Use unlocked I/O for a minor performance improvement on hosts like

[bison.git] / src / closure.c

diff --git a/src/closure.c b/src/closure.c
index 0169ee0f48578f1c7a3f84fa0fb9b921fe11cbd9..8652a22bf0584922ec23685ab4b0c81373fdeefe 100644 (file)
--- a/src/closure.c
+++ b/src/closure.c
@@ -1,5 +1,7 @@
-/* Subroutines for bison
-   Copyright (C) 1984, 1989, 2000, 2001, 2002 Free Software Foundation, Inc.
+/* Closures for Bison
+
+   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2004 Free Software
+   Foundation, Inc.

 
    This file is part of Bison, the GNU Compiler Compiler.
 
 
    This file is part of Bison, the GNU Compiler Compiler.
 


@@ -15,24 +17,26 @@
 
    You should have received a copy of the GNU General Public License
    along with Bison; see the file COPYING.  If not, write to the Free
 
    You should have received a copy of the GNU General Public License
    along with Bison; see the file COPYING.  If not, write to the Free

-   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA.  */
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.  */

 
 #include "system.h"
 
 #include "system.h"

-#include "quotearg.h"
-#include "bitset.h"
-#include "bitsetv.h"
-#include "bitsetv-print.h"
+
+#include <bitset.h>
+#include <bitsetv-print.h>
+#include <bitsetv.h>
+#include <quotearg.h>
+
+#include "closure.h"
+#include "derives.h"

 #include "getargs.h"
 #include "getargs.h"

-#include "symtab.h"

 #include "gram.h"
 #include "reader.h"
 #include "gram.h"
 #include "reader.h"

-#include "closure.h"
-#include "derives.h"
+#include "symtab.h"

 
 /* NITEMSET is the size of the array ITEMSET.  */
 
 /* NITEMSET is the size of the array ITEMSET.  */

-item_number_t *itemset;
-int nritemset;
+item_number *itemset;
+size_t nritemset;

 
 static bitset ruleset;
 
 
 static bitset ruleset;
 


@@ -50,17 +54,17 @@ static bitsetv firsts = NULL;
 `-----------------*/
 
 static void
 `-----------------*/
 
 static void

-print_closure (const char *title, item_number_t *array, size_t size)
+print_closure (char const *title, item_number *array, size_t size)

 {
   size_t i;
 {
   size_t i;

-  fprintf (stderr, _("Closure: %s\n"), title);
+  fprintf (stderr, "Closure: %s\n", title);

   for (i = 0; i < size; ++i)
     {
   for (i = 0; i < size; ++i)
     {

-      item_number_t *rp;
+      item_number *rp;

       fprintf (stderr, "  %2d: .", array[i]);
       for (rp = &ritem[array[i]]; *rp >= 0; ++rp)
        fprintf (stderr, " %s", symbols[*rp]->tag);
       fprintf (stderr, "  %2d: .", array[i]);
       for (rp = &ritem[array[i]]; *rp >= 0; ++rp)
        fprintf (stderr, " %s", symbols[*rp]->tag);

-      fprintf (stderr, _("  (rule %d)\n"), -*rp - 1);
+      fprintf (stderr, "  (rule %d)\n", -*rp - 1);

     }
   fputs ("\n\n", stderr);
 }
     }
   fputs ("\n\n", stderr);
 }


@@ -69,9 +73,9 @@ print_closure (const char *title, item_number_t *array, size_t size)
 static void
 print_firsts (void)
 {
 static void
 print_firsts (void)
 {

-  symbol_number_t i, j;
+  symbol_number i, j;

 
 

-  fprintf (stderr, "FIRSTS\n");
+  fputs ("FIRSTS\n", stderr);

   for (i = ntokens; i < nsyms; i++)
     {
       bitset_iterator iter;
   for (i = ntokens; i < nsyms; i++)
     {
       bitset_iterator iter;


@@ -82,7 +86,7 @@ print_firsts (void)
                   symbols[j + ntokens]->tag);
        }
     }
                   symbols[j + ntokens]->tag);
        }
     }

-  fprintf (stderr, "\n\n");
+  fputs ("\n\n", stderr);

 }
 
 
 }
 
 


@@ -90,9 +94,9 @@ static void
 print_fderives (void)
 {
   int i;
 print_fderives (void)
 {
   int i;

-  rule_number_t r;
+  rule_number r;

 
 

-  fprintf (stderr, "FDERIVES\n");
+  fputs ("FDERIVES\n", stderr);

   for (i = ntokens; i < nsyms; i++)
     {
       bitset_iterator iter;
   for (i = ntokens; i < nsyms; i++)
     {
       bitset_iterator iter;


@@ -103,7 +107,7 @@ print_fderives (void)
          rule_rhs_print (&rules[r], stderr);
        }
     }
          rule_rhs_print (&rules[r], stderr);
        }
     }

-  fprintf (stderr, "\n\n");
+  fputs ("\n\n", stderr);

 }
 \f
 /*------------------------------------------------------------------.
 }
 \f
 /*------------------------------------------------------------------.


@@ -120,23 +124,23 @@ print_fderives (void)
 static void
 set_firsts (void)
 {
 static void
 set_firsts (void)
 {

-  symbol_number_t i, j;
+  symbol_number i, j;

 
   firsts = bitsetv_create (nvars, nvars, BITSET_FIXED);
 
   for (i = ntokens; i < nsyms; i++)
 
   firsts = bitsetv_create (nvars, nvars, BITSET_FIXED);
 
   for (i = ntokens; i < nsyms; i++)

-    for (j = 0; derives[i][j]; ++j)
+    for (j = 0; derives[i - ntokens][j]; ++j)

       {
       {

-       int symbol = derives[i][j]->rhs[0];
-       if (ISVAR (symbol))
-         bitset_set (FIRSTS (i), symbol - ntokens);
+       item_number sym = derives[i - ntokens][j]->rhs[0];
+       if (ISVAR (sym))
+         bitset_set (FIRSTS (i), sym - ntokens);

       }
 
   if (trace_flag & trace_sets)
       }
 
   if (trace_flag & trace_sets)

-    bitsetv_matrix_dump (stderr, _("RTC: Firsts Input"), firsts);
+    bitsetv_matrix_dump (stderr, "RTC: Firsts Input", firsts);

   bitsetv_reflexive_transitive_closure (firsts);
   if (trace_flag & trace_sets)
   bitsetv_reflexive_transitive_closure (firsts);
   if (trace_flag & trace_sets)

-    bitsetv_matrix_dump (stderr, _("RTC: Firsts Output"), firsts);
+    bitsetv_matrix_dump (stderr, "RTC: Firsts Output", firsts);

 
   if (trace_flag & trace_sets)
     print_firsts ();
 
   if (trace_flag & trace_sets)
     print_firsts ();


@@ -155,8 +159,8 @@ set_firsts (void)
 static void
 set_fderives (void)
 {
 static void
 set_fderives (void)
 {

-  symbol_number_t i, j;
-  rule_number_t k;
+  symbol_number i, j;
+  rule_number k;

 
   fderives = bitsetv_create (nvars, nrules, BITSET_FIXED);
 
 
   fderives = bitsetv_create (nvars, nrules, BITSET_FIXED);
 


@@ -165,8 +169,8 @@ set_fderives (void)
   for (i = ntokens; i < nsyms; ++i)
     for (j = ntokens; j < nsyms; ++j)
       if (bitset_test (FIRSTS (i), j - ntokens))
   for (i = ntokens; i < nsyms; ++i)
     for (j = ntokens; j < nsyms; ++j)
       if (bitset_test (FIRSTS (i), j - ntokens))

-       for (k = 0; derives[j][k]; ++k)
-         bitset_set (FDERIVES (i), derives[j][k]->number);
+       for (k = 0; derives[j - ntokens][k]; ++k)
+         bitset_set (FDERIVES (i), derives[j - ntokens][k]->number);

 
   if (trace_flag & trace_sets)
     print_fderives ();
 
   if (trace_flag & trace_sets)
     print_fderives ();


@@ -177,9 +181,9 @@ set_fderives (void)
 \f
 
 void
 \f
 
 void

-new_closure (int n)
+new_closure (unsigned int n)

 {
 {

-  itemset = XCALLOC (item_number_t, n);
+  itemset = xnmalloc (n, sizeof *itemset);

 
   ruleset = bitset_create (nrules, BITSET_FIXED);
 
 
   ruleset = bitset_create (nrules, BITSET_FIXED);
 


@@ -189,18 +193,18 @@ new_closure (int n)
 
 
 void
 
 
 void

-closure (item_number_t *core, int n)
+closure (item_number *core, size_t n)

 {
   /* Index over CORE. */
 {
   /* Index over CORE. */

-  int c;
+  size_t c;

 
   /* A bit index over RULESET. */
 
   /* A bit index over RULESET. */

-  rule_number_t ruleno;
+  rule_number ruleno;

 
   bitset_iterator iter;
 
   if (trace_flag & trace_sets)
 
   bitset_iterator iter;
 
   if (trace_flag & trace_sets)

-    print_closure (_("input"), core, n);
+    print_closure ("input", core, n);

 
   bitset_zero (ruleset);
 
 
   bitset_zero (ruleset);
 


@@ -212,7 +216,7 @@ closure (item_number_t *core, int n)
   c = 0;
   BITSET_FOR_EACH (iter, ruleset, ruleno, 0)
     {
   c = 0;
   BITSET_FOR_EACH (iter, ruleset, ruleno, 0)
     {

-      item_number_t itemno = rules[ruleno].rhs - ritem;
+      item_number itemno = rules[ruleno].rhs - ritem;

       while (c < n && core[c] < itemno)
        {
          itemset[nritemset] = core[c];
       while (c < n && core[c] < itemno)
        {
          itemset[nritemset] = core[c];


@@ -231,14 +235,14 @@ closure (item_number_t *core, int n)
     }
 
   if (trace_flag & trace_sets)
     }
 
   if (trace_flag & trace_sets)

-    print_closure (_("output"), itemset, nritemset);
+    print_closure ("output", itemset, nritemset);

 }
 
 
 void
 free_closure (void)
 {
 }
 
 
 void
 free_closure (void)
 {

-  XFREE (itemset);
+  free (itemset);

   bitset_free (ruleset);
   bitsetv_free (fderives);
 }
   bitset_free (ruleset);
   bitsetv_free (fderives);
 }