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+#!/usr/bin/perl -w
+# Copyright (C) 1999-2017 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+# Contributed by Andreas Jaeger <aj@suse.de>, 1999.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <http://www.gnu.org/licenses/>.
+
+# Information about tests are stored in: %results
+# $results{$test}{"type"} is the result type, e.g. normal or complex.
+# In the following description $platform, $type and $float are:
+# - $platform is the used platform
+# - $type is either "normal", "real" (for the real part of a complex number)
+# or "imag" (for the imaginary part # of a complex number).
+# - $float is either of float, ifloat, double, idouble, ldouble, ildouble;
+# It represents the underlying floating point type (float, double or long
+# double) and if inline functions (the leading i stands for inline)
+# are used.
+# $results{$test}{$platform}{$type}{$float} is defined and has a delta
+# or 'fail' as value.
+
+use File::Find;
+
+use strict;
+
+use vars qw ($sources @platforms %pplatforms);
+use vars qw (%results @all_floats %suffices %all_functions);
+
+
+# all_floats is in output order and contains all recognised float types that
+# we're going to output
+@all_floats = ('float', 'double', 'ldouble');
+%suffices =
+ ( 'float' => 'f',
+ 'double' => '',
+ 'ldouble' => 'l'
+ );
+
+# Pretty description of platform
+%pplatforms = ();
+
+%all_functions = ();
+
+if ($#ARGV == 0) {
+ $sources = $ARGV[0];
+} else {
+ $sources = '/usr/src/cvs/libc';
+}
+
+find (\&find_files, $sources);
+
+@platforms = sort by_platforms @platforms;
+
+&print_all;
+
+sub find_files {
+ if ($_ eq 'libm-test-ulps') {
+ # print "Parsing $File::Find::name\n";
+ push @platforms, $File::Find::dir;
+ my ($file, $name);
+ $file = "${File::Find::name}-name";
+ open NAME, $file or die ("Can't open $file: $!");
+ $name = <NAME>;
+ chomp $name;
+ close NAME;
+ $pplatforms{$File::Find::dir} = $name;
+ &parse_ulps ($File::Find::name, $File::Find::dir);
+ }
+}
+
+# Parse ulps file
+sub parse_ulps {
+ my ($file, $platform) = @_;
+ my ($test, $type, $float, $eps, $ignore_fn);
+
+ # $type has the following values:
+ # "normal": No complex variable
+ # "real": Real part of complex result
+ # "imag": Imaginary part of complex result
+ open ULP, $file or die ("Can't open $file: $!");
+ while (<ULP>) {
+ chop;
+ # ignore comments and empty lines
+ next if /^#/;
+ next if /^\s*$/;
+ if (/^Function: /) {
+ if (/Real part of/) {
+ s/Real part of //;
+ $type = 'real';
+ } elsif (/Imaginary part of/) {
+ s/Imaginary part of //;
+ $type = 'imag';
+ } else {
+ $type = 'normal';
+ }
+ ($test) = ($_ =~ /^Function:\s*\"([a-zA-Z0-9_]+)\"/);
+ next;
+ }
+ if ($test =~ /_(downward|towardzero|upward|vlen)/) {
+ $ignore_fn = 1;
+ } else {
+ $ignore_fn = 0;
+ $all_functions{$test} = 1;
+ }
+ if (/^i?(float|double|ldouble):/) {
+ ($float, $eps) = split /\s*:\s*/,$_,2;
+ if ($ignore_fn) {
+ next;
+ } elsif ($eps eq 'fail') {
+ $results{$test}{$platform}{$type}{$float} = 'fail';
+ } elsif ($eps eq "0") {
+ # ignore
+ next;
+ } elsif (!exists $results{$test}{$platform}{$type}{$float}
+ || $results{$test}{$platform}{$type}{$float} ne 'fail') {
+ $results{$test}{$platform}{$type}{$float} = $eps;
+ }
+ if ($type =~ /^real|imag$/) {
+ $results{$test}{'type'} = 'complex';
+ } elsif ($type eq 'normal') {
+ $results{$test}{'type'} = 'normal';
+ }
+ next;
+ }
+ print "Skipping unknown entry: `$_'\n";
+ }
+ close ULP;
+}
+
+sub get_value {
+ my ($fct, $platform, $type, $float) = @_;
+
+ return (exists $results{$fct}{$platform}{$type}{$float}
+ ? $results{$fct}{$platform}{$type}{$float} : "0");
+}
+
+sub print_platforms {
+ my (@p) = @_;
+ my ($fct, $platform, $float, $first, $i, $platform_no, $platform_total);
+
+ print '@multitable {nexttowardf} ';
+ foreach (@p) {
+ print ' {1000 + i 1000}';
+ }
+ print "\n";
+
+ print '@item Function ';
+ foreach (@p) {
+ print ' @tab ';
+ print $pplatforms{$_};
+ }
+ print "\n";
+
+
+ foreach $fct (sort keys %all_functions) {
+ foreach $float (@all_floats) {
+ print "\@item $fct$suffices{$float} ";
+ foreach $platform (@p) {
+ print ' @tab ';
+ if (exists $results{$fct}{$platform}{'normal'}{$float}
+ || exists $results{$fct}{$platform}{'real'}{$float}
+ || exists $results{$fct}{$platform}{'imag'}{$float}) {
+ if ($results{$fct}{'type'} eq 'complex') {
+ print &get_value ($fct, $platform, 'real', $float),
+ ' + i ', &get_value ($fct, $platform, 'imag', $float);
+ } else {
+ print $results{$fct}{$platform}{'normal'}{$float};
+ }
+ } else {
+ print '-';
+ }
+ }
+ print "\n";
+ }
+ }
+
+ print "\@end multitable\n";
+}
+
+sub print_all {
+ my ($i, $max);
+
+ my ($columns) = 5;
+
+ # Print only 5 platforms at a time.
+ for ($i=0; $i < $#platforms; $i+=$columns) {
+ $max = $i+$columns-1 > $#platforms ? $#platforms : $i+$columns-1;
+ print_platforms (@platforms[$i .. $max]);
+ }
+}
+
+sub by_platforms {
+ return $pplatforms{$a} cmp $pplatforms{$b};
+}