X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/04d843a2a8585b02e166a3b5df828f39c371c1b8..c97011bfc1cabd3f7aa8e263f83d9e8a18a262bf:/tests/torture.at?ds=sidebyside diff --git a/tests/torture.at b/tests/torture.at index e0205372..9354dfad 100644 --- a/tests/torture.at +++ b/tests/torture.at @@ -1,5 +1,5 @@ # Torturing Bison. -*- Autotest -*- -# Copyright 2001 Free Software Foundation, Inc. +# Copyright (C) 2001, 2002 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 @@ -19,6 +19,367 @@ 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. ## +## ------------------------------------- ## + +# AT_DATA_TRIANGULAR_GRAMMAR(FILE-NAME, SIZE) +# ------------------------------------------- +# Create FILE-NAME, containing a self checking parser for a huge +# triangular grammar. +m4_define([AT_DATA_TRIANGULAR_GRAMMAR], +[AT_DATA([[gengram.pl]], +[[#! /usr/bin/perl -w + +use strict; +my $max = $ARGV[0] || 10; + +print < +#include +#include + +#define YYERROR_VERBOSE 1 +#define YYDEBUG 1 + +static int yylex (void); +static void yyerror (const char *msg); +%} +%union +{ + int val; +}; + +%token END "end" +%type exp input +EOF + +for my $size (1 .. $max) + { + print "%token t$size $size \"$size\"\n"; + }; + +print < $max) + return 0; + else if (inner > outer) + { + inner = 1; + ++outer; + return END; + } + return inner++; +} + +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 +]) + + +## -------------- ## +## Big triangle. ## +## -------------- ## + +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. +# 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_COMPILE([input]) +AT_PARSER_CHECK([./input]) + +AT_CLEANUP + + + +# AT_DATA_HORIZONTAL_GRAMMAR(FILE-NAME, SIZE) +# ------------------------------------------- +# Create FILE-NAME, containing a self checking parser for a huge +# horizontal grammar. +m4_define([AT_DATA_HORIZONTAL_GRAMMAR], +[AT_DATA([[gengram.pl]], +[[#! /usr/bin/perl -w + +use strict; +my $max = $ARGV[0] || 10; + +print < +#include +#include + +#define YYERROR_VERBOSE 1 +#define YYDEBUG 1 + +static int yylex (void); +static void yyerror (const char *msg); +%} +EOF + +for my $size (1 .. $max) + { + print "%token t$size $size \"$size\"\n"; + }; + +print < $max) + return 0; + else + 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 +]) + + +## ---------------- ## +## Big horizontal. ## +## ---------------- ## + +AT_SETUP([Big horizontal]) + +# I have been able to go up to 10000 on my machine, but I had to +# increase the maximum stack size (* 100). It gave: +# +# input.y 263k +# input.tab.c 1.3M +# input 453k +# +# gengram.pl 10000 0.70s user 0.01s sys 99% cpu 0.711 total +# bison input.y 730.56s user 0.53s sys 99% cpu 12:12.34 total +# gcc -Wall input.tab.c -o input 5.81s user 0.20s sys 100% cpu 6.01 total +# ./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 = $ARGV[0] || 10; + +print < +#include +#include + +#define YYERROR_VERBOSE 1 +#define YYDEBUG 1 + +static int yylex (void); +static void yyerror (const char *msg); +%} +%union +{ + int val; +}; + +%type input exp +%token token +EOF + +print + wrap ("%type ", + " ", + map { "n$_" } (1 .. $max)), + "\n"; + +for my $count (1 .. $max) + { + print "%token t$count $count \"$count\"\n"; + }; + +print < $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_COMPILE([input]) +AT_PARSER_CHECK([./input]) + +AT_CLEANUP + + + # AT_DATA_STACK_TORTURE(C-PROLOGUE) # --------------------------------- # A parser specialized in torturing the stack size. @@ -33,9 +394,6 @@ AT_DATA([input.y], ]$1[ static int yylex (void); static void yyerror (const char *msg); -#define YYPRINT(File, Type, Value) \ - fprintf (File, " (%d, stack size = %d, max = %d)", \ - Value, yyssp - yyss + 1, yystacksize); %} %error-verbose %debug @@ -72,7 +430,7 @@ main (int argc, const char **argv) } ]]) AT_CHECK([bison input.y -o input.c]) -AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore]) +AT_COMPILE([input]) ]) @@ -85,12 +443,12 @@ AT_SETUP([Exploding the Stack Size with Alloca]) 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. -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], 1, [], [ignore]) AT_CLEANUP @@ -106,11 +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_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], 1, [], [ignore]) AT_CLEANUP