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d4cf133100
When bootstrapping float128, this exposed a number of areas where the L suffix is incorrectly applied to simple expressions when it should be applied to each constant in the expression. In order to stave off more macros in libm-test.inc, apply_lit is made slightly more intelligent. It will now split expressions based on space characters, and attempt to apply LIT() to each token. Having done this, there are numerous spacing issues within libm-test.inc which have been fixed. The above is problematic when the L real suffix is not the most expressive modifier, and the compiler complains (i.e ppc64) or silently truncates a value (i.e ppc64).
820 lines
23 KiB
Perl
Executable File
820 lines
23 KiB
Perl
Executable File
#!/usr/bin/perl -w
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# Copyright (C) 1999-2016 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 $auto_input);
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use vars qw (%results);
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use vars qw (%beautify @all_floats %all_floats_pfx);
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use vars qw ($output_dir $ulps_file $srcdir);
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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', 'idouble',
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'ifloat', '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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);
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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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# u: ulps-file
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# h: help
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# o: output-directory
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# n: generate new ulps file
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use vars qw($opt_u $opt_h $opt_o $opt_n);
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getopts('u:o:nh');
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$ulps_file = 'libm-test-ulps';
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$output_dir = '';
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($srcdir = $0) =~ s{[^/]*$}{};
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if ($opt_h) {
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print "Usage: gen-libm-test.pl [OPTIONS]\n";
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print " -h print this help, then exit\n";
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print " -o DIR directory where generated files will be placed\n";
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print " -n only generate sorted file NewUlps from libm-test-ulps\n";
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print " -u FILE input file with ulps\n";
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exit 0;
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}
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$ulps_file = $opt_u if ($opt_u);
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$output_dir = $opt_o if ($opt_o);
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$input = "libm-test.inc";
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$auto_input = "${srcdir}auto-libm-test-out";
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$output = "${output_dir}libm-test.c";
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&parse_ulps ($ulps_file);
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&parse_auto_input ($auto_input);
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&generate_testfile ($input, $output) unless ($opt_n);
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&output_ulps ("${output_dir}libm-test-ulps.h", $ulps_file) unless ($opt_n);
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&print_ulps_file ("${output_dir}NewUlps") if ($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, $rm);
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my (@plus_oflow, @minus_oflow, @plus_uflow, @minus_uflow);
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my (@errno_plus_oflow, @errno_minus_oflow);
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my (@errno_plus_uflow, @errno_minus_uflow);
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my ($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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$comma = ', ';
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}
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# FLOAT, int, long int, long long int
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if ($descr[$i] =~ /f|j|i|l|L/) {
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$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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# &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/) {
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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[$#args_res] =~ /EXCEPTION|ERRNO|IGNORE_ZERO_INF_SIGN|TEST_NAN_SIGN|NO_TEST_INLINE|XFAIL_TEST/);
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@start_rm = ( 0, 0, 0, 0 );
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} elsif ($#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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$cline = "{ \"$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[$i] =~ /f|j|i|l|L/) {
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if ($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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$current_arg++;
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next;
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}
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# &FLOAT, &int
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if ($descr[$i] =~ /F|I/) {
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next;
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}
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# complex
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if ($descr[$i] eq 'c') {
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$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 //,$descr_res;
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@plus_oflow = qw(max_value plus_infty max_value plus_infty);
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@minus_oflow = qw(minus_infty minus_infty -max_value -max_value);
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@plus_uflow = qw(plus_zero plus_zero plus_zero min_subnorm_value);
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@minus_uflow = qw(-min_subnorm_value minus_zero minus_zero minus_zero);
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@errno_plus_oflow = qw(0 ERRNO_ERANGE 0 ERRNO_ERANGE);
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@errno_minus_oflow = qw(ERRNO_ERANGE ERRNO_ERANGE 0 0);
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@errno_plus_uflow = qw(ERRNO_ERANGE ERRNO_ERANGE ERRNO_ERANGE 0);
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@errno_minus_uflow = qw(0 ERRNO_ERANGE ERRNO_ERANGE ERRNO_ERANGE);
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for ($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/ ) {
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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 .= ", { $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) = @_;
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open INPUT, $input or die ("Can't open $input: $!");
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open OUTPUT, ">$output" or die ("Can't open $output: $!");
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# Replace the special macros
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while (<INPUT>) {
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# AUTO_TESTS (function),
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if (/^\s*AUTO_TESTS_/) {
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my ($descr, $func, @modes, $auto_test, $num_auto_tests);
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my (@rm_tests, $rm, $i);
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@modes = qw(downward tonearest towardzero upward);
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($descr, $func) = ($_ =~ /AUTO_TESTS_(\w+)\s*\((\w+)\)/);
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|
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;
|
|
}
|