66 lines
1.6 KiB
Perl
Executable File
66 lines
1.6 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
|
use strict;
|
|
use File::Temp qw/ tempdir /;
|
|
my $prog = "reducer";
|
|
|
|
die "$prog <code file> <error string> [optional command]\n" if ($#ARGV < 0);
|
|
my $file = shift @ARGV;
|
|
die "$prog: [error] cannot read file $file\n" if (! -r $file);
|
|
|
|
my $magic = shift @ARGV;
|
|
die "$prog: [error] no error string specified\n" if (! defined $magic);
|
|
|
|
# Create a backup of the file.
|
|
my $dir = tempdir( CLEANUP => 1 );
|
|
print "$prog: created temporary directory '$dir'\n";
|
|
my $srcFile = "$dir/$file";
|
|
`cp $file $srcFile`;
|
|
|
|
# Create the script.
|
|
my $scriptFile = "$dir/script";
|
|
open(OUT, ">$scriptFile") or die "$prog: cannot create '$scriptFile'\n";
|
|
my $reduceOut = "$dir/reduceOut";
|
|
|
|
my $command;
|
|
if (scalar(@ARGV) > 0) { $command = \@ARGV; }
|
|
else {
|
|
my $compiler = "clang";
|
|
$command = [$compiler, "-fsyntax-only", "-Wfatal-errors", "-Wno-deprecated-declarations", "-Wimplicit-function-declaration"];
|
|
}
|
|
push @$command, $srcFile;
|
|
my $commandStr = "@$command";
|
|
|
|
print OUT <<ENDTEXT;
|
|
#!/usr/bin/perl -w
|
|
use strict;
|
|
my \$BAD = 1;
|
|
my \$GOOD = 0;
|
|
`rm -f $reduceOut`;
|
|
my \$command = "$commandStr > $reduceOut 2>&1";
|
|
system(\$command);
|
|
open(IN, "$reduceOut") or exit(\$BAD);
|
|
my \$found = 0;
|
|
while(<IN>) {
|
|
if (/$magic/) { exit \$GOOD; }
|
|
}
|
|
exit \$BAD;
|
|
ENDTEXT
|
|
close(OUT);
|
|
`chmod +x $scriptFile`;
|
|
|
|
print "$prog: starting reduction\n";
|
|
sub multidelta($) {
|
|
my ($level) = @_;
|
|
system("multidelta -level=$level $scriptFile $srcFile");
|
|
}
|
|
|
|
for (my $i = 1 ; $i <= 5; $i++) {
|
|
foreach my $level (0,0,1,1,2,2,10) {
|
|
multidelta($level);
|
|
}
|
|
}
|
|
|
|
# Copy the final file.
|
|
`cp $srcFile $file.reduced`;
|
|
print "$prog: generated '$file.reduced";
|