#! /usr/bin/env perl
# Copyright 2007-2018 The OpenSSL Project Authors. All Rights Reserved.
#
-# Licensed under the OpenSSL license (the "License"). You may not use
+# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
# On z990 it was measured to perform 2.6-2.2 times better than
# compiler-generated code, less for longer keys...
-$flavour = shift;
+# $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 =~ /3[12]/) {
$SIZE_T=4;
$g="g";
}
-while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
+$output and open STDOUT,">$output";
$stdframe=16*$SIZE_T+4*8;
lghi $NHI,0
alcgr $NHI,$nhi
- la $j,8(%r0) # j=1
+ la $j,8 # j=1
lr $count,$num
.align 16
lghi $NHI,0
alcgr $NHI,$nhi
- la $j,8(%r0) # j=1
+ la $j,8 # j=1
lr $count,$num
.align 16
la $ap,$stdframe($sp)
ahi $num,1 # restore $num, incidentally clears "borrow"
- la $j,0(%r0)
+ la $j,0
lr $count,$num
.Lsub: lg $alo,0($j,$ap)
lg $nlo,0($j,$np)
lghi $NHI,-1
xgr $NHI,$AHI
- la $j,0(%r0)
+ la $j,0
lgr $count,$num
.Lcopy: lg $ahi,$stdframe($j,$sp) # conditional copy
lg $alo,0($j,$rp)
s/_dswap\s+(%r[0-9]+)/sprintf("rllg\t%s,%s,32",$1,$1) if($SIZE_T==4)/e;
print $_,"\n";
}
-close STDOUT;
+close STDOUT or die "error closing STDOUT: $!";