As recently discussed
<https://sourceware.org/ml/libc-alpha/2014-02/msg00670.html>, it
doesn't seem particularly useful for libm-test-ulps files to contain
huge amounts of data on ulps for individual tests; just the global
maximum observed ulps for each function, together with the
verification of exceptions, errno and special results such as
infinities and NaNs for each test, suffices to verify that a
function's behavior on the given test inputs is within the expected
accuracy. Removing this data reduces source tree churn caused by
updates to these files when libm tests are added, and reduces the
frequency with which testsuite additions actually need libm-test-ulps
changes at all.
Accordingly, this patch removes that data, so that individual tests
get checked against the global bounds for the given function and only
generate an error if those are exceeded. Tested x86_64 (including
verifying that if an ulps value is artificially reduced, the tests do
indeed fail as they should and "make regen-ulps" generates the
expected changes).
* math/libm-test.inc (struct ulp_data): Don't refer to ulps for
individual tests in comment.
(libm-test-ulps.h): Don't refer to test_ulps in #include comment.
(prev_max_error): New variable.
(prev_real_max_error): Likewise.
(prev_imag_max_error): Likewise.
(compare_ulp_data): Don't refer to test names in comment.
(find_test_ulps): Remove function.
(find_function_ulps): Likewise.
(find_complex_function_ulps): Likewise.
(init_max_error): Take function name as argument. Look up ulps
for that function.
(print_ulps): Remove function.
(print_max_error): Use prev_max_error instead of calling
find_function_ulps.
(print_complex_max_error): Use prev_real_max_error and
prev_imag_max_error instead of calling find_complex_function_ulps.
(check_float_internal): Take max_ulp parameter instead of calling
find_test_ulps. Don't call print_ulps.
(check_float): Update call to check_float_internal.
(check_complex): Update calls to check_float_internal.
(START): Pass argument to init_max_error.
* math/gen-libm-test.pl (%results): Don't include "kind"
information.
(parse_ulps): Don't handle ulps of individual tests.
(print_ulps_file): Likewise.
(output_ulps): Likewise.
* math/README.libm-test: Update.
* manual/libm-err-tab.pl (parse_ulps): Don't handle ulps of
individual tests.
* sysdeps/aarch64/libm-test-ulps: Remove individual test ulps.
* sysdeps/alpha/fpu/libm-test-ulps: Likewise.
* sysdeps/arm/libm-test-ulps: Likewise.
* sysdeps/i386/fpu/libm-test-ulps: Likewise.
* sysdeps/ia64/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise.
* sysdeps/m68k/m680x0/fpu/libm-test-ulps: Likewise.
* sysdeps/microblaze/libm-test-ulps: Likewise.
* sysdeps/mips/mips32/libm-test-ulps: Likewise.
* sysdeps/mips/mips64/libm-test-ulps: Likewise.
* sysdeps/powerpc/fpu/libm-test-ulps: Likewise.
* sysdeps/powerpc/nofpu/libm-test-ulps: Likewise.
* sysdeps/s390/fpu/libm-test-ulps: Likewise.
* sysdeps/sh/libm-test-ulps: Likewise.
* sysdeps/sparc/fpu/libm-test-ulps: Likewise.
* sysdeps/tile/libm-test-ulps: Likewise.
* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
* sysdeps/hppa/fpu/libm-test-ulps: Remove individual test ulps.
math/gen-libm-test.pl has code to beautify names of various constants,
transforming the source form in libm-test.inc into the version
appearing in test names in libm-test-ulps files.
This has become decreasingly relevant over time for the M_* constants,
first as I changed the test names so only the arguments and not the
expected results appeared in them, then as tests have moved to
auto-libm-test-* so that automatically generated hex float constants
get used instead of M_* in test inputs.
This patch removes the beautification for all M_* constants. Tested
x86_64 and x86 and ulps updated accordingly. Even the one case where
this affected the name in the ulps files will disappear once complex
function tests are moved to auto-libm-test-*.
* math/gen-libm-test.pl (%beautify): Remove M_* constants.
* sysdeps/i386/fpu/libm-test-ulps: Update.
* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2006-06-08 Joseph Myers <jsm28@gcc.gnu.org>
[BZ #2832]
* math/gen-libm-test.pl (clean_up_number): Do not remove trailing
0s from integers.
2006-08-13 Ulrich Drepper <drepper@redhat.com>
[BZ #2987]
* sysdeps/unix/sysv/linux/clock_settime.c: Add code to use syscall
for CPU clocks.
* sysdeps/unix/clock_settime.c: Add support for platform-specific
setting of CPU clocks.
* math/gen-libm-test.pl (parse_args): Take function name for pretty
output as an argument.
(generate_testfile): Pass it the name given in the START macro.
[BZ #2466]
* math/libm-test.inc (llrint_test, llround_test): Fix last change to
protect large-precision cases with [LDBL_MANT_DIG > 100].
(llrint_test_tonearest, llrint_test_towardzero): Likewise.
(llrint_test_downward, llrint_test_upward): Likewise.
2006-03-15 Steven Munroe <sjmunroe@us.ibm.com>
Alan Modra <amodra@bigpond.net.au>
[BZ #2466]
* math/libm-test.inc (llrint_test, llround_test) [TEST_LDOUBLE]:
Add new test values.
(llrint_test_tonearest, llrint_test_towardzero, llrint_test_downward,
llrint_test_upward): New functions.
(main): Call them.
* sysdeps/ieee754/ldbl-128ibm/s_llrintl.c (__llrintl): Handle
rounding that spans doubles in IBM long double format.
* sysdeps/ieee754/ldbl-128ibm/s_llroundl.c (__llroundl): Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_llrintl.S: Removed.
* sysdeps/powerpc/powerpc64/fpu/s_llroundl.S: Removed.
* sysdeps/powerpc/powerpc64/fpu/s_lrintl.S: Removed.
* sysdeps/powerpc/powerpc64/fpu/s_lroundl.S: Removed.
2006-03-16 Roland McGrath <roland@redhat.com>
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
1999-10-25 Thorsten Kukuk <kukuk@suse.de>
* md5-crypt/md5.h: Remove prototypes for public interface. md5 is
used only internal.
* md5-crypt/md5-crypt.c: Use internal names for md5 functions,
remove weak alias for public names.
* md5-crypt/md5.c: Remove weak aliase.
1999-10-25 Andreas Jaeger <aj@suse.de>
* math/README.libm-test: New file, documents libm-test.inc.
1999-10-25 Andreas Jaeger <aj@suse.de>
* math/gen-libm-test.pl: Only generate a new ulps file when -n is
given.
(print_ulps_file): Fix loops to not read @tests and @functions
since those are not initialized with -n now.
(parse_ulps): Set $results{..}{"kind"}.
1999-10-20 Andreas Jaeger <aj@suse.de>
* math/libm-test.inc: Rewrite to allow different deltas for real
and imaginary part of complex functions.
* math/gen-libm-test.pl: Likewise.
1999-10-19 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/i386/fpu/s_nextafterl.c: Add __nextafterl and nextafterl
aliases.
* sysdeps/ieee754/flt-32/e_lgammaf_r.c: Don't handle -Inf special.
* sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r): Check
for -Inf and return NaN.
* math/gen-libm-test.pl: Fix program name in help message.
* math/libm-test.inc (check_complex): It's Imaginary, not Complex.
* math/libm-test.inc (gamma_test): Result of gamma(-inf) is +inf.
* sysdeps/i386/Implies: Correct order of libm directories.
1999-10-18 Andreas Jaeger <aj@suse.de>
Added improved math testsuite:
* math/libm-test.inc: New file, contains all tests from
libm-test.c but in a different form.
* math/libm-test.c: Removed.
* sysdeps/generic/libm-test-ulps: New file: Fallback ulps file.
* math/gen-libm-test.pl: New file: Preprocessor.
* math/test-double.c: Adopted to new testsuite.
* math/test-idouble.c: Likewise.
* math/test-float.c: Likewise.
* math/test-ifloat.c: Likewise.
* math/test-ldouble.c: Likewise.
* math/test-ildoubl.c: Likewise.
* math/Makefile: Added rules to generate new suite.