A number of things in one commit:

1) Added a "*showmem" "wizard" command to get a dump of all memory
   being used by tiles in the database.
2) Made a slight correction to the way magic detects exact overlap
   of instances of the same cell.  This probably does not make any
   actual difference in practice.
3) Corrected an uninitialized variable in dbReComputeBboxFunc().
4) Changes DBSrCellPlaneArea() to use a static BPEnum variable, so
   that it does not waste time allocating and freeing memory for
   the same thing over and over again.
5) Corrected a memory leak in the tech file "extract" section that
   loses memory every time the extraction style is changed.
6) Corrected the tile join routines to fix a bad memory leak in the
   tile allocation and recovery---a fix which was mentioned in issue
   #414 but which had not yet been implemented.  This has now been
   tested and confirmed to work.

VERSION

@@ -1 +1 @@
-8.3.572
+8.3.574

cif/CIFgen.c

@@ -1516,6 +1516,7 @@ cifBloatAllFunc(
 	}
 	else
 	{
+	    if (op->co_distance > 0)
 		GeoClip(&area, &clipArea);
 	    DBNMPaintPlane(cifPlane, TiGetTypeExact(t), &area,
 			CIFPaintTable, (PaintUndoInfo *) NULL);

cif/CIFint.h

@@ -367,6 +367,9 @@ extern CellUse *CIFDummyUse;		/* Used to dummy up a CellUse for a
 					 * def.
 					 */
 
+extern Plane *CIFTotalPlanes[];		/* Exported for diagnostics */
+extern Plane *CIFComponentPlanes[];	/* Exported for diagnostics */
+
 /* Valid values of CIFWarningLevel (see cif.h) */
 
 typedef enum {CIF_WARN_DEFAULT, CIF_WARN_NONE, CIF_WARN_ALIGN,

commands/CmdWizard.c

@@ -47,6 +47,10 @@ static const char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magi
 #include "utils/utils.h"
 #include "textio/txcommands.h"
 
+/* For diagnostics */
+#include "cif/CIFint.h"
+#include "database/databaseInt.h"
+
 /* C99 compat */
 #include "extract/extract.h"
 
@@ -189,6 +193,233 @@ CmdExtractTest(
 }
 #endif
 
+/*
+ * ----------------------------------------------------------------------------
+ *
+ * tileCountProc --
+ *
+ *	Routine to count tiles.
+ *
+ * Return:
+ *	0 to keep the search going
+ *
+ * Side effects:
+ *	Keeps count in clientData
+ *
+ * ----------------------------------------------------------------------------
+ */
+
+int
+tileCountProc(
+    Tile *tile,
+    int *tcount)
+{
+    (*tcount)++;
+    return 0;
+}
+
+/*
+ * ----------------------------------------------------------------------------
+ *
+ * showMem --
+ * CmdShowmem --
+ *
+ * Usage:
+ *
+ *	showmem [outfile]
+ *
+ * Display all the (principle) internal memory usage for tiles, including
+ * all cell defs, and all CIF generated planes.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	May write to a disk file.
+ *
+ * ----------------------------------------------------------------------------
+ */
+
+void
+showMem(
+    FILE *outf,		/* File to which information is to be output */
+    bool verbose)	/* If TRUE, output detailed erase table */
+{
+    int ttotal, ttotal1, ttotal2;
+    int i;
+    Plane *plane;
+    CellDef *def;
+    int pNum;
+    HashSearch hs;
+    HashEntry *entry;
+
+    fprintf(outf, "Tile memory usage summary\n");
+    fprintf(outf, "Technology %s\n", DBTechName);
+
+    /* Search every cell def (including internal ones), count tiles,
+     * and add up the tile memory usage on every plane.
+     */
+
+    /* Search the CIFPlanes and count tiles. */
+    /* CIFPlanes, CIFTotalPlanes, CIFComponentPlanes */
+
+    ttotal2 = 0;
+    if (CIFCurStyle != NULL)
+    {
+	fprintf(outf, "\nCIFPlanes:\n");
+	ttotal1 = 0;
+	for (i = 0; i < MAXCIFLAYERS; i++)
+	{
+	    plane = CIFPlanes[i];
+	    if (plane != NULL)
+	    {
+		ttotal = 0;
+		DBSrPaintArea((Tile *)NULL, plane, &TiPlaneRect,
+			&DBAllTypeBits, tileCountProc, &ttotal);
+		ttotal1 += ttotal;
+
+		if (CIFCurStyle->cs_layers[i])
+		    fprintf(outf, "   layer %s: %ld\n",
+				CIFCurStyle->cs_layers[i]->cl_name,
+				(long)ttotal * (long)sizeof(Tile));
+		else
+		    fprintf(outf, "   layer %d: %d\n", i,
+				(long)ttotal * (long)sizeof(Tile));
+	    }
+	}
+	fprintf(outf, "   Subtotal: %ld bytes\n",
+			(long)ttotal1 * (long)sizeof(Tile));
+	ttotal2 += ttotal1;
+
+	fprintf(outf, "\nCIFTotalPlanes\n");
+	ttotal1 = 0;
+	for (i = 0; i < MAXCIFLAYERS; i++)
+	{
+	    plane = CIFTotalPlanes[i];
+	    if (plane != NULL)
+	    {
+		ttotal = 0;
+		DBSrPaintArea((Tile *)NULL, plane, &TiPlaneRect,
+			&DBAllTypeBits, tileCountProc, &ttotal);
+		ttotal1 += ttotal;
+
+		if (CIFCurStyle->cs_layers[i])
+		    fprintf(outf, "   layer %s: %ld\n",
+				CIFCurStyle->cs_layers[i]->cl_name,
+				(long)ttotal * (long)sizeof(Tile));
+		else
+		    fprintf(outf, "   layer %d: %d\n", i,
+				(long)ttotal * (long)sizeof(Tile));
+	    }
+	}
+	fprintf(outf, "   Subtotal: %ld bytes\n",
+			(long)ttotal1 * (long)sizeof(Tile));
+	ttotal2 += ttotal1;
+
+	fprintf(outf, "\nCIFComponentPlanes\n");
+	ttotal1 = 0;
+	for (i = 0; i < MAXCIFLAYERS; i++)
+	{
+	    plane = CIFComponentPlanes[i];
+	    if (plane != NULL)
+	    {
+		ttotal = 0;
+		DBSrPaintArea((Tile *)NULL, plane, &TiPlaneRect,
+			&DBAllTypeBits, tileCountProc, &ttotal);
+		ttotal1 += ttotal;
+
+		if (CIFCurStyle->cs_layers[i])
+		    fprintf(outf, "   layer %s: %ld bytes\n",
+				CIFCurStyle->cs_layers[i]->cl_name,
+				(long)ttotal * (long)sizeof(Tile));
+		else
+		    fprintf(outf, "   layer %d: %ld bytes\n", i,
+				(long)ttotal * (long)sizeof(Tile));
+	    }
+	}
+	fprintf(outf, "   Subtotal: %ld bytes\n",
+			(long)ttotal1 * (long)sizeof(Tile));
+	ttotal2 += ttotal1;
+    }
+    else
+    {
+	fprintf(outf, "CIF planes:  No memory usage\n");
+    }
+
+    HashStartSearch(&hs);
+    while ((entry = HashNext(&dbCellDefTable, &hs)) != NULL)
+    {
+	def = (CellDef *)HashGetValue(entry);
+	if (def != (CellDef *)NULL)
+	{
+	    fprintf(outf, "\nCell def %s\n", def->cd_name);
+	    ttotal1 = 0;
+	    for (pNum = 0; pNum < DBNumPlanes; pNum++)
+	    {
+		plane = def->cd_planes[pNum];
+		if (plane != NULL)
+		{
+		    ttotal = 0;
+		    DBSrPaintArea((Tile *)NULL, plane, &TiPlaneRect,
+				&DBAllTypeBits, tileCountProc, &ttotal);
+
+		    fprintf(outf, "   plane %s: %ld bytes\n",
+				DBPlaneLongNameTbl[pNum],
+				(long)ttotal * (long)sizeof(Tile));
+		    ttotal1 += ttotal;
+		}
+	    }
+	    fprintf(outf, "   Subtotal: %ld bytes\n",
+			(long)ttotal1 * (long)sizeof(Tile));
+	    ttotal2 += ttotal1;
+	}
+    }
+    fprintf(outf, "   Grand total: %ld bytes\n",
+			(long)ttotal2 * (long)sizeof(Tile));
+}
+
+void
+CmdShowmem(
+    MagWindow *w,
+    TxCommand *cmd)
+{
+    FILE *outf;
+    bool verbose;
+    char **av;
+    int ac;
+
+    if (cmd->tx_argc > 3)
+    {
+	TxError("Usage: showmem [-v] [file]\n");
+	return;
+    }
+
+    verbose = FALSE;
+    av = &cmd->tx_argv[1];
+    ac = cmd->tx_argc - 1;
+
+    outf = stdout;
+    if (ac > 0 && strcmp(av[0], "-v") == 0)
+    {
+	verbose = TRUE;
+	av++, ac--;
+    }
+
+    if (ac > 0)
+    {
+	outf = fopen(av[0], "w");
+	if (outf == (FILE *) NULL)
+	{
+	    perror(av[0]);
+	    TxError("Nothing written\n");
+	    return;
+	}
+    }
+
+    showMem(outf, verbose);
+    if (outf != stdout)
+	(void) fclose(outf);
+}
 
 /*
  * ----------------------------------------------------------------------------

database/DBcell.c

@@ -109,14 +109,23 @@ DBCellFindDup(use, parent)
     while ((dupUse = BPEnumNext(&bpe)))
 	if (dupUse->cu_def == use->cu_def)
 	    /* Transforms must be equal---Aligned bounding boxes are
-	     * an insufficient measure of exact overlap.
+	     * an insufficient measure of exact overlap.  Also, array
+	     * counts and separation must match for arrayed devices
 	     */
 	    if ((dupUse->cu_transform.t_a == use->cu_transform.t_a) &&
 			(dupUse->cu_transform.t_b == use->cu_transform.t_b) &&
 			(dupUse->cu_transform.t_c == use->cu_transform.t_c) &&
 			(dupUse->cu_transform.t_d == use->cu_transform.t_d) &&
 			(dupUse->cu_transform.t_e == use->cu_transform.t_e) &&
-			(dupUse->cu_transform.t_f == use->cu_transform.t_f))
+			(dupUse->cu_transform.t_f == use->cu_transform.t_f) &&
+			((dupUse->cu_xhi > dupUse->cu_xlo) &&
+				((dupUse->cu_xhi - dupUse->cu_xlo) ==
+				(use->cu_xhi - use->cu_xlo)) &&
+				(dupUse->cu_xsep == use->cu_xsep)) &&
+			((dupUse->cu_yhi > dupUse->cu_ylo) &&
+				((dupUse->cu_yhi - dupUse->cu_ylo) ==
+				(use->cu_yhi - use->cu_ylo)) &&
+				(dupUse->cu_ysep == use->cu_ysep)))
 		break;
 
     BPEnumTerm(&bpe);

database/DBcellbox.c

@@ -619,10 +619,9 @@ dbReComputeBboxFunc(cellDef, boundProc, recurseProc)
     /*
      * Include area of subcells separately
      */
-    if ((foundAny = DBBoundCellPlane(cellDef, &extended, &rect)) > 0)
+    if (!((foundAny = DBBoundCellPlane(cellDef, &extended, &rect)) > 0))
-	area = rect;
-    else
 	extended = GeoNullRect;
+    area = rect;
 
     for (pNum = PL_PAINTBASE; pNum < DBNumPlanes; pNum++)
 	if (pNum != PL_DRC_CHECK)

database/DBcellsrch.c

@@ -85,11 +85,13 @@ struct seeTypesArg
 int
 DBSrCellPlaneArea(BPlane *plane, const Rect *rect, int (*func)(), ClientData arg)
 {
+    BPEnum sbpe;
     BPEnum *bpe;
     CellUse *use;
     int rval = 0;
 
-    bpe = (BPEnum *)mallocMagic(sizeof(BPEnum));
+    /* bpe = (BPEnum *)mallocMagic(sizeof(BPEnum)); */
+    bpe = &sbpe;
     BPEnumInit(bpe, plane, rect, BPE_OVERLAP, "DBSrCellPlaneArea");
 
     while ((use = BPEnumNext(bpe)))
@@ -102,7 +104,7 @@ DBSrCellPlaneArea(BPlane *plane, const Rect *rect, int (*func)(), ClientData arg
     }
 
     BPEnumTerm(bpe);
-    freeMagic(bpe);
+    /* freeMagic(bpe); */
     return rval;
 }
 

database/databaseInt.h

@@ -194,6 +194,8 @@ typedef struct
 extern int dbNumSavedRules;
 extern Rule dbSavedRules[];
 
+extern HashTable dbCellDefTable;	/* Exported for diagnostics */
+
 /* -------------------- Internal procedure headers -------------------- */
 
 extern void DBUndoPutLabel();

dbwind/DBWcommands.c

@@ -75,6 +75,7 @@ extern void CmdExtResis();
 extern void CmdPsearch();
 extern void CmdPlowTest();
 extern void CmdShowtech();
+extern void CmdShowmem();
 extern void CmdTilestats();
 extern void CmdTsearch();
 extern void CmdWatch();
@@ -208,6 +209,9 @@ DBWInitCommands()
     WindAddCommand(DBWclientID,
 	"*psearch plane count	invoke point search over box area",
 	CmdPsearch, FALSE);
+    WindAddCommand(DBWclientID,
+	"*showmem [file]	print internal memory usage",
+	CmdShowmem, FALSE);
     WindAddCommand(DBWclientID,
 	"*showtech [file]	print internal technology tables",
 	CmdShowtech, FALSE);

extract/ExtTech.c

@@ -1119,6 +1119,7 @@ ExtTechInit()
     if (ExtCurStyle != NULL)
     {
 	extTechStyleInit(ExtCurStyle);
+	freeMagic(ExtCurStyle);
 	ExtCurStyle = NULL;
     }
 

tiles/tile.c

@@ -20,6 +20,10 @@
 static const char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/tiles/tile.c,v 1.1.1.1 2008/02/03 20:43:50 tim Exp $";
 #endif	/* not lint */
 
+/* Disable memory mapped tile allocation here and in tiles/tile.h
+ * #undef HAVE_SYS_MMAN_H
+ */
+
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
@@ -816,6 +820,7 @@ TiJoinX1(Tile **delay1, Tile *tile1, Tile *tile2, Plane *plane)
 {
     TiFreeIf(*delay1);
     TiJoinX(tile1, tile2, plane);
+    *delay1 = tile2;
 }
 
 void
@@ -823,6 +828,7 @@ TiJoinY1(Tile **delay1, Tile *tile1, Tile *tile2, Plane *plane)
 {
     TiFreeIf(*delay1);
     TiJoinY(tile1, tile2, plane);
+    *delay1 = tile2;
 }
 #endif
 

tiles/tile.h

@@ -23,6 +23,14 @@
 #ifndef _MAGIC__TILES__TILE_H
 #define	_MAGIC__TILES__TILE_H
 
+/* Disable memory mapped tile allocation here and in tiles/tile.h
+ * #undef HAVE_SYS_MMAN_H
+ */
+
+
+#ifndef HAVE_SYS_MMAN_H
+#include "utils/malloc.h"
+#endif
 #ifndef _MAGIC__UTILS__MAGIC_H
 #include "utils/magic.h"
 #endif
@@ -299,6 +307,7 @@ TiJoinX1(Tile **delay1, Tile *tile1, Tile *tile2, Plane *plane)
 {
     TiFreeIf(*delay1);
     TiJoinX(tile1, tile2, plane);
+    *delay1 = tile2;
 }
 
 inline void
@@ -306,6 +315,7 @@ TiJoinY1(Tile **delay1, Tile *tile1, Tile *tile2, Plane *plane)
 {
     TiFreeIf(*delay1);
     TiJoinY(tile1, tile2, plane);
+    *delay1 = tile2;
 }
 #else
 /* To support older compilers (that don't auto emit based on -O level) */