* m4/prereq.m4: Update, from Coreutils 4.5.1.

[bison.git] / tests / torture.at

diff --git a/tests/torture.at b/tests/torture.at
index 24f1cada7812db98ad1df1ecfde30f3824702642..9354dfad464b6d7ca3e15386c3a2299f4f6313d0 100644 (file)
--- a/tests/torture.at
+++ b/tests/torture.at
@@ -19,6 +19,19 @@
 AT_BANNER([[Torture Tests.]])
 
 
 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
+    ulimit -S -d $1
+  fi
+esac])
+
+

 ## ------------------------------------- ##
 ## Creating a large artificial grammar.  ##
 ## ------------------------------------- ##
 ## ------------------------------------- ##
 ## Creating a large artificial grammar.  ##
 ## ------------------------------------- ##


@@ -27,9 +40,6 @@ AT_BANNER([[Torture Tests.]])
 # -------------------------------------------
 # Create FILE-NAME, containing a self checking parser for a huge
 # triangular grammar.
 # -------------------------------------------
 # 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
 m4_define([AT_DATA_TRIANGULAR_GRAMMAR],
 [AT_DATA([[gengram.pl]],
 [[#! /usr/bin/perl -w


@@ -60,7 +70,7 @@ EOF
 
 for my $size (1 .. $max)
   {
 
 for my $size (1 .. $max)
   {

-    print "%token \"$size\" ", $size * 10, "\n";
+    print "%token t$size $size \"$size\"\n";

   };
 
 print <<EOF;
   };
 
 print <<EOF;


@@ -100,7 +110,7 @@ yylex (void)
       ++outer;
       return END;
     }
       ++outer;
       return END;
     }

-  return inner++ * 10;
+  return inner++;

 }
 
 static void
 }
 
 static void


@@ -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.
 
 # 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])
+# 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 input.y -v -o input.c])
 AT_CHECK([bison input.y -v -o input.c])

-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-AT_CHECK([./input])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -144,9 +156,6 @@ AT_CLEANUP
 # -------------------------------------------
 # Create FILE-NAME, containing a self checking parser for a huge
 # horizontal grammar.
 # -------------------------------------------
 # 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
 m4_define([AT_DATA_HORIZONTAL_GRAMMAR],
 [AT_DATA([[gengram.pl]],
 [[#! /usr/bin/perl -w


@@ -170,7 +179,7 @@ EOF
 
 for my $size (1 .. $max)
   {
 
 for my $size (1 .. $max)
   {

-    print "%token \"$size\" ", $size * 10, "\n";
+    print "%token t$size $size \"$size\"\n";

   };
 
 print <<EOF;
   };
 
 print <<EOF;


@@ -192,7 +201,7 @@ yylex (void)
   if (counter > $max)
     return 0;
   else
   if (counter > $max)
     return 0;
   else

-  return counter++ * 10;
+  return counter++;

 }
 
 static void
 }
 
 static void


@@ -234,9 +243,138 @@ AT_SETUP([Big horizontal])
 # ./input                          0.00s user 0.01s sys 108% cpu     0.01 total
 #
 AT_DATA_HORIZONTAL_GRAMMAR([input.y], [1000])
 # ./input                          0.00s user 0.01s sys 108% cpu     0.01 total
 #
 AT_DATA_HORIZONTAL_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 input.y -v -o input.c])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])
+
+AT_CLEANUP
+
+
+
+# AT_DATA_LOOKAHEADS_GRAMMAR(FILE-NAME, SIZE)
+# -------------------------------------------
+# Create FILE-NAME, containing a self checking parser for a grammar
+# requiring SIZE lookaheads.
+m4_define([AT_DATA_LOOKAHEADS_GRAMMAR],
+[AT_DATA([[gengram.pl]],
+[[#! /usr/bin/perl -w
+
+use strict;
+use Text::Wrap;
+my $max = $ARGV[0] || 10;
+
+print <<EOF;
+%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#define YYERROR_VERBOSE 1
+#define YYDEBUG 1
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+%union
+{
+  int val;
+};
+
+%type <val> input exp
+%token token
+EOF
+
+print
+  wrap ("%type <val> ",
+       "            ",
+       map { "n$_" } (1 .. $max)),
+  "\n";
+
+for my $count (1 .. $max)
+  {
+    print "%token t$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); }
+EOF
+
+for my $count (2 .. $max)
+  {
+    print "| n$count \"$count\" { assert (\@S|@1 == $count); }\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 lookaheads.  ##
+## ----------------- ##
+
+AT_SETUP([Many lookaheads])
+
+AT_DATA_LOOKAHEADS_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 input.y -v -o input.c])
 AT_CHECK([bison input.y -v -o input.c])

-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-AT_CHECK([./input])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -256,9 +394,6 @@ AT_DATA([input.y],
 ]$1[
   static int yylex (void);
   static void yyerror (const char *msg);
 ]$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
 %}
 %error-verbose
 %debug


@@ -295,7 +430,7 @@ main (int argc, const char **argv)
 }
 ]])
 AT_CHECK([bison input.y -o input.c])
 }
 ]])
 AT_CHECK([bison input.y -o input.c])

-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
+AT_COMPILE([input])

 ])
 
 
 ])
 
 


@@ -308,12 +443,12 @@ AT_SETUP([Exploding the Stack Size with Alloca])
 AT_DATA_STACK_TORTURE
 
 # Below the limit of 200.
 AT_DATA_STACK_TORTURE
 
 # Below the limit of 200.

-AT_CHECK([./input 20], 0, [], [ignore])
+AT_PARSER_CHECK([./input 20], 0, [], [ignore])

 # Two enlargements: 2 * 2 * 200.
 # 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).
 # 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], 1, [], [ignore])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -329,11 +464,11 @@ AT_SETUP([Exploding the Stack Size with Malloc])
 AT_DATA_STACK_TORTURE([[#define YYSTACK_USE_ALLOCA 0]])
 
 # Below the limit of 200.
 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.
 # 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).
 # 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], 1, [], [ignore])

 
 AT_CLEANUP
 
 AT_CLEANUP