projects / bison.git / blame
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| 3cedc2dc AD |
1 | #! /usr/bin/perl -w |
| 2 | ||
| 9ca7f077 | 3 | # Copyright (C) 2006, 2008 Free Software Foundation, Inc. |
| f16b0819 | 4 | # |
| 3cedc2dc | 5 | # This file is part of Bison, the GNU Compiler Compiler. |
| f16b0819 PE |
6 | # |
| 7 | # This program is free software: you can redistribute it and/or modify | |
| 3cedc2dc | 8 | # it under the terms of the GNU General Public License as published by |
| f16b0819 PE |
9 | # the Free Software Foundation, either version 3 of the License, or |
| 10 | # (at your option) any later version. | |
| 11 | # | |
| 12 | # This program is distributed in the hope that it will be useful, | |
| 3cedc2dc AD |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | # GNU General Public License for more details. | |
| f16b0819 | 16 | # |
| 3cedc2dc | 17 | # You should have received a copy of the GNU General Public License |
| f16b0819 PE |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | ||
| 15129f25 AD |
20 | =head1 NAME |
| 21 | ||
| f10e19fd | 22 | bench.pl - bench marks for Bison parsers. |
| 15129f25 AD |
23 | |
| 24 | =head1 SYNOPSIS | |
| 25 | ||
| 9b0efa5b | 26 | ./bench.pl [OPTIONS]... DIRECTIVES |
| 15129f25 | 27 | |
| f10e19fd | 28 | =head1 DIRECTIVES |
| a6df593d | 29 | |
| f10e19fd AD |
30 | Specify the set of benches to run. The following grammar defines the |
| 31 | I<directives>: | |
| 32 | ||
| 33 | I<directives> ::= I<directives> | I<directives> -- Alternation | |
| 34 | | I<directives> & I<directives> -- Concatenation | |
| 35 | | [ I<directives> ] -- Optional | |
| 36 | | ( I<directives> ) -- Parentheses | |
| 37 | | I<directive> | |
| 38 | ||
| 39 | Parentheses only group to override precedence. For instance: | |
| 40 | ||
| 41 | [ %debug ] & [ %error-verbose ] & [ %define variant ] | |
| 42 | ||
| 43 | will generate eight different cases. | |
| 44 | ||
| 45 | =head1 OPTIONS | |
| 46 | ||
| 47 | =over 4 | |
| 48 | ||
| 49 | =item B<-b>, B<--bench> | |
| 50 | ||
| 51 | Predefined benches, that is, combimation between a grammar and a I<directives> | |
| 52 | request. | |
| a6df593d AD |
53 | |
| 54 | =over 4 | |
| 55 | ||
| 56 | =item I<fusion> | |
| 57 | ||
| 58 | Test F<lalr1.cc> with three stacks against F<lalr1-fusion.cc> which | |
| 59 | uses a single one. | |
| 60 | ||
| 61 | =item I<push> | |
| 62 | ||
| 63 | Test the push parser vs. the pull interface. Use the C parser. | |
| 64 | ||
| 65 | =item I<variant> | |
| 66 | ||
| 67 | Test the use of variants instead of union in the C++ parser. | |
| 68 | ||
| 69 | =back | |
| 70 | ||
| 7e5f9c54 AD |
71 | =item B<-c>, B<--cflags>=I<flags> |
| 72 | ||
| ef05c4d6 AD |
73 | Flags to pass to the C or C++ compiler. Defaults to -O2. |
| 74 | ||
| 757f8f98 AD |
75 | =item B<-d>, B<--directive>=I<directives> |
| 76 | ||
| 77 | Add a set of Bison directives to bench against each other. | |
| 78 | ||
| f10e19fd AD |
79 | =item B<-g>, B<--grammar>=I<grammar> |
| 80 | ||
| 81 | Select the base I<grammar> to use. Defaults to I<calc>. | |
| 82 | ||
| 83 | =over 4 | |
| 84 | ||
| 85 | =item I<calc> | |
| 86 | ||
| 87 | Traditional calculator. | |
| 88 | ||
| 89 | =item I<list> | |
| 90 | ||
| 91 | C++ grammar that uses std::string and std::list. Can be used with | |
| 92 | or without %define variant. | |
| 93 | ||
| 94 | =item I<triangular> | |
| 95 | ||
| 96 | Artificial grammar with very long rules. | |
| 97 | ||
| 98 | =back | |
| 99 | ||
| ef05c4d6 AD |
100 | =item B<-h>, B<--help> |
| 101 | ||
| 102 | Display this message and exit succesfully. The more verbose, the more | |
| 103 | details. | |
| 7e5f9c54 AD |
104 | |
| 105 | =item B<-i>, B<--iterations>=I<integer> | |
| 106 | ||
| d11ee647 AD |
107 | Say how many times a single test of the bench must be run. If |
| 108 | negative, specify the minimum number of CPU seconds to run. Defaults | |
| ef05c4d6 AD |
109 | to -1. |
| 110 | ||
| 111 | =item B<-q>, B<--quiet> | |
| 112 | ||
| 113 | Decrease the verbosity level (defaults to 1). | |
| 7e5f9c54 AD |
114 | |
| 115 | =item B<-v>, B<--verbose> | |
| 116 | ||
| ef05c4d6 | 117 | Raise the verbosity level (defaults to 1). |
| 7e5f9c54 | 118 | |
| e1b74b92 AD |
119 | =back |
| 120 | ||
| 15129f25 AD |
121 | =cut |
| 122 | ||
| 3a2803df | 123 | use strict; |
| 3cedc2dc | 124 | use IO::File; |
| 3cedc2dc | 125 | |
| e1b74b92 AD |
126 | ################################################################## |
| 127 | ||
| 128 | =head1 VARIABLES | |
| 129 | ||
| 130 | =over 4 | |
| 131 | ||
| 3a2803df AD |
132 | =item C<@bench> |
| 133 | ||
| 134 | The list of benches to run. | |
| 135 | ||
| e1b74b92 AD |
136 | =item C<$bison> |
| 137 | ||
| 138 | The Bison program to use to compile the grammar. | |
| 139 | ||
| 140 | =item C<$cc> | |
| 141 | ||
| 142 | The C compiler. | |
| 143 | ||
| 144 | =item C<$cxx> | |
| 145 | ||
| 146 | The C++ compiler. | |
| 147 | ||
| 148 | =item C<$cflags> | |
| 149 | ||
| 150 | Compiler flags (C or C++). | |
| 151 | ||
| 757f8f98 AD |
152 | =item C<@directive> |
| 153 | ||
| 154 | A list of directive sets to measure against each other. | |
| 155 | ||
| e1b74b92 AD |
156 | =item C<$iterations> |
| 157 | ||
| 158 | The number of times the parser is run for a bench. | |
| 159 | ||
| 160 | =item C<$verbose> | |
| 161 | ||
| 162 | Verbosity level. | |
| 163 | ||
| 164 | =back | |
| 165 | ||
| 166 | =cut | |
| 167 | ||
| f10e19fd | 168 | my $bench; |
| 2e7944cb | 169 | my $bison = $ENV{'BISON'} || '@abs_top_builddir@/tests/bison'; |
| 3cedc2dc | 170 | my $cc = $ENV{'CC'} || 'gcc'; |
| 7109a18d | 171 | my $cxx = $ENV{'CXX'} || 'g++'; |
| ef05c4d6 | 172 | my $cflags = '-O2'; |
| 757f8f98 | 173 | my @directive = (); |
| f10e19fd | 174 | my $grammar = 'calc'; |
| ef05c4d6 AD |
175 | my $iterations = -1; |
| 176 | my $verbose = 1; | |
| 3cedc2dc | 177 | |
| e1b74b92 | 178 | =head1 FUNCTIONS |
| 3cedc2dc | 179 | |
| e1b74b92 | 180 | =over 4 |
| 7e5f9c54 | 181 | |
| e1b74b92 | 182 | =item C<verbose($level, $message)> |
| 15129f25 | 183 | |
| e1b74b92 AD |
184 | Report the C<$message> is C<$level> E<lt>= C<$verbose>. |
| 185 | ||
| 186 | =cut | |
| 187 | ||
| 188 | sub verbose($$) | |
| 189 | { | |
| 190 | my ($level, $message) = @_; | |
| 191 | print STDERR $message | |
| 192 | if $level <= $verbose; | |
| 193 | } | |
| 15129f25 | 194 | |
| 3a2803df AD |
195 | |
| 196 | ###################################################################### | |
| 197 | ||
| 922730fe AD |
198 | =item C<directives($bench, @directive)> |
| 199 | ||
| 200 | Format the list of directives for Bison for bench named C<$bench>. | |
| 201 | ||
| 202 | =cut | |
| 203 | ||
| 204 | sub directives($@) | |
| 205 | { | |
| 5b421a4e | 206 | my ($bench, @directive) = @_; |
| 922730fe | 207 | my $res = "/* Directives for bench `$bench'. */\n"; |
| f6038cb8 | 208 | $res .= join ("\n", @directive) . "\n"; |
| 922730fe AD |
209 | $res .= "/* End of directives for bench `$bench'. */\n"; |
| 210 | return $res; | |
| 211 | } | |
| 212 | ||
| 3a2803df AD |
213 | ###################################################################### |
| 214 | ||
| 215 | =item C<generate_grammar_triangular ($base, $max, @directive)> | |
| 15129f25 AD |
216 | |
| 217 | Create a large triangular grammar which looks like : | |
| 218 | ||
| 219 | input: | |
| 220 | exp { if ($1 != 0) abort (); $$ = $1; } | |
| 221 | | input exp { if ($2 != $1 + 1) abort (); $$ = $2; } | |
| 222 | ; | |
| 223 | ||
| 224 | exp: | |
| 225 | END { $$ = 0; } | |
| 226 | | "1" END { $$ = 1; } | |
| 227 | | "1" "2" END { $$ = 2; } | |
| 228 | | "1" "2" "3" END { $$ = 3; } | |
| 229 | | "1" "2" "3" "4" END { $$ = 4; } | |
| 230 | | "1" "2" "3" "4" "5" END { $$ = 5; } | |
| 231 | ; | |
| 232 | ||
| 7e5f9c54 | 233 | C<$base> is the base name for the file to create (F<$base.y>). |
| 15129f25 | 234 | C<$max> is the number of such rules (here, 5). You may pass |
| 5b421a4e | 235 | additional Bison C<@directive>. |
| 15129f25 AD |
236 | |
| 237 | The created parser is self contained: it includes its scanner, and | |
| 238 | source of input. | |
| 239 | =cut | |
| 240 | ||
| 3a2803df | 241 | sub generate_grammar_triangular ($$@) |
| 3cedc2dc | 242 | { |
| 5b421a4e AD |
243 | my ($base, $max, @directive) = @_; |
| 244 | my $directives = directives ($base, @directive); | |
| 3cedc2dc AD |
245 | |
| 246 | my $out = new IO::File ">$base.y" | |
| 247 | or die; | |
| 248 | print $out <<EOF; | |
| 249 | %error-verbose | |
| 250 | %debug | |
| 251 | %{ | |
| 252 | #include <stdio.h> | |
| 253 | #include <stdlib.h> | |
| 254 | ||
| 255 | static int yylex (void); | |
| 256 | static void yyerror (const char *msg); | |
| 257 | %} | |
| 922730fe | 258 | $directives |
| 3cedc2dc AD |
259 | %union |
| 260 | { | |
| 261 | int val; | |
| 262 | }; | |
| 263 | ||
| 264 | %token END "end" | |
| 265 | %type <val> exp input | |
| 266 | EOF | |
| 267 | ||
| 268 | for my $size (1 .. $max) | |
| 269 | { | |
| 270 | print $out "%token t$size $size \"$size\"\n"; | |
| 271 | }; | |
| 272 | ||
| 273 | print $out <<EOF; | |
| 274 | %% | |
| 275 | input: | |
| 276 | exp { if (\$1 != 0) abort (); \$\$ = \$1; } | |
| 277 | | input exp { if (\$2 != \$1 + 1) abort (); \$\$ = \$2; } | |
| 278 | ; | |
| 279 | ||
| 280 | exp: | |
| 281 | END | |
| 282 | { \$\$ = 0; } | |
| 283 | EOF | |
| 284 | ||
| 285 | for my $size (1 .. $max) | |
| 286 | { | |
| 287 | use Text::Wrap; | |
| 288 | print $out wrap ("| ", " ", | |
| 289 | (map { "\"$_\"" } (1 .. $size)), | |
| 290 | " END \n"), | |
| 291 | " { \$\$ = $size; }\n"; | |
| 292 | }; | |
| 293 | print $out ";\n"; | |
| 294 | ||
| 295 | print $out <<EOF; | |
| 296 | %% | |
| 297 | static int | |
| 298 | yylex (void) | |
| 299 | { | |
| 300 | static int inner = 1; | |
| 301 | static int outer = 0; | |
| 302 | if (outer > $max) | |
| 303 | return 0; | |
| 304 | else if (inner > outer) | |
| 305 | { | |
| 306 | inner = 1; | |
| 307 | ++outer; | |
| 308 | return END; | |
| 309 | } | |
| 310 | return inner++; | |
| 311 | } | |
| 312 | ||
| 313 | static void | |
| 314 | yyerror (const char *msg) | |
| 315 | { | |
| 316 | fprintf (stderr, "%s\\n", msg); | |
| 317 | } | |
| 318 | ||
| 319 | int | |
| 320 | main (void) | |
| 321 | { | |
| 322 | yydebug = !!getenv ("YYDEBUG"); | |
| 323 | return yyparse (); | |
| 324 | } | |
| 325 | EOF | |
| 326 | } | |
| 327 | ||
| 328 | ################################################################## | |
| 329 | ||
| 15129f25 AD |
330 | =item C<calc_input ($base, $max)> |
| 331 | ||
| 7e5f9c54 | 332 | Generate the input file F<$base.input> for the calc parser. The input |
| 15129f25 AD |
333 | is composed of two expressions. The first one is using left recursion |
| 334 | only and consumes no stack. The second one requires a deep stack. | |
| 335 | These two expressions are repeated C<$max> times in the output file. | |
| 336 | ||
| 337 | =cut | |
| 338 | ||
| 3cedc2dc AD |
339 | sub calc_input ($$) |
| 340 | { | |
| 341 | my ($base, $max) = @_; | |
| 342 | my $out = new IO::File ">$base.input" | |
| 343 | or die; | |
| 344 | foreach (1 .. $max) | |
| 345 | { | |
| 346 | print $out "0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+55+56+57+58+59+60+61+62+63+64+65+66+67+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+87+88+89+90+91+92+93+94+95+96+97+98+99\n"; | |
| 347 | print $out "1+1*(2+2*(3+3*(4+4*(5+5*(6+6*(7+7*(8+8*(9+9*(10+10*(11+11*(12+12*(13+13*(14+14*(15+15*(16+16*(17+17*(18+18*(19+19*(20+20*(21+21*(22+22*(23+23*(24+24*(25+25*(26+26*(27+27*(28+28*(29+29*(30+30*(31+31*(32+32*(33+33*(34+34*(35+35*(36+36*(37+37*(38+38*(39+39*(40+40*(41+41*(42+42*(43+43*(44+44*(45+45*(46+46*(47+47*(48+48*(49+49*(50+50*(51+51*(52+52*(53+53*(54+54*(55+55*(56+56*(57+57*(58+58*(59+59*(60+60*(61+61*(62+62*(63+63*(64+64*(65+65*(66+66*(67+67*(68+68*(69+69*(70+70*(71+71*(72+72*(73+73*(74+74*(75+75*(76+76*(77+77*(78+78*(79+79*(80+80*(81+81*(82+82*(83+83*(84+84*(85+85*(86+86*(87+87*(88+88*(89+89*(90+90*(91+91*(92+92*(93+93*(94+94*(95+95*(96+96*(97+97*(98+98*(99+99*(100+100*(101+101*(102+102*(103+103*(104+104*(105+105*(106+106*(107+107*(108+108*(109+109*(110+110*(111+111*(112+112*(113+113*(114+114*(115+115*(116+116*(117+117*(118+118*(119+119*(120+120*(121+121*(122+122*(123+123*(124+124*(125+125*(126+126*(127+127*(128+128*(129+129*(130+130*(131+131*(132+132*(133+133*(134+134*(135+135*(136+136*(137+137*(138+138*(139+139*(140+140*(141+141*(142+142*(143+143*(144+144*(145+145*(146+146*(147+147*(148+148*(149+149*(150+150*(151+151*(152+152*(153+153*(154+154*(155+155*(156+156*(157+157*(158+158*(159+159*(160+160*(161+161*(162+162*(163+163*(164+164*(165+165*(166+166*(167+167*(168+168*(169+169*(170+170*(171+171*(172+172*(173+173*(174+174*(175+175*(176+176*(177+177*(178+178*(179+179*(180+180*(181+181*(182+182*(183+183*(184+184*(185+185*(186+186*(187+187*(188+188*(189+189*(190+190*(191+191*(192+192*(193+193*(194+194*(195+195*(196+196*(197+197*(198+198*(199+199*(200+200*(201+201*(202+202*(203+203*(204+204*(205+205*(206+206*(207+207*(208+208*(209+209*(210+210*(211+211*(212+212*(213+213*(214+214*(215+215*(216+216*(217+217*(218+218*(219+219*(220+220*(221+221*(222+222*(223+223*(224+224*(225+225*(226+226*(227+227*(228+228*(229+229*(230+230*(231+231*(232+232*(233+233*(234+234*(235+235*(236+236*(237+237*(238+238*(239+239*(240+240*(241+241*(242+242*(243+243*(244+244*(245+245*(246+246*(247+247*(248+248*(249+249*(250+250*(251+251*(252+252*(253+253*(254+254*(255+255*(256+256*(257+257*(258+258*(259+259*(260+260*(261+261*(262+262*(263+263*(264+264*(265+265*(266+266*(267+267*(268+268*(269+269*(270+270*(271+271*(272+272*(273+273*(274+274*(275+275*(276+276*(277+277*(278+278*(279+279*(280+280*(281+281*(282+282*(283+283*(284+284*(285+285*(286+286*(287+287*(288+288*(289+289*(290+290*(291+291*(292+292*(293+293*(294+294*(295+295*(296+296*(297+297*(298+298*(299+299*(300+300*(301+301*(302+302*(303+303*(304+304*(305+305*(306+306*(307+307*(308+308*(309+309*(310+310*(311+311*(312+312*(313+313*(314+314*(315+315*(316+316*(317+317*(318+318*(319+319*(320+320*(321+321*(322+322*(323+323*(324+324*(325+325*(326+326*(327+327*(328+328*(329+329*(330+330*(331+331*(332+332*(333+333*(334+334*(335+335*(336+336*(337+337*(338+338*(339+339*(340+340*(341+341*(342+342*(343+343*(344+344*(345+345*(346+346*(347+347*(348+348*(349+349*(350+350*(351+351*(352+352*(353+353*(354+354*(355+355*(356+356*(357+357*(358+358*(359+359*(360+360*(361+361*(362+362*(363+363*(364+364*(365+365*(366+366*(367+367*(368+368*(369+369*(370+370*(371+371*(372+372*(373+373*(374+374*(375+375*(376+376*(377+377*(378+378*(379+379*(380+380*(381+381*(382+382*(383+383*(384+384*(385+385*(386+386*(387+387*(388+388*(389+389*(390+390*(391+391*(392+392*(393+393*(394+394*(395+395*(396+396*(397+397*(398+398*(399+399*(400+400*(401+401*(402+402*(403+403*(404+404*(405+405*(406+406*(407+407*(408+408*(409+409*(410+410*(411+411*(412+412*(413+413*(414+414*(415+415*(416+416*(417+417*(418+418*(419+419*(420+420*(421+421*(422+422*(423+423*(424+424*(425+425*(426+426*(427+427*(428+428*(429+429*(430+430*(431+431*(432+432*(433+433*(434+434*(435+435*(436+436*(437+437*(438+438*(439+439*(440+440*(441+441*(442+442*(443+443*(444+444*(445+445*(446+446*(447+447*(448+448*(449+449*(450+450*(451+451*(452+452*(453+453*(454+454*(455+455*(456+456*(457+457*(458+458*(459+459*(460+460*(461+461*(462+462*(463+463*(464+464*(465+465*(466+466*(467+467*(468+468*(469+469*(470+470*(471+471*(472+472*(473+473*(474+474*(475+475*(476+476*(477+477*(478+478*(479+479*(480+480*(481+481*(482+482*(483+483*(484+484*(485+485*(486+486*(487+487*(488+488*(489+489*(490+490*(491+491*(492+492*(493+493*(494+494*(495+495*(496+496*(497+497*(498+498*(499+499*(500+500*(501+501*(502+502*(503+503*(504+504*(505+505*(506+506*(507+507*(508+508*(509+509*(510+510*(511+511*(512+512*(513+513*(514+514*(515+515*(516+516*(517+517*(518+518*(519+519*(520+520*(521+521*(522+522*(523+523*(524+524*(525+525*(526+526*(527+527*(528+528*(529+529*(530+530*(531+531*(532+532*(533+533*(534+534*(535+535*(536+536*(537+537*(538+538*(539+539*(540+540*(541+541*(542+542*(543+543*(544+544*(545+545*(546+546*(547+547*(548+548*(549+549*(550+550*(551+551*(552+552*(553+553*(554+554*(555+555*(556+556*(557+557*(558+558*(559+559*(560+560*(561+561*(562+562*(563+563*(564+564*(565+565*(566+566*(567+567*(568+568*(569+569*(570+570*(571+571*(572+572*(573+573*(574+574*(575+575*(576+576*(577+577*(578+578*(579+579*(580+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| |
| 348 | } | |
| 349 | } | |
| 350 | ||
| 351 | ################################################################## | |
| 3a2803df AD |
352 | |
| 353 | =item C<generate_grammar_calc ($base, $max, @directive)> | |
| 15129f25 | 354 | |
| 7e5f9c54 | 355 | Generate a Bison file F<$base.y> for a calculator parser in C. Pass |
| 5b421a4e | 356 | the additional Bison C<@directive>. C<$max> is ignored, but left to |
| 7109a18d | 357 | have the same interface as C<triangular_grammar>. |
| 15129f25 AD |
358 | |
| 359 | =cut | |
| 3cedc2dc | 360 | |
| 3a2803df | 361 | sub generate_grammar_calc ($$@) |
| 3cedc2dc | 362 | { |
| 5b421a4e AD |
363 | my ($base, $max, @directive) = @_; |
| 364 | my $directives = directives ($base, @directive); | |
| 3cedc2dc | 365 | |
| f10e19fd AD |
366 | # Putting this request here is stupid, since the input will be |
| 367 | # generated each time we generate a grammar. | |
| 368 | calc_input ('calc', 200); | |
| 369 | ||
| 3cedc2dc AD |
370 | my $out = new IO::File ">$base.y" |
| 371 | or die; | |
| 372 | print $out <<EOF; | |
| 373 | %{ | |
| 374 | #include <stdio.h> | |
| 375 | ||
| 376 | #include <stdlib.h> | |
| 377 | #include <string.h> | |
| 378 | #include <ctype.h> | |
| 379 | #define USE(Var) | |
| 380 | ||
| 381 | /* Exercise pre-prologue dependency to %union. */ | |
| 382 | typedef int semantic_value; | |
| 383 | ||
| 384 | static semantic_value global_result = 0; | |
| 385 | static int global_count = 0; | |
| 386 | %} | |
| 387 | ||
| 3cedc2dc AD |
388 | $directives |
| 389 | %error-verbose | |
| 922730fe | 390 | /* Exercise %union. */ |
| 3cedc2dc AD |
391 | %union |
| 392 | { | |
| 393 | semantic_value ival; | |
| 394 | }; | |
| 395 | ||
| 396 | %{ | |
| 397 | static int power (int base, int exponent); | |
| 398 | /* yyerror receives the location if: | |
| 399 | - %location & %pure & %glr | |
| 400 | - %location & %pure & %yacc & %parse-param. */ | |
| 401 | static void yyerror (const char *s); | |
| 402 | #if YYPURE | |
| 403 | static int yylex (YYSTYPE* yylvalp); | |
| 404 | #else | |
| 405 | static int yylex (void); | |
| 406 | #endif | |
| 407 | %} | |
| 408 | ||
| 409 | /* Bison Declarations */ | |
| 410 | %token CALC_EOF 0 "end of input" | |
| 411 | %token <ival> NUM "number" | |
| 412 | %type <ival> exp | |
| 413 | ||
| 414 | %nonassoc '=' /* comparison */ | |
| 415 | %left '-' '+' | |
| 416 | %left '*' '/' | |
| 417 | %left NEG /* negation--unary minus */ | |
| 418 | %right '^' /* exponentiation */ | |
| 419 | ||
| 420 | /* Grammar follows */ | |
| 421 | %% | |
| 422 | input: | |
| 423 | line | |
| 424 | | input line | |
| 425 | ; | |
| 426 | ||
| 427 | line: | |
| 428 | '\\n' | |
| 429 | | exp '\\n' { USE (\$1); } | |
| 430 | ; | |
| 431 | ||
| 432 | exp: | |
| 433 | NUM { \$\$ = \$1; } | |
| 434 | | exp '=' exp | |
| 435 | { | |
| 436 | if (\$1 != \$3) | |
| 437 | fprintf (stderr, "calc: error: %d != %d\\n", \$1, \$3); | |
| 438 | \$\$ = \$1; | |
| 439 | } | |
| 440 | | exp '+' exp { \$\$ = \$1 + \$3; } | |
| 441 | | exp '-' exp { \$\$ = \$1 - \$3; } | |
| 442 | | exp '*' exp { \$\$ = \$1 * \$3; } | |
| 443 | | exp '/' exp { \$\$ = \$1 / \$3; } | |
| 444 | | '-' exp %prec NEG { \$\$ = -\$2; } | |
| 445 | | exp '^' exp { \$\$ = power (\$1, \$3); } | |
| 446 | | '(' exp ')' { \$\$ = \$2; } | |
| 447 | | '(' error ')' { \$\$ = 1111; } | |
| 448 | | '!' { \$\$ = 0; YYERROR; } | |
| 449 | | '-' error { \$\$ = 0; YYERROR; } | |
| 450 | ; | |
| 451 | %% | |
| 452 | /* The input. */ | |
| 453 | static FILE *input; | |
| 454 | ||
| 455 | static void | |
| 456 | yyerror (const char *s) | |
| 457 | { | |
| 458 | fprintf (stderr, "%s\\n", s); | |
| 459 | } | |
| 460 | ||
| 461 | static int | |
| 462 | get_char (void) | |
| 463 | { | |
| 464 | return getc (input); | |
| 465 | } | |
| 466 | ||
| 467 | ||
| 468 | static void | |
| 469 | unget_char ( int c) | |
| 470 | { | |
| 471 | ungetc (c, input); | |
| 472 | } | |
| 473 | ||
| 474 | static int | |
| 475 | read_signed_integer (void) | |
| 476 | { | |
| 477 | int c = get_char (); | |
| 478 | int sign = 1; | |
| 479 | int n = 0; | |
| 480 | ||
| 481 | if (c == '-') | |
| 482 | { | |
| 483 | c = get_char (); | |
| 484 | sign = -1; | |
| 485 | } | |
| 486 | ||
| 487 | while (isdigit (c)) | |
| 488 | { | |
| 489 | n = 10 * n + (c - '0'); | |
| 490 | c = get_char (); | |
| 491 | } | |
| 492 | ||
| 493 | unget_char (c); | |
| 494 | ||
| 495 | return sign * n; | |
| 496 | } | |
| 497 | ||
| 3cedc2dc AD |
498 | static int |
| 499 | #if YYPURE | |
| 500 | # define yylval (*yylvalp) | |
| 501 | yylex (YYSTYPE* yylvalp) | |
| 502 | #else | |
| 503 | yylex (void) | |
| 504 | #endif | |
| 505 | { | |
| 506 | int c; | |
| 507 | ||
| 508 | /* Skip white space. */ | |
| 509 | while ((c = get_char ()) == ' ' || c == '\t') | |
| 0925d5bf | 510 | continue; |
| 3cedc2dc AD |
511 | |
| 512 | /* process numbers */ | |
| 513 | if (c == '.' || isdigit (c)) | |
| 514 | { | |
| 515 | unget_char ( c); | |
| 516 | yylval.ival = read_signed_integer (); | |
| 517 | return NUM; | |
| 518 | } | |
| 519 | ||
| 520 | /* Return end-of-file. */ | |
| 521 | if (c == EOF) | |
| 522 | return CALC_EOF; | |
| 523 | ||
| 524 | /* Return single chars. */ | |
| 525 | return c; | |
| 526 | } | |
| 527 | ||
| 528 | static int | |
| 529 | power (int base, int exponent) | |
| 530 | { | |
| 531 | int res = 1; | |
| 532 | if (exponent < 0) | |
| 533 | exit (3); | |
| 534 | for (/* Niente */; exponent; --exponent) | |
| 535 | res *= base; | |
| 536 | return res; | |
| 537 | } | |
| 538 | ||
| 539 | ||
| 3cedc2dc AD |
540 | int |
| 541 | main (int argc, const char **argv) | |
| 542 | { | |
| 543 | semantic_value result = 0; | |
| 544 | int count = 0; | |
| 545 | int status; | |
| 546 | ||
| 547 | input = fopen ("calc.input", "r"); | |
| 548 | if (!input) | |
| 549 | { | |
| 550 | perror ("calc.input"); | |
| 551 | return 3; | |
| 552 | } | |
| 553 | ||
| 554 | status = yyparse (); | |
| 555 | if (global_result != result) | |
| 556 | abort (); | |
| 557 | if (global_count != count) | |
| 558 | abort (); | |
| 559 | ||
| 560 | return status; | |
| 561 | } | |
| 562 | EOF | |
| 563 | } | |
| 564 | ||
| 565 | ################################################################## | |
| 566 | ||
| f10e19fd | 567 | =item C<generate_grammar_list ($base, $max, @directive)> |
| 7109a18d | 568 | |
| f10e19fd AD |
569 | Generate a Bison file F<$base.y> for a C++ parser that uses C++ |
| 570 | objects (std::string, std::list). Tailored for using %define variant. | |
| 7109a18d AD |
571 | |
| 572 | =cut | |
| 573 | ||
| f10e19fd | 574 | sub generate_grammar_list ($$@) |
| 7109a18d | 575 | { |
| 5b421a4e AD |
576 | my ($base, $max, @directive) = @_; |
| 577 | my $directives = directives ($base, @directive); | |
| 6e097787 | 578 | my $variant = grep { /%define "?variant"?/ } @directive; |
| 7109a18d AD |
579 | my $out = new IO::File ">$base.y" |
| 580 | or die; | |
| 581 | print $out <<EOF; | |
| 7109a18d AD |
582 | %language "C++" |
| 583 | %defines | |
| 5b421a4e | 584 | $directives |
| 7109a18d | 585 | |
| f10e19fd | 586 | %code requires // *.h |
| 7109a18d AD |
587 | { |
| 588 | #include <string> | |
| 589 | } | |
| 590 | ||
| f10e19fd | 591 | %code // *.c |
| 7109a18d AD |
592 | { |
| 593 | #include <algorithm> | |
| 594 | #include <iostream> | |
| 595 | #include <sstream> | |
| 596 | ||
| 597 | // Prototype of the yylex function providing subsequent tokens. | |
| 598 | static yy::parser::token_type yylex(yy::parser::semantic_type* yylval); | |
| 599 | ||
| 3a2803df | 600 | #define STAGE_MAX ($max * 10) // max = $max |
| c85be41a | 601 | |
| 7109a18d AD |
602 | #define USE_VARIANTS $variant |
| 603 | #if USE_VARIANTS | |
| 604 | # define IF_VARIANTS(True, False) True | |
| 605 | #else | |
| 606 | # define IF_VARIANTS(True, False) False | |
| 607 | #endif | |
| c85be41a AD |
608 | |
| 609 | #ifdef ONE_STAGE_BUILD | |
| 610 | # define IF_ONE_STAGE_BUILD(True, False) True | |
| 611 | #else | |
| 612 | # define IF_ONE_STAGE_BUILD(True, False) False | |
| 613 | #endif | |
| 7109a18d AD |
614 | } |
| 615 | EOF | |
| 616 | ||
| 617 | if ($variant) | |
| 618 | { | |
| 619 | print $out <<'EOF'; | |
| 7109a18d AD |
620 | %token <std::string> TEXT |
| 621 | %token <int> NUMBER | |
| 622 | %printer { std::cerr << "Number: " << $$; } <int> | |
| 623 | %printer { std::cerr << "Text: " << $$; } <std::string> | |
| 624 | %token END_OF_FILE 0 | |
| 625 | %type <std::string> text result | |
| 626 | ||
| 627 | %% | |
| 628 | result: | |
| 629 | text { /* Throw away the result. */ } | |
| 630 | ; | |
| 631 | ||
| 632 | text: | |
| 633 | /* nothing */ { /* This will generate an empty string */ } | |
| 634 | | text TEXT { std::swap($$,$1); $$.append($2); } | |
| 635 | | text NUMBER { | |
| 636 | std::swap($$,$1); | |
| 637 | std::ostringstream ss; | |
| 638 | ss << ' ' << $2; | |
| 639 | $$.append(ss.str()); | |
| 640 | } | |
| 641 | ; | |
| 642 | EOF | |
| 643 | } | |
| 644 | else | |
| 645 | { | |
| 8901f32e | 646 | # Not using Bison variants. |
| 7109a18d AD |
647 | print $out <<'EOF'; |
| 648 | %union {int ival; std::string* sval;} | |
| 649 | %token <sval> TEXT | |
| 650 | %token <ival> NUMBER | |
| 651 | %printer { std::cerr << "Number: " << $$; } <ival> | |
| 652 | %printer { std::cerr << "Text: " << *$$; } <sval> | |
| 653 | %token END_OF_FILE 0 | |
| 654 | %type <sval> text result | |
| 655 | ||
| 656 | %% | |
| 657 | result: | |
| 658 | text { delete $1; } | |
| 659 | ; | |
| 660 | ||
| 661 | text: | |
| 662 | /* nothing */ { $$ = new std::string; } | |
| 663 | | text TEXT { $$->append(*$2); delete $2; } | |
| 664 | | text NUMBER { | |
| 665 | std::ostringstream ss; | |
| 666 | ss << ' ' << $2; | |
| 667 | $$->append(ss.str()); | |
| 668 | } | |
| 669 | ; | |
| 670 | EOF | |
| 671 | } | |
| 672 | ||
| 673 | print $out <<'EOF'; | |
| 674 | %% | |
| 675 | static | |
| 676 | yy::parser::token_type | |
| 677 | yylex(yy::parser::semantic_type* yylval) | |
| 678 | { | |
| 679 | static int stage = -1; | |
| 680 | ++stage; | |
| 681 | if (stage == STAGE_MAX) | |
| 682 | return yy::parser::token::END_OF_FILE; | |
| 683 | else if (stage % 2) | |
| 684 | { | |
| c85be41a AD |
685 | #if USE_VARIANTS |
| 686 | # ifdef ONE_STAGE_BUILD | |
| 687 | yylval->build(stage); | |
| 688 | # else | |
| 689 | yylval->build<int>() = stage; | |
| 690 | # endif | |
| 691 | #else | |
| 692 | yylval->ival = stage; | |
| 693 | #endif | |
| 7109a18d AD |
694 | return yy::parser::token::NUMBER; |
| 695 | } | |
| 696 | else | |
| 697 | { | |
| c85be41a AD |
698 | #if USE_VARIANTS |
| 699 | # ifdef ONE_STAGE_BUILD | |
| 700 | yylval->build(std::string("A string.")); | |
| 701 | # else | |
| 702 | yylval->build<std::string>() = std::string("A string."); | |
| 703 | # endif | |
| 704 | #else | |
| 705 | yylval->sval = new std::string("A string."); | |
| 706 | #endif | |
| 7109a18d AD |
707 | return yy::parser::token::TEXT; |
| 708 | } | |
| 709 | abort(); | |
| 710 | } | |
| 711 | ||
| 712 | // Mandatory error function | |
| 713 | void | |
| 714 | yy::parser::error(const yy::parser::location_type& yylloc, | |
| 715 | const std::string& message) | |
| 716 | { | |
| 717 | std::cerr << yylloc << ": " << message << std::endl; | |
| 718 | } | |
| 719 | ||
| 720 | int main(int argc, char *argv[]) | |
| 721 | { | |
| 722 | yy::parser p; | |
| 5b421a4e | 723 | #if YYDEBUG |
| 7109a18d | 724 | p.set_debug_level(!!getenv("YYDEBUG")); |
| 5b421a4e | 725 | #endif |
| 7109a18d AD |
726 | p.parse(); |
| 727 | return 0; | |
| 728 | } | |
| 729 | EOF | |
| 730 | } | |
| 731 | ||
| 732 | ################################################################## | |
| 733 | ||
| 3a2803df AD |
734 | =item C<generate_grammar ($name, $base, @directive)> |
| 735 | ||
| 736 | Generate F<$base.y> by calling C<&generate_grammar_$name>. | |
| 737 | ||
| 738 | =cut | |
| 739 | ||
| 740 | sub generate_grammar ($$@) | |
| 741 | { | |
| 742 | my ($name, $base, @directive) = @_; | |
| c85be41a | 743 | verbose 3, "Generating $base.y\n"; |
| 3a2803df AD |
744 | my %generator = |
| 745 | ( | |
| 746 | "calc" => \&generate_grammar_calc, | |
| f10e19fd | 747 | "list" => \&generate_grammar_list, |
| 3a2803df | 748 | "triangular" => \&generate_grammar_triangular, |
| 3a2803df AD |
749 | ); |
| 750 | &{$generator{$name}}($base, 200, @directive); | |
| 751 | } | |
| 752 | ||
| 753 | ################################################################## | |
| 754 | ||
| 755 | =item C<run ($command)> | |
| 756 | ||
| 757 | Run, possibly verbosely, the shell C<$command>. | |
| 758 | ||
| 759 | =cut | |
| 760 | ||
| 761 | sub run ($) | |
| 762 | { | |
| 763 | my ($command) = @_; | |
| c85be41a | 764 | verbose 3, "$command\n"; |
| 3a2803df AD |
765 | system ("$command") == 0 |
| 766 | or die "$command failed"; | |
| 767 | } | |
| 768 | ||
| 769 | ################################################################## | |
| 770 | ||
| 15129f25 AD |
771 | =item C<compile ($base)> |
| 772 | ||
| 7109a18d AD |
773 | Compile C<$base.y> to an executable C, Using the C or C++ compiler |
| 774 | depending on the %language specification in C<$base.y>. | |
| 15129f25 AD |
775 | |
| 776 | =cut | |
| 777 | ||
| 3cedc2dc AD |
778 | sub compile ($) |
| 779 | { | |
| 780 | my ($base) = @_; | |
| 7109a18d AD |
781 | my $language = `sed -ne '/%language "\\(.*\\)"/{s//\\1/;p;q;}' $base.y`; |
| 782 | chomp $language; | |
| 783 | ||
| 784 | my $compiler = $language eq 'C++' ? $cxx : $cc; | |
| 785 | ||
| 3a2803df AD |
786 | run "$bison $base.y -o $base.c"; |
| 787 | run "$compiler -o $base $cflags $base.c"; | |
| 3cedc2dc AD |
788 | } |
| 789 | ||
| 3a2803df AD |
790 | ###################################################################### |
| 791 | ||
| f10e19fd | 792 | =item C<bench ($grammar, @token)> |
| 15129f25 | 793 | |
| f10e19fd AD |
794 | Generate benches for the C<$grammar> and the directive specification |
| 795 | given in the list of C<@token>. | |
| 15129f25 AD |
796 | |
| 797 | =cut | |
| 798 | ||
| f10e19fd | 799 | sub bench ($@) |
| 3cedc2dc | 800 | { |
| f10e19fd | 801 | my ($grammar, @token) = @_; |
| d11ee647 AD |
802 | use Benchmark qw (:all :hireswallclock); |
| 803 | ||
| f10e19fd AD |
804 | my @directive = parse (@token); |
| 805 | ||
| 7484f1d4 | 806 | # Set up the benches as expected by timethese. |
| 3cedc2dc | 807 | my %bench; |
| 757f8f98 AD |
808 | # A counter of directive sets. |
| 809 | my $count = 1; | |
| 810 | for my $d (@directive) | |
| 3cedc2dc | 811 | { |
| f10e19fd AD |
812 | $bench{$count} = $d; |
| 813 | printf " %2d. %s\n", $count, join (' ', split ("\n", $d)); | |
| 757f8f98 | 814 | $count++; |
| f10e19fd AD |
815 | }; |
| 816 | ||
| 817 | # For each bench, capture the size. | |
| 818 | my %size; | |
| 757f8f98 | 819 | |
| f10e19fd | 820 | while (my ($name, $directives) = each %bench) |
| 757f8f98 | 821 | { |
| f10e19fd AD |
822 | generate_grammar ($grammar, $name, $directives); |
| 823 | # Compile the executable. | |
| 824 | compile ($name); | |
| 825 | $bench{$name} = "system ('./$name');"; | |
| 826 | chop($size{$name} = `wc -c <$name`); | |
| 3cedc2dc AD |
827 | } |
| 828 | ||
| 7484f1d4 | 829 | # Run the benches. |
| d11ee647 AD |
830 | # |
| 831 | # STYLE can be any of 'all', 'none', 'noc', 'nop' or 'auto'. 'all' | |
| 832 | # shows each of the 5 times available ('wallclock' time, user time, | |
| 833 | # system time, user time of children, and system time of | |
| 834 | # children). 'noc' shows all except the two children times. 'nop' | |
| 835 | # shows only wallclock and the two children times. 'auto' (the | |
| 836 | # default) will act as 'all' unless the children times are both | |
| 837 | # zero, in which case it acts as 'noc'. 'none' prevents output. | |
| c85be41a | 838 | verbose 3, "Running the benches for $grammar\n"; |
| 7e5f9c54 | 839 | my $res = timethese ($iterations, \%bench, 'nop'); |
| d11ee647 AD |
840 | |
| 841 | # Output the speed result. | |
| 3cedc2dc | 842 | cmpthese ($res, 'nop'); |
| d11ee647 AD |
843 | |
| 844 | # Display the sizes. | |
| cac9e09b | 845 | print "Sizes (decreasing):\n"; |
| 0cc5bead | 846 | my $width = 10; |
| d11ee647 AD |
847 | for my $bench (keys %size) |
| 848 | { | |
| 0cc5bead AD |
849 | $width = length $bench |
| 850 | if $width < length $bench; | |
| 851 | } | |
| cac9e09b AD |
852 | # Benches sorted by decreasing size. |
| 853 | my @benches_per_size = sort {$size{$b} <=> $size{$a}} keys %size; | |
| 854 | for my $bench (@benches_per_size) | |
| 0cc5bead | 855 | { |
| cac9e09b | 856 | printf "%${width}s: %5.2fkB\n", $bench, $size{$bench} / 1024; |
| d11ee647 | 857 | } |
| 3cedc2dc AD |
858 | } |
| 859 | ||
| 3a2803df | 860 | ###################################################################### |
| 7484f1d4 AD |
861 | |
| 862 | =item C<bench_push_parser ()> | |
| 863 | ||
| 864 | Bench the C push parser against the pull parser, pure and impure | |
| 865 | interfaces. | |
| 866 | ||
| 867 | =cut | |
| 868 | ||
| 869 | sub bench_push_parser () | |
| 870 | { | |
| f10e19fd AD |
871 | bench ('calc', |
| 872 | ( | |
| 873 | '[', '%define api.pure', ']', | |
| 874 | '&', | |
| 875 | '[', '%define api.push_pull "both"', ']' | |
| 876 | )); | |
| 7484f1d4 AD |
877 | } |
| 878 | ||
| 3a2803df AD |
879 | ###################################################################### |
| 880 | ||
| 7109a18d AD |
881 | =item C<bench_variant_parser ()> |
| 882 | ||
| 883 | Bench the C++ lalr1.cc parser using Boost.Variants or %union. | |
| 884 | ||
| 885 | =cut | |
| 886 | ||
| 887 | sub bench_variant_parser () | |
| 888 | { | |
| c85be41a | 889 | bench ('list', |
| f10e19fd AD |
890 | ('%skeleton "lalr1.cc"', |
| 891 | '&', | |
| 892 | '[', '%debug', ']', | |
| 893 | '&', | |
| c85be41a AD |
894 | '[', '%define variant', |
| 895 | '&', | |
| 896 | '[', "%code {\n#define VARIANT_DESTROY\n}", ']', | |
| 897 | '&', | |
| 898 | '[', "%code {\n#define ONE_STAGE_BUILD\n}", ']', | |
| 899 | ']' | |
| f10e19fd | 900 | )); |
| 7109a18d AD |
901 | } |
| 902 | ||
| 3a2803df AD |
903 | ###################################################################### |
| 904 | ||
| 429b4848 AD |
905 | =item C<bench_fusion_parser ()> |
| 906 | ||
| 907 | Bench the C++ lalr1.cc parser using Boost.Variants or %union. | |
| 908 | ||
| 909 | =cut | |
| 910 | ||
| 911 | sub bench_fusion_parser () | |
| 912 | { | |
| f10e19fd AD |
913 | bench ('list', |
| 914 | ('%skeleton "lalr1-split.cc"', | |
| 915 | '|', | |
| 916 | '%skeleton "lalr1.cc"')); | |
| 757f8f98 AD |
917 | } |
| 918 | ||
| 7109a18d AD |
919 | ############################################################################ |
| 920 | ||
| 7e5f9c54 AD |
921 | sub help ($) |
| 922 | { | |
| 923 | my ($verbose) = @_; | |
| 924 | use Pod::Usage; | |
| 925 | # See <URL:http://perldoc.perl.org/pod2man.html#NOTES>. | |
| 926 | pod2usage( { -message => "Bench Bison parsers", | |
| 927 | -exitval => 0, | |
| 928 | -verbose => $verbose, | |
| 929 | -output => \*STDOUT }); | |
| 930 | } | |
| 931 | ||
| 3a2803df AD |
932 | ###################################################################### |
| 933 | ||
| f10e19fd AD |
934 | # The list of tokens parsed by the following functions. |
| 935 | my @token; | |
| 936 | ||
| 937 | # Parse directive specifications: | |
| 938 | # expr: term (| term)* | |
| 939 | # term: fact (& fact)* | |
| 940 | # fact: ( expr ) | [ expr ] | dirs | |
| 941 | sub parse (@) | |
| 942 | { | |
| 943 | @token = @_; | |
| c85be41a | 944 | verbose 3, "Parsing: @token\n"; |
| db65ca1f AD |
945 | my @res = parse_expr (); |
| 946 | die "expected end of directives, unexpected: @token" | |
| 947 | if defined $token[0]; | |
| 948 | return @res; | |
| f10e19fd AD |
949 | } |
| 950 | ||
| 951 | sub parse_expr () | |
| 952 | { | |
| 953 | my @res = parse_term (); | |
| 954 | while (defined $token[0] && $token[0] eq '|') | |
| 955 | { | |
| 956 | shift @token; | |
| 957 | # Alternation. | |
| 958 | push @res, parse_term (); | |
| 959 | } | |
| 960 | return @res; | |
| 961 | } | |
| 962 | ||
| 963 | sub parse_term () | |
| 964 | { | |
| 965 | my @res = parse_fact (); | |
| 966 | while (defined $token[0] && $token[0] eq '&') | |
| 967 | { | |
| 968 | shift @token; | |
| 969 | # Cartesian product. | |
| 970 | my @lhs = @res; | |
| 971 | @res = (); | |
| 972 | for my $rhs (parse_fact ()) | |
| 973 | { | |
| 974 | for my $lhs (@lhs) | |
| 975 | { | |
| 976 | push @res, "$lhs\n$rhs"; | |
| 977 | } | |
| 978 | } | |
| 979 | } | |
| 980 | return @res; | |
| 981 | } | |
| 982 | ||
| 983 | sub parse_fact () | |
| 984 | { | |
| 985 | my @res; | |
| 986 | die "unexpected end of expression" | |
| 987 | unless defined $token[0]; | |
| 988 | ||
| 989 | if ($token[0] eq '(') | |
| 990 | { | |
| 991 | shift @token; | |
| 992 | @res = parse_expr (); | |
| 993 | die "unexpected $token[0], expected )" | |
| 994 | unless $token[0] eq ')'; | |
| 995 | shift @token; | |
| 996 | } | |
| 997 | elsif ($token[0] eq '[') | |
| 998 | { | |
| 999 | shift @token; | |
| 1000 | @res = (parse_expr (), ''); | |
| 1001 | die "unexpected $token[0], expected ]" | |
| 1002 | unless $token[0] eq ']'; | |
| 1003 | shift @token; | |
| 1004 | } | |
| 1005 | else | |
| 1006 | { | |
| 1007 | @res = $token[0]; | |
| 1008 | shift @token; | |
| 1009 | } | |
| 1010 | return @res; | |
| 1011 | } | |
| 1012 | ||
| 1013 | ###################################################################### | |
| 1014 | ||
| 7e5f9c54 AD |
1015 | sub getopt () |
| 1016 | { | |
| 1017 | use Getopt::Long; | |
| 3a2803df | 1018 | my %option = ( |
| f10e19fd | 1019 | "b|bench=s" => \$bench, |
| a6df593d | 1020 | "c|cflags=s" => \$cflags, |
| 757f8f98 | 1021 | "d|directive=s" => \@directive, |
| f10e19fd | 1022 | "g|grammar=s" => \$grammar, |
| a6df593d AD |
1023 | "h|help" => sub { help ($verbose) }, |
| 1024 | "i|iterations=i" => \$iterations, | |
| ef05c4d6 | 1025 | "q|quiet" => sub { --$verbose }, |
| a6df593d AD |
1026 | "v|verbose" => sub { ++$verbose }, |
| 1027 | ); | |
| 7e5f9c54 AD |
1028 | Getopt::Long::Configure ("bundling", "pass_through"); |
| 1029 | GetOptions (%option) | |
| 1030 | or exit 1; | |
| 1031 | } | |
| 1032 | ||
| 1033 | ###################################################################### | |
| 1034 | ||
| 1035 | getopt; | |
| c85be41a AD |
1036 | |
| 1037 | # Create the directory we work in. | |
| 1038 | my $count = 1; | |
| 1039 | ++$count | |
| 1040 | while -d "bench-$count"; | |
| 1041 | my $dir = "bench-$count"; | |
| 1042 | mkdir $dir | |
| 1043 | or die "cannot create $dir"; | |
| 1044 | chdir $dir | |
| 1045 | or die "cannot chdir $dir"; | |
| 6e097787 AD |
1046 | # The following message is tailored to please Emacs' compilation-mode. |
| 1047 | verbose 1, "Entering directory `$dir'\n"; | |
| e1b74b92 | 1048 | verbose 1, "Using bison=$bison.\n"; |
| c85be41a AD |
1049 | verbose 2, "Using cc=$cc.\n"; |
| 1050 | verbose 2, "Using cxx=$cxx.\n"; | |
| 1051 | verbose 2, "Using cflags=$cflags.\n"; | |
| f10e19fd AD |
1052 | verbose 2, "Grammar: $grammar\n"; |
| 1053 | ||
| a6df593d | 1054 | |
| c85be41a AD |
1055 | # Support -b: predefined benches. |
| 1056 | my %bench = | |
| 1057 | ( | |
| 1058 | "fusion" => \&bench_fusion_parser, | |
| 1059 | "push" => \&bench_push_parser, | |
| 1060 | "variant" => \&bench_variant_parser, | |
| 1061 | ); | |
| 1062 | ||
| 1063 | if (defined $bench) | |
| 1064 | { | |
| 1065 | die "invalid argument for --bench: $bench" | |
| 1066 | unless defined $bench{$bench}; | |
| 1067 | &{$bench{$bench}}(); | |
| 1068 | exit 0; | |
| 1069 | } | |
| 1070 | else | |
| 1071 | { | |
| 1072 | # Launch the bench marking. | |
| 1073 | bench ($grammar, @ARGV); | |
| 1074 | } | |
| 3cedc2dc AD |
1075 | |
| 1076 | ### Setup "GNU" style for perl-mode and cperl-mode. | |
| 1077 | ## Local Variables: | |
| 1078 | ## perl-indent-level: 2 | |
| 1079 | ## perl-continued-statement-offset: 2 | |
| 1080 | ## perl-continued-brace-offset: 0 | |
| 1081 | ## perl-brace-offset: 0 | |
| 1082 | ## perl-brace-imaginary-offset: 0 | |
| 1083 | ## perl-label-offset: -2 | |
| 1084 | ## cperl-indent-level: 2 | |
| 1085 | ## cperl-brace-offset: 0 | |
| 1086 | ## cperl-continued-brace-offset: 0 | |
| 1087 | ## cperl-label-offset: -2 | |
| 1088 | ## cperl-extra-newline-before-brace: t | |
| 1089 | ## cperl-merge-trailing-else: nil | |
| 1090 | ## cperl-continued-statement-offset: 2 | |
| 1091 | ## End: |