139 lines
3.9 KiB
Perl
139 lines
3.9 KiB
Perl
#!/usr/bin/perl -w
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#
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# Copyright 2001, 2002 Free Software Foundation, Inc.
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#
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# This file is part of the GNU MP Library.
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#
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# The GNU MP Library is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation; either version 2.1 of the License, or (at
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# your option) any later version.
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#
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# The GNU MP Library is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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# Usage: cd $(builddir)/mpn
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# $(srcdir)/x86/t-zdisp2.pl
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#
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# Grep for any "0(reg...)" addressing modes coming out of the x86 .asm
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# files. Additive expressions like "12+4-16" are recognised too.
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#
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# Old gas doesn't preserve the "0" displacement, so if it's wanted then
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# Zdisp ought to be used to give explicit .byte sequences. See
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# mpn/x86/README.
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#
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# No output means everything is ok. All the asm files are put through m4 in
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# PIC and non-PIC modes, and in each multi-function form, all of which can
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# take a while to run.
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#
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# This program is only meant for use during development.
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use strict;
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use File::Find;
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use File::Basename;
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use Getopt::Std;
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my %opt;
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getopts('t', \%opt);
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my $srcdir;
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open IN, '<Makefile' or die;
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while (<IN>) {
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if (/^srcdir[ \t]*=[ \t]*(.*)/) {
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$srcdir = $1;
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last;
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}
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}
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close IN or die;
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defined $srcdir or die "Cannot find \$srcdir in Makefile\n";
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my $filecount = 0;
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my $tempfile = 't-zdisp2.tmp';
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open KARA, ">$tempfile" or die;
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close KARA or die;
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find({ wanted => \&process, preprocess => \&process_mparam, no_chdir => 1 },
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"$srcdir/x86");
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sub process {
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if (/gmp-mparam.h$/) {
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process_mparam($_);
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} elsif (/\.asm$/) {
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process_asm($_);
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}
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}
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# Ensure we're using the right SQR_KARATSUBA_THRESHOLD for the part of the
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# tree being processed.
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sub process_mparam {
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my $file = "$File::Find::dir/gmp-mparam.h";
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if (-f $file) {
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print "$file\n" if $opt{'t'};
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open MPARAM, "<$file" or die;
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while (<MPARAM>) {
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if (/^#define SQR_KARATSUBA_THRESHOLD[ \t]*([0-9][0-9]*)/) {
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open KARA, ">$tempfile" or die;
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print KARA "define(\`SQR_KARATSUBA_THRESHOLD',$1)\n\n";
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print "define(\`SQR_KARATSUBA_THRESHOLD',$1)\n" if $opt{'t'};
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close KARA or die;
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last;
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}
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}
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close MPARAM or die;
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}
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return @_;
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}
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sub process_asm {
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my ($file) = @_;
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my $base = basename ($file, '.asm');
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my @funs;
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if ($base eq 'aors_n') { @funs = qw(add_n sub_n); }
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elsif ($base eq 'aorsmul_1') { @funs = qw(addmul_1 submul_1); }
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elsif ($base eq 'popham') { @funs = qw(popcount hamdist); }
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elsif ($base eq 'logops_n') { @funs = qw(and_n andn_n nand_n ior_n iorn_n nior_n xor_n xnor_n); }
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elsif ($base eq 'lorrshift') { @funs = qw(lshift rshift); }
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else { @funs = ($base); }
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foreach my $fun (@funs) {
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foreach my $pic ('', ' -DPIC') {
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my $header = "$file: 0: $pic\n";
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$filecount++;
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my $m4 = "m4 -DHAVE_HOST_CPU_athlon -DOPERATION_$fun $pic ../config.m4 $tempfile $file";
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print "$m4\n" if $opt{'t'};
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open IN, "$m4 |" or die;
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while (<IN>) {
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next unless /([0-9+-][0-9 \t+-]*)\(%/;
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my $pat=$1;
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$pat = eval($pat);
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next if ($pat != 0);
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print "$header$_";
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$header='';
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}
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close IN or die;
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}
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}
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}
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unlink($tempfile);
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print "total $filecount processed\n";
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exit 0;
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# Local variables:
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# perl-indent-level: 2
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# End:
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