-/* Top level entry point of bison,
- Copyright 1984, 1986, 1989, 1992, 1995, 2000, 2001, 2002
+/* Top level entry point of Bison.
+
+ Copyright (C) 1984, 1986, 1989, 1992, 1995, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
#include "system.h"
-#include "bitset_stats.h"
-#include "bitset.h"
-#include "getargs.h"
-#include "symtab.h"
-#include "gram.h"
-#include "files.h"
+
+#include <bitset_stats.h>
+#include <bitset.h>
+#include <timevar.h>
+
+#include "LR0.h"
#include "complain.h"
+#include "conflicts.h"
#include "derives.h"
-#include "output.h"
-#include "reader.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
#include "lalr.h"
-#include "reduce.h"
+#include "muscle_tab.h"
#include "nullable.h"
+#include "output.h"
#include "print.h"
-#include "LR0.h"
-#include "conflicts.h"
#include "print_graph.h"
-#include "muscle_tab.h"
+#include "reader.h"
+#include "reduce.h"
+#include "symtab.h"
+#include "tables.h"
+#include "uniqstr.h"
/* The name this program was run with, for messages. */
char *program_name;
-/*--------------------------.
-| Tracking space and time. |
-`--------------------------*/
-
-#if HAVE_MALLOC_H & HAVE_SYS_TIMES_H
-# include <malloc.h>
-# include <sys/times.h>
-#endif
-
-static void
-stage (const char *title)
-{
-#if HAVE_MALLOC_H & HAVE_SYS_TIMES_H
- if (trace_flag)
- {
- 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);
- }
-#endif
-}
-
int
main (int argc, char *argv[])
{
program_name = argv[0];
setlocale (LC_ALL, "");
- bindtextdomain (PACKAGE, LOCALEDIR);
- textdomain (PACKAGE);
+ (void) bindtextdomain (PACKAGE, LOCALEDIR);
+ (void) textdomain (PACKAGE);
+
+ uniqstrs_new ();
getargs (argc, argv);
- if (trace_flag)
+ timevar_report = trace_flag & trace_time;
+ init_timevar ();
+ timevar_start (TV_TOTAL);
+
+ if (trace_flag & trace_bitsets)
bitset_stats_enable ();
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");
+ timevar_push (TV_READER);
+ reader ();
+ timevar_pop (TV_READER);
- if (complain_message_count)
- exit (1);
+ if (complaint_issued)
+ goto finish;
/* Find useless nonterminals and productions and reduce the grammar. */
+ timevar_push (TV_REDUCE);
reduce_grammar ();
-
- stage ("reduced grammar");
+ timevar_pop (TV_REDUCE);
/* Record other info about the grammar. In files derives and
nullable. */
- set_derives ();
- set_nullable ();
+ timevar_push (TV_SETS);
+ derives_compute ();
+ nullable_compute ();
+ timevar_pop (TV_SETS);
/* Convert to nondeterministic finite state machine. In file LR0.
See state.h for more info. */
+ timevar_push (TV_LR0);
generate_states ();
+ timevar_pop (TV_LR0);
- stage ("generated states");
/* make it deterministic. In file lalr. */
+ timevar_push (TV_LALR);
lalr ();
+ timevar_pop (TV_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. */
+ timevar_push (TV_CONFLICTS);
conflicts_solve ();
conflicts_print ();
+ timevar_pop (TV_CONFLICTS);
+
+ /* Compute the parser tables. */
+ timevar_push (TV_ACTIONS);
+ tables_generate ();
+ timevar_pop (TV_ACTIONS);
+
+ grammar_rules_never_reduced_report
+ (_("rule never reduced because of conflicts"));
- stage ("solved conflicts");
/* Output file names. */
compute_output_file_names ();
/* Output the detailed report on the grammar. */
if (report_flag)
- print_results ();
+ {
+ timevar_push (TV_REPORT);
+ print_results ();
+ timevar_pop (TV_REPORT);
+ }
+
+ /* Output the VCG graph. */
+ if (graph_flag)
+ {
+ timevar_push (TV_GRAPH);
+ print_graph ();
+ timevar_pop (TV_GRAPH);
+ }
- stage ("printed results");
/* Stop if there were errors, to avoid trashing previous output
files. */
- if (complain_message_count)
- exit (1);
+ if (complaint_issued)
+ goto finish;
- /* Output the VCG graph. */
- if (graph_flag)
- print_graph ();
+ /* Lookaheads are no longer needed. */
+ timevar_push (TV_FREE);
+ lalr_free ();
+ timevar_pop (TV_FREE);
/* Output the tables and the parser to ftable. In file output. */
+ timevar_push (TV_PARSER);
output ();
- stage ("made output");
+ timevar_pop (TV_PARSER);
+ timevar_push (TV_FREE);
+ nullable_free ();
+ derives_free ();
+ tables_free ();
states_free ();
- stage ("freed states");
reduce_free ();
- stage ("freed reduce");
conflicts_free ();
- stage ("freed conflicts");
- free_nullable ();
- stage ("freed nullable");
- free_derives ();
- 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");
+ uniqstrs_free ();
/* 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);
+ {
+ extern void *alloca (size_t);
+ alloca (0);
+ }
#endif
+ timevar_pop (TV_FREE);
- if (trace_flag)
+ if (trace_flag & trace_bitsets)
bitset_stats_dump (stderr);
- return complain_message_count ? EXIT_FAILURE : EXIT_SUCCESS;
+ finish:
+
+ /* Stop timing and print the times. */
+ timevar_stop (TV_TOTAL);
+ timevar_print (stderr);
+
+ return complaint_issued ? EXIT_FAILURE : EXIT_SUCCESS;
}
projects / bison.git / blobdiff