manual/libm-err-tab.pl

   1 #!/usr/bin/perl -w
   2 # Copyright (C) 1999-2016 Free Software Foundation, Inc.
   3 # This file is part of the GNU C Library.
   4 # Contributed by Andreas Jaeger <aj@suse.de>, 1999.
   5
   6 # The GNU C Library is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU Lesser General Public
   8 # License as published by the Free Software Foundation; either
   9 # version 2.1 of the License, or (at your option) any later version.
  10
  11 # The GNU C Library is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # Lesser General Public License for more details.
  15
  16 # You should have received a copy of the GNU Lesser General Public
  17 # License along with the GNU C Library; if not, see
  18 # <http://www.gnu.org/licenses/>.
  19
  20 # Information about tests are stored in: %results
  21 # $results{$test}{"type"} is the result type, e.g. normal or complex.
  22 # In the following description $platform, $type and $float are:
  23 # - $platform is the used platform
  24 # - $type is either "normal", "real" (for the real part of a complex number)
  25 #   or "imag" (for the imaginary part # of a complex number).
  26 # - $float is either of float, ifloat, double, idouble, ldouble, ildouble;
  27 #   It represents the underlying floating point type (float, double or long
  28 #   double) and if inline functions (the leading i stands for inline)
  29 #   are used.
  30 # $results{$test}{$platform}{$type}{$float} is defined and has a delta
  31 # or 'fail' as value.
  32
  33 use File::Find;
  34
  35 use strict;
  36
  37 use vars qw ($sources @platforms %pplatforms);
  38 use vars qw (%results @all_floats %suffices @all_functions);
  39
  40
  41 # all_floats is in output order and contains all recognised float types that
  42 # we're going to output
  43 @all_floats = ('float', 'double', 'ldouble');
  44 %suffices =
  45   ( 'float' => 'f',
  46     'double' => '',
  47     'ldouble' => 'l'
  48   );
  49
  50 # Pretty description of platform
  51 %pplatforms = ();
  52
  53 @all_functions =
  54   ( "acos", "acosh", "asin", "asinh", "atan", "atanh",
  55     "atan2", "cabs", "cacos", "cacosh", "carg", "casin", "casinh",
  56     "catan", "catanh", "cbrt", "ccos", "ccosh", "ceil", "cexp", "cimag",
  57     "clog", "clog10", "conj", "copysign", "cos", "cosh", "cpow", "cproj",
  58     "creal", "csin", "csinh", "csqrt", "ctan", "ctanh", "erf", "erfc",
  59     "exp", "exp10", "exp2", "expm1", "fabs", "fdim", "floor", "fma",
  60     "fmax", "fmin", "fmod", "frexp", "gamma", "hypot",
  61     "ilogb", "j0", "j1", "jn", "lgamma", "lrint",
  62     "llrint", "log", "log10", "log1p", "log2", "logb", "lround",
  63     "llround", "modf", "nearbyint", "nextafter", "nextdown", "nexttoward",
  64     "nextup", "pow", "remainder", "remquo", "rint", "round", "scalb",
  65     "scalbn", "sin", "sincos", "sinh", "sqrt", "tan", "tanh", "tgamma",
  66     "trunc", "y0", "y1", "yn" );
  67 # canonicalize, fpclassify, getpayload, iscanonical, isnormal,
  68 # isfinite, isinf, isnan, issignaling, issubnormal, iszero, signbit,
  69 # iseqsig, isgreater, isgreaterequal, isless, islessequal,
  70 # islessgreater, isunordered, totalorder, totalordermag
  71 # are not tabulated.
  72
  73 if ($#ARGV == 0) {
  74   $sources = $ARGV[0];
  75 } else {
  76   $sources = '/usr/src/cvs/libc';
  77 }
  78
  79 find (\&find_files, $sources);
  80
  81 @platforms = sort by_platforms @platforms;
  82
  83 &print_all;
  84
  85 sub find_files {
  86   if ($_ eq 'libm-test-ulps') {
  87     # print "Parsing $File::Find::name\n";
  88     push @platforms, $File::Find::dir;
  89     my ($file, $name);
  90     $file = "${File::Find::name}-name";
  91     open NAME, $file or die ("Can't open $file: $!");
  92     $name = <NAME>;
  93     chomp $name;
  94     close NAME;
  95     $pplatforms{$File::Find::dir} = $name;
  96     &parse_ulps ($File::Find::name, $File::Find::dir);
  97   }
  98 }
  99
 100 # Parse ulps file
 101 sub parse_ulps {
 102   my ($file, $platform) = @_;
 103   my ($test, $type, $float, $eps);
 104
 105   # $type has the following values:
 106   # "normal": No complex variable
 107   # "real": Real part of complex result
 108   # "imag": Imaginary part of complex result
 109   open ULP, $file  or die ("Can't open $file: $!");
 110   while (<ULP>) {
 111     chop;
 112     # ignore comments and empty lines
 113     next if /^#/;
 114     next if /^\s*$/;
 115     if (/^Function: /) {
 116       if (/Real part of/) {
 117         s/Real part of //;
 118         $type = 'real';
 119       } elsif (/Imaginary part of/) {
 120         s/Imaginary part of //;
 121         $type = 'imag';
 122       } else {
 123         $type = 'normal';
 124       }
 125       ($test) = ($_ =~ /^Function:\s*\"([a-zA-Z0-9_]+)\"/);
 126       next;
 127     }
 128     if (/^i?(float|double|ldouble):/) {
 129       ($float, $eps) = split /\s*:\s*/,$_,2;
 130       if ($eps eq 'fail') {
 131         $results{$test}{$platform}{$type}{$float} = 'fail';
 132       } elsif ($eps eq "0") {
 133         # ignore
 134         next;
 135       } elsif (!exists $results{$test}{$platform}{$type}{$float}
 136             || $results{$test}{$platform}{$type}{$float} ne 'fail') {
 137         $results{$test}{$platform}{$type}{$float} = $eps;
 138       }
 139       if ($type =~ /^real|imag$/) {
 140         $results{$test}{'type'} = 'complex';
 141       } elsif ($type eq 'normal') {
 142         $results{$test}{'type'} = 'normal';
 143       }
 144       next;
 145     }
 146     print "Skipping unknown entry: `$_'\n";
 147   }
 148   close ULP;
 149 }
 150
 151 sub get_value {
 152   my ($fct, $platform, $type, $float) = @_;
 153
 154   return (exists $results{$fct}{$platform}{$type}{$float}
 155           ? $results{$fct}{$platform}{$type}{$float} : "0");
 156 }
 157
 158 sub print_platforms {
 159   my (@p) = @_;
 160   my ($fct, $platform, $float, $first, $i, $platform_no, $platform_total);
 161
 162   print '@multitable {nexttowardf} ';
 163   foreach (@p) {
 164     print ' {1000 + i 1000}';
 165   }
 166   print "\n";
 167
 168   print '@item Function ';
 169   foreach (@p) {
 170     print ' @tab ';
 171     print $pplatforms{$_};
 172   }
 173   print "\n";
 174
 175
 176   foreach $fct (@all_functions) {
 177     foreach $float (@all_floats) {
 178       print "\@item $fct$suffices{$float} ";
 179       foreach $platform (@p) {
 180         print ' @tab ';
 181         if (exists $results{$fct}{$platform}{'normal'}{$float}
 182             || exists $results{$fct}{$platform}{'real'}{$float}
 183             || exists $results{$fct}{$platform}{'imag'}{$float}) {
 184           if ($results{$fct}{'type'} eq 'complex') {
 185             print &get_value ($fct, $platform, 'real', $float),
 186             ' + i ', &get_value ($fct, $platform, 'imag', $float);
 187           } else {
 188             print $results{$fct}{$platform}{'normal'}{$float};
 189           }
 190         } else {
 191           print '-';
 192         }
 193       }
 194       print "\n";
 195     }
 196   }
 197
 198   print "\@end multitable\n";
 199 }
 200
 201 sub print_all {
 202   my ($i, $max);
 203
 204   my ($columns) = 5;
 205
 206   # Print only 5 platforms at a time.
 207   for ($i=0; $i < $#platforms; $i+=$columns) {
 208     $max = $i+$columns-1 > $#platforms ? $#platforms : $i+$columns-1;
 209     print_platforms (@platforms[$i .. $max]);
 210   }
 211 }
 212
 213 sub by_platforms {
 214   return $pplatforms{$a} cmp $pplatforms{$b};
 215 }