# the cost of 15/12% regression on Cortex-A5/A7, it's even possible
# to improve Cortex-A9 result, but then A5/A7 loose more than 20%;
-$flavour = shift;
-if ($flavour=~/\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
-else { while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {} }
+# $output is the last argument if it looks like a file (it has an extension)
+# $flavour is the first argument if it doesn't look like a file
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
if ($flavour && $flavour ne "void") {
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
die "can't locate arm-xlate.pl";
- open STDOUT,"| \"$^X\" $xlate $flavour $output";
+ open STDOUT,"| \"$^X\" $xlate $flavour \"$output\""
+ or die "can't call $xlate: $!";
} else {
- open STDOUT,">$output";
+ $output and open STDOUT,">$output";
}
($ctx,$inp,$len,$padbit)=map("r$_",(0..3));
print $_,"\n";
}
-close STDOUT; # enforce flush
+close STDOUT or die "error closing STDOUT"; # enforce flush