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 $ulps_file);
  51
  52 # all_floats is sorted and contains all recognised float types
  53 @all_floats = ('double', 'float', 'idouble',
  54                'ifloat', 'ildouble', 'ldouble');
  55
  56 %beautify =
  57   ( "minus_zero" => "-0",
  58     "plus_zero" => "+0",
  59     "minus_infty" => "-inf",
  60     "plus_infty" => "inf",
  61     "qnan_value" => "qNaN",
  62     "M_El" => "e",
  63     "M_E2l" => "e^2",
  64     "M_E3l" => "e^3",
  65     "M_LOG10El", "log10(e)",
  66     "M_PIl" => "pi",
  67     "M_PI_34l" => "3/4 pi",
  68     "M_PI_2l" => "pi/2",
  69     "M_PI_4l" => "pi/4",
  70     "M_PI_6l" => "pi/6",
  71     "M_PI_34_LOG10El" => "3/4 pi*log10(e)",
  72     "M_PI_LOG10El" => "pi*log10(e)",
  73     "M_PI2_LOG10El" => "pi/2*log10(e)",
  74     "M_PI4_LOG10El" => "pi/4*log10(e)",
  75     "M_LOG_SQRT_PIl" => "log(sqrt(pi))",
  76     "M_LOG_2_SQRT_PIl" => "log(2*sqrt(pi))",
  77     "M_2_SQRT_PIl" => "2 sqrt (pi)",
  78     "M_SQRT_PIl" => "sqrt (pi)",
  79   );
  80
  81
  82 # get Options
  83 # Options:
  84 # u: ulps-file
  85 # h: help
  86 # o: output-directory
  87 # n: generate new ulps file
  88 use vars qw($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 "  {\n";
 207   print $file "    FUNC (sincos) ($args[1], &sin_res, &cos_res);\n";
 208
 209   $str = 'sincos (' . &beautify ($args[1]) . ', &sin_res, &cos_res)';
 210   # handle sin
 211   $test = $str . ' puts ' . &beautify ($args[2]) . ' in sin_res';
 212
 213   $cline = "    check_float (\"$test\", sin_res, $args[2]";
 214   $cline .= &new_test ($test, $args[4]);
 215   print $file $cline;
 216
 217   # handle cos
 218   $test = $str . ' puts ' . &beautify ($args[3]) . ' in cos_res';
 219   $cline = "    check_float (\"$test\", cos_res, $args[3]";
 220   # only tests once for exception
 221   $cline .= &new_test ($test, undef);
 222   print $file $cline;
 223   print $file "  }\n";
 224 }
 225
 226 # Parse the arguments to TEST_x_y
 227 sub parse_args {
 228   my ($file, $descr, $fct, $args) = @_;
 229   my (@args, $str, $descr_args, $descr_res, @descr);
 230   my ($current_arg, $cline, $i);
 231   my ($pre, $post, @special);
 232   my ($extra_var, $call, $c_call);
 233
 234   if ($descr eq 'extra') {
 235     &special_functions ($file, $args);
 236     return;
 237   }
 238   ($descr_args, $descr_res) = split /_/,$descr, 2;
 239
 240   @args = split /,\s*/, $args;
 241
 242   $call = "$fct (";
 243
 244   # Generate first the string that's shown to the user
 245   $current_arg = 1;
 246   $extra_var = 0;
 247   @descr = split //,$descr_args;
 248   for ($i = 0; $i <= $#descr; $i++) {
 249     if ($i >= 1) {
 250       $call .= ', ';
 251     }
 252     # FLOAT, int, long int, long long int
 253     if ($descr[$i] =~ /f|i|l|L/) {
 254       $call .= &beautify ($args[$current_arg]);
 255       ++$current_arg;
 256       next;
 257     }
 258     # &FLOAT, &int - argument is added here
 259     if ($descr[$i] =~ /F|I/) {
 260       ++$extra_var;
 261       $call .= '&' . &get_variable ($extra_var);
 262       next;
 263     }
 264     # complex
 265     if ($descr[$i] eq 'c') {
 266       $call .= &build_complex_beautify ($args[$current_arg], $args[$current_arg+1]);
 267       $current_arg += 2;
 268       next;
 269     }
 270
 271     die ("$descr[$i] is unknown");
 272   }
 273   $call .= ')';
 274   $str = "$call == ";
 275
 276   # Result
 277   @descr = split //,$descr_res;
 278   foreach (@descr) {
 279     if ($_ =~ /f|i|l|L/) {
 280       $str .= &beautify ($args[$current_arg]);
 281       ++$current_arg;
 282     } elsif ($_ eq 'c') {
 283       $str .= &build_complex_beautify ($args[$current_arg], $args[$current_arg+1]);
 284       $current_arg += 2;
 285     } elsif ($_ eq 'b') {
 286       # boolean
 287       $str .= ($args[$current_arg] == 0) ? "false" : "true";
 288       ++$current_arg;
 289     } elsif ($_ eq '1') {
 290       ++$current_arg;
 291     } else {
 292       die ("$_ is unknown");
 293     }
 294   }
 295   # consistency check
 296   if ($current_arg == $#args) {
 297     die ("wrong number of arguments")
 298       unless ($args[$current_arg] =~ /EXCEPTION|IGNORE_ZERO_INF_SIGN/);
 299   } elsif ($current_arg < $#args) {
 300     die ("wrong number of arguments");
 301   } elsif ($current_arg > ($#args+1)) {
 302     die ("wrong number of arguments");
 303   }
 304
 305
 306   # Put the C program line together
 307   # Reset some variables to start again
 308   $current_arg = 1;
 309   $extra_var = 0;
 310   if (substr($descr_res,0,1) eq 'f') {
 311     $cline = 'check_float'
 312   } elsif (substr($descr_res,0,1) eq 'b') {
 313     $cline = 'check_bool';
 314   } elsif (substr($descr_res,0,1) eq 'c') {
 315     $cline = 'check_complex';
 316   } elsif (substr($descr_res,0,1) eq 'i') {
 317     $cline = 'check_int';
 318   } elsif (substr($descr_res,0,1) eq 'l') {
 319     $cline = 'check_long';
 320   } elsif (substr($descr_res,0,1) eq 'L') {
 321     $cline = 'check_longlong';
 322   }
 323   # Special handling for some macros:
 324   $cline .= " (\"$str\", ";
 325   if ($args[0] =~ /fpclassify|isnormal|isfinite|isinf|isnan|issignaling|signbit
 326       |isgreater|isgreaterequal|isless|islessequal
 327       |islessgreater|isunordered/x) {
 328     $c_call = "$args[0] (";
 329   } else {
 330     $c_call = " FUNC($args[0]) (";
 331   }
 332   @descr = split //,$descr_args;
 333   for ($i=0; $i <= $#descr; $i++) {
 334     if ($i >= 1) {
 335       $c_call .= ', ';
 336     }
 337     # FLOAT, int, long int, long long int
 338     if ($descr[$i] =~ /f|i|l|L/) {
 339       $c_call .= $args[$current_arg];
 340       $current_arg++;
 341       next;
 342     }
 343     # &FLOAT, &int
 344     if ($descr[$i] =~ /F|I/) {
 345       ++$extra_var;
 346       $c_call .= '&' . &get_variable ($extra_var);
 347       next;
 348     }
 349     # complex
 350     if ($descr[$i] eq 'c') {
 351       $c_call .= "BUILD_COMPLEX ($args[$current_arg], $args[$current_arg+1])";
 352       $current_arg += 2;
 353       next;
 354     }
 355   }
 356   $c_call .= ')';
 357   $cline .= "$c_call, ";
 358
 359   @descr = split //,$descr_res;
 360   foreach (@descr) {
 361     if ($_ =~ /b|f|i|l|L/ ) {
 362       $cline .= $args[$current_arg];
 363       $current_arg++;
 364     } elsif ($_ eq 'c') {
 365       $cline .= "BUILD_COMPLEX ($args[$current_arg], $args[$current_arg+1])";
 366       $current_arg += 2;
 367     } elsif ($_ eq '1') {
 368       push @special, $args[$current_arg];
 369       ++$current_arg;
 370     }
 371   }
 372   # Add ulp, xfail
 373   $cline .= &new_test ($str, ($current_arg <= $#args) ? $args[$current_arg] : undef);
 374
 375   # special treatment for some functions
 376   if ($args[0] eq 'frexp') {
 377     if (defined $special[0] && $special[0] ne "IGNORE") {
 378       my ($str) = "$call sets x to $special[0]";
 379       $post = "  check_int (\"$str\", x, $special[0]";
 380       $post .= &new_test ($str, undef);
 381     }
 382   } elsif ($args[0] eq 'gamma' || $args[0] eq 'lgamma') {
 383     $pre = "  signgam = 0;\n";
 384     if (defined $special[0] && $special[0] ne "IGNORE") {
 385       my ($str) = "$call sets signgam to $special[0]";
 386       $post = "  check_int (\"$str\", signgam, $special[0]";
 387       $post .= &new_test ($str, undef);
 388     }
 389   } elsif ($args[0] eq 'modf') {
 390     if (defined $special[0] && $special[0] ne "IGNORE") {
 391       my ($str) = "$call sets x to $special[0]";
 392       $post = "  check_float (\"$str\", x, $special[0]";
 393       $post .= &new_test ($str, undef);
 394     }
 395   } elsif ($args[0] eq 'remquo') {
 396     if (defined $special[0] && $special[0] ne "IGNORE") {
 397       my ($str) = "$call sets x to $special[0]";
 398       $post = "  check_int (\"$str\", x, $special[0]";
 399       $post .= &new_test ($str, undef);
 400     }
 401   }
 402
 403   if (defined $pre or defined $post) {
 404     print $file "  {\n";
 405     print $file "  $pre" if (defined $pre);
 406     print $file "    $cline";
 407     print $file "  $post" if (defined $post);
 408     print $file "  }\n";
 409   } else {
 410     print $file "  $cline";
 411   }
 412 }
 413
 414 # Generate libm-test.c
 415 sub generate_testfile {
 416   my ($input, $output) = @_;
 417   my ($lasttext);
 418   my (@args, $i, $str, $thisfct);
 419
 420   open INPUT, $input or die ("Can't open $input: $!");
 421   open OUTPUT, ">$output" or die ("Can't open $output: $!");
 422
 423   # Replace the special macros
 424   while (<INPUT>) {
 425
 426     # TEST_...
 427     if (/^\s*TEST_/) {
 428       my ($descr, $args);
 429       chop;
 430       ($descr, $args) = ($_ =~ /TEST_(\w+)\s*\((.*)\)/);
 431       &parse_args (\*OUTPUT, $descr, $thisfct, $args);
 432       next;
 433     }
 434     # START (function)
 435     if (/START/) {
 436       ($thisfct) = ($_ =~ /START\s*\((.*)\)/);
 437       print OUTPUT "  init_max_error ();\n";
 438       next;
 439     }
 440     # END (function)
 441     if (/END/) {
 442       my ($fct, $line, $type);
 443       if (/complex/) {
 444         s/,\s*complex\s*//;
 445         $type = 'complex';
 446       } else {
 447         $type = 'normal';
 448       }
 449       ($fct) = ($_ =~ /END\s*\((.*)\)/);
 450       if ($type eq 'complex') {
 451         $line = "  print_complex_max_error (\"$fct\", ";
 452       } else {
 453         $line = "  print_max_error (\"$fct\", ";
 454       }
 455       if (exists $results{$fct}{'has_ulps'}) {
 456         $line .= "DELTA$fct";
 457       } else {
 458         $line .= '0';
 459       }
 460       if (exists $results{$fct}{'has_fails'}) {
 461         $line .= ", FAIL$fct";
 462       } else {
 463         $line .= ', 0';
 464       }
 465       $line .= ");\n";
 466       print OUTPUT $line;
 467       push @functions, $fct;
 468       next;
 469     }
 470     print OUTPUT;
 471   }
 472   close INPUT;
 473   close OUTPUT;
 474 }
 475
 476
 477
 478 # Parse ulps file
 479 sub parse_ulps {
 480   my ($file) = @_;
 481   my ($test, $type, $float, $eps, $kind);
 482
 483   # $type has the following values:
 484   # "normal": No complex variable
 485   # "real": Real part of complex result
 486   # "imag": Imaginary part of complex result
 487   open ULP, $file  or die ("Can't open $file: $!");
 488   while (<ULP>) {
 489     chop;
 490     # ignore comments and empty lines
 491     next if /^#/;
 492     next if /^\s*$/;
 493     if (/^Test/) {
 494       if (/Real part of:/) {
 495         s/Real part of: //;
 496         $type = 'real';
 497       } elsif (/Imaginary part of:/) {
 498         s/Imaginary part of: //;
 499         $type = 'imag';
 500       } else {
 501         $type = 'normal';
 502       }
 503       s/^.+\"(.*)\".*$/$1/;
 504       $test = $_;
 505       $kind = 'test';
 506       next;
 507     }
 508     if (/^Function: /) {
 509       if (/Real part of/) {
 510         s/Real part of //;
 511         $type = 'real';
 512       } elsif (/Imaginary part of/) {
 513         s/Imaginary part of //;
 514         $type = 'imag';
 515       } else {
 516         $type = 'normal';
 517       }
 518       ($test) = ($_ =~ /^Function:\s*\"([a-zA-Z0-9_]+)\"/);
 519       $kind = 'fct';
 520       next;
 521     }
 522     if (/^i?(float|double|ldouble):/) {
 523       ($float, $eps) = split /\s*:\s*/,$_,2;
 524
 525       if ($eps eq 'fail') {
 526         $results{$test}{$type}{'fail'}{$float} = 1;
 527         $results{$test}{'has_fails'} = 1;
 528       } elsif ($eps eq "0") {
 529         # ignore
 530         next;
 531       } else {
 532         $results{$test}{$type}{'ulp'}{$float} = $eps;
 533         $results{$test}{'has_ulps'} = 1;
 534       }
 535       if ($type =~ /^real|imag$/) {
 536         $results{$test}{'type'} = 'complex';
 537       } elsif ($type eq 'normal') {
 538         $results{$test}{'type'} = 'normal';
 539       }
 540       $results{$test}{'kind'} = $kind;
 541       next;
 542     }
 543     print "Skipping unknown entry: `$_'\n";
 544   }
 545   close ULP;
 546 }
 547
 548
 549 # Clean up a floating point number
 550 sub clean_up_number {
 551   my ($number) = @_;
 552
 553   # Remove trailing zeros after the decimal point
 554   if ($number =~ /\./) {
 555     $number =~ s/0+$//;
 556     $number =~ s/\.$//;
 557   }
 558   return $number;
 559 }
 560
 561 # Output a file which can be read in as ulps file.
 562 sub print_ulps_file {
 563   my ($file) = @_;
 564   my ($test, $type, $float, $eps, $fct, $last_fct);
 565
 566   $last_fct = '';
 567   open NEWULP, ">$file" or die ("Can't open $file: $!");
 568   print NEWULP "# Begin of automatic generation\n";
 569   # first the function calls
 570   foreach $test (sort keys %results) {
 571     next if ($results{$test}{'kind'} ne 'test');
 572     foreach $type ('real', 'imag', 'normal') {
 573       if (exists $results{$test}{$type}) {
 574         if (defined $results{$test}) {
 575           ($fct) = ($test =~ /^(\w+)\s/);
 576           if ($fct ne $last_fct) {
 577             $last_fct = $fct;
 578             print NEWULP "\n# $fct\n";
 579           }
 580         }
 581         if ($type eq 'normal') {
 582           print NEWULP "Test \"$test\":\n";
 583         } elsif ($type eq 'real') {
 584           print NEWULP "Test \"Real part of: $test\":\n";
 585         } elsif ($type eq 'imag') {
 586           print NEWULP "Test \"Imaginary part of: $test\":\n";
 587         }
 588         foreach $float (@all_floats) {
 589           if (exists $results{$test}{$type}{'ulp'}{$float}) {
 590             print NEWULP "$float: ",
 591             &clean_up_number ($results{$test}{$type}{'ulp'}{$float}),
 592             "\n";
 593           }
 594           if (exists $results{$test}{$type}{'fail'}{$float}) {
 595             print NEWULP "$float: fail\n";
 596           }
 597         }
 598       }
 599     }
 600   }
 601   print NEWULP "\n# Maximal error of functions:\n";
 602
 603   foreach $fct (sort keys %results) {
 604     next if ($results{$fct}{'kind'} ne 'fct');
 605     foreach $type ('real', 'imag', 'normal') {
 606       if (exists $results{$fct}{$type}) {
 607         if ($type eq 'normal') {
 608           print NEWULP "Function: \"$fct\":\n";
 609         } elsif ($type eq 'real') {
 610           print NEWULP "Function: Real part of \"$fct\":\n";
 611         } elsif ($type eq 'imag') {
 612           print NEWULP "Function: Imaginary part of \"$fct\":\n";
 613         }
 614         foreach $float (@all_floats) {
 615           if (exists $results{$fct}{$type}{'ulp'}{$float}) {
 616             print NEWULP "$float: ",
 617             &clean_up_number ($results{$fct}{$type}{'ulp'}{$float}),
 618             "\n";
 619           }
 620           if (exists $results{$fct}{$type}{'fail'}{$float}) {
 621             print NEWULP "$float: fail\n";
 622           }
 623         }
 624         print NEWULP "\n";
 625       }
 626     }
 627   }
 628   print NEWULP "# end of automatic generation\n";
 629   close NEWULP;
 630 }
 631
 632 sub get_ulps {
 633   my ($test, $type, $float) = @_;
 634
 635   if ($type eq 'complex') {
 636     my ($res);
 637     # Return 0 instead of BUILD_COMPLEX (0,0)
 638     if (!exists $results{$test}{'real'}{'ulp'}{$float} &&
 639         !exists $results{$test}{'imag'}{'ulp'}{$float}) {
 640       return "0";
 641     }
 642     $res = 'BUILD_COMPLEX (';
 643     $res .= (exists $results{$test}{'real'}{'ulp'}{$float}
 644              ? $results{$test}{'real'}{'ulp'}{$float} : "0");
 645     $res .= ', ';
 646     $res .= (exists $results{$test}{'imag'}{'ulp'}{$float}
 647              ? $results{$test}{'imag'}{'ulp'}{$float} : "0");
 648     $res .= ')';
 649     return $res;
 650   }
 651   return (exists $results{$test}{'normal'}{'ulp'}{$float}
 652           ? $results{$test}{'normal'}{'ulp'}{$float} : "0");
 653 }
 654
 655 sub get_failure {
 656   my ($test, $type, $float) = @_;
 657   if ($type eq 'complex') {
 658     # return x,y
 659     my ($res);
 660     # Return 0 instead of BUILD_COMPLEX_INT (0,0)
 661     if (!exists $results{$test}{'real'}{'ulp'}{$float} &&
 662         !exists $results{$test}{'imag'}{'ulp'}{$float}) {
 663       return "0";
 664     }
 665     $res = 'BUILD_COMPLEX_INT (';
 666     $res .= (exists $results{$test}{'real'}{'fail'}{$float}
 667              ? $results{$test}{'real'}{'fail'}{$float} : "0");
 668     $res .= ', ';
 669     $res .= (exists $results{$test}{'imag'}{'fail'}{$float}
 670              ? $results{$test}{'imag'}{'fail'}{$float} : "0");
 671     $res .= ')';
 672     return $res;
 673   }
 674   return (exists $results{$test}{'normal'}{'fail'}{$float}
 675           ? $results{$test}{'normal'}{'fail'}{$float} : "0");
 676
 677 }
 678
 679 # Output the defines for a single test
 680 sub output_test {
 681   my ($file, $test, $name) = @_;
 682   my ($ldouble, $double, $float, $ildouble, $idouble, $ifloat);
 683   my ($type);
 684
 685   # Do we have ulps/failures?
 686   if (!exists $results{$test}{'type'}) {
 687     return;
 688   }
 689   $type = $results{$test}{'type'};
 690   if (exists $results{$test}{'has_ulps'}) {
 691     # XXX use all_floats (change order!)
 692     $ldouble = &get_ulps ($test, $type, "ldouble");
 693     $double = &get_ulps ($test, $type, "double");
 694     $float = &get_ulps ($test, $type, "float");
 695     $ildouble = &get_ulps ($test, $type, "ildouble");
 696     $idouble = &get_ulps ($test, $type, "idouble");
 697     $ifloat = &get_ulps ($test, $type, "ifloat");
 698     print $file "#define DELTA$name CHOOSE($ldouble, $double, $float, $ildouble, $idouble, $ifloat)\t/* $test  */\n";
 699   }
 700
 701   if (exists $results{$test}{'has_fails'}) {
 702     $ldouble = &get_failure ($test, "ldouble");
 703     $double = &get_failure ($test, "double");
 704     $float = &get_failure ($test, "float");
 705     $ildouble = &get_failure ($test, "ildouble");
 706     $idouble = &get_failure ($test, "idouble");
 707     $ifloat = &get_failure ($test, "ifloat");
 708     print $file "#define FAIL$name CHOOSE($ldouble, $double, $float $ildouble, $idouble, $ifloat)\t/* $test  */\n";
 709   }
 710 }
 711
 712 # Print include file
 713 sub output_ulps {
 714   my ($file, $ulps_filename) = @_;
 715   my ($i, $fct);
 716
 717   open ULP, ">$file" or die ("Can't open $file: $!");
 718
 719   print ULP "/* This file is automatically generated\n";
 720   print ULP "   from $ulps_filename with gen-libm-test.pl.\n";
 721   print ULP "   Don't change it - change instead the master files.  */\n\n";
 722
 723   print ULP "\n/* Maximal error of functions.  */\n";
 724   foreach $fct (@functions) {
 725     output_test (\*ULP, $fct, $fct);
 726   }
 727
 728   print ULP "\n/* Error of single function calls.  */\n";
 729   for ($i = 0; $i < $count; $i++) {
 730     output_test (\*ULP, $tests[$i], $i);
 731   }
 732   close ULP;
 733 }