mirror of git://gcc.gnu.org/git/gcc.git
251 lines
6.9 KiB
Perl
Executable File
251 lines
6.9 KiB
Perl
Executable File
#!/usr/bin/perl
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# Three-way DejaGNU comparison; uses dglib.pm. Run perldoc on this file for
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# usage.
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#
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# Author: Matthew Sachs <msachs@apple.com>
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#
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# Copyright (c) 2006 Free Software Foundation.
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#
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# This file is part of GCC.
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#
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# GCC is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# GCC is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GCC; see the file COPYING. If not, write to
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# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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=pod
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=head1 SYNOPSIS
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compareSumTests3 -- Two-way or three-way compare between DejaGNU .sum files
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=head1 USAGE
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compareSumTests3 old1.sum [old2.sum] new.sum
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compareSumTests3 -i 1:2 -x 2:3 old1.sum old2.sum new.sum
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=head1 DESCRIPTION
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Gives results in terms of 'new' (e.g. things that work in 'new' and don't in
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other compilers are improvements, things that don't in 'new' and do in others
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are regressions, and it tells you which of the two old compilers (or both)
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the test is a regression from.
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We treat any DG result other than PASS or XFAIL as a failure, e.g.
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UNRESOLVED, UNTESTED or test was not run.
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We merge some tests into 'logical tests' with multiple subphases.
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For instance, some tests will have compile, execute, and link
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subtests. For these tests, if one of the phases fails, we
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indicate which phase the failure originates in. For instance,
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in the following test results:
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gcc.c-torture/compile_execute/xxxx.c: [FAIL:C,FAIL:X,PASS]
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the "compile_execute" replaces the compile or execute portion of the test name,
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and "FAIL:C" and "FAIL:X" indicates where the combined test failed.
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=head1 OPTIONS
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=head2 OVERVIEW
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=over 4
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=item *
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C<-i X:Y>: Only display differences between the two indicated runs.
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=item *
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C<-p>: Give plain output, suitable for piping to another program.
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=item *
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C<-x X:Y>: Exclude differences between the two indicated runs.
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=back
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=head2 PLAIN OUTPUT FORMAT
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In the plain
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output format, the category headers are not displayed and there are no tabs
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in front of each result line. Instead, each result line has two characters
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followed by a space in front of it. The first character will be either an 'I'
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for improvement or 'R' for regression; the second character will be a 1, 2, or 3,
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indicating which run was the odd one out.
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=head2 SELECTING CHANGE SUBSETS
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The following options cause only a selected subset of changes to be displayed.
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These options ask for a "run", a number which is used to select
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one of the three runs (C<old1>, C<old2>, or C<new>.) C<1> and C<2> signify C<old1> and C<old2>
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respectively; 3 signifies C<new>. If multiple options are given, the changes displayed
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will be those which obey all of the given restrictions.
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Typical usage of these options is to express something like "give me all changes
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between 2 and 3, except for those where there was the same difference betwen 1 and 2
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(as between 2 and 3.)" This would be given as:
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-i 2:3 -x 1:2
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=over 4
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=item *
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C<-i X:Y>: Only differences which are present between the two runs given
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are displayed. For instance, if C<-i 1:2> is given and test A passes in
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runs 1 and 2 but fails in run 3, that result will not be displayed.
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=item *
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C<-x X:Y>: Differences which are identical to a difference between the two runs
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given will B<not> be displayed. For instance, if C<-x 1:2> is given and
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test A passes in run 1 and fails in runs 2 and 3, that result will not be
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displayed (since C<-x> will cause the difference between 1 and 2 to be ignored,
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and the difference in 1 and 3 parallels the difference between 1 and 2.)
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This option may only be used in conjunction with C<-i>.
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=back
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=cut
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use strict;
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use warnings;
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use Getopt::Long;
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use FindBin qw($Bin);
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use lib "$Bin";
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use dglib;
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my %options;
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my $error = undef;
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if(!GetOptions(
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"p" => \$options{p},
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"i=s" => \$options{i},
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"x=s" => \$options{x},
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)) {
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$error = "";
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} elsif(@ARGV != 2 and @ARGV != 3) {
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$error = "";
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} elsif($options{x} and !$options{i}) {
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$error = "-x may only be given in conjunction with -i.";
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} else {
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foreach my $opt("i", "x") {
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if($options{$opt} and
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($options{$opt} !~ /^([123]):([123])$/ or
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$1 == $2)
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) {
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$error = "Invalid -$opt argument.";
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}
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}
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}
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if(defined($error)) {
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print STDERR "$error\n" if $error;
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print STDERR "Usage: compareSumTests3 [-p] [-i X:Y [-x X:Y]] old1.sum old2.sum new.sum\n";
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print STDERR "Try 'perldoc $0' for further information.\n";
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exit 1;
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}
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my(@sumfiles) = @ARGV;
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-f $_ || die "$_ is not a regular file!\n" foreach @sumfiles;
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my(%results, @inc_changes, @exc_changes, %checksums);
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# We decrement the values given so that they correspond
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# to indices into our results array.
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if($options{i}) {
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$options{i} =~ /(\d+):(\d+)/;
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@inc_changes = ($1 - 1, $2 - 1);
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}
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if($options{x}) {
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$options{x} =~ /(\d+):(\d+)/;
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@exc_changes = ($1 - 1, $2 - 1);
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}
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my %analyzed_results = compareSumFiles(\@sumfiles);
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foreach my $cat (qw(improvements regressions miscellaneous)) {
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if(@sumfiles == 3) {
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my @subcounts;
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if(!$options{p}) {
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$subcounts[$_] = @{$analyzed_results{$cat}->[$_] || []} for(0..2);
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print "\u$cat: ", ($subcounts[0]+$subcounts[1]+$subcounts[2]), "\n";
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}
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for(my $i = 0; $i < 3; $i++) {
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if(!$options{p} and $cat ne "miscellaneous") {
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if($i == 0) {
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if($cat eq "regressions") {
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print "\tSuccess in old1 only: $subcounts[$i]\n";
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} else {
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print "\tFailure in old1 only: $subcounts[$i]\n";
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}
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} elsif($i == 1) {
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if($cat eq "regressions") {
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print "\tSuccess in old2 only: $subcounts[$i]\n";
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} else {
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print "\tFailure in old2 only: $subcounts[$i]\n";
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}
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} else {
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if($cat eq "regressions") {
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print "\tFailure in new only: $subcounts[$i]\n";
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} else {
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print "\tSuccess in new only: $subcounts[$i]\n";
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}
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}
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}
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foreach my $test (sort {$a->{name} cmp $b->{name}} @{$analyzed_results{$cat}->[$i] || []}) {
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if(!$options{p}) {
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if($cat eq "miscellaneous") {
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print "\t";
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} else {
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print "\t\t";
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}
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} else {
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if($cat eq "regressions") {
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print "R";
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} else {
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print "I";
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}
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print $i+1, " ";
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}
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printf "%s [%s,%s,%s]\n", $test->{name}, $test->{data}->[0], $test->{data}->[1], $test->{data}->[2];
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}
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}
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} else {
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if(!$options{p}) {
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my $subcount = @{$analyzed_results{$cat}};
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print "\u$cat: $subcount\n";
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}
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foreach my $test (sort {$a->{name} cmp $b->{name}} @{$analyzed_results{$cat}}) {
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if(!$options{p}) {
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print "\t";
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} else {
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if($cat eq "regressions") {
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print "R"; } else {
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print "I";
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}
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print " ";
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}
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printf "%s [%s,%s]\n", $test->{name}, $test->{data}->[0], $test->{data}->[1], $test->{data}->[2];
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}
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}
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}
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