/* 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.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: codegen.c 8318 2007-08-16 10:05:34Z michi $
-
*/
#include "threads/lock-common.h"
-#include "vm/builtin.h"
-#include "vm/exceptions.h"
+#include "vm/jit/builtin.hpp"
+#include "vm/exceptions.hpp"
#include "vm/global.h"
-#include "vm/vm.h"
+#include "vm/loader.hpp"
+#include "vm/options.h"
+#include "vm/vm.hpp"
+#include "vm/jit/abi.h"
#include "vm/jit/asmpart.h"
-#include "vm/jit/codegen-common.h"
+#include "vm/jit/codegen-common.hpp"
#include "vm/jit/dseg.h"
-#include "vm/jit/emit-common.h"
-#include "vm/jit/jit.h"
-#include "vm/jit/md.h"
+#include "vm/jit/emit-common.hpp"
+#include "vm/jit/jit.hpp"
+#include "vm/jit/linenumbertable.h"
#include "vm/jit/methodheader.h"
#include "vm/jit/parse.h"
-#include "vm/jit/patcher-common.h"
+#include "vm/jit/patcher-common.hpp"
#include "vm/jit/reg.h"
#if defined(ENABLE_LSRA)
#include "vm/jit/allocator/lsra.h"
#endif
-#include "vmcore/loader.h"
-#include "vmcore/options.h"
-
/* codegen_emit ****************************************************************
varinfo *var;
basicblock *bptr;
instruction *iptr;
- exception_entry *ex;
s4 spilledregs_num;
s4 savedregs_num;
/* 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);
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
(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--)
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))
#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;
/* 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 {
/* 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 */
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 {
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 *************************************************/
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;
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;
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;
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;
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);
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;
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;
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;
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;
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);
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;
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;
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;
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;
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;
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;
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);
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);
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);
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);
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 */
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);
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);
}
}
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);
}
}
uf = iptr->sx.s23.s3.uf;
patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
-
- if (opt_showdisassemble)
- M_NOP;
}
switch (fieldtype) {
uf = iptr->sx.s23.s3.uf;
patcher_add_patch_ref(jd, PATCHER_get_putfield, uf, 0);
-
- if (opt_showdisassemble)
- M_NOP;
}
switch (fieldtype) {
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);
#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
#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
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;
#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;
/* 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);
}
/* 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;
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);
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 */
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:
patcher_add_patch_ref(jd, PATCHER_invokestatic_special,
um, disp);
-
- if (opt_showdisassemble)
- M_NOP;
}
else
disp = dseg_add_address(cd, lm->stubroutine);
if (lm == NULL) {
patcher_add_patch_ref(jd, PATCHER_invokevirtual, um, 0);
- if (opt_showdisassemble)
- M_NOP;
-
s1 = 0;
}
else
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 */
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,
#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) */
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 */
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);
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);
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);
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);
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);
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);
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);
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);
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);
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 */
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);
} /* for all basic blocks */
- dseg_createlinenumbertable(cd);
-
-
/* generate traps */
emit_patcher_traps(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 */
/* 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 */
(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 */
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
/* 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);
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). */
/* 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) {
}
}
- /* 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, VM_get_jnienv());
+ 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
/* 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)); */
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);
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);
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);
}
projects / cacao.git / blobdiff