/* src/vm/jit/show.cpp - showing the intermediate representation

   Copyright (C) 1996-2005, 2006, 2007, 2008
   CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO

   This file is part of CACAO.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.

*/


#include "config.h"

#include <assert.h>
#include <stdint.h>

#include "vm/types.h"

#include "mm/memory.hpp"

#include "threads/lock.hpp"

#include "vm/global.h"
#include "vm/jit/builtin.hpp"
#include "vm/options.h"
#include "vm/string.hpp"
#include "vm/vm.hpp"

#include "vm/jit/abi.h"
#include "vm/jit/jit.hpp"
#include "vm/jit/show.hpp"
#include "vm/jit/disass.h"
#include "vm/jit/stack.h"
#include "vm/jit/parse.hpp"

#if defined(ENABLE_DEBUG_FILTER)
# include <sys/types.h>
# include <regex.h>
# include "threads/thread.hpp"
#endif


/* global variables ***********************************************************/

#if !defined(NDEBUG)
static Mutex mutex;
#endif


/* prototypes *****************************************************************/

#if !defined(NDEBUG)
static void show_variable_intern(jitdata *jd, s4 index, int stage);
#endif


/* show_init *******************************************************************

   Initialized the show subsystem (called by jit_init).

*******************************************************************************/

#if !defined(NDEBUG)
bool show_init(void)
{
#if defined(ENABLE_DEBUG_FILTER)
	show_filters_init();
#endif

	/* everything's ok */

	return true;
}
#endif


#if !defined(NDEBUG)
const char *show_jit_type_names[] = {
	"INT",
	"LNG",
	"FLT",
	"DBL",
	"ADR",
	"??5",
	"??6",
	"??7",
	"RET"
};

const char show_jit_type_letters[] = {
	'I',
	'L',
	'F',
	'D',
	'A',
	'5',
	'6',
	'7',
	'R'
};
#endif


/* show_method *****************************************************************

   Print the intermediate representation of a method.

   NOTE: Currently this function may only be called after register allocation!

*******************************************************************************/

#if !defined(NDEBUG)
void show_method(jitdata *jd, int stage)
{
	methodinfo     *m;
	codeinfo       *code;
	codegendata    *cd;
	registerdata   *rd;
	basicblock     *bptr;
	basicblock     *lastbptr;
	exception_entry *ex;
	s4              i, j;
	int             irstage;
#if defined(ENABLE_DISASSEMBLER)
	u1             *pc;
#endif

	/* get required compiler data */

	m    = jd->m;
	code = jd->code;
	cd   = jd->cd;
	rd   = jd->rd;

	// We need to enter a lock here, since the binutils disassembler
	// is not reentrant-able and we could not read functions printed
	// at the same time.
	mutex.lock();

#if defined(ENABLE_INTRP)
	if (opt_intrp)
		irstage = SHOW_PARSE;
	else
#endif
		irstage = stage;

	/* get the last basic block */

	for (lastbptr = jd->basicblocks; lastbptr->next != NULL; lastbptr = lastbptr->next);

	printf("\n");

	method_println(m);

	if (code_is_leafmethod(code))
		printf("LEAFMETHOD\n");

	printf("\nBasic blocks: %d\n", jd->basicblockcount);
	if (stage >= SHOW_CODE) {
		printf("Code length:  %d\n", (lastbptr->mpc - jd->basicblocks[0].mpc));
		printf("Data length:  %d\n", cd->dseglen);
		printf("Stub length:  %d\n", (s4) (code->mcodelength -
										   ((ptrint) cd->dseglen + lastbptr->mpc)));
	}
	printf("Variables:       %d (%d used)\n", jd->varcount, jd->vartop);
	if (stage >= SHOW_STACK)
		printf("Max interfaces:  %d\n", jd->maxinterfaces);
	printf("Max locals:      %d\n", jd->maxlocals);
	printf("Max stack:       %d\n", m->maxstack);
	printf("Linenumbers:     %d\n", m->linenumbercount);
	printf("Branch to entry: %s\n", (jd->branchtoentry) ? "yes" : "no");
	printf("Branch to end:   %s\n", (jd->branchtoend) ? "yes" : "no");
	if (stage >= SHOW_STACK) {
		printf("Number of RETURNs: %d", jd->returncount);
		if (jd->returncount == 1)
			printf(" (block L%03d)", jd->returnblock->nr);
		printf("\n");
	}

	if (stage >= SHOW_PARSE) {
		printf("Exceptions (number=%d):\n", jd->exceptiontablelength);
		for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
			printf("    L%03d ... ", ex->start->nr );
			printf("L%03d  = ", ex->end->nr);
			printf("L%03d", ex->handler->nr);
			printf("  (catchtype: ");
			if (ex->catchtype.any)
				if (IS_CLASSREF(ex->catchtype))
					class_classref_print(ex->catchtype.ref);
				else
					class_print(ex->catchtype.cls);
			else
				printf("ANY");
			printf(")\n");
		}
	}
	
	if (irstage >= SHOW_PARSE && rd && jd->localcount > 0) {
		printf("Local Table:\n");
		for (i = 0; i < jd->localcount; i++) {
			printf("   %3d: ", i);

#if defined(ENABLE_JIT)
# if defined(ENABLE_INTRP)
			if (!opt_intrp) {
# endif
				printf("   (%s) ", show_jit_type_names[VAR(i)->type]);
				if (irstage >= SHOW_REGS)
					show_allocation(VAR(i)->type, VAR(i)->flags, VAR(i)->vv.regoff);
				printf("\n");
# if defined(ENABLE_INTRP)
			}
# endif
#endif /* defined(ENABLE_JIT) */
		}
		printf("\n");
	}

	if (jd->maxlocals > 0 && jd->local_map != NULL) {
		printf("Local Map:\n");
		printf("    index ");
		for (j = 0; j < jd->maxlocals; j++) {
			printf(" [%2d]", j);
		}
		printf("\n");
		for (i = 0; i < 5; i++) {
			printf("    %5s ",show_jit_type_names[i]);
			for (j = 0; j < jd->maxlocals; j++) {
				if (jd->local_map[j*5+i] == UNUSED)
					printf("  -- ");
				else
					printf("%4i ",jd->local_map[j*5+i]);
			}
			printf("\n");
		}
		printf("\n");
	}

	if (jd->maxinterfaces > 0 && jd->interface_map && irstage >= SHOW_STACK) {
		bool exist = false;
		interface_info *mapptr = jd->interface_map;
		
		/* look if there exist any INOUTS */
		for (i = 0; (i < (5 * jd->maxinterfaces)) && !exist; i++, mapptr++)
			exist = (mapptr->flags != UNUSED);

		if (exist) {
			printf("Interface Table: (In/Outvars)\n");
			printf("    depth ");
			for (j = 0; j < jd->maxinterfaces; j++) {
				printf("      [%2d]", j);
			}
			printf("\n");

			for (i = 0; i < 5; i++) {
				printf("    %5s      ",show_jit_type_names[i]);
				for (j = 0; j < jd->maxinterfaces; j++) {
					s4 flags  = jd->interface_map[j*5+i].flags;
					s4 regoff = jd->interface_map[j*5+i].regoff;
					if (flags == UNUSED)
						printf("  --      ");
					else {
						int ch;

						if (irstage >= SHOW_REGS) {
							if (flags & SAVEDVAR) {
								if (flags & INMEMORY)
									ch = 'M';
								else
									ch = 'R';
							}
							else {
								if (flags & INMEMORY)
									ch = 'm';
								else
									ch = 'r';
							}
							printf("%c%03d(", ch, regoff);
							show_allocation(i, flags, regoff);
							printf(") ");
						}
						else {
							if (flags & SAVEDVAR)
								printf("  I       ");
							else
								printf("  i       ");
						}
					}
				}
				printf("\n");
			}
			printf("\n");
		}
	}

	if (rd->memuse && irstage >= SHOW_REGS) {
		int max;

		max = rd->memuse;
		printf("Stack slots (memuse=%d", rd->memuse);
		if (irstage >= SHOW_CODE) {
			printf(", stackframesize=%d", cd->stackframesize);
			max = cd->stackframesize;
		}
		printf("):\n");
		for (i = 0; i < max; ++i) {
			printf("    M%02d = 0x%02x(sp): ", i, i * 8);
			for (j = 0; j < jd->vartop; ++j) {
				varinfo *v = VAR(j);
				if ((v->flags & INMEMORY) && (v->vv.regoff == i)) {
					show_variable(jd, j, irstage);
					putchar(' ');
				}
			}

			printf("\n");

		}
		printf("\n");
	}

	if (!code->patchers->empty()) {
		int number = code->patchers->size();
		printf("Patcher References (number=%d):\n", number);
		patcher_list_show(code);
		printf("\n");
	}

#if defined(ENABLE_REPLACEMENT)
	if (code->rplpoints) {
		printf("Replacement Points:\n");
		replace_show_replacement_points(code);
		printf("\n");
	}
#endif /* defined(ENABLE_REPLACEMENT) */

#if defined(ENABLE_DISASSEMBLER)
	/* show code before first basic block */

	if ((stage >= SHOW_CODE) && JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd)) {
		pc = (u1 *) ((ptrint) code->mcode + cd->dseglen);

		for (; pc < (u1 *) ((ptrint) code->mcode + cd->dseglen + jd->basicblocks[0].mpc);)
			DISASSINSTR(pc);

		printf("\n");
	}
#endif

	/* show code of all basic blocks */

	for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next)
		show_basicblock(jd, bptr, stage);

#if 0 && defined(ENABLE_DISASSEMBLER)
	/* show code after last basic block */

	if (stage >= SHOW_CODE && opt_showdisassemble) {
		printf("\nStubs code:\n");
		printf("Length: %d\n\n", (s4) (code->mcodelength -
									   ((ptrint) cd->dseglen + lastbptr->mpc)));

		pc = (u1 *) ((ptrint) code->mcode + cd->dseglen + lastbptr->mpc);

		for (; (ptrint) pc < ((ptrint) code->mcode + code->mcodelength);)
			DISASSINSTR(pc);

		printf("\n");
	}
#endif

	mutex.unlock();

	/* finally flush the output */

	fflush(stdout);
}
#endif /* !defined(NDEBUG) */


#if !defined(NDEBUG) && defined(ENABLE_INLINING)
static void show_inline_info(jitdata *jd, insinfo_inline *ii, s4 opcode, s4 stage)
{
	s4 *jl;
	s4 n;

	printf("(pt %d+%d+%d st ", 
			ii->throughcount - (ii->stackvarscount - ii->paramcount),
			ii->stackvarscount - ii->paramcount,
			ii->paramcount);
	show_variable_array(jd, ii->stackvars, ii->stackvarscount, stage);

	if (opcode == ICMD_INLINE_START || opcode == ICMD_INLINE_END) {
		printf(" jl ");
		jl = (opcode == ICMD_INLINE_START) ? ii->javalocals_start : ii->javalocals_end;
		n = (opcode == ICMD_INLINE_START) ? ii->method->maxlocals : ii->outer->maxlocals;
		show_javalocals_array(jd, jl, n, stage);
	}

	printf(") ");

#if 0
	printf("(");
	method_print(ii->outer);
	printf(" ==> ");
#endif

	method_print(ii->method);
}
#endif /* !defined(NDEBUG) && defined(ENABLE_INLINING) */


/* show_basicblock *************************************************************

   Print the intermediate representation of a basic block.

   NOTE: Currently this function may only be called after register allocation!

*******************************************************************************/

#if !defined(NDEBUG)
void show_basicblock(jitdata *jd, basicblock *bptr, int stage)
{
	codeinfo    *code;
	codegendata *cd;
	s4           i;
	bool         deadcode;
	instruction *iptr;
	int          irstage;
#if defined(ENABLE_DISASSEMBLER)
	methodinfo  *m;                     /* this is only a dummy               */
	void        *pc;
	s4           linenumber;
	s4           currentlinenumber;
#endif

	/* get required compiler data */

	code = jd->code;
	cd   = jd->cd;

	if (bptr->flags != BBDELETED) {
#if defined(ENABLE_INTRP)
		if (opt_intrp) {
			deadcode = false;
			irstage = SHOW_PARSE;
		}
		else
#endif
		{
			deadcode = (bptr->flags < BBREACHED);
			irstage = stage;
		}

		printf("======== %sL%03d ======== %s(flags: %d, bitflags: %01x, next: %d, type: ",
#if defined(ENABLE_REPLACEMENT)
				(bptr->bitflags & BBFLAG_REPLACEMENT) ? "<REPLACE> " : 
#endif
														"",
			   bptr->nr, 
			   (deadcode && stage >= SHOW_STACK) ? "DEADCODE! " : "",
			   bptr->flags, bptr->bitflags, 
			   (bptr->next) ? (bptr->next->nr) : -1);

		switch (bptr->type) {
		case BBTYPE_STD:
			printf("STD");
			break;
		case BBTYPE_EXH:
			printf("EXH");
			break;
		case BBTYPE_SBR:
			printf("SBR");
			break;
		}

		printf(", icount: %d", bptr->icount);

		if (irstage >= SHOW_CFG) {
			printf(", preds: %d [ ", bptr->predecessorcount);

			for (i = 0; i < bptr->predecessorcount; i++)
				printf("%d ", bptr->predecessors[i]->nr);

			printf("]");
		}

		printf("):");

		if (bptr->original)
			printf(" (clone of L%03d)", bptr->original->nr);
		else {
			basicblock *b = bptr->copied_to;
			if (b) {
				printf(" (copied to ");
				for (; b; b = b->copied_to)
					printf("L%03d ", b->nr);
				printf(")");
			}
		}

		printf("\n");

		if (irstage >= SHOW_CFG) {
			printf("succs: %d [ ", bptr->successorcount);

			for (i = 0; i < bptr->successorcount; i++)
				printf("%d ", bptr->successors[i]->nr);

			printf("]\n");
		}

		if (irstage >= SHOW_STACK) {
			printf("IN:  ");
			show_variable_array(jd, bptr->invars, bptr->indepth, irstage);
			printf(" javalocals: ");
			if (bptr->javalocals)
				show_javalocals_array(jd, bptr->javalocals, bptr->method->maxlocals, irstage);
			else
				printf("null");
			printf("\n");
		}

#if defined(ENABLE_INLINING)
		if (bptr->inlineinfo) {
			printf("inlineinfo: ");
			show_inline_info(jd, bptr->inlineinfo, -1, irstage);
			printf("\n");
		}
#endif /* defined(ENABLE_INLINING) */

#if defined(ENABLE_SSA)
	
		iptr = bptr->phis;

		for (i = 0; i < bptr->phicount; i++, iptr++) {
			printf("%4d:%4d:  ", iptr->line, iptr->flags.bits >> INS_FLAG_ID_SHIFT);

			show_icmd(jd, iptr, deadcode, irstage);
			printf("\n");
		}
#endif

		iptr = bptr->iinstr;

		for (i = 0; i < bptr->icount; i++, iptr++) {
			printf("%4d:%4d:  ", iptr->line, iptr->flags.bits >> INS_FLAG_ID_SHIFT);

			show_icmd(jd, iptr, deadcode, irstage);
			printf("\n");
		}

		if (irstage >= SHOW_STACK) {
			printf("OUT: ");
			show_variable_array(jd, bptr->outvars, bptr->outdepth, irstage);
			printf("\n");
		}

#if defined(ENABLE_DISASSEMBLER)
		if ((stage >= SHOW_CODE) && JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd) &&
			(!deadcode)) 
		{
			printf("\n");
			pc         = (void *) (code->mcode + cd->dseglen + bptr->mpc);
			linenumber = 0;

			if (bptr->next != NULL) {
				for (; pc < (void *) (code->mcode + cd->dseglen + bptr->next->mpc);) {
					currentlinenumber = code->linenumbertable->find(&m, pc);

					if (currentlinenumber != linenumber) {
						linenumber = currentlinenumber;
						printf("%4d:\n", linenumber);
					}

					DISASSINSTR(pc);
				}
			}
			else {
				for (; pc < (void *) (code->mcode + code->mcodelength);) {
					currentlinenumber = code->linenumbertable->find(&m, pc);

					if (currentlinenumber != linenumber) {
						linenumber = currentlinenumber;
						printf("%4d:\n", linenumber);
					}

					DISASSINSTR(pc);
				}
			}
			printf("\n");
		}
#endif
	}
}
#endif /* !defined(NDEBUG) */


/* show_icmd *******************************************************************

   Print the intermediate representation of an instruction.

   NOTE: Currently this function may only be called after register allocation!

*******************************************************************************/

#if !defined(NDEBUG)

#define SHOW_TARGET(target)                                          \
        if (stage >= SHOW_PARSE) {                                   \
            printf("--> L%03d ", (target).block->nr);                \
        }                                                            \
        else {                                                       \
            printf("--> insindex %d ", (target).insindex);           \
        }

#define SHOW_INT_CONST(val)                                          \
        if (stage >= SHOW_PARSE) {                                   \
            printf("%d (0x%08x) ", (int32_t) (val), (int32_t) (val)); \
        }                                                            \
        else {                                                       \
            printf("iconst ");                                       \
        }

#if SIZEOF_VOID_P == 4
#define SHOW_LNG_CONST(val)                                          \
        if (stage >= SHOW_PARSE)                                     \
            printf("%lld (0x%016llx) ", (val), (val));               \
        else                                                         \
            printf("lconst ");
#else
#define SHOW_LNG_CONST(val)                                          \
        if (stage >= SHOW_PARSE)                                     \
            printf("%ld (0x%016lx) ", (val), (val));                 \
        else                                                         \
            printf("lconst ");
#endif

#if SIZEOF_VOID_P == 4
#define SHOW_ADR_CONST(val)                                          \
        if (stage >= SHOW_PARSE)                                     \
            printf("0x%08x ", (ptrint) (val));                       \
        else                                                         \
            printf("aconst ");
#else
#define SHOW_ADR_CONST(val)                                          \
        if (stage >= SHOW_PARSE)                                     \
            printf("0x%016lx ", (ptrint) (val));                     \
        else                                                         \
            printf("aconst ");
#endif

#define SHOW_FLT_CONST(val)                                          \
        if (stage >= SHOW_PARSE) {                                   \
            imm_union v;                                             \
            v.f = (val);                                             \
            printf("%g (0x%08x) ", (val), v.i);                      \
        }                                                            \
        else {                                                       \
            printf("fconst ");                                       \
        }

#if SIZEOF_VOID_P == 4
#define SHOW_DBL_CONST(val)                                          \
        if (stage >= SHOW_PARSE) {                                   \
            imm_union v;                                             \
            v.d = (val);                                             \
            printf("%g (0x%016llx) ", (val), v.l);                   \
        }                                                            \
        else                                                         \
            printf("dconst ");
#else
#define SHOW_DBL_CONST(val)                                          \
        if (stage >= SHOW_PARSE) {                                   \
            imm_union v;                                             \
            v.d = (val);                                             \
            printf("%g (0x%016lx) ", (val), v.l);                    \
        }                                                            \
        else                                                         \
            printf("dconst ");
#endif

#define SHOW_INDEX(index)                                            \
        if (stage >= SHOW_PARSE) {                                   \
            printf("%d ", index);                                    \
        }                                                            \
        else {                                                       \
            printf("index");                                         \
        }

#define SHOW_STRING(val)                                             \
        if (stage >= SHOW_PARSE) {                                   \
            putchar('"');                                            \
            utf_display_printable_ascii(                             \
               javastring_toutf((java_handle_t *)(val), false));     \
            printf("\" ");                                           \
        }                                                            \
        else {                                                       \
            printf("string ");                                       \
        }

#define SHOW_CLASSREF_OR_CLASSINFO(c)                                \
        if (stage >= SHOW_PARSE) {                                   \
            if (IS_CLASSREF(c))                                      \
                class_classref_print(c.ref);                         \
            else                                                     \
                class_print(c.cls);                                  \
            putchar(' ');                                            \
        }                                                            \
        else {                                                       \
            printf("class ");                                        \
        }

#define SHOW_FIELD(fmiref)                                           \
        if (stage >= SHOW_PARSE) {                                   \
            field_fieldref_print(fmiref);                            \
            putchar(' ');                                            \
        }                                                            \
        else {                                                       \
            printf("field ");                                        \
        }

#define SHOW_VARIABLE(v)                                             \
    show_variable(jd, (v), stage)

#define SHOW_S1(iptr)                                                \
        if (stage >= SHOW_STACK) {                                   \
            SHOW_VARIABLE(iptr->s1.varindex);                        \
        }

#define SHOW_S2(iptr)                                                \
        if (stage >= SHOW_STACK) {                                   \
            SHOW_VARIABLE(iptr->sx.s23.s2.varindex);                 \
        }

#define SHOW_S3(iptr)                                                \
    if (stage >= SHOW_STACK) {                                       \
        SHOW_VARIABLE(iptr->sx.s23.s3.varindex);                     \
    }

#define SHOW_DST(iptr)                                               \
    if (stage >= SHOW_STACK) {                                       \
        printf("=> ");                                               \
        SHOW_VARIABLE(iptr->dst.varindex);                           \
    }

#define SHOW_S1_LOCAL(iptr)                                          \
    if (stage >= SHOW_STACK) {                                       \
        printf("L%d ", iptr->s1.varindex);                           \
    }                                                                \
    else {                                                           \
        printf("JavaL%d ", iptr->s1.varindex);                       \
    }

#define SHOW_DST_LOCAL(iptr)                                         \
    if (stage >= SHOW_STACK) {                                       \
        printf("=> L%d ", iptr->dst.varindex);                       \
    }                                                                \
    else {                                                           \
        printf("=> JavaL%d ", iptr->dst.varindex);                   \
    }

void show_allocation(s4 type, s4 flags, s4 regoff)
{
	if (type == TYPE_RET) {
		printf("N/A");
		return;
	}

	if (flags & INMEMORY) {
		printf("M%02d", regoff);
		return;
	}

#ifdef HAS_ADDRESS_REGISTER_FILE
	if (type == TYPE_ADR) {
		printf("R%02d", regoff);
		return;
	}
#endif

	if (IS_FLT_DBL_TYPE(type)) {
		printf("F%02d", regoff);
		return;
	}

#if defined(SUPPORT_COMBINE_INTEGER_REGISTERS)
	if (IS_2_WORD_TYPE(type)) {
# if defined(ENABLE_JIT)
#  if defined(ENABLE_INTRP)
		if (opt_intrp)
			printf("%3d/%3d", GET_LOW_REG(regoff),
					GET_HIGH_REG(regoff));
		else
#  endif
			printf("%3s/%3s", abi_registers_integer_name[GET_LOW_REG(regoff)],
				   abi_registers_integer_name[GET_HIGH_REG(regoff)]);
# else
		printf("%3d/%3d", GET_LOW_REG(regoff),
			   GET_HIGH_REG(regoff));
# endif
		return;
	} 
#endif /* defined(SUPPORT_COMBINE_INTEGER_REGISTERS) */

#if defined(ENABLE_JIT)
# if defined(ENABLE_INTRP)
	if (opt_intrp)
		printf("%3d", regoff);
	else
# endif
		printf("%3s", abi_registers_integer_name[regoff]);
#else
	printf("%3d", regoff);
#endif
}

void show_variable(jitdata *jd, s4 index, int stage)
{
	show_variable_intern(jd, index, stage);
	putchar(' ');
}

static void show_variable_intern(jitdata *jd, s4 index, int stage)
{
	char type;
	char kind;
	varinfo *v;

	if (index < 0 || index >= jd->vartop) {
		printf("<INVALID INDEX:%d>", index);
		return;
	}

	v = VAR(index);

	switch (v->type) {
		case TYPE_INT: type = 'i'; break;
		case TYPE_LNG: type = 'l'; break;
		case TYPE_FLT: type = 'f'; break;
		case TYPE_DBL: type = 'd'; break;
		case TYPE_ADR: type = 'a'; break;
		case TYPE_RET: type = 'r'; break;
		default:       type = '?';
	}

	if (index < jd->localcount) {
		kind = 'L';
		if (v->flags & (PREALLOC | INOUT))
				printf("<INVALID FLAGS!>");
	}
	else {
		if (v->flags & PREALLOC) {
			kind = 'A';
			if (v->flags & INOUT) {
				/* PREALLOC is used to avoid allocation of TYPE_RET */
				if (v->type == TYPE_RET)
					kind = 'i';
				else
					printf("<INVALID FLAGS!>");
			}
		}
		else if (v->flags & INOUT)
			kind = 'I';
		else
			kind = 'T';
	}

	printf("%c%c%d", kind, type, index);

	if (v->flags & SAVEDVAR)
		putchar('!');

	if (stage >= SHOW_REGS || (v->flags & PREALLOC)) {
		putchar('(');
		show_allocation(v->type, v->flags, v->vv.regoff);
		putchar(')');
	}

	if (v->type == TYPE_RET && (v->flags & PREALLOC)) {
		printf("(L%03d)", v->vv.retaddr->nr);
	}
}

static void show_variable_array_intern(jitdata *jd, s4 *vars, int n, int stage,
									   bool javalocals)
{
	int i;
	int nr;

	if (vars == NULL) {
		printf("<null>");
		return;
	}

	printf("[");
	for (i=0; i<n; ++i) {
		if (i)
			putchar(' ');
		if (vars[i] < 0) {
			if (vars[i] == UNUSED)
				putchar('-');
			else if (javalocals) {
				nr = RETADDR_FROM_JAVALOCAL(vars[i]);
				printf("ret(L%03d)", nr);
			}
			else {
				printf("<INVALID INDEX:%d>", vars[i]);
			}
		}
		else
			show_variable_intern(jd, vars[i], stage);
	}
	printf("]");
}

void show_variable_array(jitdata *jd, s4 *vars, int n, int stage)
{
	show_variable_array_intern(jd, vars, n, stage, false);
}

void show_javalocals_array(jitdata *jd, s4 *vars, int n, int stage)
{
	show_variable_array_intern(jd, vars, n, stage, true);
}

void show_icmd(jitdata *jd, instruction *iptr, bool deadcode, int stage)
{
	u2                 opcode;
	branch_target_t   *table;
	lookup_target_t   *lookup;
	constant_FMIref   *fmiref;
	s4                *argp;
	s4                 i;

	/* get the opcode and the condition */

	opcode    =  iptr->opc;

	printf("%s ", icmd_table[opcode].name);

	if (stage < SHOW_PARSE)
		return;

	if (deadcode)
		stage = SHOW_PARSE;

	/* Print the condition for conditional instructions. */

	/* XXX print condition from flags */

	if (iptr->flags.bits & INS_FLAG_UNRESOLVED)
		printf("(UNRESOLVED) ");

	switch (opcode) {

	case ICMD_POP:
	case ICMD_CHECKNULL:
		SHOW_S1(iptr);
		break;

		/* unary */
	case ICMD_ARRAYLENGTH:
	case ICMD_INEG:
	case ICMD_LNEG:
	case ICMD_FNEG:
	case ICMD_DNEG:
	case ICMD_I2L:
	case ICMD_I2F:
	case ICMD_I2D:
	case ICMD_L2I:
	case ICMD_L2F:
	case ICMD_L2D:
	case ICMD_F2I:
	case ICMD_F2L:
	case ICMD_F2D:
	case ICMD_D2I:
	case ICMD_D2L:
	case ICMD_D2F:
	case ICMD_INT2BYTE:
	case ICMD_INT2CHAR:
	case ICMD_INT2SHORT:
		SHOW_S1(iptr);
		SHOW_DST(iptr);
		break;

		/* binary */
	case ICMD_IADD:
	case ICMD_LADD:
	case ICMD_FADD:
	case ICMD_DADD:
	case ICMD_ISUB:
	case ICMD_LSUB:
	case ICMD_FSUB:
	case ICMD_DSUB:
	case ICMD_IMUL:
	case ICMD_LMUL:
	case ICMD_FMUL:
	case ICMD_DMUL:
	case ICMD_IDIV:
	case ICMD_LDIV:
	case ICMD_FDIV:
	case ICMD_DDIV:
	case ICMD_IREM:
	case ICMD_LREM:
	case ICMD_FREM:
	case ICMD_DREM:
	case ICMD_ISHL:
	case ICMD_LSHL:
	case ICMD_ISHR:
	case ICMD_LSHR:
	case ICMD_IUSHR:
	case ICMD_LUSHR:
	case ICMD_IAND:
	case ICMD_LAND:
	case ICMD_IOR:
	case ICMD_LOR:
	case ICMD_IXOR:
	case ICMD_LXOR:
	case ICMD_LCMP:
	case ICMD_FCMPL:
	case ICMD_FCMPG:
	case ICMD_DCMPL:
	case ICMD_DCMPG:
		SHOW_S1(iptr);
		SHOW_S2(iptr);
		SHOW_DST(iptr);
		break;

		/* binary/const INT */
	case ICMD_IADDCONST:
	case ICMD_ISUBCONST:
	case ICMD_IMULCONST:
	case ICMD_IMULPOW2:
	case ICMD_IDIVPOW2:
	case ICMD_IREMPOW2:
	case ICMD_IANDCONST:
	case ICMD_IORCONST:
	case ICMD_IXORCONST:
	case ICMD_ISHLCONST:
	case ICMD_ISHRCONST:
	case ICMD_IUSHRCONST:
	case ICMD_LSHLCONST:
	case ICMD_LSHRCONST:
	case ICMD_LUSHRCONST:
		SHOW_S1(iptr);
		SHOW_INT_CONST(iptr->sx.val.i);	
		SHOW_DST(iptr);
		break;

		/* ?ASTORECONST (trinary/const INT) */
	case ICMD_IASTORECONST:
	case ICMD_BASTORECONST:
	case ICMD_CASTORECONST:
	case ICMD_SASTORECONST:
		SHOW_S1(iptr);
		SHOW_S2(iptr);
		SHOW_INT_CONST(iptr->sx.s23.s3.constval);
		break;

		/* const INT */
	case ICMD_ICONST:
		SHOW_INT_CONST(iptr->sx.val.i);	
		SHOW_DST(iptr);
		break;

		/* binary/const LNG */
	case ICMD_LADDCONST:
	case ICMD_LSUBCONST:
	case ICMD_LMULCONST:
	case ICMD_LMULPOW2:
	case ICMD_LDIVPOW2:
	case ICMD_LREMPOW2:
	case ICMD_LANDCONST:
	case ICMD_LORCONST:
	case ICMD_LXORCONST:
		SHOW_S1(iptr);
		SHOW_LNG_CONST(iptr->sx.val.l);
		SHOW_DST(iptr);
		break;

		/* trinary/const LNG (<= pointer size) */
	case ICMD_LASTORECONST:
		SHOW_S1(iptr);
		SHOW_S2(iptr);
		SHOW_ADR_CONST(iptr->sx.s23.s3.constval);
		break;

		/* const LNG */
	case ICMD_LCONST:
		SHOW_LNG_CONST(iptr->sx.val.l);	
		SHOW_DST(iptr);
		break;

		/* const FLT */
	case ICMD_FCONST:
		SHOW_FLT_CONST(iptr->sx.val.f);	
		SHOW_DST(iptr);
		break;

		/* const DBL */
	case ICMD_DCONST:
		SHOW_DBL_CONST(iptr->sx.val.d);	
		SHOW_DST(iptr);
		break;

		/* const ADR */
	case ICMD_ACONST:
		if (iptr->flags.bits & INS_FLAG_CLASS) {
			SHOW_ADR_CONST(iptr->sx.val.anyptr);
			SHOW_CLASSREF_OR_CLASSINFO(iptr->sx.val.c);
		}
		else if (iptr->sx.val.anyptr == NULL) {
			printf("NULL ");
		}
		else {
			SHOW_ADR_CONST(iptr->sx.val.anyptr);
			SHOW_STRING(iptr->sx.val.stringconst);
		}
		SHOW_DST(iptr);
		break;

	case ICMD_AASTORECONST:
		SHOW_S1(iptr);
		SHOW_S2(iptr);
		printf("%p ", (void*) iptr->sx.s23.s3.constval);
		break;

	case ICMD_GETFIELD:        /* 1 -> 1 */
	case ICMD_PUTFIELD:        /* 2 -> 0 */
 	case ICMD_PUTSTATIC:       /* 1 -> 0 */
	case ICMD_GETSTATIC:       /* 0 -> 1 */
	case ICMD_PUTSTATICCONST:  /* 0 -> 0 */
	case ICMD_PUTFIELDCONST:   /* 1 -> 0 */
		if (opcode != ICMD_GETSTATIC && opcode != ICMD_PUTSTATICCONST) {
			SHOW_S1(iptr);
			if (opcode == ICMD_PUTFIELD) {
				SHOW_S2(iptr);
			}
		}
		INSTRUCTION_GET_FIELDREF(iptr, fmiref);
		SHOW_FIELD(fmiref);

		if (opcode == ICMD_GETSTATIC || opcode == ICMD_GETFIELD) {
			SHOW_DST(iptr);
		}
		break;

	case ICMD_IINC:
		SHOW_S1_LOCAL(iptr);
		SHOW_INT_CONST(iptr->sx.val.i);
		SHOW_DST_LOCAL(iptr);
		break;

	case ICMD_IASTORE:
	case ICMD_SASTORE:
	case ICMD_BASTORE:
	case ICMD_CASTORE:
	case ICMD_LASTORE:
	case ICMD_DASTORE:
	case ICMD_FASTORE:
	case ICMD_AASTORE:
		SHOW_S1(iptr);
		SHOW_S2(iptr);
		SHOW_S3(iptr);
		break;

	case ICMD_IALOAD:
	case ICMD_SALOAD:
	case ICMD_BALOAD:
	case ICMD_CALOAD:
	case ICMD_LALOAD:
	case ICMD_DALOAD:
	case ICMD_FALOAD:
	case ICMD_AALOAD:
		SHOW_S1(iptr);
		SHOW_S2(iptr);
		SHOW_DST(iptr);
		break;

	case ICMD_RET:
		SHOW_S1_LOCAL(iptr);
		if (stage >= SHOW_STACK) {
			printf(" ---> L%03d", iptr->dst.block->nr);
		}
		break;

	case ICMD_ILOAD:
	case ICMD_LLOAD:
	case ICMD_FLOAD:
	case ICMD_DLOAD:
	case ICMD_ALOAD:
		SHOW_S1_LOCAL(iptr);
		SHOW_DST(iptr);
		break;

	case ICMD_ISTORE:
	case ICMD_LSTORE:
	case ICMD_FSTORE:
	case ICMD_DSTORE:
	case ICMD_ASTORE:
		SHOW_S1(iptr);
		SHOW_DST_LOCAL(iptr);
		if (stage >= SHOW_STACK && iptr->sx.s23.s3.javaindex != UNUSED)
			printf(" (javaindex %d)", iptr->sx.s23.s3.javaindex);
		if (iptr->flags.bits & INS_FLAG_RETADDR) {
			printf(" (retaddr L%03d)", RETADDR_FROM_JAVALOCAL(iptr->sx.s23.s2.retaddrnr));
		}
		break;

	case ICMD_NEW:
		SHOW_DST(iptr);
		break;

	case ICMD_NEWARRAY:
		SHOW_DST(iptr);
		break;

	case ICMD_ANEWARRAY:
		SHOW_DST(iptr);
		break;

	case ICMD_MULTIANEWARRAY:
		if (stage >= SHOW_STACK) {
			argp = iptr->sx.s23.s2.args;
			i = iptr->s1.argcount;
			while (i--) {
				SHOW_VARIABLE(*(argp++));
			}
		}
		else {
			printf("argcount=%d ", iptr->s1.argcount);
		}
		class_classref_or_classinfo_print(iptr->sx.s23.s3.c);
		putchar(' ');
		SHOW_DST(iptr);
		break;

	case ICMD_CHECKCAST:
		SHOW_S1(iptr);
		class_classref_or_classinfo_print(iptr->sx.s23.s3.c);
		putchar(' ');
		SHOW_DST(iptr);
		break;

	case ICMD_INSTANCEOF:
		SHOW_S1(iptr);
		SHOW_DST(iptr);
		break;

	case ICMD_INLINE_START:
	case ICMD_INLINE_END:
	case ICMD_INLINE_BODY:
#if defined(ENABLE_INLINING)
		{
			insinfo_inline *ii = iptr->sx.s23.s3.inlineinfo;
			show_inline_info(jd, ii, opcode, stage);
		}
#endif
		break;

	case ICMD_BUILTIN:
		if (stage >= SHOW_STACK) {
			argp = iptr->sx.s23.s2.args;
			i = iptr->s1.argcount;
			while (i--) {
				if ((iptr->s1.argcount - 1 - i) == iptr->sx.s23.s3.bte->md->paramcount)
					printf(" pass-through: ");
				SHOW_VARIABLE(*(argp++));
			}
		}
		printf("%s ", iptr->sx.s23.s3.bte->cname);
		if (iptr->sx.s23.s3.bte->md->returntype.type != TYPE_VOID) {
			SHOW_DST(iptr);
		}
		break;

	case ICMD_INVOKEVIRTUAL:
	case ICMD_INVOKESPECIAL:
	case ICMD_INVOKESTATIC:
	case ICMD_INVOKEINTERFACE:
		if (stage >= SHOW_STACK) {
			methoddesc *md;
			INSTRUCTION_GET_METHODDESC(iptr, md);
			argp = iptr->sx.s23.s2.args;
			i = iptr->s1.argcount;
			while (i--) {
				if ((iptr->s1.argcount - 1 - i) == md->paramcount)
					printf(" pass-through: ");
				SHOW_VARIABLE(*(argp++));
			}
		}
		INSTRUCTION_GET_METHODREF(iptr, fmiref);
		method_methodref_print(fmiref);
		if (fmiref->parseddesc.md->returntype.type != TYPE_VOID) {
			putchar(' ');
			SHOW_DST(iptr);
		}
		break;

	case ICMD_IFEQ:
	case ICMD_IFNE:
	case ICMD_IFLT:
	case ICMD_IFGE:
	case ICMD_IFGT:
	case ICMD_IFLE:
		SHOW_S1(iptr);
		SHOW_INT_CONST(iptr->sx.val.i);	
		SHOW_TARGET(iptr->dst);
		break;

	case ICMD_IF_LEQ:
	case ICMD_IF_LNE:
	case ICMD_IF_LLT:
	case ICMD_IF_LGE:
	case ICMD_IF_LGT:
	case ICMD_IF_LLE:
		SHOW_S1(iptr);
		SHOW_LNG_CONST(iptr->sx.val.l);	
		SHOW_TARGET(iptr->dst);
		break;

	case ICMD_GOTO:
		SHOW_TARGET(iptr->dst);
		break;

	case ICMD_JSR:
		SHOW_TARGET(iptr->sx.s23.s3.jsrtarget);
		SHOW_DST(iptr);
		break;

	case ICMD_IFNULL:
	case ICMD_IFNONNULL:
		SHOW_S1(iptr);
		SHOW_TARGET(iptr->dst);
		break;

	case ICMD_IF_ICMPEQ:
	case ICMD_IF_ICMPNE:
	case ICMD_IF_ICMPLT:
	case ICMD_IF_ICMPGE:
	case ICMD_IF_ICMPGT:
	case ICMD_IF_ICMPLE:

	case ICMD_IF_LCMPEQ:
	case ICMD_IF_LCMPNE:
	case ICMD_IF_LCMPLT:
	case ICMD_IF_LCMPGE:
	case ICMD_IF_LCMPGT:
	case ICMD_IF_LCMPLE:

	case ICMD_IF_ACMPEQ:
	case ICMD_IF_ACMPNE:
		SHOW_S1(iptr);
		SHOW_S2(iptr);
		SHOW_TARGET(iptr->dst);
		break;

	case ICMD_TABLESWITCH:
		SHOW_S1(iptr);
		table = iptr->dst.table;

		i = iptr->sx.s23.s3.tablehigh - iptr->sx.s23.s2.tablelow + 1;

		printf("high=%d low=%d count=%d\n", iptr->sx.s23.s3.tablehigh, iptr->sx.s23.s2.tablelow, i);
		while (--i >= 0) {
			printf("\t\t%d --> ", (int) (table - iptr->dst.table));
			printf("L%03d\n", table->block->nr);
			table++;
		}

		break;

	case ICMD_LOOKUPSWITCH:
		SHOW_S1(iptr);

		printf("count=%d, default=L%03d\n",
			   iptr->sx.s23.s2.lookupcount,
			   iptr->sx.s23.s3.lookupdefault.block->nr);

		lookup = iptr->dst.lookup;
		i = iptr->sx.s23.s2.lookupcount;

		while (--i >= 0) {
			printf("\t\t%d --> L%03d\n",
				   lookup->value,
				   lookup->target.block->nr);
			lookup++;
		}
		break;

	case ICMD_FRETURN:
	case ICMD_IRETURN:
	case ICMD_DRETURN:
	case ICMD_LRETURN:
		SHOW_S1(iptr);
		break;

	case ICMD_ARETURN:
	case ICMD_ATHROW:
		SHOW_S1(iptr);
		if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
			/* XXX this needs more work */
#if 0
			unresolved_class_debug_dump(iptr->sx.s23.s2.uc, stdout);
#endif
		}
		break;

 	case ICMD_COPY:
 	case ICMD_MOVE:
		SHOW_S1(iptr);
		SHOW_DST(iptr);
		break;
	case ICMD_GETEXCEPTION:
		SHOW_DST(iptr);
		break;
#if defined(ENABLE_SSA)	
	case ICMD_PHI:
		printf("[ ");
		for (i = 0; i < iptr->s1.argcount; ++i) {
			SHOW_VARIABLE(iptr->sx.s23.s2.iargs[i]->dst.varindex);
		}
		printf("] ");
		SHOW_DST(iptr);
		if (iptr->flags.bits & (1 << 0)) printf("used ");
		if (iptr->flags.bits & (1 << 1)) printf("redundantAll ");
		if (iptr->flags.bits & (1 << 2)) printf("redundantOne ");
		break;
#endif
	}
	fflush(stdout);
}
#endif /* !defined(NDEBUG) */

/* Debug output filtering */

#if defined(ENABLE_DEBUG_FILTER)

#if !defined(ENABLE_THREADS)
u2 _no_threads_filterverbosecallctr[2] = { 0, 0 };
#endif

struct show_filter {
	/* Boolean indicating if filter is enabled. */
	u1 enabled;
	/* Regular expression the method name is matched against */
	regex_t regex;
	/* Flag set on m->filtermatches if regex matches */
	u1 flag;
};

typedef struct show_filter show_filter_t;

#define SHOW_FILTERS_SIZE 3

/* Array of filters applyed on a method */
static struct show_filter show_filters[SHOW_FILTERS_SIZE];

static void show_filter_init(show_filter_t *cf, const char *str, u1 flag, u1 default_flag, const char *description) {
	int err;
	char err_buf[128];

	if (str) {
		err = regcomp(&cf->regex, str, REG_EXTENDED | REG_NOSUB);
		if (err != 0) {
			regerror(err, &cf->regex, err_buf, sizeof(err_buf));
			vm_abort(
				"Invalid value given for %s: `%s' (%s).", 
				description, str, err_buf
			);
		}
		cf->flag = flag;
		cf->enabled = 1;
	} else {
		cf->flag = default_flag;
		cf->enabled = 0;
	}
}

void show_filters_init(void) {

	show_filter_init(
		show_filters + 0,
		opt_filter_verbosecall_include,
		SHOW_FILTER_FLAG_VERBOSECALL_INCLUDE,
		SHOW_FILTER_FLAG_VERBOSECALL_INCLUDE,
		"verbose call include filter"
	);

	show_filter_init(
		show_filters + 1,
		opt_filter_verbosecall_exclude,
		SHOW_FILTER_FLAG_VERBOSECALL_EXCLUDE,
		0,
		"verbose call exclude filter"
	);

	show_filter_init(
		show_filters + 2,
		opt_filter_show_method,
		SHOW_FILTER_FLAG_SHOW_METHOD,
		SHOW_FILTER_FLAG_SHOW_METHOD,
		"show method filter"
	);
}

/*
 
 (Pseudo)State machine:

 States are INITIAL, INCLUDE1, INCLUDE2, ..., EXCLUDE1, ..., EXCLUDE2, ...

                                                        Enter              Enter
 Enter                                                  Include            Include
 Exclude                                                  | |                | |
  | |    Enter              Enter              Enter      | |     Enter      | |
  | |    Include            Include            Exclude    | |     Exclude    | |
  | v   --------->        ---------->        ---------->  | v   ---------->  | v
INITIAL           INCLUDE1           INCLUDE2           EXCLUDE1           EXCLUDE2
  | ^   <---------        <----------        <----------  | ^   <----------  | ^
  | |    Exit               Exit               Exit       | |     Exit       | |
  | |    Include            Include            Exclude    | |     Exclude    | |
  | |                                                     | |                | |
 Exit                                                    Exit               Exit
 Exclude                                                 Include            Include

  Verbose call scope is active if we are in a INCLUDE state.

  State encoding:

  INITIAL: ctr[0] == 0, ctr[1] == 0
  INCLUDEN: ctr[1] == N, ctr[1] == 0
  EXCLUDEN: ctr[1] == N
*/

void show_filters_apply(methodinfo *m) {
	int i;
	int res;
	char *method_name;
	s4 len;

	/* compose full name of method */

	len = 
		utf_bytes(m->clazz->name) +
		1 +
		utf_bytes(m->name) +
		utf_bytes(m->descriptor) +
		1;

	method_name = MNEW(char, len);

	utf_cat_classname(method_name, m->clazz->name);
	strcat(method_name, ".");
	utf_cat(method_name, m->name);
	utf_cat(method_name, m->descriptor);

	/* reset all flags */

	m->filtermatches = 0;

	for (i = 0; i < SHOW_FILTERS_SIZE; ++i) {
		if (show_filters[i].enabled) {

			res = regexec(&show_filters[i].regex, method_name, 0, NULL, 0);

			if (res == 0) {
				m->filtermatches |= show_filters[i].flag;
			}
		} else {
			/* Default is to show all */
			m->filtermatches |= show_filters[i].flag;
		}
	}

	// Release memory.
	MFREE(method_name, char, len);
}

#define STATE_IS_INITIAL() ((FILTERVERBOSECALLCTR[0] == 0) && (FILTERVERBOSECALLCTR[1] == 0))
#define STATE_IS_INCLUDE() ((FILTERVERBOSECALLCTR[0] > 0) && (FILTERVERBOSECALLCTR[1] == 0))
#define STATE_IS_EXCLUDE() (FILTERVERBOSECALLCTR[1] > 0)
#define EVENT_INCLUDE() (m->filtermatches & SHOW_FILTER_FLAG_VERBOSECALL_INCLUDE)
#define EVENT_EXCLUDE() (m->filtermatches & SHOW_FILTER_FLAG_VERBOSECALL_EXCLUDE)
#define TRANSITION_NEXT_INCLUDE() ++FILTERVERBOSECALLCTR[0]
#define TRANSITION_PREV_INCLUDE() --FILTERVERBOSECALLCTR[0]
#define TRANSITION_NEXT_EXCLUDE() ++FILTERVERBOSECALLCTR[1]
#define TRANSITION_PREV_EXCLUDE() --FILTERVERBOSECALLCTR[1]

#if 0
void dump_state() {
	if (STATE_IS_INITIAL()) printf("<INITIAL>\n");
	else if (STATE_IS_INCLUDE()) printf("<INCLUDE %hd>\n", FILTERVERBOSECALLCTR[0]);
	else if (STATE_IS_EXCLUDE()) printf("<EXCLUDE %hd>\n", FILTERVERBOSECALLCTR[1]);
}
#endif

int show_filters_test_verbosecall_enter(methodinfo *m) {

	int force_show = 0;

	if (STATE_IS_INITIAL()) {
		if (EVENT_INCLUDE()) {
			TRANSITION_NEXT_INCLUDE();
		}
	} else if (STATE_IS_INCLUDE()) {
		if (EVENT_EXCLUDE()) {
			TRANSITION_NEXT_EXCLUDE();
			/* just entered exclude, show this method */
			force_show = 1;
		} else if (EVENT_INCLUDE()) {
			TRANSITION_NEXT_INCLUDE();
		}
	} else if (STATE_IS_EXCLUDE()) {
		if (EVENT_EXCLUDE()) {
			TRANSITION_NEXT_EXCLUDE();
		}
	}

	return STATE_IS_INCLUDE() || force_show;
}

int show_filters_test_verbosecall_exit(methodinfo *m) {

	int force_show = 0;

	if (m) {
		if (STATE_IS_INCLUDE()) {
			if (EVENT_INCLUDE()) {
				TRANSITION_PREV_INCLUDE();
				/* just entered initial, show this method */
				if (STATE_IS_INITIAL()) force_show = 1;
			}
	    } else if (STATE_IS_EXCLUDE()) {
			if (EVENT_EXCLUDE()) {
				TRANSITION_PREV_EXCLUDE();
			}
		}
	}

	return STATE_IS_INCLUDE() || force_show;
}

#endif


/*
 * These are local overrides for various environment variables in Emacs.
 * Please do not remove this and leave it at the end of the file, where
 * Emacs will automagically detect them.
 * ---------------------------------------------------------------------
 * Local variables:
 * mode: c++
 * indent-tabs-mode: t
 * c-basic-offset: 4
 * tab-width: 4
 * End:
 * vim:noexpandtab:sw=4:ts=4:
 */
