesize * 4); /* FrameSize       */
+               (void) dseg_add_unique_s4(cd, cd->stackframesize);         /* FrameSize       */
 #if defined(ENABLE_THREADS)
                if (checksync && (m->flags & ACC_SYNCHRONIZED))
-                       (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 4);/* IsSync         */
+                       (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8);/* IsSync         */
                else
 #endif
                (void) dseg_add_unique_s4(cd, 0);                      /* IsSync          */
@@ -169,19 +172,19 @@ bool codegen_emit(jitdata *jd)
                emit_verbosecall_enter(jd);
 #endif
                /* create stack frame */
-               M_AADD_IMM(-(cd->stackframesize*4), REG_SP);
+               M_AADD_IMM(-(cd->stackframesize), REG_SP);
 
                /* save used callee saved registers */
                p = cd->stackframesize;
                for (i=INT_SAV_CNT-1; i>=rd->savintreguse; --i) {
-                       p--; M_IST(rd->savintregs[i], REG_SP, p*4);
+                       p-=8; M_IST(rd->savintregs[i], REG_SP, p);
                }
                for (i=ADR_SAV_CNT-1; i>=rd->savadrreguse; --i) {
-                       p--; M_AST(rd->savadrregs[i], REG_SP, p*4);
+                       p-=8; M_AST(rd->savadrregs[i], REG_SP, p);
                }
 #if !defined(ENABLE_SOFTFLOAT)
                for (i=FLT_SAV_CNT-1; i>=rd->savfltreguse; --i) {
-                       p-=2; M_FSTORE(rd->savfltregs[i], REG_SP, p*4);
+                       p-=8; M_FSTORE(rd->savfltregs[i], REG_SP, p);
                }       
 #else
                assert(FLT_SAV_CNT == 0);
@@ -214,22 +217,17 @@ bool codegen_emit(jitdata *jd)
                        case TYPE_INT:
                                if (!IS_INMEMORY(var->flags)) {      /* stack arg -> register */
                                        if (IS_2_WORD_TYPE(t))  {
-                                               M_LLD(var->vv.regoff, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                               M_LLD(var->vv.regoff, REG_SP, cd->stackframesize + s1 + 4);
                                        } else {
-                                               M_ILD(var->vv.regoff, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                               M_ILD(var->vv.regoff, REG_SP, cd->stackframesize + s1 + 4);
                                        }
                                } else {                             /* stack arg -> spilled  */
-#if 1
-                                       M_ILD(REG_ITMP1, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                       M_ILD(REG_ITMP1, REG_SP, cd->stackframesize + s1 + 4);
                                        M_IST(REG_ITMP1, REG_SP, var->vv.regoff);
                                        if (IS_2_WORD_TYPE(t)) {
-                                               M_ILD(REG_ITMP1, REG_SP, cd->stackframesize * 4 + s1 + 4 + 4);
+                                               M_ILD(REG_ITMP1, REG_SP, cd->stackframesize  + s1 + 4 + 4);
                                                M_IST(REG_ITMP1, REG_SP, var->vv.regoff + 4);
                                        }
-#else
-                                       /* Reuse Memory Position on Caller Stack */
-                                       var->vv.regoff = cd->stackframesize * 4 + s1;
-#endif
                                } 
                                break;
 #if !defined(ENABLE_SOFTFLOAT)
@@ -237,37 +235,27 @@ bool codegen_emit(jitdata *jd)
                        case TYPE_DBL:
                                if (!IS_INMEMORY(var->flags)) {      /* stack-arg -> register */
                                        if (IS_2_WORD_TYPE(t))  {
-                                               M_DLD(var->vv.regoff, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                               M_DLD(var->vv.regoff, REG_SP, cd->stackframesize + s1 + 4);
                                        } else {
-                                               M_FLD(var->vv.regoff, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                               M_FLD(var->vv.regoff, REG_SP, cd->stackframesize + s1 + 4);
                                        }
                                } else {                             /* stack-arg -> spilled  */
-#if 1
                                        if (IS_2_WORD_TYPE(t)) {
-                                               M_DLD(REG_FTMP1, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                               M_DLD(REG_FTMP1, REG_SP, cd->stackframesize + s1 + 4);
                                                M_DST(REG_FTMP1, REG_SP, var->vv.regoff);
                                        } else {
-                                               M_FLD(REG_FTMP1, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                               M_FLD(REG_FTMP1, REG_SP, cd->stackframesize + s1 + 4);
                                                M_FST(REG_FTMP1, REG_SP, var->vv.regoff);
                                        }
-#else
-                                       /* Reuse Memory Position on Caller Stack */
-                                       var->vv.regoff = cd->stackframesize * 4 + s1;
-#endif
                                }
                                break;
 #endif /* SOFTFLOAT */
                        case TYPE_ADR:
                                if (!IS_INMEMORY(var->flags)) {      /* stack-arg -> register */
-                                       M_ALD(var->vv.regoff, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                       M_ALD(var->vv.regoff, REG_SP, cd->stackframesize + s1 + 4);
                                } else {                             /* stack-arg -> spilled  */
-#if 1
-                                       M_ALD(REG_ATMP1, REG_SP, cd->stackframesize * 4 + s1 + 4);
+                                       M_ALD(REG_ATMP1, REG_SP, cd->stackframesize + s1 + 4);
                                        M_AST(REG_ATMP1, REG_SP, var->vv.regoff);
-#else
-                               /* Reuse Memory Position on Caller Stack */
-                               var->vv.regoff = cd->stackframesize * 4 + s1;
-#endif
                                }
                                break;
                        default: assert(0);
@@ -281,13 +269,13 @@ bool codegen_emit(jitdata *jd)
                        M_AMOV_IMM((&m->class->object.header), REG_ATMP1);
                } else  {
                        /* for non-static case the first arg is the object */
-                       M_ALD(REG_ATMP1, REG_SP, cd->stackframesize*4 + 4);
+                       M_ALD(REG_ATMP1, REG_SP, cd->stackframesize + 4);
                        M_ATST(REG_ATMP1);
                        M_BNE(2);
                        M_TRAP(M68K_EXCEPTION_HARDWARE_NULLPOINTER);
                }
 
-               M_AST(REG_ATMP1, REG_SP, rd->memuse * 4);
+               M_AST(REG_ATMP1, REG_SP, rd->memuse * 8);
                M_AST(REG_ATMP1, REG_SP, 0 * 4);
                M_JSR_IMM(LOCK_monitor_enter);
        }
@@ -1128,21 +1116,27 @@ bool codegen_emit(jitdata *jd)
 
 
                /* MEMORY *************************************************************/
-               case ICMD_GETSTATIC:
-                       if (INSTRUCTION_IS_UNRESOLVED(iptr))    {
+
+               case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
+
+                       if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
                                uf        = iptr->sx.s23.s3.uf;
                                fieldtype = uf->fieldref->parseddesc.fd->type;
-                               codegen_addpatchref(cd, PATCHER_get_putstatic, uf, 0);
-                       } else  {
-                               fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
+                               disp      = 0;
 
+                               codegen_addpatchref(cd, PATCHER_get_putstatic, uf, 0);
+                       }
+                       else {
+                               fi        = iptr->sx.s23.s3.fmiref->p.field;
                                fieldtype = fi->type;
+                               disp      = (intptr_t) fi->value;
+
                                if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
-                                       codegen_addpatchref(cd, PATCHER_initialize_class, fi->class, 0);
+                                       codegen_addpatchref(cd, PATCHER_initialize_class, fi->class,
+                                                                               0);
                                }
-
-                               disp = (ptrint) &(fi->value);
                        }
+
                        M_AMOV_IMM(disp, REG_ATMP1);
                        switch (fieldtype) {
 #if defined(ENABLE_SOFTFLOAT)
@@ -1182,15 +1176,18 @@ bool codegen_emit(jitdata *jd)
                        if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
                                uf        = iptr->sx.s23.s3.uf;
                                fieldtype = uf->fieldref->parseddesc.fd->type;
+                               disp      = 0;
 
                                codegen_addpatchref(cd, PATCHER_get_putstatic, uf, 0);
-                       } else {
+                       }
+                       else {
                                fi        = iptr->sx.s23.s3.fmiref->p.field;
                                fieldtype = fi->type;
-                               disp      = &(fi->value);
+                               disp      = (intptr_t) fi->value;
 
                                if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class))
-                                       codegen_addpatchref(cd, PATCHER_initialize_class, fi->class, 0);
+                                       codegen_addpatchref(cd, PATCHER_initialize_class, fi->class,
+                                                                               0);
                        }
                
                        M_AMOV_IMM(disp, REG_ATMP1);
@@ -1887,7 +1884,7 @@ nowperformreturn:
 #if defined(ENABLE_THREADS)
                        /* call lock_monitor_exit */
                        if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
-                               M_ILD(REG_ITMP3, REG_SP, rd->memuse * 4);
+                               M_ILD(REG_ITMP3, REG_SP, rd->memuse * 8);
 
                                /* we need to save the proper return value */
                                /* we do not care for the long -> doubel convert space here */
@@ -1896,21 +1893,21 @@ nowperformreturn:
                                case ICMD_DRETURN:
 #endif
                                case ICMD_LRETURN:
-                                       M_LST(REG_RESULT_PACKED, REG_SP, rd->memuse * 4 + 4);
+                                       M_LST(REG_RESULT_PACKED, REG_SP, rd->memuse * 8 + 8);
                                        break;
 #if defined(ENABLE_SOFTFLOAT)
                                case ICMD_FRETURN:
 #endif
                                case ICMD_IRETURN:
                                case ICMD_ARETURN:
-                                       M_IST(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
+                                       M_IST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
                                        break;
 #if !defined(ENABLE_SOFTFLOAT)
                                case ICMD_FRETURN:
-                                       M_FST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
+                                       M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
                                        break;
                                case ICMD_DRETURN:
-                                       M_DST(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
+                                       M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
                                        break;
 #endif
                                }
@@ -1925,21 +1922,21 @@ nowperformreturn:
                                case ICMD_DRETURN:
 #endif
                                case ICMD_LRETURN:
-                                       M_LLD(REG_RESULT_PACKED, REG_SP, rd->memuse * 4 + 4);
+                                       M_LLD(REG_RESULT_PACKED, REG_SP, rd->memuse * 8 + 8);
                                        break;
 #if defined(ENABLE_SOFTFLOAT)
                                case ICMD_FRETURN:
 #endif
                                case ICMD_IRETURN:
                                case ICMD_ARETURN:
-                                       M_ILD(REG_RESULT , REG_SP, rd->memuse * 4 + 4);
+                                       M_ILD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
                                        break;
 #if !defined(ENABLE_SOFTFLOAT)
                                case ICMD_FRETURN:
-                                       M_FLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
+                                       M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
                                        break;
                                case ICMD_DRETURN:
-                                       M_DLD(REG_FRESULT, REG_SP, rd->memuse * 4 + 4);
+                                       M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
                                        break;
 #endif
                                }
@@ -1960,18 +1957,18 @@ nowperformreturn:
                        /* restore saved registers                                        */
 
                        for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
-                               p--; M_ILD(rd->savintregs[i], REG_SP, p * 4);
+                               p-=8; M_ILD(rd->savintregs[i], REG_SP, p);
                        }
                        for (i=ADR_SAV_CNT-1; i>=rd->savadrreguse; --i) {
-                               p--; M_ALD(rd->savadrregs[i], REG_SP, p*4);
+                               p-=8; M_ALD(rd->savadrregs[i], REG_SP, p);
                        }
 #if !defined(ENABLE_SOFTFLOAT)
                        for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
-                               p -= 2; M_FLOAD(rd->savfltregs[i], REG_SP, p * 4);
+                               p-=8; M_FLOAD(rd->savfltregs[i], REG_SP, p);
                        }
 #endif
                        /* deallocate stack                                               */
-                       M_AADD_IMM(cd->stackframesize*4, REG_SP);
+                       M_AADD_IMM(cd->stackframesize, REG_SP);
                        M_RET;
                        }
                        break;
@@ -2381,7 +2378,6 @@ nowperformreturn:
 
        /* generate stubs */
        emit_patcher_stubs(jd);
-       REPLACEMENT_EMIT_STUBS(jd);
 
        return true;
 }