/
number.t
275 lines (219 loc) · 8.39 KB
/
number.t
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#! perl
# Copyright (C) 2001-2012, Parrot Foundation.
use strict;
use warnings;
use lib qw( . lib ../lib ../../lib );
use Test::More;
use Parrot::Config;
use Parrot::BuildUtil;
use t::native_pbc::Test;
use Parrot::Test tests => 11;
# Testmatrix for coverage overview (GH #394)
# Testing:
# $ for f in float double "long double" __float128; do make -s clean; perl Configure.pl --floatval="$f" >/dev/null && m -s parrot && echo $f && prove -v t/native_pbc/number.t; done
# TODO: 4_16PPC_be=>8_4_le, 4_4_le=>8_4_le, *=>8_10_le
# float conversion src: left-side (pbc) to dest: upper-side (platform)
# 1: tested ok, 0: fails (skip), ?: not yet tested (todo)
# S4: skip on 4 byte platform, S8: skip on 8 byte (64bit)
# T4: skip 4 byte test, T8: skip 8 byte test (64bit) (number_8_xx_xe.pbc)
# Note that the corresponding cvt_num* functions in F<pf_items.c> have odd names.
# The _le there is for reading.
# 8_16_le=>4_8_le fails, but 8_16_le=>8_8_le passes
my $testmatrix = <<EOF;
8_le 10_le 16_le 8_be 16_be 4_le 4_be 16PPC_be
8_le 1 1 0 1 ? 1 ? 1
10_le 1 1 0 ? ? 1 ? 0
16_le S4 0 0 ? ? 1 ? 0
8_be 1 1 0 1 1 1 ? 1
16_be ? ? ? ? 1 ? ? ?
4_le 1 1 0 ? ? S8 ? 1
4_be 1 1 0 ? ? 1 ? ?
16PPC_be 1 1 0 1 ? 1 ? 1
EOF
my $arch = t::native_pbc::Test::num_arch();
# %todo and %skip lists of tests for your architecture.
# e.g. for arch 8_le => 8_be => todo (4_8_le, 8_8_le )
sub generate_skip_list {
my $arch = shift;
my $check = shift;
my %skip;
my @lines = split /\n/, $testmatrix;
my @dest = split /\s+/, shift @lines;
shift @dest unless $dest[0];
my $i = 0;
my %cols = map { $_ => $i++ } @dest;
my ($byte, $sarch) = $arch =~ m/^(\d)_(\d.+)$/;
my $col = $cols{$sarch}; # the column for our arch
for my $s (@lines) {
my @s = split /\s+/, $s;
my $pbc = shift @s;
if ($s[$col] eq $check) {
$skip{"4_".$pbc}++;
$skip{"8_".$pbc}++;
}
if (my ($b) = $s[$col] =~ /S(.)/) {
if ($byte == $b) {
$skip{"4_".$pbc}++;
$skip{"8_".$pbc}++;
}
}
if (my ($b) = $s[$col] =~ /T(.)/) {
$skip{$b."_".$pbc}++;
}
}
\%skip
}
my $todo = generate_skip_list($arch, '?');
my $skip = generate_skip_list($arch, '0');
my $output = << 'END_OUTPUT';
0
-0
-1
1
4
16
64
256
1024
4096
16384
-65536
-262144
-10.48576
4194304
16777216
67108864
268435456
1073741824
4294967296
17179869184
68719476736
274877906944
1099511627776
4.398046511104
17592186044416
70368744177664
281474976710656
END_OUTPUT
sub my_precision {
my ($myprec) = $PConfig{floatvalfmt} =~ m/(\d+)/;
$myprec = '41' if !$myprec and $PConfig{floatvalfmt} =~ m/%Q/;
return $myprec;
}
sub min_precision {
my $id = shift;
my $myprec = shift;
my ($theirtype) = $id =~ m/^\d_(\d.*)_/;
# See various LDBL_DIG
my $prec = {4 => 6, 8 => 15, 10 => 16, '16ppc' => 31, 16 => 41};
my $theirprec = $prec->{$theirtype}; $theirprec = 7 unless $theirprec;
return $myprec < $theirprec ? $myprec : $theirprec;
}
my $myprec = my_precision;
sub test_pbc_number {
my $id = shift;
my $desc = shift;
# required precision: 6 for float, 15 for double, ...
my $out = $output;
my $minprec = min_precision($id, $myprec);
# [GH #xxx] Looks like we cannot guarantee more then 13 digits
$minprec = 13 if $minprec > 13 and $id ne $arch;
test_native_pbc($id, "number", $out, $desc, $skip, $todo, $minprec);
}
# execute t/native_pbc/number_*.pbc
#
# any ordinary intel 386 linux, cygwin, mingw, MSWin32, ...
# floattype = 0 (interpreter's NUMVAL_SIZE = 8)
test_pbc_number('4_8_le', "little-endian 32 bit opcode_t, 4 byte intval, 8 byte double");
# floattype = 1 (interpreter's NUMVAL_SIZE = 12)
test_pbc_number('4_10_le', "i386 32 bit opcode_t, 4 byte intval, 80bit/12 byte long double");
# darwin/ppc:
# floattype = 0 (interpreter's NUMVAL_SIZE = 8)
test_pbc_number('4_8_be', "big-endian 32 bit opcode_t, 4 byte intval, 8 byte double");
# any ordinary 64-bit intel unix:
# floattype = 0 (interpreter's NUMVAL_SIZE = 8)
test_pbc_number('8_8_le', "little-endian 64 bit opcode_t, 8 byte intval, 8 byte double");
# x86_64 with floatval='long double'
# floattype = 1 (interpreter's NUMVAL_SIZE = 16)
test_pbc_number('8_10_le', "x86_64 64 bit opcode_t, 8 byte intval, 80bit/16 byte long double");
# x86_64 with floatval='__float128'
# floattype = 2 (interpreter's NUMVAL_SIZE = 16)
test_pbc_number('8_16_le', "little-endian 64 bit opcode_t, 8 byte intval, 16 byte __float128");
# PowerPC64 -m64
# floattype = 0 (interpreter's NUMVAL_SIZE = 8)
#test_pbc_number('8_8_be', "big-endian 64 bit opcode_t, 8 byte intval, 8 byte double");
# sparc64/__float128 --floatval="long double"
# floattype = 2 (interpreter's NUMVAL_SIZE = 8)
#test_pbc_number('8_16_be', "big-endian 64 bit opcode_t, 8 byte intval, 16 byte __float128");
# ppc -m32 with double and macports gcc46 __float128
test_pbc_number('4_8_be', "big-endian 32 bit opcode_t, 4 byte intval, 8 byte double");
test_pbc_number('4_16_be', "big-endian 32 bit opcode_t, 4 byte intval, 16 byte __float128");
# i386 --floatval=float
# floattype = 3 (interpreter's NUMVAL_SIZE = 4)
test_pbc_number('4_4_le', "little-endian 32 bit opcode_t, 4 byte intval, 4 byte single float");
# ppc --floatval=float
# floattype = 3 (interpreter's NUMVAL_SIZE = 4)
test_pbc_number('4_4_be', "big-endian 32 bit opcode_t, 4 byte intval, 4 byte single float");
# ppc --floatval="long double" -mlong-double-128
# floattype = 4 (interpreter's NUMVAL_SIZE = 16)
test_pbc_number('4_16PPC_be', "big-endian 32 bit opcode_t, 4 byte intval, 16 byte double double");
=head1 NAME
t/native_pbc/number.t - Native Floating-Point Numbers
=head1 SYNOPSIS
% prove t/native_pbc/number.t
=head1 DESCRIPTION
Tests word-size/float-type/endian-ness for different architectures.
These tests usually only work on updated native pbc test files.
See F<tools/dev/mk_native_pbc> to create the platform-specific
native pbcs on 4 different machines.
=head1 PLATFORMS
The id consists of ptrsize in byte, numvalsize in bytes and le/be for
little/big-endian.
4_8_le: i386 32 bit opcode_t, 4 byte intval, 8 byte double
(linux-gcc-i386, freebsd-gcc, cygwin, ...)
4_8_be: PPC BE 32 bit opcode_t, 4 byte intval, 8 byte double
(darwin-ppc or sparc32)
8_8_le: x86_64 64 bit opcode_t, 8 byte intval, 8 byte double
(linux-gcc-x86_64 resp. amd64, solaris-cc-64int)
8_8_be: big-endian 64 bit opcode_t, 8 byte intval, 8 byte double
(Sparc64/Solaris, MIPS irix or similar)
4_10_le: i386 32 bit opcode_t, 4 byte intval, 12 byte long double
(i386 with --floatval="long double")
8_10_le: x86_64 64 bit opcode_t, 8 byte intval, 16 byte long double
(--floatval="long double")
8_16_le: x86_64 64 bit opcode_t, 8 byte intval, 16 byte long double
(--floatval="__float128")
8_16_be: big-endian 64 bit opcode_t, 8 byte intval, 16 byte long double
(Sparc64/Solaris --floatval="long double")
8_16PPC_be: powerpc 64 bit opcode_t, 8 byte intval, 16 byte double double
(--floatval="long double")
4_4_le: i386 32 bit opcode_t, 4 byte intval, 4 byte single float
(i386 --floatval="float")
4_4_be: big-endian 32 bit opcode_t, 4 byte intval, 4 byte single float
(darwin or debian/ppc with --floatval="float")
=cut
=begin comment
# These are PBC files generated from F<t/native_pbc/testdata/number.pasm> with
# different architectures.
# If your wordsize/floattype/endianess is not covered here
# please add it:
$ ./parrot -o n.pbc t/native_pbc/testdata/number.pasm
$ make pbc_dump
$ ./pbc_dump -h n.pbc
$ mv n.pbc t/native_pbc/number_$(id).pbc
# then
# - increase number of tests
# - include the pbc_dump header info for reference
# - put the file into MANIFEST
# - then add the file with "git add" and commit it
# thanks -leo and reini
On test failures please add the output of
$ ./pbc_dump -h t/native_pbc/number_${id}.pbc
into your report. We need your wordsize/floattype/endianness.
=cut
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