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At present, libm tests for each function get built into a single
executable (for each floating point type, for each of normal / inline
/ finite-math-only functions, plus vector variants) and run together,
resulting in a single PASS or FAIL (for each of those nine variants
plus vector variants). Building this executable involves reading
about 40 MB of libm-test-*.c sources, which would grow to maybe 70 or
80 MB when the complex inverse trig and hyperbolic functions move to
the auto-libm-test-* mechanism (that move is practical now that tests
for all functions don't need regenerating for any change to
auto-libm-test-in but you can instead regenerate each
auto-libm-test-out-* file independently; auto-libm-test-out-casin and
auto-libm-test-out-casinh take about 38 minutes each to generate on my
system after such a move, auto-libm-test-out-cacos and
auto-libm-test-out-cacosh take about 80 minutes each).
This patch arranges for tests of each function to be run separately
from the makefiles instead. There are 121 functions being tested for
each (type, variant pair) (actually 126, but run as 121 from the
Makefile because each of the pairs (exp10, pow10), (isfinite, finite),
(lgamma, gamma), (remainder, drem), (scalbn, ldexp), shares a table of
test results and so is run together), so 1089 separate tests run from
the Makefile, plus 48 vector tests on x86_64 (six functions for eight
vector variants). Each test only involves a libm-test-<func>.c file
of no more than about 4 MB, rather than all such files taking about 40
MB. With tests run separately, test summaries will indicate which
functions actually have problems (of course, those problems may just
be out-of-date libm-test-ulps files if the file hasn't been updated
for the architecture in question recently).
All the .c files for the 1089+48 tests are generated automatically
from the Makefiles. Various checked-in boilerplate .c files are
removed as no longer needed. CFLAGS definitions for the different
kinds of tests are generated using makefile iterators to apply
target-specific variable settings. libm-have-vector-test.h is no
longer needed; the list of functions to test for each vector type is
now in the sysdeps Makefile.
This should remove the amount of boilerplate needed for float128
testing support; test-float128.h will still be needed, but not various
.c files or Makefile CFLAGS definitions. The logic for creating
dependencies on libm-test-support-*.o files should also render
<https://sourceware.org/ml/libc-alpha/2017-02/msg00279.html>
unnecessary.
Any comments? Especially regarding the use of iterators; there is
existing precedent (in elf/Makefile) for using o-iterator.mk as a
generic iterator with object-suffixes-left set to something other than
a list of object suffixes, but maybe there should be a differently
named iterator for such generic uses?
2017-02-16 Joseph Myers <joseph@codesourcery.com>
* math/Makefile (libm-tests-generated): Remove variable.
(libm-tests-base-normal): New variable.
(libm-tests-base-finite): Likewise.
(libm-tests-base-inline): Likewise.
(libm-tests-base): Likewise.
(libm-tests-normal): Likewise.
(libm-tests-finite): Likewise.
(libm-tests-inline): Likewise.
(libm-tests-vector): Likewise.
(libm-tests): Define in terms of these new variables.
(libm-tests-for-type): New variable.
(libm-tests.o): Move definition.
(tests): Move addition of $(libm-tests).
(generated): Update for new and removed libm test files.
($(objpfx)libm-test.c): Remove target.
($(objpfx)libm-have-vector-test.h): Likewise.
(CFLAGS-test-double-vlen2.c): Remove variable.
(CFLAGS-test-double-vlen4.c): Likewise.
(CFLAGS-test-double-vlen8.c): Likewise.
(CFLAGS-test-float-vlen4.c): Likewise.
(CFLAGS-test-float-vlen8.c): Likewise.
(CFLAGS-test-float-vlen16.c): Likewise.
(CFLAGS-test-float.c): Likewise.
(CFLAGS-test-float-finite.c): Likewise.
(CFLAGS-libm-test-support-float.c): Likewise.
(CFLAGS-test-double.c): Likewise.
(CFLAGS-test-double-finite.c): Likewise.
(CFLAGS-libm-test-support-double.c): Likewise.
(CFLAGS-test-ldouble.c): Likewise.
(CFLAGS-test-ldouble-finite.c): Likewise.
(CFLAGS-libm-test-support-ldouble.c): Likewise.
(libm-test-inline-cflags): New variable.
(CFLAGS-test-ifloat.c): Remove variable.
(CFLAGS-test-idouble.c): Likewise.
(CFLAGS-test-ildouble.c): Likewise.
($(addprefix $(objpfx), $(libm-tests.o))): Move target and update
dependencies.
($(foreach t,$(libm-tests-normal),$(objpfx)$(t).c)): New rule.
($(foreach t,$(libm-tests-finite),$(objpfx)$(t).c)): Likewise.
($(foreach t,$(libm-tests-inline),$(objpfx)$(t).c)): Likewise.
($(foreach t,$(libm-tests-vector),$(objpfx)$(t).c)): Likewise.
($(foreach t,$(types),$(objpfx)libm-test-support-$(t).c)):
Likewise.
(dependencies on libm-test-support-*.o): Remove.
($(foreach f,$(libm-test-funcs-all),$(objpfx)$(o)-$(f).o)): New
rules using iterators.
($(addprefix $(objpfx),$(call libm-tests-for-type,$(o)))):
Likewise.
($(objpfx)libm-test-support-$(o).o): Likewise.
($(addprefix $(objpfx),$(filter-out $(tests-static)
$(libm-vec-tests),$(tests)))): Filter out $(libm-tests-vector)
instead.
($(addprefix $(objpfx), $(libm-vec-tests))): Use iterator to
define rule instead.
* math/README.libm-test: Update.
* math/libm-test-acos.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-acosh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-asin.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-asinh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-atan.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-atan2.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-atanh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cabs.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cacos.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cacosh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-canonicalize.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-carg.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-casin.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-casinh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-catan.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-catanh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cbrt.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-ccos.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-ccosh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-ceil.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cexp.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cimag.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-clog.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-clog10.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-conj.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-copysign.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cos.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cosh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cpow.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-cproj.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-creal.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-csin.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-csinh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-csqrt.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-ctan.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-ctanh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-erf.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-erfc.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-exp.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-exp10.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-exp2.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-expm1.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fabs.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fdim.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-floor.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fma.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fmax.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fmaxmag.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fmin.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fminmag.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fmod.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fpclassify.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-frexp.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fromfp.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-fromfpx.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-getpayload.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-hypot.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-ilogb.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-iscanonical.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-iseqsig.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-isfinite.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-isgreater.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-isgreaterequal.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-isinf.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-isless.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-islessequal.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-islessgreater.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-isnan.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-isnormal.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-issignaling.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-issubnormal.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-isunordered.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-iszero.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-j0.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-j1.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-jn.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-lgamma.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-llogb.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-llrint.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-llround.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-log.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-log10.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-log1p.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-log2.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-logb.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-lrint.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-lround.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-modf.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-nearbyint.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-nextafter.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-nextdown.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-nexttoward.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-nextup.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-pow.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-remainder.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-remquo.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-rint.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-round.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-roundeven.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-scalb.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-scalbln.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-scalbn.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-setpayload.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-setpayloadsig.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-signbit.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-significand.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-sin.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-sincos.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-sinh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-sqrt.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-tan.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-tanh.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-tgamma.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-totalorder.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-totalordermag.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-trunc.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-ufromfp.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-ufromfpx.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-y0.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-y1.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-yn.inc: Include libm-test-driver.c.
(do_test): New function.
* math/libm-test-driver.c: Do not include libm-have-vector-test.h.
(HAVE_VECTOR): Remove macro.
(START): Do not call HAVE_VECTOR.
* math/test-double-vlen2.h (FUNC_TEST): Remove macro.
* math/test-double-vlen4.h (FUNC_TEST): Remove macro.
* math/test-double-vlen8.h (FUNC_TEST): Remove macro.
* math/test-float-vlen16.h (FUNC_TEST): Remove macro.
* math/test-float-vlen4.h (FUNC_TEST): Remove macro.
* math/test-float-vlen8.h (FUNC_TEST): Remove macro.
* math/test-math-vector.h (FUNC_TEST): New macro.
(WRAPPER_DECL): Rename to WRAPPER_DECL_f.
* sysdeps/x86_64/fpu/Makefile (double-vlen2-funcs): New variable.
(double-vlen4-funcs): Likewise.
(double-vlen4-avx2-funcs): Likewise.
(double-vlen8-funcs): Likewise.
(float-vlen4-funcs): Likewise.
(float-vlen8-funcs): Likewise.
(float-vlen8-avx2-funcs): Likewise.
(float-vlen16-funcs): Likewise.
(CFLAGS-test-double-vlen4-avx2.c): Remove variable.
(CFLAGS-test-float-vlen8-avx2.c): Likewise.
* sysdeps/x86_64/fpu/test-double-vlen4.h (TEST_VECTOR_cos): Remove
macro.
(TEST_VECTOR_sin): Likewise.
(TEST_VECTOR_sincos): Likewise.
(TEST_VECTOR_log): Likewise.
(TEST_VECTOR_exp): Likewise.
(TEST_VECTOR_pow): Likewise.
* sysdeps/x86_64/fpu/test-double-vlen8.h (TEST_VECTOR_cos):
Likewise.
(TEST_VECTOR_sin): Likewise.
(TEST_VECTOR_sincos): Likewise.
(TEST_VECTOR_log): Likewise.
(TEST_VECTOR_exp): Likewise.
(TEST_VECTOR_pow): Likewise.
* sysdeps/x86_64/fpu/test-float-vlen16.h (TEST_VECTOR_cosf):
Likewise.
(TEST_VECTOR_sinf): Likewise.
(TEST_VECTOR_sincosf): Likewise.
(TEST_VECTOR_logf): Likewise.
(TEST_VECTOR_expf): Likewise.
(TEST_VECTOR_powf): Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8.h (TEST_VECTOR_cosf):
Likewise.
(TEST_VECTOR_sinf): Likewise.
(TEST_VECTOR_sincosf): Likewise.
(TEST_VECTOR_logf): Likewise.
(TEST_VECTOR_expf): Likewise.
(TEST_VECTOR_powf): Likewise.
* math/gen-libm-have-vector-test.sh: Remove file.
* math/libm-test.inc: Likewise.
* math/libm-test-support-double.c: Likewise.
* math/libm-test-support-float.c: Likewise.
* math/libm-test-support-ldouble.c: Likewise.
* math/test-double-finite.c: Likewise.: Likewise.
* math/test-double.c: Likewise.
* math/test-float-finite.c: Likewise.
* math/test-float.c: Likewise.
* math/test-idouble.c: Likewise.
* math/test-ifloat.c: Likewise.
* math/test-ildouble.c: Likewise.
* math/test-ldouble-finite.c: Likewise.
* math/test-ldouble.c: Likewise.
* sysdeps/x86_64/fpu/test-double-vlen2.c: Likewise.
* sysdeps/x86_64/fpu/test-double-vlen2.h: Likewise.
* sysdeps/x86_64/fpu/test-double-vlen4-avx2.c: Likewise.
* sysdeps/x86_64/fpu/test-double-vlen4.c: Likewise.
* sysdeps/x86_64/fpu/test-double-vlen8.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen16.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen4.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen4.h: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8-avx2.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8.c: Likewise.
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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.
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When I moved tests of csin and csinh to auto-libm-test-in, I didn't
move a few tests for which gen-auto-libm-tests was very slow because
of MPC slowness on certain inputs.
Now that auto-libm-test-out has been split up, such slowness only
affects regenerating the test expectations for the individual
functions in question, rather than any addition of tests for any
function to auto-libm-test-in. Thus, I no longer consider it a
problem to have these inputs in auto-libm-test-in, and this patch
moves them there. This results in test generation for csin and csinh
taking 5m43s (for each of csin and csinh) on my system, while other
functions are unaffected.
I expect the test generation to be much faster in MPC 1.1 (the
relevant performance improvements went in MPC mainline in Dec 2013,
but there hasn't been a release from mainline since then).
Tested for x86_64 and x86.
* math/auto-libm-test-in: Add more tests of csin and csinh.
* math/auto-libm-test-out-csin: Regenerated.
* math/auto-libm-test-out-csinh: Likewise.
* math/libm-test-csin.inc (csin_test_data): Remove tests moved to
auto-libm-test-in.
* math/libm-test-csinh.inc (csinh_test_data): Likewise.
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Both libm-compat-calls and libm-compat-calls-auto list the functions
that must be built for the types float, double, and long double, but
not for other floating-point types that get added to libm. Besides
that, the use of libm-compat-calls-ldouble-yes to select if
w_lgamma_compatl and k_standardl should be built for long-double (in
libm-compat-calls) has the same effect of the use of type-foreach
(in libm-compat-calls-auto).
This patch merges the contents of libm-compat-calls into
libm-compat-calls-auto, then renames the latter to libm-compat-calls.
Tested for powerpc64le, s390, and x86_64.
* math/Makefile (libm-compat-calls-ldouble-yes): Merge into
libm-compat-calls-auto.
(libm-compat-calls): Likewise.
(libm-compat-calls-auto): Rename to libm-compat-calls and add
w_lgamma_compatF and k_standardF (merged from the items above).
(libm-routines): Use libm-compat-calls, instead of
libm-compat-calls-auto, with type-foreach.
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The libm tests of inline functions undefine __NO_MATH_INLINES (from
math-CPPFLAGS) in test-math-inline.h, but __LIBC_INTERNAL_MATH_INLINES
via -U options in the makefile.
This is an odd inconsistency between the handling of the two macros.
It also depends on the ordering (in compilation commands) of the
various variables providing compiler options (which I think is why
it's using CPPFLAGS-*.c instead of CFLAGS-*.c).
This patch moves the undefine to test-math-inline.h, so improving
consistency and eliminating the dependency on the order in which
variables go in the compilation commands. The CPPFLAGS-*.c variables
are renamed to CFLAGS-*.c, matching those for the non-inline libm
function tests.
By moving the -U option to the header file, this should ensure that
ordering issues don't arise with a subsequent move of the options to
these tests to target-specific CFLAGS += ... variable settings (for
when tests for each function are build separately and so compilation
options need setting for many more makefile targets, for which
target-specific variable settings seem to be the most convenient form
to generate with iterators).
Tested for x86_64.
* math/test-math-inline.h (__LIBC_INTERNAL_MATH_INLINES): Undefine
macro.
* math/Makefile (CPPFLAGS-test-ifloat.c): Rename to ...
(CFLAGS-test-ifloat.c): ... this. Remove
-U__LIBC_INTERNAL_MATH_INLINES.
* math/Makefile (CPPFLAGS-test-idouble.c): Rename to ...
(CFLAGS-test-idouble.c): ... this. Remove
-U__LIBC_INTERNAL_MATH_INLINES.
* math/Makefile (CPPFLAGS-test-ildouble.c): Rename to ...
(CFLAGS-test-ildouble.c): ... this. Remove
-U__LIBC_INTERNAL_MATH_INLINES.
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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.
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|
This patch adds the "_compat" suffix to the wrappers of the function
exp, which use _LIB_VERSION / matherr / __kernel_standard
functionality.
Tested for powerpc64le, s390, and x86_64.
* math/Makefile (libm-calls): Move w_exp...
(libm-compat-calls-auto): Here.
* math/w_expl.c: Add suffix "_compat" to filename.
* sysdeps/ia64/fpu/w_expl.c: Likewise.
* sysdeps/ia64/fpu/w_expf.c: Likewise.
* sysdeps/ia64/fpu/w_exp.c: Likewise.
* sysdeps/ieee754/dbl-64/w_exp.c: Likewise.
* sysdeps/ieee754/flt-32/w_expf.c: Likewise.
* sysdeps/ieee754/ldbl-128/w_expl.c: Likewise.
* sysdeps/ieee754/ldbl-128ibm/w_expl.c: Likewise.
* sysdeps/ieee754/ldbl-96/w_expl.c: Likewise.
* math/w_expl_compat.c: New file, copied from above.
* sysdeps/ia64/fpu/w_exp_compat.c: Likewise.
* sysdeps/ia64/fpu/w_expf_compat.c: Likewise.
* sysdeps/ia64/fpu/w_expl_compat.c: Likewise.
* sysdeps/ieee754/dbl-64/w_exp_compat.c: Likewise.
* sysdeps/ieee754/flt-32/w_expf_compat.c: Likewise.
* sysdeps/ieee754/ldbl-128/w_expl_compat.c: Likewise.
* sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Likewise.
* sysdeps/ieee754/ldbl-96/w_expl_compat.c: Likewise.
* sysdeps/ieee754/ldbl-64-128/w_expl.c: Add suffix "_compat"
to filename.
* sysdeps/ieee754/ldbl-opt/w_exp.c: Likewise.
* sysdeps/ieee754/ldbl-64-128/w_expl_compat.c: New file,
copied from above and adjusted for the new filenames.
* sysdeps/ieee754/ldbl-opt/w_exp_compat.c: Likewise.
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|
This patch adds the suffix "_compat2" to the wrappers for lgamma,
which use _LIB_VERSION / matherr / __kernel_standard functionality.
The suffix "_compat2" is used because the suffix "_compat" is already
used.
Tested for powerpc64le, s390, and x86_64.
* math/Makefile (libm-calls): Move w_lgammaF...
(libm-compat-calls-auto): Here.
* math/w_lgamma.c: Add suffix "_compat2" to filename.
* math/w_lgammaf.c: Likewise.
* math/w_lgammal.c: Likewise.
* math/w_lgamma_compat2.c: New file, copied from above.
* math/w_lgammaf_compat2.c: Likewise.
* math/w_lgammal_compat2.c: Likewise.
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|
This patch adds the suffix "_compat" to lgamma_r wrappers and make
some adjustments to #includes and Makefiles. This is a step towards
deprecation of wrappers that use _LIB_VERSION / matherr /
__kernel_standard functionality.
Tested for powerpc64le, s390, and x86_64.
* math/Makefile (libm-calls): Move w_lgammaF_r...
(libm-compat-calls-auto): Here.
* math/w_lgamma_r.c: Add suffix "_compat" to filename.
* math/w_lgammaf_r.c: Likewise.
* math/w_lgammal_r.c: Likewise.
* sysdeps/ia64/fpu/w_lgammal_r.c: Likewise.
* sysdeps/ia64/fpu/w_lgammaf_r.c: Likewise.
* sysdeps/ia64/fpu/w_lgamma_r.c: Likewise.
* math/w_lgamma_r_compat.c: New file, copied from above.
* math/w_lgammaf_r_compat.c: Likewise.
* math/w_lgammal_r_compat.c: Likewise.
* sysdeps/ia64/fpu/w_lgamma_r_compat.c: Likewise.
* sysdeps/ia64/fpu/w_lgammaf_r_compat.c: Likewise.
* sysdeps/ia64/fpu/w_lgammal_r_compat.c: Likewise.
* sysdeps/ieee754/ldbl-opt/w_lgamma_r.c: Add suffix "_compat"
to filename.
* sysdeps/ieee754/ldbl-opt/w_lgammal_r.c: Likewise.
* sysdeps/ieee754/ldbl-opt/w_lgamma_r_compat.c: New file
copied from above and adjusted for the new filenames.
* sysdeps/ieee754/ldbl-opt/w_lgammal_r_compat.c: Likewise.
|
|
The libm vector tests disable tests of exception raising via defining
macros EXCEPTION_TESTS_float and EXCEPTION_TESTS_double to 0 in the
headers for individual vector lengths.
As EXCEPTION_TESTS is used in code in libm-test-driver.c that is
otherwise ready to be built only once per type, this is not a good
idea; it's better to define TEST_EXCEPTIONS appropriately so that
flag_test_exceptions then gets initialized appropriately.
Furthermore, it's better to do this just once, in test-math-vector.h,
since there is no actual dependence on the vector length or type.
This patch duly makes that change.
Tested for x86_64.
* math/test-math-finite.h (TEST_EXCEPTIONS): New macro.
* math/test-math-no-finite.h (TEST_EXCEPTIONS): Likewise.
* math/test-math-vector.h (TEST_EXCEPTIONS): Likewise.
* math/test-math-no-inline.h (TEST_EXCEPTIONS): Remove macro.
* math/test-double-vlen2.h (EXCEPTION_TESTS_double): Likewise.
* math/test-double-vlen4.h (EXCEPTION_TESTS_double): Likewise.
* math/test-double-vlen8.h (EXCEPTION_TESTS_double): Likewise.
* math/test-float-vlen4.h (EXCEPTION_TESTS_float): Likewise.
* math/test-float-vlen8.h (EXCEPTION_TESTS_float): Likewise.
* math/test-float-vlen16.h (EXCEPTION_TESTS_float): Likewise.
|
|
Bug 21112 reports a case where powf is substantially inaccurate. This
results from a multiplication where cp_h*p_h is required to be exact,
and p_h is masked to have only 12 leading nonzero bits in its
mantissa, but the value of cp_h has the 13th bit nonzero, leading to
inexact multiplication results in some cases that can result in large
errors in the final result of powf. This patch fixes this by using a
value of cp_h correctly rounded to nearest to 12 bits, with a
corresponding updated value of cp_l.
Tested for x86_64 and x86.
[BZ #21112]
* sysdeps/ieee754/flt-32/e_powf.c (cp_h): Use value with trailing
12 bits zero.
(cp_l): Update for new value of cp_h.
* math/auto-libm-test-in: Add another test of pow.
* math/auto-libm-test-out-pow: Regenerated.
|
|
Splitting libm tests by function will mean about a thousand such tests
built separately instead of the present nine (plus vector variants).
When this is done, it's desirable to avoid needing to build all the
test infrastructure so many times. Also, simply including
libm-test-driver.c as-is into per-function tests doesn't actually
work, because the various check_* functions are not used by all tests
and so generate errors for unused static functions.
Although some pieces of infrastructure depend on the type being tested
while others don't, building once per type seems the simplest
approach. This patch makes changes to libm-test-driver.c in
preparation for that. Various cases where functions directly use
macros such as TEST_ERRNO (that may vary depending on things other
than the type under test) are changed to use variables initialized
using those macros, while most of the code in main is moved out to
functions libm_test_init and libm_test_fini.
The idea is that all the functions in libm-test-driver.c will be moved
out in a subsequent patch to be built once per type (and be no longer
static when they are used from per-function tests), while
libm-test-driver.c remains containing definitions of various variables
(no longer static, of course, because they'll be used in the per-type
code) and the main function. Declarations / macros relevant to both
the once-per-type code and the per-function tests will go in a shared
header.
Tested for x86_64.
* math/libm-test-driver.c (flag_test_errno): New variable.
(flag_test_exceptions): Likewise.
(flag_test_finite): Likewise.
(flag_test_inline): Likewise.
(flag_test_mathvec): Likewise.
(test_msg): Likewise.
(ulp_idx): Likewise.
(qtype_str): Likewise.
(ULP_IDX): Remove macro.
(QTYPE_STR): Likewise.
(find_ulps): Use ulp_idx not ULP_IDX.
(print_function_ulps): Use qtype_str, printed with %s, not
QTYPE_STR, printed with concatentation to format string.
(prin |
