X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/23c5a174534ac30c30c6fa2aa0c008c4846295a6..0e2f006a23874bfc9f419e030c58670ea5d97627:/tests/torture.at

diff --git a/tests/torture.at b/tests/torture.at
index deb5ab1d..629bf976 100644
--- a/tests/torture.at
+++ b/tests/torture.at
@@ -1,5 +1,5 @@
 # Torturing Bison.                                    -*- Autotest -*-
-# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
 
 # 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
@@ -13,12 +13,26 @@
 
 # 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., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
 
 AT_BANNER([[Torture Tests.]])
 
 
+# AT_INCREASE_DATA_SIZE(SIZE)
+# ---------------------------
+# Try to increase the data size to SIZE KiB if possible.
+m4_define([AT_INCREASE_DATA_SIZE],
+[data_limit=`(ulimit -S -d) 2>/dev/null`
+case $data_limit in
+[[0-9]]*)
+  if test "$data_limit" -lt $1; then
+    AT_CHECK([ulimit -S -d $1 || exit 77])
+    ulimit -S -d $1
+  fi
+esac])
+
+
 ## ------------------------------------- ##
 ## Creating a large artificial grammar.  ##
 ## ------------------------------------- ##
@@ -27,9 +41,6 @@ AT_BANNER([[Torture Tests.]])
 # -------------------------------------------
 # Create FILE-NAME, containing a self checking parser for a huge
 # triangular grammar.
-# FIXME: The `10 *' below are there to avoid clashes with predefined
-# tokens.  These clashes should be exercised, I'm afraid something
-# is broken wrt previous Bisons.
 m4_define([AT_DATA_TRIANGULAR_GRAMMAR],
 [AT_DATA([[gengram.pl]],
 [[#! /usr/bin/perl -w
@@ -38,13 +49,12 @@ use strict;
 my $max = $ARGV[0] || 10;
 
 print <<EOF;
+]AT_DATA_GRAMMAR_PROLOGUE[
+%error-verbose
+%debug
 %{
 #include <stdio.h>
 #include <stdlib.h>
-#include <assert.h>
-
-#define YYERROR_VERBOSE 1
-#define YYDEBUG 1
 
 static int yylex (void);
 static void yyerror (const char *msg);
@@ -60,14 +70,14 @@ EOF
 
 for my $size (1 .. $max)
   {
-    print "%token \"$size\" ", $size, "\n";
+    print "%token t$size $size \"$size\"\n";
   };
 
 print <<EOF;
 %%
 input:
-  exp        { assert (\@S|@1 == 0); \$\$ = \@S|@1; }
-| input exp  { assert (\@S|@2 == \@S|@1 + 1); \$\$ = \@S|@2; }
+  exp        { if (\@S|@1 != 0) abort (); \$\$ = \@S|@1; }
+| input exp  { if (\@S|@2 != \@S|@1 + 1) abort (); \$\$ = \@S|@2; }
 ;
 
 exp:
@@ -131,10 +141,12 @@ AT_SETUP([Big triangle])
 
 # I have been able to go up to 2000 on my machine.
 # I tried 3000, a 29Mb grammar file, but then my system killed bison.
-AT_DATA_TRIANGULAR_GRAMMAR([input.y], [500])
-AT_CHECK([bison input.y -v -o input.c])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-AT_CHECK([./input])
+# With 500 and the new parser, which consume far too much memory,
+# it gets killed too.  Of course the parser is to be cleaned.
+AT_DATA_TRIANGULAR_GRAMMAR([input.y], [200])
+AT_CHECK([bison -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])
 
 AT_CLEANUP
 
@@ -144,9 +156,6 @@ AT_CLEANUP
 # -------------------------------------------
 # Create FILE-NAME, containing a self checking parser for a huge
 # horizontal grammar.
-# FIXME: The `10 *' below are there to avoid clashes with predefined
-# tokens.  These clashes should be exercised, I'm afraid something
-# is broken wrt previous Bisons.
 m4_define([AT_DATA_HORIZONTAL_GRAMMAR],
 [AT_DATA([[gengram.pl]],
 [[#! /usr/bin/perl -w
@@ -155,25 +164,26 @@ use strict;
 my $max = $ARGV[0] || 10;
 
 print <<EOF;
+]AT_DATA_GRAMMAR_PROLOGUE[
+%error-verbose
+%debug
 %{
 #include <stdio.h>
 #include <stdlib.h>
-#include <assert.h>
-
-#define YYERROR_VERBOSE 1
-#define YYDEBUG 1
 
 static int yylex (void);
 static void yyerror (const char *msg);
 %}
-EOF
 
+%token
+EOF
 for my $size (1 .. $max)
   {
-    print "%token \"$size\" ", $size, "\n";
+    print "    t$size $size \"$size\"\n";
   };
 
 print <<EOF;
+
 %%
 EOF
 
@@ -234,9 +244,138 @@ AT_SETUP([Big horizontal])
 # ./input                          0.00s user 0.01s sys 108% cpu     0.01 total
 #
 AT_DATA_HORIZONTAL_GRAMMAR([input.y], [1000])
-AT_CHECK([bison input.y -v -o input.c])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-AT_CHECK([./input])
+
+# GNU m4 requires about 70 MiB for this test on a 32-bit host.
+# Ask for 200 MiB, which should be plenty even on a 64-bit host.
+AT_INCREASE_DATA_SIZE(204000)
+
+AT_CHECK([bison -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])
+
+AT_CLEANUP
+
+
+
+# AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR(FILE-NAME, SIZE)
+# --------------------------------------------------
+# Create FILE-NAME, containing a self checking parser for a grammar
+# requiring SIZE lookahead tokens.
+m4_define([AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR],
+[AT_DATA([[gengram.pl]],
+[[#! /usr/bin/perl -w
+
+use strict;
+use Text::Wrap;
+my $max = $ARGV[0] || 10;
+
+print <<EOF;
+%error-verbose
+%debug
+%{
+# include <stdio.h>
+# include <stdlib.h>
+# include <assert.h>
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+%union
+{
+  int val;
+};
+
+%type <val> input exp
+%token token
+EOF
+
+print
+  wrap ("%type <val> ",
+	"            ",
+	map { "n$_" } (1 .. $max)),
+  "\n";
+
+print "%token\n";
+for my $count (1 .. $max)
+  {
+    print "    t$count $count \"$count\"\n";
+  };
+
+print <<EOF;
+%%
+input:
+  exp        { assert (\@S|@1 == 1); \$\$ = \@S|@1; }
+| input exp  { assert (\@S|@2 == \@S|@1 + 1); \$\$ = \@S|@2; }
+;
+
+exp:
+  n1 "1" { assert (\@S|@1 == 1); \@S|@\@S|@ = \@S|@1; }
+EOF
+
+for my $count (2 .. $max)
+  {
+    print "| n$count \"$count\" { assert (\@S|@1 == $count); \@S|@\@S|@ = \@S|@1; }\n";
+  };
+print ";\n";
+
+for my $count (1 .. $max)
+  {
+    print "n$count: token { \$\$ = $count; };\n";
+  };
+
+print <<EOF;
+%%
+static int
+yylex (void)
+{
+  static int return_token = 1;
+  static int counter = 1;
+  if (counter > $max)
+    return 0;
+  if (return_token)
+    {
+      return_token = 0;
+      return token;
+    }
+  return_token = 1;
+  return counter++;
+}
+
+static void
+yyerror (const char *msg)
+{
+  fprintf (stderr, "%s\\n", msg);
+}
+
+int
+main (void)
+{
+  yydebug = !!getenv ("YYDEBUG");
+  return yyparse ();
+}
+EOF
+]])
+
+AT_CHECK([perl -w ./gengram.pl $2 || exit 77], 0, [stdout])
+mv stdout $1
+])
+
+
+## ------------------------ ##
+## Many lookahead tokens.  ##
+## ------------------------ ##
+
+AT_SETUP([Many lookahead tokens])
+
+AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR([input.y], [1000])
+
+# GNU m4 requires about 70 MiB for this test on a 32-bit host.
+# Ask for 200 MiB, which should be plenty even on a 64-bit host.
+AT_INCREASE_DATA_SIZE(204000)
+
+AT_CHECK([bison -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])
 
 AT_CLEANUP
 
@@ -250,15 +389,13 @@ m4_define([AT_DATA_STACK_TORTURE],
 # exp:
 AT_DATA([input.y],
 [[%{
+#include <errno.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <assert.h>
 ]$1[
   static int yylex (void);
   static void yyerror (const char *msg);
-#define YYPRINT(File, Type, Value)                   \
-  fprintf (File, " (%d, stack size = %d, max = %d)", \
-           Value, yyssp - yyss + 1, yystacksize);
 %}
 %error-verbose
 %debug
@@ -270,12 +407,8 @@ static void
 yyerror (const char *msg)
 {
   fprintf (stderr, "%s\n", msg);
-  exit (1);
 }
 
-/* There are YYLVAL_MAX of WAIT_FOR_EOFs. */
-unsigned int yylval_max;
-
 static int
 yylex (void)
 {
@@ -288,14 +421,20 @@ yylex (void)
 int
 main (int argc, const char **argv)
 {
-  assert (argc == 2);
-  yylval = atoi (argv[1]);
+  char *endp;
+  if (argc != 2)
+    abort ();
+  yylval = strtol (argv[1], &endp, 10);
+  if (! (argv[1] != endp
+	 && 0 <= yylval && yylval <= INT_MAX
+	 && errno != ERANGE))
+    abort ();
   yydebug = 1;
   return yyparse ();
 }
 ]])
-AT_CHECK([bison input.y -o input.c])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input])
 ])
 
 
@@ -305,15 +444,20 @@ AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
 
 AT_SETUP([Exploding the Stack Size with Alloca])
 
-AT_DATA_STACK_TORTURE
+AT_DATA_STACK_TORTURE([[
+#if (defined __GNUC__ || defined __BUILTIN_VA_ARG_INCR \
+     || defined _AIX || defined _MSC_VER || defined _ALLOCA_H)
+# define YYSTACK_USE_ALLOCA 1
+#endif
+]])
 
 # Below the limit of 200.
-AT_CHECK([./input 20], 0, [], [ignore])
+AT_PARSER_CHECK([./input 20], 0, [], [ignore])
 # Two enlargements: 2 * 2 * 200.
-AT_CHECK([./input 900], 0, [], [ignore])
+AT_PARSER_CHECK([./input 900], 0, [], [ignore])
 # Fails: beyond the limit of 10,000 (which we don't reach anyway since we
 # multiply by two starting at 200 => 5120 is the last possible).
-AT_CHECK([./input 10000], 1, [], [ignore])
+AT_PARSER_CHECK([./input 10000], 2, [], [ignore])
 
 AT_CLEANUP
 
@@ -329,11 +473,11 @@ AT_SETUP([Exploding the Stack Size with Malloc])
 AT_DATA_STACK_TORTURE([[#define YYSTACK_USE_ALLOCA 0]])
 
 # Below the limit of 200.
-AT_CHECK([./input 20], 0, [], [ignore])
+AT_PARSER_CHECK([./input 20], 0, [], [ignore])
 # Two enlargements: 2 * 2 * 200.
-AT_CHECK([./input 900], 0, [], [ignore])
+AT_PARSER_CHECK([./input 900], 0, [], [ignore])
 # Fails: beyond the limit of 10,000 (which we don't reach anyway since we
 # multiply by two starting at 200 => 5120 is the possible).
-AT_CHECK([./input 10000], 1, [], [ignore])
+AT_PARSER_CHECK([./input 10000], 2, [], [ignore])
 
 AT_CLEANUP