Add test infrastructure for narrowing libm functions.
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.
2018-02-09 21:55:48 +00:00
|
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/* Common definitions for libm tests for _Float64x arguments to
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narrowing functions.
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2024-01-01 18:12:26 +00:00
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Copyright (C) 2018-2024 Free Software Foundation, Inc.
|
Add test infrastructure for narrowing libm functions.
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.
2018-02-09 21:55:48 +00:00
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This file is part of the GNU C Library.
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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
|
Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
|
Add test infrastructure for narrowing libm functions.
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.
2018-02-09 21:55:48 +00:00
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#include <bits/floatn.h>
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#include <float.h>
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#define ARG_FUNC(function) function ## f64x
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#define ARG_FLOAT _Float64x
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#define ARG_PREFIX FLT64X
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#define ARG_LIT(x) __f64x (x)
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#if FLT64X_MANT_DIG == LDBL_MANT_DIG
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# define ARG_TYPE_STR "ldouble"
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#else
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# define ARG_TYPE_STR "float128"
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#endif
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#define FUNC_NARROW_SUFFIX f64x
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