* src/state.h, src/state.c (transitions_t): Holds state_t*'s, not

[bison.git] / src / main.c

diff --git a/src/main.c b/src/main.c
index d14657a14b32948dd33b7a1ca94ce03f0add4553..a4a9871fdbe6dc62695fbba89d22b56d06de39e4 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -1,5 +1,5 @@
 /* Top level entry point of bison,
-   Copyright (C) 1984, 1986, 1989, 1992, 1995, 2000
+   Copyright 1984, 1986, 1989, 1992, 1995, 2000, 2001, 2002
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
@@ -21,7 +21,11 @@
 
 
 #include "system.h"
+#include "bitset_stats.h"
+#include "bitset.h"
 #include "getargs.h"
+#include "symtab.h"
+#include "gram.h"
 #include "files.h"
 #include "complain.h"
 #include "derives.h"
@@ -33,11 +37,25 @@
 #include "print.h"
 #include "LR0.h"
 #include "conflicts.h"
+#include "print_graph.h"
+#include "muscle_tab.h"
+#include <malloc.h>
+#include <sys/times.h>
 
 /* The name this program was run with, for messages.  */
 char *program_name;
 
-extern void berror PARAMS((const char *));
+static void
+stage (const char *title)
+{
+  struct mallinfo minfo = mallinfo ();
+  struct tms tinfo;
+  times (&tinfo);
+  fprintf (stderr, "STAGE: %30s: %9d (%9d): %ldu %lds\n",
+          title,
+          minfo.uordblks, minfo.arena,
+          tinfo.tms_utime, tinfo.tms_stime);
+}
 
 int
 main (int argc, char *argv[])
@@ -47,60 +65,100 @@ main (int argc, char *argv[])
   bindtextdomain (PACKAGE, LOCALEDIR);
   textdomain (PACKAGE);
 
-  lineno = 0;
   getargs (argc, argv);
 
-  /* Be ready to clean up if we exit. */
-  atexit (done);
+  if (trace_flag)
+    bitset_stats_enable ();
 
-  open_files ();
+  muscle_init ();
+
+  stage ("initialized muscles");
 
   /* Read the input.  Copy some parts of it to FGUARD, FACTION, FTABLE
      and FATTRS.  In file reader.c.  The other parts are recorded in
      the grammar; see gram.h.  */
   reader ();
+
+  stage ("reader");
+
   if (complain_message_count)
     exit (1);
 
-  /* find useless nonterminals and productions and reduce the grammar.  In
-     file reduce.c */
+  /* Find useless nonterminals and productions and reduce the grammar. */
   reduce_grammar ();
 
-  /* record other info about the grammar.  In files derives and nullable.  */
+  stage ("reduced grammar");
+
+  /* Record other info about the grammar.  In files derives and
+     nullable.  */
   set_derives ();
   set_nullable ();
 
-  /* convert to nondeterministic finite state machine.  In file LR0.
+  /* Convert to nondeterministic finite state machine.  In file LR0.
      See state.h for more info.  */
   generate_states ();
 
+  stage ("generated states");
   /* make it deterministic.  In file lalr.  */
   lalr ();
 
+  stage ("lalred");
   /* Find and record any conflicts: places where one token of
      lookahead is not enough to disambiguate the parsing.  In file
      conflicts.  Also resolve s/r conflicts based on precedence
      declarations.  */
-  initialize_conflicts ();
+  conflicts_solve ();
+  conflicts_print ();
+
+  stage ("solved conflicts");
+  /* Output file names. */
+  compute_output_file_names ();
+
+  /* Output the detailed report on the grammar.  */
+  if (report_flag)
+    print_results ();
 
-  /* Print information about results, if requested.  */
-  print_results ();
+  stage ("printed results");
+  /* Stop if there were errors, to avoid trashing previous output
+     files.  */
+  if (complain_message_count)
+    exit (1);
+
+  /* Output the VCG graph.  */
+  if (graph_flag)
+    print_graph ();
 
   /* Output the tables and the parser to ftable.  In file output.  */
   output ();
-
-  finalize_conflicts ();
+  stage ("made output");
+
+  states_free ();
+  stage ("freed states");
+  reduce_free ();
+  stage ("freed reduce");
+  conflicts_free ();
+  stage ("freed conflicts");
   free_nullable ();
+  stage ("freed nullable");
   free_derives ();
-
-  exit (complain_message_count ? 1 : 0);
-}
-\f
-/* Abort for an internal error denoted by string S.  */
-
-void
-berror (const char *s)
-{
-  fprintf (stderr, _("%s: internal error: %s\n"), program_name, s);
-  abort ();
+  stage ("freed derives");
+  grammar_free ();
+  stage ("freed grammar");
+
+  /* The scanner memory cannot be released right after parsing, as it
+     contains things such as user actions, prologue, epilogue etc.  */
+  scanner_free ();
+  stage ("freed scanner");
+  muscle_free ();
+  stage ("freed muscles");
+  /* If using alloca.c, flush the alloca'ed memory for the benefit of
+     people running Bison as a library in IDEs.  */
+#if C_ALLOCA
+  alloca (0);
+#endif
+
+  if (trace_flag)
+    bitset_stats_dump (stderr);
+
+  return complain_message_count ? EXIT_FAILURE : EXIT_SUCCESS;
 }