math/gen-libm-test.pl

   1 #!/usr/bin/perl -w
   2 # Copyright (C) 1999-2013 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 # This file needs to be tidied up
  21 # Note that functions and tests share the same namespace.
  22
  23 # Information about tests are stored in: %results
  24 # $results{$test}{"kind"} is either "fct" or "test" and flags whether this
  25 # is a maximal error of a function or a single test.
  26 # $results{$test}{"type"} is the result type, e.g. normal or complex.
  27 # $results{$test}{"has_ulps"} is set if deltas exist.
  28 # $results{$test}{"has_fails"} is set if exptected failures exist.
  29 # In the following description $type and $float are:
  30 # - $type is either "normal", "real" (for the real part of a complex number)
  31 #   or "imag" (for the imaginary part # of a complex number).
  32 # - $float is either of float, ifloat, double, idouble, ldouble, ildouble;
  33 #   It represents the underlying floating point type (float, double or long
  34 #   double) and if inline functions (the leading i stands for inline)
  35 #   are used.
  36 # $results{$test}{$type}{"fail"}{$float} is defined and has a 1 if
  37 # the test is expected to fail
  38 # $results{$test}{$type}{"ulp"}{$float} is defined and has a delta as value
  39
  40
  41 use Getopt::Std;
  42
  43 use strict;
  44
  45 use vars qw ($input $output);
  46 use vars qw (%results);
  47 use vars qw (@tests @functions);
  48 use vars qw ($count);
  49 use vars qw (%beautify @all_floats);
  50 use vars qw ($output_dir $ulps_file);
  51
  52 # all_floats is sorted and contains all recognised float types
  53 @all_floats = ('double', 'float', 'idouble',
  54                'ifloat', 'ildouble', 'ldouble');
  55
  56 %beautify =
  57   ( "minus_zero" => "-0",
  58     "plus_zero" => "+0",
  59     "minus_infty" => "-inf",
  60     "plus_infty" => "inf",
  61     "nan_value" => "NaN",
  62     "M_El" => "e",
  63     "M_E2l" => "e^2",
  64     "M_E3l" => "e^3",
  65     "M_LOG10El", "log10(e)",
  66     "M_PIl" => "pi",
  67     "M_PI_34l" => "3/4 pi",
  68     "M_PI_2l" => "pi/2",
  69     "M_PI_4l" => "pi/4",
  70     "M_PI_6l" => "pi/6",
  71     "M_PI_34_LOG10El" => "3/4 pi*log10(e)",
  72     "M_PI_LOG10El" => "pi*log10(e)",
  73     "M_PI2_LOG10El" => "pi/2*log10(e)",
  74     "M_PI4_LOG10El" => "pi/4*log10(e)",
  75     "M_LOG_SQRT_PIl" => "log(sqrt(pi))",
  76     "M_LOG_2_SQRT_PIl" => "log(2*sqrt(pi))",
  77     "M_2_SQRT_PIl" => "2 sqrt (pi)",
  78     "M_SQRT_PIl" => "sqrt (pi)",
  79   );
  80
  81
  82 # get Options
  83 # Options:
  84 # u: ulps-file
  85 # h: help
  86 # o: output-directory
  87 # n: generate new ulps file
  88 use vars qw($opt_u $opt_h $opt_o $opt_n);
  89 getopts('u:o:nh');
  90
  91 $ulps_file = 'libm-test-ulps';
  92 $output_dir = '';
  93
  94 if ($opt_h) {
  95   print "Usage: gen-libm-test.pl [OPTIONS]\n";
  96   print " -h         print this help, then exit\n";
  97   print " -o DIR     directory where generated files will be placed\n";
  98   print " -n         only generate sorted file NewUlps from libm-test-ulps\n";
  99   print " -u FILE    input file with ulps\n";
 100   exit 0;
 101 }
 102
 103 $ulps_file = $opt_u if ($opt_u);
 104 $output_dir = $opt_o if ($opt_o);
 105
 106 $input = "libm-test.inc";
 107 $output = "${output_dir}libm-test.c";
 108
 109 $count = 0;
 110
 111 &parse_ulps ($ulps_file);
 112 &generate_testfile ($input, $output) unless ($opt_n);
 113 &output_ulps ("${output_dir}libm-test-ulps.h", $ulps_file) unless ($opt_n);
 114 &print_ulps_file ("${output_dir}NewUlps") if ($opt_n);
 115
 116 # Return a nicer representation
 117 sub beautify {
 118   my ($arg) = @_;
 119   my ($tmp);
 120
 121   if (exists $beautify{$arg}) {
 122     return $beautify{$arg};
 123   }
 124   if ($arg =~ /^-/) {
 125     $tmp = $arg;
 126     $tmp =~ s/^-//;
 127     if (exists $beautify{$tmp}) {
 128       return '-' . $beautify{$tmp};
 129     }
 130   }
 131   if ($arg =~ /[0-9]L$/) {
 132     $arg =~ s/L$//;
 133   }
 134   return $arg;
 135 }
 136
 137 # Return a nicer representation of a complex number
 138 sub build_complex_beautify {
 139   my ($r, $i) = @_;
 140   my ($str1, $str2);
 141
 142   $str1 = &beautify ($r);
 143   $str2 = &beautify ($i);
 144   if ($str2 =~ /^-/) {
 145     $str2 =~ s/^-//;
 146     $str1 .= ' - ' . $str2;
 147   } else {
 148     $str1 .= ' + ' . $str2;
 149   }
 150   $str1 .= ' i';
 151   return $str1;
 152 }
 153
 154 # Return name of a variable
 155 sub get_variable {
 156   my ($number) = @_;
 157
 158   return "x" if ($number == 1);
 159   return "y" if ($number == 2);
 160   return "z" if ($number == 3);
 161   # return x1,x2,...
 162   $number =-3;
 163   return "x$number";
 164 }
 165
 166 # Add a new test to internal data structures and fill in the
 167 # ulps, failures and exception information for the C line.
 168 sub new_test {
 169   my ($test, $exception) = @_;
 170   my $rest;
 171
 172   # Add ulp, xfail
 173   if (exists $results{$test}{'has_ulps'}) {
 174     $rest = ", DELTA$count";
 175   } else {
 176     $rest = ', 0';
 177   }
 178   if (exists $results{$test}{'has_fails'}) {
 179     $rest .= ", FAIL$count";
 180   } else {
 181     $rest .= ', 0';
 182   }
 183   if (defined $exception) {
 184     $rest .= ", $exception";
 185   } else {
 186     $rest .= ', 0';
 187   }
 188   $rest .= ");\n";
 189   # We must increment here to keep @tests and count in sync
 190   push @tests, $test;
 191   ++$count;
 192   return $rest;
 193 }
 194
 195 # Treat some functions especially.
 196 # Currently only sincos needs extra treatment.
 197 sub special_functions {
 198   my ($file, $args) = @_;
 199   my (@args, $str, $test, $cline);
 200
 201   @args = split /,\s*/, $args;
 202
 203   unless ($args[0] =~ /sincos/) {
 204     die ("Don't know how to handle $args[0] extra.");
 205   }
 206   print $file "  FUNC (sincos) ($args[1], &sin_res, &cos_res);\n";
 207
 208   $str = 'sincos (' . &beautify ($args[1]) . ', &sin_res, &cos_res)';
 209   # handle sin
 210   $test = $str . ' puts ' . &beautify ($args[2]) . ' in sin_res';
 211
 212   $cline = "  check_float (\"$test\", sin_res, $args[2]";
 213   $cline .= &new_test ($test, $args[4]);
 214   print $file $cline;
 215
 216   # handle cos
 217   $test = $str . ' puts ' . &beautify ($args[3]) . ' in cos_res';
 218   $cline = "  check_float (\"$test\", cos_res, $args[3]";
 219   # only tests once for exception
 220   $cline .= &new_test ($test, undef);
 221   print $file $cline;
 222 }
 223
 224 # Parse the arguments to TEST_x_y
 225 sub parse_args {
 226   my ($file, $descr, $fct, $args) = @_;
 227   my (@args, $str, $descr_args, $descr_res, @descr);
 228   my ($current_arg, $cline, $i);
 229   my ($pre, $post, @special);
 230   my ($extra_var, $call, $c_call);
 231
 232   if ($descr eq 'extra') {
 233     &special_functions ($file, $args);
 234     return;
 235   }
 236   ($descr_args, $descr_res) = split /_/,$descr, 2;
 237
 238   @args = split /,\s*/, $args;
 239
 240   $call = "$fct (";
 241
 242   # Generate first the string that's shown to the user
 243   $current_arg = 1;
 244   $extra_var = 0;
 245   @descr = split //,$descr_args;
 246   for ($i = 0; $i <= $#descr; $i++) {
 247     if ($i >= 1) {
 248       $call .= ', ';
 249     }
 250     # FLOAT, int, long int, long long int
 251     if ($descr[$i] =~ /f|i|l|L/) {
 252       $call .= &beautify ($args[$current_arg]);
 253       ++$current_arg;
 254       next;
 255     }
 256     # &FLOAT, &int - argument is added here
 257     if ($descr[$i] =~ /F|I/) {
 258       ++$extra_var;
 259       $call .= '&' . &get_variable ($extra_var);
 260       next;
 261     }
 262     # complex
 263     if ($descr[$i] eq 'c') {
 264       $call .= &build_complex_beautify ($args[$current_arg], $args[$current_arg+1]);
 265       $current_arg += 2;
 266       next;
 267     }
 268
 269     die ("$descr[$i] is unknown");
 270   }
 271   $call .= ')';
 272   $str = "$call == ";
 273
 274   # Result
 275   @descr = split //,$descr_res;
 276   foreach (@descr) {
 277     if ($_ =~ /f|i|l|L/) {
 278       $str .= &beautify ($args[$current_arg]);
 279       ++$current_arg;
 280     } elsif ($_ eq 'c') {
 281       $str .= &build_complex_beautify ($args[$current_arg], $args[$current_arg+1]);
 282       $current_arg += 2;
 283     } elsif ($_ eq 'b') {
 284       # boolean
 285       $str .= ($args[$current_arg] == 0) ? "false" : "true";
 286       ++$current_arg;
 287     } elsif ($_ eq '1') {
 288       ++$current_arg;
 289     } else {
 290       die ("$_ is unknown");
 291     }
 292   }
 293   # consistency check
 294   if ($current_arg == $#args) {
 295     die ("wrong number of arguments")
 296       unless ($args[$current_arg] =~ /EXCEPTION|IGNORE_ZERO_INF_SIGN/);
 297   } elsif ($current_arg < $#args) {
 298     die ("wrong number of arguments");
 299   } elsif ($current_arg > ($#args+1)) {
 300     die ("wrong number of arguments");
 301   }
 302
 303
 304   # Put the C program line together
 305   # Reset some variables to start again
 306   $current_arg = 1;
 307   $extra_var = 0;
 308   if (substr($descr_res,0,1) eq 'f') {
 309     $cline = 'check_float'
 310   } elsif (substr($descr_res,0,1) eq 'b') {
 311     $cline = 'check_bool';
 312   } elsif (substr($descr_res,0,1) eq 'c') {
 313     $cline = 'check_complex';
 314   } elsif (substr($descr_res,0,1) eq 'i') {
 315     $cline = 'check_int';
 316   } elsif (substr($descr_res,0,1) eq 'l') {
 317     $cline = 'check_long';
 318   } elsif (substr($descr_res,0,1) eq 'L') {
 319     $cline = 'check_longlong';
 320   }
 321   # Special handling for some macros:
 322   $cline .= " (\"$str\", ";
 323   if ($args[0] =~ /fpclassify|isnormal|isfinite|isinf|isnan|signbit
 324       |isgreater|isgreaterequal|isless|islessequal
 325       |islessgreater|isunordered/x) {
 326     $c_call = "$args[0] (";
 327   } else {
 328     $c_call = " FUNC($args[0]) (";
 329   }
 330   @descr = split //,$descr_args;
 331   for ($i=0; $i <= $#descr; $i++) {
 332     if ($i >= 1) {
 333       $c_call .= ', ';
 334     }
 335     # FLOAT, int, long int, long long int
 336     if ($descr[$i] =~ /f|i|l|L/) {
 337       $c_call .= $args[$current_arg];
 338       $current_arg++;
 339       next;
 340     }
 341     # &FLOAT, &int
 342     if ($descr[$i] =~ /F|I/) {
 343       ++$extra_var;
 344       $c_call .= '&' . &get_variable ($extra_var);
 345       next;
 346     }
 347     # complex
 348     if ($descr[$i] eq 'c') {
 349       $c_call .= "BUILD_COMPLEX ($args[$current_arg], $args[$current_arg+1])";
 350       $current_arg += 2;
 351       next;
 352     }
 353   }
 354   $c_call .= ')';
 355   $cline .= "$c_call, ";
 356
 357   @descr = split //,$descr_res;
 358   foreach (@descr) {
 359     if ($_ =~ /b|f|i|l|L/ ) {
 360       $cline .= $args[$current_arg];
 361       $current_arg++;
 362     } elsif ($_ eq 'c') {
 363       $cline .= "BUILD_COMPLEX ($args[$current_arg], $args[$current_arg+1])";
 364       $current_arg += 2;
 365     } elsif ($_ eq '1') {
 366       push @special, $args[$current_arg];
 367       ++$current_arg;
 368     }
 369   }
 370   # Add ulp, xfail
 371   $cline .= &new_test ($str, ($current_arg <= $#args) ? $args[$current_arg] : undef);
 372
 373   # special treatment for some functions
 374   if ($args[0] eq 'frexp') {
 375     if (defined $special[0] && $special[0] ne "IGNORE") {
 376       my ($str) = "$call sets x to $special[0]";
 377       $post = "  check_int (\"$str\", x, $special[0]";
 378       $post .= &new_test ($str, undef);
 379     }
 380   } elsif ($args[0] eq 'gamma' || $args[0] eq 'lgamma') {
 381     $pre = "  signgam = 0;\n";
 382     if (defined $special[0] && $special[0] ne "IGNORE") {
 383       my ($str) = "$call sets signgam to $special[0]";
 384       $post = "  check_int (\"$str\", signgam, $special[0]";
 385       $post .= &new_test ($str, undef);
 386     }
 387   } elsif ($args[0] eq 'modf') {
 388     if (defined $special[0] && $special[0] ne "IGNORE") {
 389       my ($str) = "$call sets x to $special[0]";
 390       $post = "  check_float (\"$str\", x, $special[0]";
 391       $post .= &new_test ($str, undef);
 392     }
 393   } elsif ($args[0] eq 'remquo') {
 394     if (defined $special[0] && $special[0] ne "IGNORE") {
 395       my ($str) = "$call sets x to $special[0]";
 396       $post = "  check_int (\"$str\", x, $special[0]";
 397       $post .= &new_test ($str, undef);
 398     }
 399   }
 400
 401   print $file $pre if (defined $pre);
 402
 403   print $file "  $cline";
 404
 405   print $file $post if (defined $post);
 406 }
 407
 408 # Generate libm-test.c
 409 sub generate_testfile {
 410   my ($input, $output) = @_;
 411   my ($lasttext);
 412   my (@args, $i, $str, $thisfct);
 413
 414   open INPUT, $input or die ("Can't open $input: $!");
 415   open OUTPUT, ">$output" or die ("Can't open $output: $!");
 416
 417   # Replace the special macros
 418   while (<INPUT>) {
 419
 420     # TEST_...
 421     if (/^\s*TEST_/) {
 422       my ($descr, $args);
 423       chop;
 424       ($descr, $args) = ($_ =~ /TEST_(\w+)\s*\((.*)\)/);
 425       &parse_args (\*OUTPUT, $descr, $thisfct, $args);
 426       next;
 427     }
 428     # START (function)
 429     if (/START/) {
 430       ($thisfct) = ($_ =~ /START\s*\((.*)\)/);
 431       print OUTPUT "  init_max_error ();\n";
 432       next;
 433     }
 434     # END (function)
 435     if (/END/) {
 436       my ($fct, $line, $type);
 437       if (/complex/) {
 438         s/,\s*complex\s*//;
 439         $type = 'complex';
 440       } else {
 441         $type = 'normal';
 442       }
 443       ($fct) = ($_ =~ /END\s*\((.*)\)/);
 444       if ($type eq 'complex') {
 445         $line = "  print_complex_max_error (\"$fct\", ";
 446       } else {
 447         $line = "  print_max_error (\"$fct\", ";
 448       }
 449       if (exists $results{$fct}{'has_ulps'}) {
 450         $line .= "DELTA$fct";
 451       } else {
 452         $line .= '0';
 453       }
 454       if (exists $results{$fct}{'has_fails'}) {
 455         $line .= ", FAIL$fct";
 456       } else {
 457         $line .= ', 0';
 458       }
 459       $line .= ");\n";
 460       print OUTPUT $line;
 461       push @functions, $fct;
 462       next;
 463     }
 464     print OUTPUT;
 465   }
 466   close INPUT;
 467   close OUTPUT;
 468 }
 469
 470
 471
 472 # Parse ulps file
 473 sub parse_ulps {
 474   my ($file) = @_;
 475   my ($test, $type, $float, $eps, $kind);
 476
 477   # $type has the following values:
 478   # "normal": No complex variable
 479   # "real": Real part of complex result
 480   # "imag": Imaginary part of complex result
 481   open ULP, $file  or die ("Can't open $file: $!");
 482   while (<ULP>) {
 483     chop;
 484     # ignore comments and empty lines
 485     next if /^#/;
 486     next if /^\s*$/;
 487     if (/^Test/) {
 488       if (/Real part of:/) {
 489         s/Real part of: //;
 490         $type = 'real';
 491       } elsif (/Imaginary part of:/) {
 492         s/Imaginary part of: //;
 493         $type = 'imag';
 494       } else {
 495         $type = 'normal';
 496       }
 497       s/^.+\"(.*)\".*$/$1/;
 498       $test = $_;
 499       $kind = 'test';
 500       next;
 501     }
 502     if (/^Function: /) {
 503       if (/Real part of/) {
 504         s/Real part of //;
 505         $type = 'real';
 506       } elsif (/Imaginary part of/) {
 507         s/Imaginary part of //;
 508         $type = 'imag';
 509       } else {
 510         $type = 'normal';
 511       }
 512       ($test) = ($_ =~ /^Function:\s*\"([a-zA-Z0-9_]+)\"/);
 513       $kind = 'fct';
 514       next;
 515     }
 516     if (/^i?(float|double|ldouble):/) {
 517       ($float, $eps) = split /\s*:\s*/,$_,2;
 518
 519       if ($eps eq 'fail') {
 520         $results{$test}{$type}{'fail'}{$float} = 1;
 521         $results{$test}{'has_fails'} = 1;
 522       } elsif ($eps eq "0") {
 523         # ignore
 524         next;
 525       } else {
 526         $results{$test}{$type}{'ulp'}{$float} = $eps;
 527         $results{$test}{'has_ulps'} = 1;
 528       }
 529       if ($type =~ /^real|imag$/) {
 530         $results{$test}{'type'} = 'complex';
 531       } elsif ($type eq 'normal') {
 532         $results{$test}{'type'} = 'normal';
 533       }
 534       $results{$test}{'kind'} = $kind;
 535       next;
 536     }
 537     print "Skipping unknown entry: `$_'\n";
 538   }
 539   close ULP;
 540 }
 541
 542
 543 # Clean up a floating point number
 544 sub clean_up_number {
 545   my ($number) = @_;
 546
 547   # Remove trailing zeros after the decimal point
 548   if ($number =~ /\./) {
 549     $number =~ s/0+$//;
 550     $number =~ s/\.$//;
 551   }
 552   return $number;
 553 }
 554
 555 # Output a file which can be read in as ulps file.
 556 sub print_ulps_file {
 557   my ($file) = @_;
 558   my ($test, $type, $float, $eps, $fct, $last_fct);
 559
 560   $last_fct = '';
 561   open NEWULP, ">$file" or die ("Can't open $file: $!");
 562   print NEWULP "# Begin of automatic generation\n";
 563   # first the function calls
 564   foreach $test (sort keys %results) {
 565     next if ($results{$test}{'kind'} ne 'test');
 566     foreach $type ('real', 'imag', 'normal') {
 567       if (exists $results{$test}{$type}) {
 568         if (defined $results{$test}) {
 569           ($fct) = ($test =~ /^(\w+)\s/);
 570           if ($fct ne $last_fct) {
 571             $last_fct = $fct;
 572             print NEWULP "\n# $fct\n";
 573           }
 574         }
 575         if ($type eq 'normal') {
 576           print NEWULP "Test \"$test\":\n";
 577         } elsif ($type eq 'real') {
 578           print NEWULP "Test \"Real part of: $test\":\n";
 579         } elsif ($type eq 'imag') {
 580           print NEWULP "Test \"Imaginary part of: $test\":\n";
 581         }
 582         foreach $float (@all_floats) {
 583           if (exists $results{$test}{$type}{'ulp'}{$float}) {
 584             print NEWULP "$float: ",
 585             &clean_up_number ($results{$test}{$type}{'ulp'}{$float}),
 586             "\n";
 587           }
 588           if (exists $results{$test}{$type}{'fail'}{$float}) {
 589             print NEWULP "$float: fail\n";
 590           }
 591         }
 592       }
 593     }
 594   }
 595   print NEWULP "\n# Maximal error of functions:\n";
 596
 597   foreach $fct (sort keys %results) {
 598     next if ($results{$fct}{'kind'} ne 'fct');
 599     foreach $type ('real', 'imag', 'normal') {
 600       if (exists $results{$fct}{$type}) {
 601         if ($type eq 'normal') {
 602           print NEWULP "Function: \"$fct\":\n";
 603         } elsif ($type eq 'real') {
 604           print NEWULP "Function: Real part of \"$fct\":\n";
 605         } elsif ($type eq 'imag') {
 606           print NEWULP "Function: Imaginary part of \"$fct\":\n";
 607         }
 608         foreach $float (@all_floats) {
 609           if (exists $results{$fct}{$type}{'ulp'}{$float}) {
 610             print NEWULP "$float: ",
 611             &clean_up_number ($results{$fct}{$type}{'ulp'}{$float}),
 612             "\n";
 613           }
 614           if (exists $results{$fct}{$type}{'fail'}{$float}) {
 615             print NEWULP "$float: fail\n";
 616           }
 617         }
 618         print NEWULP "\n";
 619       }
 620     }
 621   }
 622   print NEWULP "# end of automatic generation\n";
 623   close NEWULP;
 624 }
 625
 626 sub get_ulps {
 627   my ($test, $type, $float) = @_;
 628
 629   if ($type eq 'complex') {
 630     my ($res);
 631     # Return 0 instead of BUILD_COMPLEX (0,0)
 632     if (!exists $results{$test}{'real'}{'ulp'}{$float} &&
 633         !exists $results{$test}{'imag'}{'ulp'}{$float}) {
 634       return "0";
 635     }
 636     $res = 'BUILD_COMPLEX (';
 637     $res .= (exists $results{$test}{'real'}{'ulp'}{$float}
 638              ? $results{$test}{'real'}{'ulp'}{$float} : "0");
 639     $res .= ', ';
 640     $res .= (exists $results{$test}{'imag'}{'ulp'}{$float}
 641              ? $results{$test}{'imag'}{'ulp'}{$float} : "0");
 642     $res .= ')';
 643     return $res;
 644   }
 645   return (exists $results{$test}{'normal'}{'ulp'}{$float}
 646           ? $results{$test}{'normal'}{'ulp'}{$float} : "0");
 647 }
 648
 649 sub get_failure {
 650   my ($test, $type, $float) = @_;
 651   if ($type eq 'complex') {
 652     # return x,y
 653     my ($res);
 654     # Return 0 instead of BUILD_COMPLEX_INT (0,0)
 655     if (!exists $results{$test}{'real'}{'ulp'}{$float} &&
 656         !exists $results{$test}{'imag'}{'ulp'}{$float}) {
 657       return "0";
 658     }
 659     $res = 'BUILD_COMPLEX_INT (';
 660     $res .= (exists $results{$test}{'real'}{'fail'}{$float}
 661              ? $results{$test}{'real'}{'fail'}{$float} : "0");
 662     $res .= ', ';
 663     $res .= (exists $results{$test}{'imag'}{'fail'}{$float}
 664              ? $results{$test}{'imag'}{'fail'}{$float} : "0");
 665     $res .= ')';
 666     return $res;
 667   }
 668   return (exists $results{$test}{'normal'}{'fail'}{$float}
 669           ? $results{$test}{'normal'}{'fail'}{$float} : "0");
 670
 671 }
 672
 673 # Output the defines for a single test
 674 sub output_test {
 675   my ($file, $test, $name) = @_;
 676   my ($ldouble, $double, $float, $ildouble, $idouble, $ifloat);
 677   my ($type);
 678
 679   # Do we have ulps/failures?
 680   if (!exists $results{$test}{'type'}) {
 681     return;
 682   }
 683   $type = $results{$test}{'type'};
 684   if (exists $results{$test}{'has_ulps'}) {
 685     # XXX use all_floats (change order!)
 686     $ldouble = &get_ulps ($test, $type, "ldouble");
 687     $double = &get_ulps ($test, $type, "double");
 688     $float = &get_ulps ($test, $type, "float");
 689     $ildouble = &get_ulps ($test, $type, "ildouble");
 690     $idouble = &get_ulps ($test, $type, "idouble");
 691     $ifloat = &get_ulps ($test, $type, "ifloat");
 692     print $file "#define DELTA$name CHOOSE($ldouble, $double, $float, $ildouble, $idouble, $ifloat)\t/* $test  */\n";
 693   }
 694
 695   if (exists $results{$test}{'has_fails'}) {
 696     $ldouble = &get_failure ($test, "ldouble");
 697     $double = &get_failure ($test, "double");
 698     $float = &get_failure ($test, "float");
 699     $ildouble = &get_failure ($test, "ildouble");
 700     $idouble = &get_failure ($test, "idouble");
 701     $ifloat = &get_failure ($test, "ifloat");
 702     print $file "#define FAIL$name CHOOSE($ldouble, $double, $float $ildouble, $idouble, $ifloat)\t/* $test  */\n";
 703   }
 704 }
 705
 706 # Print include file
 707 sub output_ulps {
 708   my ($file, $ulps_filename) = @_;
 709   my ($i, $fct);
 710
 711   open ULP, ">$file" or die ("Can't open $file: $!");
 712
 713   print ULP "/* This file is automatically generated\n";
 714   print ULP "   from $ulps_filename with gen-libm-test.pl.\n";
 715   print ULP "   Don't change it - change instead the master files.  */\n\n";
 716
 717   print ULP "\n/* Maximal error of functions.  */\n";
 718   foreach $fct (@functions) {
 719     output_test (\*ULP, $fct, $fct);
 720   }
 721
 722   print ULP "\n/* Error of single function calls.  */\n";
 723   for ($i = 0; $i < $count; $i++) {
 724     output_test (\*ULP, $tests[$i], $i);
 725   }
 726   close ULP;
 727 }