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833 lines
24 KiB
Perl
Executable File
833 lines
24 KiB
Perl
Executable File
#!/usr/bin/perl -w
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# Copyright (C) 1999-2018 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# Contributed by Andreas Jaeger <aj@suse.de>, 1999.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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# This file needs to be tidied up
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# Note that functions and tests share the same namespace.
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# Information about tests are stored in: %results
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# $results{$test}{"type"} is the result type, e.g. normal or complex.
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# $results{$test}{"has_ulps"} is set if deltas exist.
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# In the following description $type and $float are:
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# - $type is either "normal", "real" (for the real part of a complex number)
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# or "imag" (for the imaginary part # of a complex number).
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# - $float is either of float, ifloat, double, idouble, ldouble, ildouble;
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# It represents the underlying floating point type (float, double or long
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# double) and if inline functions (the leading i stands for inline)
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# are used.
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# $results{$test}{$type}{"ulp"}{$float} is defined and has a delta as value
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use Getopt::Std;
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use strict;
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use vars qw ($input $output $auto_input);
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use vars qw (%results);
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use vars qw (%beautify @all_floats %all_floats_pfx);
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use vars qw ($ulps_file);
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use vars qw (%auto_tests);
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# all_floats is sorted and contains all recognised float types
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@all_floats = ('double', 'float', 'float128', 'idouble',
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'ifloat', 'ifloat128', 'ildouble', 'ldouble');
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# all_floats_pfx maps C types to their C like prefix for macros.
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%all_floats_pfx =
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( "double" => "DBL",
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"ldouble" => "LDBL",
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"float" => "FLT",
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"float128" => "FLT128",
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);
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%beautify =
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( "minus_zero" => "-0",
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"plus_zero" => "+0",
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"-0x0p+0f" => "-0",
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"-0x0p+0" => "-0",
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"-0x0p+0L" => "-0",
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"0x0p+0f" => "+0",
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"0x0p+0" => "+0",
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"0x0p+0L" => "+0",
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"minus_infty" => "-inf",
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"plus_infty" => "inf",
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"qnan_value" => "qNaN",
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"snan_value" => "sNaN",
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"snan_value_ld" => "sNaN",
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);
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# get Options
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# Options:
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# a: auto-libm-test-out input file
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# c: .inc input file
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# u: ulps-file
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# n: new ulps file
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# C: libm-test.c output file
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# H: libm-test-ulps.h output file
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# h: help
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use vars qw($opt_a $opt_c $opt_u $opt_n $opt_C $opt_H $opt_h);
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getopts('a:c:u:n:C:H:h');
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$ulps_file = 'libm-test-ulps';
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if ($opt_h) {
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print "Usage: gen-libm-test.pl [OPTIONS]\n";
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print " -h print this help, then exit\n";
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print " -a FILE input file with automatically generated tests\n";
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print " -c FILE input file .inc file with tests\n";
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print " -u FILE input file with ulps\n";
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print " -n FILE generate sorted file FILE from libm-test-ulps\n";
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print " -C FILE generate output C file FILE from libm-test.inc\n";
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print " -H FILE generate output ulps header FILE from libm-test-ulps\n";
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exit 0;
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}
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$ulps_file = $opt_u if ($opt_u);
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$input = $opt_c if ($opt_c);
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$auto_input = $opt_a if ($opt_a);
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$output = $opt_C if ($opt_C);
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&parse_ulps ($ulps_file) if ($opt_H || $opt_n);
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&parse_auto_input ($auto_input) if ($opt_C);
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&generate_testfile ($input, $output) if ($opt_C);
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&output_ulps ($opt_H, $ulps_file) if ($opt_H);
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&print_ulps_file ($opt_n) if ($opt_n);
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# Return a nicer representation
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sub beautify {
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my ($arg) = @_;
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my ($tmp);
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if (exists $beautify{$arg}) {
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return $beautify{$arg};
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}
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if ($arg =~ /^-/) {
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$tmp = $arg;
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$tmp =~ s/^-//;
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if (exists $beautify{$tmp}) {
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return '-' . $beautify{$tmp};
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}
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}
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if ($arg =~ /^-?0x[0-9a-f.]*p[-+][0-9]+f$/) {
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$arg =~ s/f$//;
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}
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if ($arg =~ /[0-9]L$/) {
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$arg =~ s/L$//;
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}
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return $arg;
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}
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# Return a nicer representation of a complex number
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sub build_complex_beautify {
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my ($r, $i) = @_;
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my ($str1, $str2);
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$str1 = &beautify ($r);
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$str2 = &beautify ($i);
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if ($str2 =~ /^-/) {
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$str2 =~ s/^-//;
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$str1 .= ' - ' . $str2;
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} else {
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$str1 .= ' + ' . $str2;
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}
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$str1 .= ' i';
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return $str1;
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}
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# Return the text to put in an initializer for a test's exception
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# information.
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sub show_exceptions {
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my ($ignore_result, $non_finite, $test_snan, $exception) = @_;
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$ignore_result = ($ignore_result ? "IGNORE_RESULT|" : "");
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$non_finite = ($non_finite ? "NON_FINITE|" : "");
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$test_snan = ($test_snan ? "TEST_SNAN|" : "");
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if (defined $exception) {
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return ", ${ignore_result}${non_finite}${test_snan}$exception";
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} else {
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return ", ${ignore_result}${non_finite}${test_snan}0";
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}
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}
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# Apply the LIT(x) macro to a literal floating point constant
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# and strip any existing suffix.
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sub _apply_lit {
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my ($lit) = @_;
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my $exp_re = "([+-])?[[:digit:]]+";
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# Don't wrap something that does not look like a:
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# * Hexadecimal FP value
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# * Decimal FP value without a decimal point
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# * Decimal value with a fraction
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return $lit if $lit !~ /([+-])?0x[[:xdigit:]\.]+[pP]$exp_re/
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and $lit !~ /[[:digit:]]+[eE]$exp_re/
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and $lit !~ /[[:digit:]]*\.[[:digit:]]*([eE]$exp_re)?/;
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# Strip any existing literal suffix.
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$lit =~ s/[lLfF]$//;
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return "LIT (${lit})";
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}
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# Apply LIT macro to individual tokens within an expression.
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#
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# This function assumes the C expression follows GNU coding
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# standards. Specifically, a space separates each lexical
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# token. Otherwise, this post-processing may apply LIT
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# incorrectly, or around an entire expression.
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sub apply_lit {
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my ($lit) = @_;
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my @toks = split (/ /, $lit);
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foreach (@toks) {
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$_ = _apply_lit ($_);
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}
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return join (' ', @toks);
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}
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# Parse the arguments to TEST_x_y
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sub parse_args {
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my ($file, $descr, $args) = @_;
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my (@args, $descr_args, $descr_res, @descr);
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my ($current_arg, $cline, $cline_res, $i);
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my (@special);
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my ($call_args);
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my ($ignore_result_any, $ignore_result_all);
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my ($num_res, @args_res, @start_rm, $rm);
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my (@plus_oflow, @minus_oflow, @plus_uflow, @minus_uflow);
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my (@errno_plus_oflow, @errno_minus_oflow);
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my (@errno_plus_uflow, @errno_minus_uflow);
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my (@xfail_rounding_ibm128_libgcc);
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my ($non_finite, $test_snan);
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($descr_args, $descr_res) = split /_/,$descr, 2;
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@args = split /,\s*/, $args;
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$call_args = "";
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# Generate first the string that's shown to the user
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$current_arg = 1;
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@descr = split //,$descr_args;
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for ($i = 0; $i <= $#descr; $i++) {
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my $comma = "";
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if ($current_arg > 1) {
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$comma = ', ';
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}
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# FLOAT, long double, int, unsigned int, long int, long long int
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if ($descr[$i] =~ /f|j|i|u|l|L/) {
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$call_args .= $comma . &beautify ($args[$current_arg]);
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++$current_arg;
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next;
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}
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# Argument passed via pointer.
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if ($descr[$i] =~ /p/) {
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next;
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}
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# &FLOAT, &int - simplify call by not showing argument.
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if ($descr[$i] =~ /F|I/) {
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next;
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}
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# complex
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if ($descr[$i] eq 'c') {
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$call_args .= $comma . &build_complex_beautify ($args[$current_arg], $args[$current_arg+1]);
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$current_arg += 2;
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next;
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}
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die ("$descr[$i] is unknown");
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}
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# Result
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@args_res = @args[$current_arg .. $#args];
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$num_res = 0;
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@descr = split //,$descr_res;
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foreach (@descr) {
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if ($_ =~ /f|i|l|L|M|U/) {
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++$num_res;
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} elsif ($_ eq 'c') {
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$num_res += 2;
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} elsif ($_ eq 'b') {
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# boolean
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++$num_res;
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} elsif ($_ eq '1') {
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++$num_res;
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} else {
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die ("$_ is unknown");
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}
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}
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# consistency check
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if ($#args_res == $num_res - 1) {
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# One set of results for all rounding modes, no flags.
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@start_rm = ( 0, 0, 0, 0 );
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} elsif ($#args_res == $num_res) {
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# One set of results for all rounding modes, with flags.
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die ("wrong number of arguments")
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unless ($args_res[$#args_res] =~ /EXCEPTION|ERRNO|IGNORE_ZERO_INF_SIGN|TEST_NAN_SIGN|NO_TEST_INLINE|XFAIL/);
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@start_rm = ( 0, 0, 0, 0 );
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} elsif ($#args_res == 4 * $num_res + 3) {
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# One set of results per rounding mode, with flags.
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@start_rm = ( 0, $num_res + 1, 2 * $num_res + 2, 3 * $num_res + 3 );
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} else {
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die ("wrong number of arguments");
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}
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# Put the C program line together
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# Reset some variables to start again
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$current_arg = 1;
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$call_args =~ s/\"/\\\"/g;
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$cline = "{ \"$call_args\"";
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@descr = split //,$descr_args;
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for ($i=0; $i <= $#descr; $i++) {
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# FLOAT, int, long int, long long int
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if ($descr[$i] =~ /f|j|i|u|l|L/) {
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if ($descr[$i] eq "f") {
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$cline .= ", " . &apply_lit ($args[$current_arg]);
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} else {
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$cline .= ", $args[$current_arg]";
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}
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$current_arg++;
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next;
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}
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# &FLOAT, &int, argument passed via pointer
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if ($descr[$i] =~ /F|I|p/) {
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next;
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}
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# complex
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if ($descr[$i] eq 'c') {
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$cline .= ", " . &apply_lit ($args[$current_arg]);
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$cline .= ", " . &apply_lit ($args[$current_arg+1]);
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$current_arg += 2;
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next;
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}
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}
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@descr = split //,$descr_res;
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@plus_oflow = qw(max_value plus_infty max_value plus_infty);
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@minus_oflow = qw(minus_infty minus_infty -max_value -max_value);
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@plus_uflow = qw(plus_zero plus_zero plus_zero min_subnorm_value);
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@minus_uflow = qw(-min_subnorm_value minus_zero minus_zero minus_zero);
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@errno_plus_oflow = qw(0 ERRNO_ERANGE 0 ERRNO_ERANGE);
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@errno_minus_oflow = qw(ERRNO_ERANGE ERRNO_ERANGE 0 0);
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@errno_plus_uflow = qw(ERRNO_ERANGE ERRNO_ERANGE ERRNO_ERANGE 0);
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@errno_minus_uflow = qw(0 ERRNO_ERANGE ERRNO_ERANGE ERRNO_ERANGE);
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@xfail_rounding_ibm128_libgcc = qw(XFAIL_IBM128_LIBGCC 0
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XFAIL_IBM128_LIBGCC XFAIL_IBM128_LIBGCC);
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for ($rm = 0; $rm <= 3; $rm++) {
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$current_arg = $start_rm[$rm];
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$ignore_result_any = 0;
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$ignore_result_all = 1;
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$cline_res = "";
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@special = ();
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foreach (@descr) {
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if ($_ =~ /b|f|j|i|l|L|M|U/ ) {
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my ($result) = $args_res[$current_arg];
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if ($result eq "IGNORE") {
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$ignore_result_any = 1;
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$result = "0";
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} else {
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$ignore_result_all = 0;
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}
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if ($_ eq "f") {
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$result = apply_lit ($result);
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}
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$cline_res .= ", $result";
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$current_arg++;
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} elsif ($_ eq 'c') {
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my ($result1) = $args_res[$current_arg];
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if ($result1 eq "IGNORE") {
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$ignore_result_any = 1;
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$result1 = "0";
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} else {
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$ignore_result_all = 0;
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}
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my ($result2) = $args_res[$current_arg + 1];
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if ($result2 eq "IGNORE") {
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$ignore_result_any = 1;
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$result2 = "0";
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} else {
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$ignore_result_all = 0;
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}
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$result1 = apply_lit ($result1);
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$result2 = apply_lit ($result2);
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$cline_res .= ", $result1, $result2";
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$current_arg += 2;
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} elsif ($_ eq '1') {
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push @special, $args_res[$current_arg];
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++$current_arg;
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}
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}
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if ($ignore_result_any && !$ignore_result_all) {
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die ("some but not all function results ignored\n");
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}
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# Determine whether any arguments or results, for any rounding
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# mode, are non-finite.
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$non_finite = ($args =~ /qnan_value|snan_value|plus_infty|minus_infty/);
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$test_snan = ($args =~ /snan_value/);
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# Add exceptions.
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$cline_res .= show_exceptions ($ignore_result_any,
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$non_finite,
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$test_snan,
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($current_arg <= $#args_res)
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? $args_res[$current_arg]
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: undef);
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# special treatment for some functions
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$i = 0;
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foreach (@special) {
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++$i;
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my ($extra_expected) = $_;
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my ($run_extra) = ($extra_expected ne "IGNORE" ? 1 : 0);
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if (!$run_extra) {
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$extra_expected = "0";
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} else {
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$extra_expected = apply_lit ($extra_expected);
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}
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$cline_res .= ", $run_extra, $extra_expected";
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}
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$cline_res =~ s/^, //;
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$cline_res =~ s/plus_oflow/$plus_oflow[$rm]/g;
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$cline_res =~ s/minus_oflow/$minus_oflow[$rm]/g;
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$cline_res =~ s/plus_uflow/$plus_uflow[$rm]/g;
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$cline_res =~ s/minus_uflow/$minus_uflow[$rm]/g;
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$cline_res =~ s/ERRNO_PLUS_OFLOW/$errno_plus_oflow[$rm]/g;
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$cline_res =~ s/ERRNO_MINUS_OFLOW/$errno_minus_oflow[$rm]/g;
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$cline_res =~ s/ERRNO_PLUS_UFLOW/$errno_plus_uflow[$rm]/g;
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$cline_res =~ s/ERRNO_MINUS_UFLOW/$errno_minus_uflow[$rm]/g;
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$cline_res =~ s/XFAIL_ROUNDING_IBM128_LIBGCC/$xfail_rounding_ibm128_libgcc[$rm]/g;
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$cline .= ", { $cline_res }";
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}
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print $file " $cline },\n";
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}
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# Convert a condition from auto-libm-test-out to C form.
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sub convert_condition {
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my ($cond) = @_;
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my (@conds, $ret);
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@conds = split /:/, $cond;
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foreach (@conds) {
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s/-/_/g;
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s/^/TEST_COND_/;
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}
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$ret = join " && ", @conds;
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return "($ret)";
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}
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# Return text to OR a value into an accumulated flags string.
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sub or_value {
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my ($cond) = @_;
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if ($cond eq "0") {
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return "";
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} else {
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return " | $cond";
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}
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}
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# Return a conditional expression between two values.
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sub cond_value {
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my ($cond, $if, $else) = @_;
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if ($cond eq "1") {
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return $if;
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} elsif ($cond eq "0") {
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return $else;
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} else {
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return "($cond ? $if : $else)";
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}
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}
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# Return text to OR a conditional expression between two values into
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# an accumulated flags string.
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sub or_cond_value {
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my ($cond, $if, $else) = @_;
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return or_value (cond_value ($cond, $if, $else));
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}
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# Generate libm-test.c
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sub generate_testfile {
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my ($input, $output) = @_;
|
|
|
|
open INPUT, $input or die ("Can't open $input: $!");
|
|
open OUTPUT, ">$output" or die ("Can't open $output: $!");
|
|
|
|
# Replace the special macros
|
|
while (<INPUT>) {
|
|
# AUTO_TESTS (function),
|
|
if (/^\s*AUTO_TESTS_/) {
|
|
my ($descr, $func, @modes, $auto_test, $num_auto_tests);
|
|
my (@rm_tests, $rm, $i);
|
|
@modes = qw(downward tonearest towardzero upward);
|
|
($descr, $func) = ($_ =~ /AUTO_TESTS_(\w+)\s*\((\w+)\)/);
|
|
for ($rm = 0; $rm <= 3; $rm++) {
|
|
$rm_tests[$rm] = [sort keys %{$auto_tests{$func}{$modes[$rm]}}];
|
|
}
|
|
$num_auto_tests = scalar @{$rm_tests[0]};
|
|
for ($rm = 1; $rm <= 3; $rm++) {
|
|
if ($num_auto_tests != scalar @{$rm_tests[$rm]}) {
|
|
die ("inconsistent numbers of tests for $func\n");
|
|
}
|
|
for ($i = 0; $i < $num_auto_tests; $i++) {
|
|
if ($rm_tests[0][$i] ne $rm_tests[$rm][$i]) {
|
|
die ("inconsistent list of tests of $func\n");
|
|
}
|
|
}
|
|
}
|
|
if ($num_auto_tests == 0) {
|
|
die ("no automatic tests for $func\n");
|
|
}
|
|
foreach $auto_test (@{$rm_tests[0]}) {
|
|
my ($format, $inputs, $format_conv, $args_str);
|
|
($format, $inputs) = split / /, $auto_test, 2;
|
|
$inputs =~ s/ /, /g;
|
|
$format_conv = convert_condition ($format);
|
|
print OUTPUT "#if $format_conv\n";
|
|
$args_str = "$func, $inputs";
|
|
for ($rm = 0; $rm <= 3; $rm++) {
|
|
my ($auto_test_out, $outputs, $flags);
|
|
my ($flags_conv, @flags, %flag_cond);
|
|
$auto_test_out = $auto_tests{$func}{$modes[$rm]}{$auto_test};
|
|
($outputs, $flags) = split / : */, $auto_test_out;
|
|
$outputs =~ s/ /, /g;
|
|
@flags = split / /, $flags;
|
|
foreach (@flags) {
|
|
if (/^([^:]*):(.*)$/) {
|
|
my ($flag, $cond);
|
|
$flag = $1;
|
|
$cond = convert_condition ($2);
|
|
if (defined ($flag_cond{$flag})) {
|
|
if ($flag_cond{$flag} ne "1") {
|
|
$flag_cond{$flag} .= " || $cond";
|
|
}
|
|
} else {
|
|
$flag_cond{$flag} = $cond;
|
|
}
|
|
} else {
|
|
$flag_cond{$_} = "1";
|
|
}
|
|
}
|
|
$flags_conv = "";
|
|
if (defined ($flag_cond{"ignore-zero-inf-sign"})) {
|
|
$flags_conv .= or_cond_value ($flag_cond{"ignore-zero-inf-sign"},
|
|
"IGNORE_ZERO_INF_SIGN", "0");
|
|
}
|
|
if (defined ($flag_cond{"no-test-inline"})) {
|
|
$flags_conv .= or_cond_value ($flag_cond{"no-test-inline"},
|
|
"NO_TEST_INLINE", "0");
|
|
}
|
|
if (defined ($flag_cond{"xfail"})) {
|
|
$flags_conv .= or_cond_value ($flag_cond{"xfail"},
|
|
"XFAIL_TEST", "0");
|
|
}
|
|
my (@exc_list) = qw(divbyzero inexact invalid overflow underflow);
|
|
my ($exc);
|
|
foreach $exc (@exc_list) {
|
|
my ($exc_expected, $exc_ok, $no_exc, $exc_cond, $exc_ok_cond);
|
|
$exc_expected = "\U$exc\E_EXCEPTION";
|
|
$exc_ok = "\U$exc\E_EXCEPTION_OK";
|
|
$no_exc = "0";
|
|
if ($exc eq "inexact") {
|
|
$exc_ok = "0";
|
|
$no_exc = "NO_INEXACT_EXCEPTION";
|
|
}
|
|
if (defined ($flag_cond{$exc})) {
|
|
$exc_cond = $flag_cond{$exc};
|
|
} else {
|
|
$exc_cond = "0";
|
|
}
|
|
if (defined ($flag_cond{"$exc-ok"})) {
|
|
$exc_ok_cond = $flag_cond{"$exc-ok"};
|
|
} else {
|
|
$exc_ok_cond = "0";
|
|
}
|
|
$flags_conv .= or_cond_value ($exc_cond,
|
|
cond_value ($exc_ok_cond,
|
|
$exc_ok, $exc_expected),
|
|
cond_value ($exc_ok_cond,
|
|
$exc_ok, $no_exc));
|
|
}
|
|
my ($errno_expected, $errno_unknown_cond);
|
|
if (defined ($flag_cond{"errno-edom"})) {
|
|
if ($flag_cond{"errno-edom"} ne "1") {
|
|
die ("unexpected condition for errno-edom");
|
|
}
|
|
if (defined ($flag_cond{"errno-erange"})) {
|
|
die ("multiple errno values expected");
|
|
}
|
|
$errno_expected = "ERRNO_EDOM";
|
|
} elsif (defined ($flag_cond{"errno-erange"})) {
|
|
if ($flag_cond{"errno-erange"} ne "1") {
|
|
die ("unexpected condition for errno-erange");
|
|
}
|
|
$errno_expected = "ERRNO_ERANGE";
|
|
} else {
|
|
$errno_expected = "ERRNO_UNCHANGED";
|
|
}
|
|
if (defined ($flag_cond{"errno-edom-ok"})) {
|
|
if (defined ($flag_cond{"errno-erange-ok"})
|
|
&& ($flag_cond{"errno-erange-ok"}
|
|
ne $flag_cond{"errno-edom-ok"})) {
|
|
$errno_unknown_cond = "($flag_cond{\"errno-edom-ok\"} || $flag_cond{\"errno-erange-ok\"})";
|
|
} else {
|
|
$errno_unknown_cond = $flag_cond{"errno-edom-ok"};
|
|
}
|
|
} elsif (defined ($flag_cond{"errno-erange-ok"})) {
|
|
$errno_unknown_cond = $flag_cond{"errno-erange-ok"};
|
|
} else {
|
|
$errno_unknown_cond = "0";
|
|
}
|
|
$flags_conv .= or_cond_value ($errno_unknown_cond,
|
|
"0", $errno_expected);
|
|
if ($flags_conv eq "") {
|
|
$flags_conv = ", NO_EXCEPTION";
|
|
} else {
|
|
$flags_conv =~ s/^ \|/,/;
|
|
}
|
|
$args_str .= ", $outputs$flags_conv";
|
|
}
|
|
&parse_args (\*OUTPUT, $descr, $args_str);
|
|
print OUTPUT "#endif\n";
|
|
}
|
|
next;
|
|
}
|
|
|
|
# TEST_...
|
|
if (/^\s*TEST_/) {
|
|
my ($descr, $args);
|
|
chop;
|
|
($descr, $args) = ($_ =~ /TEST_(\w+)\s*\((.*)\)/);
|
|
&parse_args (\*OUTPUT, $descr, $args);
|
|
next;
|
|
}
|
|
print OUTPUT;
|
|
}
|
|
close INPUT;
|
|
close OUTPUT;
|
|
}
|
|
|
|
|
|
|
|
# Parse ulps file
|
|
sub parse_ulps {
|
|
my ($file) = @_;
|
|
my ($test, $type, $float, $eps, $float_regex);
|
|
|
|
# Build a basic regex to match type entries in the
|
|
# generated ULPS file.
|
|
foreach my $ftype (@all_floats) {
|
|
$float_regex .= "|" . $ftype;
|
|
}
|
|
$float_regex = "^" . substr ($float_regex, 1) . ":";
|
|
|
|
# $type has the following values:
|
|
# "normal": No complex variable
|
|
# "real": Real part of complex result
|
|
# "imag": Imaginary part of complex result
|
|
open ULP, $file or die ("Can't open $file: $!");
|
|
while (<ULP>) {
|
|
chop;
|
|
# ignore comments and empty lines
|
|
next if /^#/;
|
|
next if /^\s*$/;
|
|
if (/^Function: /) {
|
|
if (/Real part of/) {
|
|
s/Real part of //;
|
|
$type = 'real';
|
|
} elsif (/Imaginary part of/) {
|
|
s/Imaginary part of //;
|
|
$type = 'imag';
|
|
} else {
|
|
$type = 'normal';
|
|
}
|
|
($test) = ($_ =~ /^Function:\s*\"([a-zA-Z0-9_]+)\"/);
|
|
next;
|
|
}
|
|
if (/$float_regex/) {
|
|
($float, $eps) = split /\s*:\s*/,$_,2;
|
|
|
|
if ($eps eq "0") {
|
|
# ignore
|
|
next;
|
|
} else {
|
|
if (!defined ($results{$test}{$type}{'ulp'}{$float})
|
|
|| $results{$test}{$type}{'ulp'}{$float} < $eps) {
|
|
$results{$test}{$type}{'ulp'}{$float} = $eps;
|
|
$results{$test}{'has_ulps'} = 1;
|
|
}
|
|
}
|
|
if ($type =~ /^real|imag$/) {
|
|
$results{$test}{'type'} = 'complex';
|
|
} elsif ($type eq 'normal') {
|
|
$results{$test}{'type'} = 'normal';
|
|
}
|
|
next;
|
|
}
|
|
print "Skipping unknown entry: `$_'\n";
|
|
}
|
|
close ULP;
|
|
}
|
|
|
|
|
|
# Clean up a floating point number
|
|
sub clean_up_number {
|
|
my ($number) = @_;
|
|
|
|
# Remove trailing zeros after the decimal point
|
|
if ($number =~ /\./) {
|
|
$number =~ s/0+$//;
|
|
$number =~ s/\.$//;
|
|
}
|
|
return $number;
|
|
}
|
|
|
|
# Output a file which can be read in as ulps file.
|
|
sub print_ulps_file {
|
|
my ($file) = @_;
|
|
my ($test, $type, $float, $eps, $fct, $last_fct);
|
|
|
|
$last_fct = '';
|
|
open NEWULP, ">$file" or die ("Can't open $file: $!");
|
|
print NEWULP "# Begin of automatic generation\n";
|
|
print NEWULP "\n# Maximal error of functions:\n";
|
|
|
|
foreach $fct (sort keys %results) {
|
|
foreach $type ('real', 'imag', 'normal') {
|
|
if (exists $results{$fct}{$type}) {
|
|
if ($type eq 'normal') {
|
|
print NEWULP "Function: \"$fct\":\n";
|
|
} elsif ($type eq 'real') {
|
|
print NEWULP "Function: Real part of \"$fct\":\n";
|
|
} elsif ($type eq 'imag') {
|
|
print NEWULP "Function: Imaginary part of \"$fct\":\n";
|
|
}
|
|
foreach $float (@all_floats) {
|
|
if (exists $results{$fct}{$type}{'ulp'}{$float}) {
|
|
print NEWULP "$float: ",
|
|
&clean_up_number ($results{$fct}{$type}{'ulp'}{$float}),
|
|
"\n";
|
|
}
|
|
}
|
|
print NEWULP "\n";
|
|
}
|
|
}
|
|
}
|
|
print NEWULP "# end of automatic generation\n";
|
|
close NEWULP;
|
|
}
|
|
|
|
sub get_ulps {
|
|
my ($test, $type, $float) = @_;
|
|
|
|
return (exists $results{$test}{$type}{'ulp'}{$float}
|
|
? $results{$test}{$type}{'ulp'}{$float} : "0");
|
|
}
|
|
|
|
# Return the ulps value for a single test.
|
|
sub get_all_ulps_for_test {
|
|
my ($test, $type) = @_;
|
|
my ($ldouble, $double, $float, $ildouble, $idouble, $ifloat);
|
|
my ($ulps_str);
|
|
|
|
if (exists $results{$test}{'has_ulps'}) {
|
|
foreach $float (@all_floats) {
|
|
$ulps_str .= &get_ulps ($test, $type, $float) . ", ";
|
|
}
|
|
return "{" . substr ($ulps_str, 0, -2) . "}";
|
|
} else {
|
|
die "get_all_ulps_for_test called for \"$test\" with no ulps\n";
|
|
}
|
|
}
|
|
|
|
# Print include file
|
|
sub output_ulps {
|
|
my ($file, $ulps_filename) = @_;
|
|
my ($i, $fct, $type, $ulp, $ulp_real, $ulp_imag);
|
|
my (%func_ulps, %func_real_ulps, %func_imag_ulps);
|
|
|
|
open ULP, ">$file" or die ("Can't open $file: $!");
|
|
|
|
print ULP "/* This file is automatically generated\n";
|
|
print ULP " from $ulps_filename with gen-libm-test.pl.\n";
|
|
print ULP " Don't change it - change instead the master files. */\n\n";
|
|
|
|
print ULP "struct ulp_data\n";
|
|
print ULP "{\n";
|
|
print ULP " const char *name;\n";
|
|
print ULP " FLOAT max_ulp[" . @all_floats . "];\n";
|
|
print ULP "};\n\n";
|
|
|
|
for ($i = 0; $i <= $#all_floats; $i++) {
|
|
$type = $all_floats[$i];
|
|
print ULP "#define ULP_";
|
|
if ($type =~ /^i/) {
|
|
print ULP "I_";
|
|
$type = substr $type, 1;
|
|
}
|
|
print ULP "$all_floats_pfx{$type} $i\n";
|
|
}
|
|
|
|
foreach $fct (keys %results) {
|
|
$type = $results{$fct}{'type'};
|
|
if ($type eq 'normal') {
|
|
$ulp = get_all_ulps_for_test ($fct, 'normal');
|
|
} elsif ($type eq 'complex') {
|
|
$ulp_real = get_all_ulps_for_test ($fct, 'real');
|
|
$ulp_imag = get_all_ulps_for_test ($fct, 'imag');
|
|
} else {
|
|
die "unknown results ($fct) type $type\n";
|
|
}
|
|
if ($type eq 'normal') {
|
|
$func_ulps{$fct} = $ulp;
|
|
} else {
|
|
$func_real_ulps{$fct} = $ulp_real;
|
|
$func_imag_ulps{$fct} = $ulp_imag;
|
|
}
|
|
}
|
|
print ULP "\n/* Maximal error of functions. */\n";
|
|
print ULP "static const struct ulp_data func_ulps[] =\n {\n";
|
|
foreach $fct (sort keys %func_ulps) {
|
|
print ULP " { \"$fct\", $func_ulps{$fct} },\n";
|
|
}
|
|
print ULP " };\n";
|
|
print ULP "static const struct ulp_data func_real_ulps[] =\n {\n";
|
|
foreach $fct (sort keys %func_real_ulps) {
|
|
print ULP " { \"$fct\", $func_real_ulps{$fct} },\n";
|
|
}
|
|
print ULP " };\n";
|
|
print ULP "static const struct ulp_data func_imag_ulps[] =\n {\n";
|
|
foreach $fct (sort keys %func_imag_ulps) {
|
|
print ULP " { \"$fct\", $func_imag_ulps{$fct} },\n";
|
|
}
|
|
print ULP " };\n";
|
|
close ULP;
|
|
}
|
|
|
|
# Parse auto-libm-test-out.
|
|
sub parse_auto_input {
|
|
my ($file) = @_;
|
|
open AUTO, $file or die ("Can't open $file: $!");
|
|
while (<AUTO>) {
|
|
chop;
|
|
next if !/^= /;
|
|
s/^= //;
|
|
if (/^(\S+) (\S+) ([^:]*) : (.*)$/) {
|
|
$auto_tests{$1}{$2}{$3} = $4;
|
|
} else {
|
|
die ("bad automatic test line: $_\n");
|
|
}
|
|
}
|
|
close AUTO;
|
|
}
|