Following the recent discussion of using Python instead of Perl and
Awk for glibc build / test, this patch replaces gen-libm-test.pl with
a new gen-libm-test.py script. This script should work with all
Python versions supported by glibc (tested by hand with Python 2.7,
tested in the build system with Python 3.5; configure prefers Python 3
if available).
This script is designed to give identical output to gen-libm-test.pl
for ease of verification of the change, except for generated comments
referring to .py instead of .pl. (That is, identical for actual
inputs passed to the script, not necessarily for all possible input;
for example, this version more precisely follows the C standard syntax
for floating-point constants when deciding when to add LIT macro
calls.) In one place a comment notes that the generation of
NON_FINITE flags is replicating a bug in the Perl script to assist in
such comparisons (with the expectation that this bug can then be
separately fixed in the Python script later).
Tested for x86_64, including comparison of generated files (and hand
testing of the case of generating a sorted libm-test-ulps file, which
isn't covered by normal "make check").
I'd expect to follow this up by extending the new script to produce
the ulps tables for the manual as well (replacing
manual/libm-err-tab.pl, so that then we just have one ulps file
parser) - at which point the manual build would depend on both Perl
and Python (eliminating the Perl dependency would require someone to
rewrite summary.pl in Python, and that would only eliminate the
*direct* Perl dependency; current makeinfo is written in Perl so there
would still be an indirect dependency).
I think install.texi is more or less equally out-of-date regarding
Perl and Python uses before and after this patch, so I don't think
this patch depends on my patch
<https://sourceware.org/ml/libc-alpha/2018-08/msg00133.html> to update
install.texi regarding such uses (pending review).
* math/gen-libm-test.py: New file.
* math/gen-libm-test.pl: Remove.
* math/Makefile [$(PERL) != no]: Change condition to [PYTHON].
($(objpfx)libm-test-ulps.h): Use gen-libm-test.py instead of
gen-libm-test.pl.
($(libm-test-c-noauto-obj)): Likewise.
($(libm-test-c-auto-obj)): Likewise.
($(libm-test-c-narrow-obj)): Likewise.
(regen-ulps): Likewise.
* math/README.libm-test: Update references to gen-libm-test.pl.
* math/libm-test-driver.c (struct test_fj_f_data): Update comment
referencing gen-libm-test.pl.
* math/libm-test-nexttoward.inc (nexttoward_test_data): Likewise.
* math/libm-test-support.c: Likewise.
* math/libm-test-support.h: Likewise.
* sysdeps/generic/libm-test-ulps: Likewise.
Testing narrowing functions for x86_64 with GCC 6 showed up a further
testsuite fix needed: there is no _Float128 sNaN support before GCC 7
on x86_64 / x86, and the existing tests of SNAN_TESTS only checked it
for the return type, not for the argument type. This patch fixes the
code to check SNAN_TESTS (ARG_FLOAT) as well (in a variable set in
libm-test-driver.c, since libm-test-support.c is compiled only once
for each choice of FLOAT).
Tested for x86_64 and x86 with GCC 6 in conjunction with the main
patch adding narrowing add functions.
* math/libm-test-driver.c (snan_tests_arg): New variable.
* math/libm-test-support.h (snan_tests_arg): New declaration.
* math/libm-test-support.c (enable_test): Check snan_tests_arg.
This patch continues preparations for adding TS 18661-1 narrowing libm
functions by adding the required testsuite infrastructure to test such
functions through the libm-test infrastructure.
That infrastructure is based around testing for a single type, FLOAT.
For the narrowing functions, FLOAT, the "main" type for testing, is
the function return type; the argument type is ARG_FLOAT. This is
consistent with how the code built once for each type,
libm-test-support.c, depends on FLOAT for such things as calculating
ulps errors in results but can already handle different argument types
(pointers, integers, long double for nexttoward).
Makefile machinery is added to handle building tests for all pairs of
types for which there are narrowing functions (as with non-narrowing
functions, aliases are tested just the same as the functions they
alias). gen-auto-libm-tests gains a --narrow option for building
outputs for narrowing functions (so narrowing sqrt and fma will share
the same inputs as non-narrowing, but gen-auto-libm-tests will be run
with and without that option to generate different output files). In
the narrowing case, the auto-libm-test-out-narrow-* files include
annotations for each test about what properties ARG_FLOAT must have to
be able to represent all the inputs for that test; those annotations
result in calls to the TEST_COND_arg_fmt macro.
gen-libm-test.pl has some minor updates to handle narrowing tests (for
example, arguments in such tests must be surrounded by ARG_LIT calls
instead of LIT calls). Various new macros are added to the C test
support code (for example, sNaN initializers need to be properly
typed, so arg_snan_value is added; other such arg_* macros are added
as it seems cleanest to do so, though some are not strictly required).
Special-casing of the ibm128 format to allow for its limitations is
adjusted to handle it as the argument format as well as as the result
format; thus, the tests of the new functions allow nonzero ulps only
in the case where ibm128 is the argument format, as otherwise the
functions correspond to fully-defined IEEE operations. The ulps in
question appear as e.g. 'Function: "add_ldouble"' in libm-test-ulps
(with 1ulp errors then listed for double and float for that function
in powerpc); no support is added to generate corresponding faddl /
daddl ulps listings in the ulps table in the manual.
For the previous patch, I noted the need to avoid spurious macro
expansions of identifiers such as "add". A test test-narrow-macros.c
is added to verify such macro expansions are successfully avoided, and
there is also a -mlong-double-64 version of that test for ldbl-opt.
This test is set up to cover the full set of relevant identifiers from
the start rather than adding functions one at a time as each function
group is added.
Tested for x86_64 (this patch in isolation, as well as testing for
various configurations in conjunction with the actual addition of
"add" functions).
* math/Makefile (test-type-pairs): New variable.
(test-type-pairs-f64xf128-yes): Likewise.
(tests): Add test-narrow-macros.
(libm-test-funcs-narrow): New variable.
(libm-test-c-narrow): Likewise.
(generated): Add $(libm-test-c-narrow).
(libm-tests-base-narrow): New variable.
(libm-tests-narrow): Likewise.
(libm-tests): Add $(libm-tests-narrow).
(libm-tests-for-type): Handle $(libm-tests-narrow).
(libm-test-c-narrow-obj): New variable.
($(libm-test-c-narrow-obj)): New rule.
($(foreach t,$(libm-tests-narrow),$(objpfx)$(t).c)): Likewise.
($(foreach f,$(libm-test-funcs-narrow),$(objpfx)$(o)-$(f).o)): Use
$(o-iterator) to set dependencies and CFLAGS.
* math/gen-auto-libm-tests.c: Document use for narrowing
functions.
(output_for_one_input_case): Take argument NARROW.
(generate_output): Likewise. Update call to
output_for_one_input_case.
(main): Take --narrow option. Update call to generate_output.
* math/gen-libm-test.pl (_apply_lit): Take macro name as argument.
(apply_lit): Update call to _apply_lit.
(apply_arglit): New function.
(parse_args): Handle "a" arguments.
(parse_auto_input): Handle format names using ":".
* math/README.libm-test: Document "a" parameter type.
* math/libm-test-support.h (ARG_TYPE_MIN): New macro.
(ARG_TYPE_TRUE_MIN): Likewise.
(ARG_TYPE_MAX): Likwise.
(ARG_MIN_EXP): Likewise.
(ARG_MAX_EXP): Likewise.
(ARG_MANT_DIG): Likewise.
(TEST_COND_arg_ibm128): Likewise.
(TEST_COND_ibm128_libgcc): Define conditional on [ARG_FLOAT].
(TEST_COND_arg_fmt): New macro.
(init_max_error): Update prototype.
* math/libm-test-support.c (test_ibm128): New variable.
(init_max_error): Take argument testing_ibm128 and set test_ibm128
instead of using [TEST_COND_ibm128] conditional.
(test_exceptions): Use test_ibm128 instead of TEST_COND_ibm128.
* math/libm-test-driver.c (STR_ARG_FLOAT): New macro.
[TEST_NARROW] (TEST_MSG): New definition.
(arg_plus_zero): New macro.
(arg_minus_zero): Likewise.
(arg_plus_infty): Likewise.
(arg_minus_infty): Likewise.
(arg_qnan_value_pl): Likewise.
(arg_qnan_value): Likewise.
(arg_snan_value_pl): Likewise.
(arg_snan_value): Likewise.
(arg_max_value): Likewise.
(arg_min_value): Likewise.
(arg_min_subnorm_value): Likewise.
[ARG_FLOAT] (struct test_aa_f_data): New struct type.
(RUN_TEST_LOOP_aa_f): New macro.
(TEST_SUFF): New macro.
(TEST_SUFF_STR): Likewise.
[!TEST_MATHVEC] (VEC_SUFF): Don't define.
(TEST_COND_any_ibm128): New macro.
(START): Use TEST_SUFF and TEST_SUFF_STR in initializer for
this_func. Update call to init_max_error.
* math/test-double.h (FUNC_NARROW_PREFIX): New macro.
* math/test-float.h (FUNC_NARROW_PREFIX): Likewise.
* math/test-float128.h (FUNC_NARROW_PREFIX): Likewise.
* math/test-float32.h (FUNC_NARROW_PREFIX): Likewise.
* math/test-float32x.h (FUNC_NARROW_PREFIX): Likewise.
* math/test-float64.h (FUNC_NARROW_PREFIX): Likewise.
* math/test-float64x.h (FUNC_NARROW_PREFIX): Likewise.
* math/test-math-scalar.h (TEST_NARROW): Likewise.
* math/test-math-vector.h (TEST_NARROW): Likewise.
* math/test-arg-double.h: New file.
* math/test-arg-float128.h: Likewise.
* math/test-arg-float32x.h: Likewise.
* math/test-arg-float64.h: Likewise.
* math/test-arg-float64x.h: Likewise.
* math/test-arg-ldouble.h: Likewise.
* math/test-math-narrow.h: Likewise.
* math/test-narrow-macros.c: Likewise.
* sysdeps/ieee754/ldbl-opt/test-narrow-macros-ldbl-64.c: Likewise.
* sysdeps/ieee754/ldbl-opt/Makefile (tests): Add
test-narrow-macros-ldbl-64.
(CFLAGS-test-narrow-macros-ldbl-64.c): New variable.
This patch enables float128 support for ia64, so that all the
configurations where GCC supports _Float128 / __float128 as an
ABI-distinct type now have glibc support as well. bits/floatn.h
declares the support to be available for GCC 4.4 and later, which is
when the libgcc support was added. The removal of
sysdeps/ia64/fpu/k_rem_pio2.c is because the generic k_rem_pio2.c
defines a function required by the float128 code.
Tested (compilation only) with build-many-glibcs.py for ia64 (GCC 6
and GCC 7).
Given how long it is since libm-test-ulps has been updated for ia64, I
think truncating the file and regenerating it from scratch would be a
good idea when doing a regeneration to add float128 ulps. I expect
various ia64 libm issues (at least some already filed in Bugzilla) to
result in test failures even after ulps regeneration, but hopefully
the float128 code will pass tests as it's the same as used on other
architectures.
* sysdeps/ia64/Implies: Add ieee754/float128.
* sysdeps/ia64/bits/floatn.h: New file.
* sysdeps/ia64/float128-abi.h: Likewise.
* manual/math.texi (Mathematics): Document support for _Float128
on ia64.
* sysdeps/ia64/Makefile [$(subdir) = math] (CPPFLAGS): Append to
Makefile variable.
* sysdeps/ia64/fpu/e_sqrtf128.c: New file.
* sysdeps/ia64/fpu/k_rem_pio2.c: Remove file.
* sysdeps/ia64/fpu/sfp-machine.h: New file. Based on libgcc.
* sysdeps/ia64/math-tests.h: New file.
* math/libm-test-support.h (XFAIL_FLOAT128_PAYLOAD): Also define
based on TEST_COND_binary128 for [__ia64__].
* sysdeps/unix/sysv/linux/ia64/libc.abilist: Update.
* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise,
This patch enables float128 support for x86_64 and x86. All GCC
versions that can build glibc provide the required support, but since
GCC 6 and before don't provide __builtin_nanq / __builtin_nansq, sNaN
tests and some tests of NaN payloads need to be disabled with such
compilers (this does not affect the generated glibc binaries at all,
just the tests). bits/floatn.h declares float128 support to be
available for GCC versions that provide the required libgcc support
(4.3 for x86_64, 4.4 for i386 GNU/Linux, 4.5 for i386 GNU/Hurd);
compilation-only support was present some time before then, but not
really useful without the libgcc functions.
fenv_private.h needed updating to avoid trying to put _Float128 values
in registers. I make no assertion of optimality of the
math_opt_barrier / math_force_eval definitions for this case; they are
simply intended to be sufficient to work correctly.
Tested for x86_64 and x86, with GCC 7 and GCC 6. (Testing for x32 was
compilation tests only with build-many-glibcs.py to verify the ABI
baseline updates. I have not done any testing for Hurd, although the
float128 support is enabled there as for GNU/Linux.)
* sysdeps/i386/Implies: Add ieee754/float128.
* sysdeps/x86_64/Implies: Likewise.
* sysdeps/x86/bits/floatn.h: New file.
* sysdeps/x86/float128-abi.h: Likewise.
* manual/math.texi (Mathematics): Document support for _Float128
on x86_64 and x86.
* sysdeps/i386/fpu/fenv_private.h: Include <bits/floatn.h>.
(math_opt_barrier): Do not put _Float128 values in floating-point
registers.
(math_force_eval): Likewise.
[__x86_64__] (SET_RESTORE_ROUNDF128): New macro.
* sysdeps/x86/fpu/Makefile [$(subdir) = math] (CPPFLAGS): Append
to Makefile variable.
* sysdeps/x86/fpu/e_sqrtf128.c: New file.
* sysdeps/x86/fpu/sfp-machine.h: Likewise. Based on libgcc.
* sysdeps/x86/math-tests.h: New file.
* math/libm-test-support.h (XFAIL_FLOAT128_PAYLOAD): New macro.
* math/libm-test-getpayload.inc (getpayload_test_data): Use
XFAIL_FLOAT128_PAYLOAD.
* math/libm-test-setpayload.inc (setpayload_test_data): Likewise.
* math/libm-test-totalorder.inc (totalorder_test_data): Likewise.
* math/libm-test-totalordermag.inc (totalordermag_test_data):
Likewise.
* sysdeps/unix/sysv/linux/i386/libc.abilist: Update.
* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
* sysdeps/i386/fpu/libm-test-ulps: Likewise.
* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
This adds test support for float128, and lays some groundwork for future
_FloatN types.
* math/gen-libm-test.pl (@all_floats): Add ifloat128 and float128.
(%all_floats_pfx): Add macro prefix for float128 (FLT128).
* math/libm-test-exp10.inc (pow10_test): Do not test for _FloatN,
* math/libm-test-isfinite.inc (finite_test): Likewise.
* math/libm-test-lgamma.inc (gamma_test): Likewise.
* math/libm-test-nexttoward.inc (nexttoward_test): Likewise.
(nexttoward_test_data}: Likewise.
* math/libm-test-remainder.inc (drem_test): Likewise.
* math/libm-test-scalb.inc (scalb_test): Likewise.
(scalb_test_data): Likewise.
* math/libm-test-significand.inc (significand_test): Likewise.
(significand_test_data): Likewise.
* math/libm-test-support.c (check_complex): Replace __complex__
FLOAT with CFLOAT to get the support for old compiler.
* math/libm-test-support.h (check_complex): Likewise.
* math/test-double.h (CFLOAT, TEST_FLOATN): New macros.
* math/test-float.h (CFLOAT, TEST_FLOATN): Likewise.
* math/test-ldouble.h (CFLOAT, TEST_FLOATN): Likewise.
* math/test-float128.h: New file.
* math/test-math-floatn.h: New file.
This patch removes some libm-test-support.h macros for exceptions that
are no longer used. EXCEPTIONS_OK has been unused for some time. The
macros for underflow exceptions with some types only were used when
the results for complex inverse trig and hyperbolic functions were
manually maintained, but are no longer needed now the auto-libm-test
machinery is used to determine the correct result and exceptions for
every floating-point format and rounding mode.
Tested for x86_64.
* math/libm-test-support.h (EXCEPTIONS_OK): Remove macro.
(UNDERFLOW_EXCEPTION_FLOAT): Likewise.
(UNDERFLOW_EXCEPTION_OK_FLOAT): Likewise.
(UNDERFLOW_EXCEPTION_DOUBLE): Likewise.
(UNDERFLOW_EXCEPTION_OK_DOUBLE): Likewise.
(UNDERFLOW_EXCEPTION_LDOUBLE_IBM): Likewise.
libmvec tests involve calling INIT_ARCH_EXT during initialization then
CHECK_ARCH_EXT before testing each function to see if the processor
being used for testing supports the required instruction set
extensions.
After my refactoring of libm-test infrastructure, the INIT_ARCH_EXT
call is in libm-test-support.c, built only once per floating-point
type. Now, in fact all definitions of this macro are empty, but given
that the definitions in sysdeps/x86_64/fpu/math-tests-arch.h are
conditional on REQUIRE_* macros defined in particular vector tests, it
seems more correct for the INIT_ARCH_EXT call to go instead in
libm-test-driver.c which gets built separately with those REQUIRE_*
macros properly defined. This patch moves the call there.
Tested for x86_64 and x86.
* math/libm-test-support.h: Do not include <math-tests-arch.h>
here.
* math/libm-test-support.c (libm_test_init): Do not call
INIT_ARCH_EXT here.
* math/libm-test-driver.c: Include <math-tests-arch.h>.
(main): Call INIT_ARCH_EXT.
libm-test-driver.c contains various functions used in the course of
libm testing, which are built as part of each test using this
machinery.
Currently, these functions get built for three tests for each type
(e.g. test-float, test-ifloat, test-float-finite), plus the vector
function tests. All these tests are huge and thus slow to build; the
output of gen-libm-test.pl totals around 40 MB across all functions.
To make the individual tests built from the Makefile smaller, it makes
sense to split these tests up so the tests for each function are built
separately (thus, three tests for each (function, type) pair, plus
vector tests built only for functions that actually have vector
versions). This improves parallelism and means that if tests fail,
the summary of failed tests makes it more obvious where the problem
might be without needing to look in the .out files to see which
functions' tests failed (though architecture maintainers still need to
keep libm-test-ulps up to date to avoid spurious failures of little
interest).
Simply including libm-test-driver.c as-is in such individual-function
tests does not work because of unused static check_* functions (those
functions only being used for the types of the outputs of the function
under test). It also means the common code gets built over 1000 times
instead of nine (plus vector tests). To avoid that issue, this patch
splits out the bulk of the libm-test-driver.c code into a separate
file libm-test-support.c (with a few functions made non-static). That
separate file is built only once for each floating-point type (so at
present three times, or twice on architectures with long double =
double). Definitions needed in both libm-test-support.c and
libm-test-driver.c go in libm-test-support.h (it's possible some of
those are in fact only needed in one of the two files).
libm-test-driver.c keeps definitions of a limited number of variables
used to configure how libm-test-support.c behaves, various macros and
structures needed by individual-function tests, and the main function.
This move is also consistent in spirit with the move away from
test-skeleton.c having all the test support code, to a small
support/test-driver.c included in individual tests with most of the
code built separately.
Tested for x86_64 and x86.
* math/libm-test-support.c: New file. Content from
math/libm-test-driver.c.
* math/libm-test-support.h: Likewise.
* math/libm-test-support-double.c: New file.
* math/libm-test-support-float.c: Likewise.
* math/libm-test-support-ldouble.c: Likewise.
* math/libm-test-driver.c: Remove main comment and header
includes. Include libm-test-support.h.
[!_GNU_SOURCE] (_GNU_SOURCE): Do not define.
(flag_test_errno): Remove static.
(flag_test_exceptions): Likewise.
(flag_test_finite): Likewise.
(flag_test_inline): Likewise.
(flag_test_mathvec): Likewise.
(test_msg): Likewise.
(NO_EXCEPTION): Remove.
(INVALID_EXCEPTION): Likewise.
(DIVIDE_BY_ZERO_EXCEPTION): Likewise.
(OVERFLOW_EXCEPTION): Likewise.
(UNDERFLOW_EXCEPTION): Likewise.
(INEXACT_EXCEPTION): Likewise.
(INVALID_EXCEPTION_OK): Likewise.
(DIVIDE_BY_ZERO_EXCEPTION_OK): Likewise.
(OVERFLOW_EXCEPTION_OK): Likewise.
(UNDERFLOW_EXCEPTION_OK): Likewise.
(NO_INEXACT_EXCEPTION): Likewise.
(EXCEPTIONS_OK): Likewise.
(IGNORE_ZERO_INF_SIGN): Likewise.
(TEST_NAN_SIGN): Likewise.
(TEST_NAN_PAYLOAD): Likewise.
(NO_TEST_INLINE): Likewise.
(XFAIL_TEST): Likewise.
(ERRNO_UNCHANGED): Likewise.
(ERRNO_EDOM): Likewise.
(ERRNO_ERANGE): Likewise.
(IGNORE_RESULT): Likewise.
(NON_FINITE): Likewise.
(TEST_SNAN): Likewise.
(NO_TEST_MATHVEC): Likewise.
(__CONCATX): Likewise.
(TYPE_MIN): Likewise.
(TYPE_TRUE_MIN): Likewise.
(TYPE_MAX): Likewise.
(MIN_EXP): Likewise.
(MAX_EXP): Likewise.
(MANT_DIG): Likewise.
(FSTR_MAX): Likewise.
(ulp_idx): Likewise.
(qtype_str): Remove static.
(TEST_COND_binary32): Remove.
(TEST_COND_binary64): Likewise.
(TEST_COND_binary128): Likewise.
(TEST_COND_ibm128): Likewise.
(TEST_COND_intel96): Likewise.
(TEST_COND_m68k96): Likewise.
(TEST_COND_ibm128_libgcc): Likewise.
(XFAIL_IBM128_LIBGCC): Likewise.
(PAYLOAD_DIG): Likewise.
(UNDERFLOW_EXCEPTION_FLOAT): Likewise.
(UNDERFLOW_EXCEPTION_OK_FLOAT): Likewise.
(UNDERFLOW_EXCEPTION_DOUBLE): Likewise.
(UNDERFLOW_EXCEPTION_OK_DOUBLE): Likewise.
(UNDERFLOW_EXCEPTION_LDOUBLE_IBM): Likewise.
(UNDERFLOW_EXCEPTION_BEFORE_ROUNDING): Likewise.
(TEST_COND_long32): Likewise.
(TEST_COND_long64): Likewise.
(TEST_COND_before_rounding): Likewise.
(TEST_COND_after_rounding): Likewise.
(ulps_file_name): Likewise.
(ulps_file): Likewise.
(output_ulps): Likewise.
(output_dir): Likewise.
(noErrors): Likewise.
(noTests): Likewise.
(noExcTests): Likewise.
(noErrnoTests): Likewise.
(verbose): Likewise.
(output_max_error): Likewise.
(output_points): Likewise.
(ignore_max_ulp): Likewise.
(max_error): Likewise.
(real_max_error): Likewise.
(imag_max_error): Likewise.
(prev_max_error): Likewise.
(prev_real_max_error): Likewise.
(prev_imag_max_error): Likewise.
(max_valid_error): Likewise.
(TYPE_DECIMAL_DIG): Likewise.
(TYPE_HEX_DIG): Likewise.
(fmt_ftostr): Likewise.
(compare_ulp_data): Likewise.
(find_ulps): Likewise.
(init_max_error): Likewise.
(set_max_error): Likewise.
(print_float): Likewise.
(print_screen): Likewise.
(print_screen_max_error): Likewise.
(update_stats): Likewise.
(print_function_ulps): Likewise.
(print_complex_function_ulps): Likewise.
(fpstack_test): Likewise.
(print_max_error): Likewise.
(print_complex_max_error): Likewise.
(test_single_exception): Likewise.
(test_exceptions): Likewise.
(test_single_errno): Likewise.
(test_errno): Likewise.
(ULPDIFF): Likewise.
(ulp): Likewise.
(check_float_internal): Likewise.
(check_float): Likewise.
(check_complex): Likewise.
(check_int): Likewise.
(check_long): Likewise.
(check_bool): Likewise.
(check_longlong): Likewise.
(check_intmax_t): Likewise.
(check_uintmax_t): Likewise.
(enable_test): Likewise.
(matherr): Likewise.
(initialize): Likewise.
(options): Likewise.
(doc): Remove static.
(argp): Likewise.
(parse_opt): Remove.
(check_ulp): Likewise.
(libm_test_init): Likewise.
(libm_test_finish): Likewise.
* math/Makefile (libm-test-support): New variable.
(test-extras): Add libm-test-support files.
(extra-test-objs): Likewise.
(CFLAGS-libm-test-support-float.c): New variable.
(CFLAGS-libm-test-support-double.c): Likewise.
(CFLAGS-libm-test-support-ldouble.c): Likewise.
($(addprefix $(objpfx),$(libm-tests)): Depend on appropriate
libm-test-support objects.
Joseph Myers
Paul E. Murphy