X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/fce629c0efad342c9b1c538eb447b22731e031d0..ccdc1577ef7fb32a5e30cb655337e7cd42b98987:/etc/bench.pl.in?ds=inline

diff --git a/etc/bench.pl.in b/etc/bench.pl.in
index 0e536290..5d83fc7b 100755
--- a/etc/bench.pl.in
+++ b/etc/bench.pl.in
@@ -1,6 +1,6 @@
 #! /usr/bin/perl -w
 
-# Copyright (C) 2006, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2008-2012 Free Software Foundation, Inc.
 #
 # This file is part of Bison, the GNU Compiler Compiler.
 #
@@ -57,11 +57,6 @@ request.
 
 =over 4
 
-=item I<fusion>
-
-Test F<lalr1.cc> with three stacks against F<lalr1-fusion.cc> which
-uses a single one.
-
 =item I<push>
 
 Test the push parser vs. the pull interface.  Use the C parser.
@@ -251,7 +246,6 @@ sub generate_grammar_triangular ($$@)
     or die;
   print $out <<EOF;
 %error-verbose
-%debug
 %{
 #include <stdio.h>
 #include <stdlib.h>
@@ -290,8 +284,8 @@ for my $size (1 .. $max)
   {
     use Text::Wrap;
     print $out wrap ("| ", "   ",
-		     (map { "\"$_\"" } (1 .. $size)),
-		     " END \n"),
+                     (map { "\"$_\"" } (1 .. $size)),
+                     " END \n"),
                "    { \$\$ = $size; }\n";
   };
 print $out ";\n";
@@ -323,7 +317,9 @@ yyerror (const char *msg)
 int
 main (void)
 {
+#if YYDEBUG
   yydebug = !!getenv ("YYDEBUG");
+#endif
   return yyparse ();
 }
 EOF
@@ -375,8 +371,8 @@ sub generate_grammar_calc ($$@)
     or die;
   print $out <<EOF;
 %{
+#include <assert.h>
 #include <stdio.h>
-
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
@@ -415,7 +411,7 @@ static int yylex (void);
 %token <ival> NUM "number"
 %type  <ival> exp
 
-%nonassoc '=' /* comparison	       */
+%nonassoc '=' /* comparison            */
 %left '-' '+'
 %left '*' '/'
 %left NEG     /* negation--unary minus */
@@ -532,9 +528,8 @@ yylex (void)
 static int
 power (int base, int exponent)
 {
+  assert (0 <= exponent);
   int res = 1;
-  if (exponent < 0)
-    exit (3);
   for (/* Niente */; exponent; --exponent)
     res *= base;
   return res;
@@ -548,6 +543,10 @@ main (int argc, const char **argv)
   int count = 0;
   int status;
 
+#if YYDEBUG
+  yydebug = !!getenv ("YYDEBUG");
+#endif
+
   input = fopen ("calc.input", "r");
   if (!input)
     {
@@ -580,11 +579,13 @@ sub generate_grammar_list ($$@)
   my ($base, $max, @directive) = @_;
   my $directives = directives ($base, @directive);
   my $variant = grep { /%define "?variant"?/ } @directive;
+  my $lex_symbol = grep { /%define "?lex_symbol"?/ } @directive;
   my $out = new IO::File ">$base.y"
     or die;
   print $out <<EOF;
 %language "C++"
 %defines
+%locations
 $directives
 
 %code requires // *.h
@@ -598,24 +599,33 @@ $directives
 #include <iostream>
 #include <sstream>
 
-// Prototype of the yylex function providing subsequent tokens.
-static yy::parser::token_type yylex(yy::parser::semantic_type* yylval);
-
 #define STAGE_MAX    ($max * 10) // max = $max
 
+#define USE_LEX_SYMBOL $lex_symbol
 #define USE_VARIANTS $variant
-#if USE_VARIANTS
-# define IF_VARIANTS(True, False) True
-#else
-# define IF_VARIANTS(True, False) False
-#endif
 
-#ifdef ONE_STAGE_BUILD
-# define IF_ONE_STAGE_BUILD(True, False) True
+  // Prototype of the yylex function providing subsequent tokens.
+  static
+#if USE_LEX_SYMBOL
+  yy::parser::symbol_type yylex();
 #else
-# define IF_ONE_STAGE_BUILD(True, False) False
+  yy::parser::token_type yylex(yy::parser::semantic_type* yylval,
+                               yy::parser::location_type* yylloc);
 #endif
+
+  // Conversion to string.
+  template <typename T>
+    inline
+    std::string
+    string_cast (const T& t)
+  {
+    std::ostringstream o;
+    o << t;
+    return o.str ();
+  }
 }
+
+%token END_OF_FILE 0
 EOF
 
   if ($variant)
@@ -625,22 +635,17 @@ EOF
 %token <int> NUMBER
 %printer { std::cerr << "Number: " << $$; } <int>
 %printer { std::cerr << "Text: " << $$; } <std::string>
-%token END_OF_FILE 0
 %type <std::string> text result
 
 %%
 result:
-  text			{ /* Throw away the result. */ }
+  text                  { /* Throw away the result. */ }
 ;
 
 text:
-  /* nothing */		{ /* This will generate an empty string */ }
-| text TEXT		{ std::swap ($$, $2); }
-| text NUMBER		{
-			  std::ostringstream ss;
-			  ss << ' ' << $2;
-			  $$ = ss.str();
-			 }
+  /* nothing */         { /* This will generate an empty string */ }
+| text TEXT             { std::swap ($$, $2); }
+| text NUMBER           { $$ = string_cast($2); }
 ;
 EOF
     }
@@ -653,72 +658,86 @@ EOF
 %token <ival> NUMBER
 %printer { std::cerr << "Number: " << $$; } <ival>
 %printer { std::cerr << "Text: " << *$$; } <sval>
-%token END_OF_FILE 0
 %type <sval> text result
 
 %%
 result:
-  text			{ delete $1; }
+  text                  { delete $1; }
 ;
 
 text:
-  /* nothing */		{ $$ = new std::string; }
-| text TEXT		{ delete $1; $$ = $2; }
-| text NUMBER		{
-                          delete $1;
-                          std::ostringstream ss;
-			  ss << ' ' << $2;
-			  $$ = new std::string (ss.str());
-			 }
+  /* nothing */         { $$ = new std::string; }
+| text TEXT             { delete $1; $$ = $2; }
+| text NUMBER           { delete $1; $$ = new std::string (string_cast ($2)); }
 ;
 EOF
     }
 
   print $out <<'EOF';
 %%
+#
+
 static
-yy::parser::token_type
-yylex(yy::parser::semantic_type* yylval)
+#if USE_LEX_SYMBOL
+yy::parser::symbol_type yylex()
+#else
+yy::parser::token_type yylex(yy::parser::semantic_type* yylval,
+                             yy::parser::location_type* yylloc)
+#endif
 {
+  typedef yy::parser::location_type location_type;
+  typedef yy::parser::token token;
   static int stage = -1;
   ++stage;
   if (stage == STAGE_MAX)
-    return yy::parser::token::END_OF_FILE;
+    {
+#if USE_LEX_SYMBOL
+      return yy::parser::make_END_OF_FILE (location_type ());
+#else
+      *yylloc = location_type ();
+      return token::END_OF_FILE;
+#endif
+    }
   else if (stage % 2)
     {
-#if USE_VARIANTS
-# ifdef ONE_STAGE_BUILD
+#if USE_LEX_SYMBOL
+      return yy::parser::make_NUMBER (stage, location_type ());
+#else
+# if defined ONE_STAGE_BUILD
       yylval->build(stage);
-# else
+# elif USE_VARIANTS
       yylval->build<int>() = stage;
-# endif
-#else
+# else
       yylval->ival = stage;
+# endif
+      *yylloc = location_type ();
+      return token::NUMBER;
 #endif
-      return yy::parser::token::NUMBER;
     }
   else
     {
-#if USE_VARIANTS
-# ifdef ONE_STAGE_BUILD
+#if USE_LEX_SYMBOL
+      return yy::parser::make_TEXT ("A string.", location_type ());
+#else
+# if defined ONE_STAGE_BUILD
       yylval->build(std::string("A string."));
-# else
+# elif USE_VARIANTS
       yylval->build<std::string>() = std::string("A string.");
-# endif
-#else
+# else
       yylval->sval = new std::string("A string.");
+# endif
+      *yylloc = location_type ();
+      return token::TEXT;
 #endif
-      return yy::parser::token::TEXT;
     }
   abort();
 }
 
 // Mandatory error function
 void
-yy::parser::error(const yy::parser::location_type& yylloc,
-                  const std::string& message)
+yy::parser::error(const yy::parser::location_type& loc, const std::string& msg)
 {
-  std::cerr << yylloc << ": " << message << std::endl;
+  std::cerr << loc << ": " << msg << std::endl;
 }
 
 int main(int argc, char *argv[])
@@ -876,7 +895,7 @@ sub bench_push_parser ()
          qw(
             [ %d api.pure ]
             &
-            [ %d api.push_pull=both ]
+            [ %d api.push-pull=both ]
          ));
 }
 
@@ -884,7 +903,7 @@ sub bench_push_parser ()
 
 =item C<bench_variant_parser ()>
 
-Bench the C++ lalr1.cc parser using Boost.Variants or %union.
+Bench the C++ lalr1.cc parser using variants or %union.
 
 =cut
 
@@ -892,37 +911,15 @@ sub bench_variant_parser ()
 {
   bench ('list',
          qw(
-            [ %debug ]
-            &
-            [ %d variant
-              &
-              [ #d VARIANT_DESTROY ]
+            [
+              %d variant
               &
-              [ #d ONE_STAGE_BUILD ]
+              [ #d ONE_STAGE_BUILD | %d lex_symbol ]
             ]
          )
     );
 }
 
-######################################################################
-
-=item C<bench_fusion_parser ()>
-
-Bench the C++ lalr1.cc parser using Boost.Variants or %union.
-
-=cut
-
-sub bench_fusion_parser ()
-{
-  bench ('list',
-         qw(
-             %s lalr1-split.cc
-           |
-             %s lalr1.cc
-         )
-    );
-}
-
 ############################################################################
 
 sub help ($)
@@ -993,7 +990,7 @@ sub parse_term ()
         {
           for my $lhs (@lhs)
             {
-              push @res, "$lhs\n$rhs";
+              push @res, $lhs . ($lhs && $rhs ? "\n" : "") . $rhs;
             }
         }
     }
@@ -1108,7 +1105,6 @@ verbose 2, "Grammar: $grammar\n";
 # Support -b: predefined benches.
 my %bench =
   (
-   "fusion"   => \&bench_fusion_parser,
    "push"     => \&bench_push_parser,
    "variant"  => \&bench_variant_parser,
   );