Imported gcc-4.4.3

[msp430-gcc.git] / gmp / mpn / x86 / t-zdisp2.pl

diff --git a/gmp/mpn/x86/t-zdisp2.pl b/gmp/mpn/x86/t-zdisp2.pl
new file mode 100755 (executable)
index 0000000..d5e2d93
--- /dev/null
+++ b/gmp/mpn/x86/t-zdisp2.pl
@@ -0,0 +1,136 @@
+#!/usr/bin/perl -w
+#
+# Copyright 2001, 2002 Free Software Foundation, Inc.
+#
+# This file is part of the GNU MP Library.
+#
+# The GNU MP Library is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation; either version 3 of the License, or (at
+# your option) any later version.
+#
+# The GNU MP Library is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+# License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.
+
+
+# Usage: cd $(builddir)/mpn
+#        $(srcdir)/x86/t-zdisp2.pl
+#
+# Grep for any "0(reg...)" addressing modes coming out of the x86 .asm
+# files.  Additive expressions like "12+4-16" are recognised too.
+#
+# Old gas doesn't preserve the "0" displacement, so if it's wanted then
+# Zdisp ought to be used to give explicit .byte sequences.  See
+# mpn/x86/README.
+#
+# No output means everything is ok.  All the asm files are put through m4 in
+# PIC and non-PIC modes, and in each multi-function form, all of which can
+# take a while to run.
+#
+# This program is only meant for use during development.
+
+use strict;
+use File::Find;
+use File::Basename;
+use Getopt::Std;
+
+my %opt;
+getopts('t', \%opt);
+
+
+my $srcdir;
+open IN, '<Makefile' or die;
+while (<IN>) {
+  if (/^srcdir[ \t]*=[ \t]*(.*)/) {
+    $srcdir = $1;
+    last;
+  }
+}
+close IN or die;
+defined $srcdir or die "Cannot find \$srcdir in Makefile\n";
+
+my $filecount = 0;
+
+my $tempfile = 't-zdisp2.tmp';
+open KARA, ">$tempfile" or die;
+close KARA or die;
+
+find({ wanted => \&process, preprocess => \&process_mparam, no_chdir => 1 },
+     "$srcdir/x86");
+
+sub process {
+  if (/gmp-mparam.h$/) {
+    process_mparam($_);
+  } elsif (/\.asm$/) {
+    process_asm($_);
+  }
+}
+
+# Ensure we're using the right SQR_KARATSUBA_THRESHOLD for the part of the
+# tree being processed.
+sub process_mparam {
+  my $file = "$File::Find::dir/gmp-mparam.h";
+  if (-f $file) {
+    print "$file\n" if $opt{'t'};
+    open MPARAM, "<$file" or die;
+    while (<MPARAM>) {
+      if (/^#define SQR_KARATSUBA_THRESHOLD[ \t]*([0-9][0-9]*)/) {
+        open KARA, ">$tempfile" or die;
+        print KARA "define(\`SQR_KARATSUBA_THRESHOLD',$1)\n\n";
+        print "define(\`SQR_KARATSUBA_THRESHOLD',$1)\n" if $opt{'t'};
+        close KARA or die;
+        last;
+      }
+    }
+    close MPARAM or die;
+  }
+  return @_;
+}
+
+sub process_asm {
+  my ($file) = @_;
+  my $base = basename ($file, '.asm');
+
+  my @funs;
+  if    ($base eq 'aors_n')    { @funs = qw(add_n sub_n); }
+  elsif ($base eq 'aorsmul_1') { @funs = qw(addmul_1 submul_1); }
+  elsif ($base eq 'popham')    { @funs = qw(popcount hamdist); }
+  elsif ($base eq 'logops_n')  { @funs = qw(and_n andn_n nand_n ior_n iorn_n nior_n xor_n xnor_n); }
+  elsif ($base eq 'lorrshift') { @funs = qw(lshift rshift); }
+  else                         { @funs = ($base); }
+
+  foreach my $fun (@funs) {
+    foreach my $pic ('', ' -DPIC') {
+      my $header = "$file: 0: $pic\n";
+      $filecount++;
+
+      my $m4 = "m4 -DHAVE_HOST_CPU_athlon -DOPERATION_$fun $pic ../config.m4 $tempfile $file";
+      print "$m4\n" if $opt{'t'};
+
+      open IN, "$m4 |" or die;
+      while (<IN>) {
+        next unless /([0-9+-][0-9 \t+-]*)\(%/;
+        my $pat=$1;
+        $pat = eval($pat);
+        next if ($pat != 0);
+        print "$header$_";
+        $header='';
+      }
+      close IN or die;
+    }
+  }
+}
+
+unlink($tempfile);
+print "total $filecount processed\n";
+exit 0;
+
+
+# Local variables:
+# perl-indent-level: 2
+# End: