contrib/compareSumTests3

   1 #!/usr/bin/perl
   2
   3 # Three-way DejaGNU comparison; uses dglib.pm.  Run perldoc on this file for
   4 # usage.
   5 #
   6 # Author: Matthew Sachs <msachs@apple.com>
   7 #
   8 # Copyright (c) 2006 Free Software Foundation.
   9 #
  10 # This file is part of GCC.
  11 #
  12 # GCC is free software; you can redistribute it and/or modify
  13 # it under the terms of the GNU General Public License as published by
  14 # the Free Software Foundation; either version 3, or (at your option)
  15 # any later version.
  16 #
  17 # GCC is distributed in the hope that it will be useful,
  18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 # GNU General Public License for more details.
  21 #
  22 # You should have received a copy of the GNU General Public License
  23 # along with GCC; see the file COPYING.  If not, write to
  24 # the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  25 # Boston, MA 02110-1301, USA.
  26
  27 =pod
  28
  29 =head1 SYNOPSIS
  30
  31 compareSumTests3 -- Two-way or three-way compare between DejaGNU .sum files
  32
  33 =head1 USAGE
  34
  35         compareSumTests3 old1.sum [old2.sum] new.sum
  36         compareSumTests3 -i 1:2 -x 2:3 old1.sum old2.sum new.sum
  37
  38 =head1 DESCRIPTION
  39
  40 Gives results in terms of 'new' (e.g. things that work in 'new' and don't in
  41 other compilers are improvements, things that don't in 'new' and do in others
  42 are regressions, and it tells you which of the two old compilers (or both)
  43 the test is a regression from.
  44
  45 We treat any DG result other than PASS or XFAIL as a failure, e.g.
  46 UNRESOLVED, UNTESTED or test was not run.
  47
  48 We merge some tests into 'logical tests' with multiple subphases.
  49 For instance, some tests will have compile, execute, and link
  50 subtests.  For these tests, if one of the phases fails, we
  51 indicate which phase the failure originates in.  For instance,
  52 in the following test results:
  53
  54         gcc.c-torture/compile_execute/xxxx.c: [FAIL:C,FAIL:X,PASS]
  55
  56 the "compile_execute" replaces the compile or execute portion of the test name,
  57 and "FAIL:C" and "FAIL:X" indicates where the combined test failed.
  58
  59 =head1 OPTIONS
  60
  61 =head2 OVERVIEW
  62
  63 =over 4
  64
  65 =item *
  66
  67 C<-i X:Y>: Only display differences between the two indicated runs.
  68
  69 =item *
  70
  71 C<-p>: Give plain output, suitable for piping to another program.
  72
  73 =item *
  74
  75 C<-x X:Y>: Exclude differences between the two indicated runs.
  76
  77 =back
  78
  79 =head2 PLAIN OUTPUT FORMAT
  80
  81 In the plain
  82 output format, the category headers are not displayed and there are no tabs
  83 in front of each result line.  Instead, each result line has two characters
  84 followed by a space in front of it.  The first character will be either an 'I'
  85 for improvement or 'R' for regression; the second character will be a 1, 2, or 3,
  86 indicating which run was the odd one out.
  87
  88 =head2 SELECTING CHANGE SUBSETS
  89
  90 The following options cause only a selected subset of changes to be displayed.
  91 These options ask for a "run", a number which is used to select
  92 one of the three runs (C<old1>, C<old2>, or C<new>.)  C<1> and C<2> signify C<old1> and C<old2>
  93 respectively; 3 signifies C<new>. If multiple options are given, the changes displayed
  94 will be those which obey all of the given restrictions.
  95
  96 Typical usage of these options is to express something like "give me all changes
  97 between 2 and 3, except for those where there was the same difference betwen 1 and 2
  98 (as between 2 and 3.)"  This would be given as:
  99
 100         -i 2:3 -x 1:2
 101
 102 =over 4
 103
 104 =item *
 105
 106 C<-i X:Y>: Only differences which are present between the two runs given
 107 are displayed. For instance, if C<-i 1:2> is given and test A passes in
 108 runs 1 and 2 but fails in run 3, that result will not be displayed.
 109
 110 =item *
 111
 112 C<-x X:Y>: Differences which are identical to a difference between the two runs
 113 given will B<not> be displayed. For instance, if C<-x 1:2> is given and
 114 test A passes in run 1 and fails in runs 2 and 3, that result will not be
 115 displayed (since C<-x> will cause the difference between 1 and 2 to be ignored,
 116 and the difference in 1 and 3 parallels the difference between 1 and 2.)
 117 This option may only be used in conjunction with C<-i>.
 118
 119 =back
 120
 121 =cut
 122
 123 use strict;
 124 use warnings;
 125 use Getopt::Long;
 126
 127 use FindBin qw($Bin);
 128 use lib "$Bin";
 129 use dglib;
 130
 131 my %options;
 132 my $error = undef;
 133
 134 if(!GetOptions(
 135         "p" => \$options{p},
 136         "i=s" => \$options{i},
 137         "x=s" => \$options{x},
 138 )) {
 139         $error = "";
 140 } elsif(@ARGV != 2 and @ARGV != 3) {
 141         $error = "";
 142 } elsif($options{x} and !$options{i}) {
 143         $error = "-x may only be given in conjunction with -i.";
 144 } else {
 145         foreach my $opt("i", "x") {
 146                 if($options{$opt} and
 147                   ($options{$opt} !~ /^([123]):([123])$/ or
 148                    $1 == $2)
 149                 ) {
 150                         $error = "Invalid -$opt argument.";
 151                 }
 152         }
 153 }
 154
 155 if(defined($error)) {
 156         print STDERR "$error\n" if $error;
 157         print STDERR "Usage: compareSumTests3 [-p] [-i X:Y [-x X:Y]] old1.sum old2.sum new.sum\n";
 158         print STDERR "Try 'perldoc $0' for further information.\n";
 159         exit 1;
 160 }
 161
 162 my(@sumfiles) = @ARGV;
 163 -f $_ || die "$_ is not a regular file!\n" foreach @sumfiles;
 164 my(%results, @inc_changes, @exc_changes, %checksums);
 165
 166 # We decrement the values given so that they correspond
 167 # to indices into our results array.
 168 if($options{i}) {
 169         $options{i} =~ /(\d+):(\d+)/;
 170         @inc_changes = ($1 - 1, $2 - 1);
 171 }
 172 if($options{x}) {
 173         $options{x} =~ /(\d+):(\d+)/;
 174         @exc_changes = ($1 - 1, $2 - 1);
 175 }
 176
 177
 178 my %analyzed_results = compareSumFiles(\@sumfiles);
 179
 180 foreach my $cat (qw(improvements regressions miscellaneous)) {
 181         if(@sumfiles == 3) {
 182                 my @subcounts;
 183                 if(!$options{p}) {
 184                         $subcounts[$_] = @{$analyzed_results{$cat}->[$_] || []} for(0..2);
 185                         print "\u$cat: ", ($subcounts[0]+$subcounts[1]+$subcounts[2]), "\n";
 186                 }
 187
 188                 for(my $i = 0; $i < 3; $i++) {
 189                         if(!$options{p} and $cat ne "miscellaneous") {
 190                                 if($i == 0) {
 191                                         if($cat eq "regressions") {
 192                                                 print "\tSuccess in old1 only: $subcounts[$i]\n";
 193                                         } else {
 194                                                 print "\tFailure in old1 only: $subcounts[$i]\n";
 195                                         }
 196                                 } elsif($i == 1) {
 197                                         if($cat eq "regressions") {
 198                                                 print "\tSuccess in old2 only: $subcounts[$i]\n";
 199                                         } else {
 200                                                 print "\tFailure in old2 only: $subcounts[$i]\n";
 201                                         }
 202                                 } else {
 203                                         if($cat eq "regressions") {
 204                                                 print "\tFailure in new only: $subcounts[$i]\n";
 205                                         } else {
 206                                                 print "\tSuccess in new only: $subcounts[$i]\n";
 207                                         }
 208                                 }
 209                         }
 210
 211                         foreach my $test (sort {$a->{name} cmp $b->{name}} @{$analyzed_results{$cat}->[$i] || []}) {
 212                                 if(!$options{p}) {
 213                                         if($cat eq "miscellaneous") {
 214                                                 print "\t";
 215                                         } else {
 216                                                 print "\t\t";
 217                                         }
 218                                 } else {
 219                                         if($cat eq "regressions") {
 220                                                 print "R";
 221                                         } else {
 222                                                 print "I";
 223                                         }
 224
 225                                         print $i+1, " ";
 226                                 }
 227                                 printf "%s [%s,%s,%s]\n", $test->{name}, $test->{data}->[0], $test->{data}->[1], $test->{data}->[2];
 228                         }
 229                 }
 230         } else {
 231                 if(!$options{p}) {
 232                         my $subcount = @{$analyzed_results{$cat}};
 233                         print "\u$cat: $subcount\n";
 234                 }
 235
 236                 foreach my $test (sort {$a->{name} cmp $b->{name}} @{$analyzed_results{$cat}}) {
 237                         if(!$options{p}) {
 238                                 print "\t";
 239                         } else {
 240                                 if($cat eq "regressions") {
 241                                         print "R";                              } else {
 242                                         print "I";
 243                                 }
 244
 245                                 print "  ";
 246                         }
 247                         printf "%s [%s,%s]\n", $test->{name}, $test->{data}->[0], $test->{data}->[1], $test->{data}->[2];
 248                 }
 249         }
 250 }