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Author SHA1 Message Date
Joseph Myers
42760d7646 Make totalorder and totalordermag functions take pointer arguments. 
The resolution of C floating-point Clarification Request 25
<http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2397.htm#dr_25> is
that the totalorder and totalordermag functions should take pointer
arguments, and this has been adopted in C2X (with const added; note
that the integration of this change into C2X is present in the C
standard git repository but postdates the most recent public PDF
draft).

This patch updates glibc accordingly.  As a defect resolution, the API
is changed unconditionally rather than supporting any sort of TS
18661-1 mode for compilation with the old version of the API.  There
are compat symbols for existing binaries that pass floating-point
arguments directly.  As a consequence of changing to pointer
arguments, there are no longer type-generic macros in tgmath.h for
these functions.

Because of the fairly complicated logic for creating libm function
aliases and determining the set of aliases to create in a given glibc
configuration, rather than duplicating all that in individual source
files to create the versioned and compat symbols, the source files for
the various versions of totalorder functions are set up to redefine
weak_alias before using libm_alias_* macros to create the symbols
required.  In turn, this requires creating a separate alias for each
symbol version pointing to the same implementation (see binutils bug
<https://sourceware.org/bugzilla/show_bug.cgi?id=23840>), which is
done automatically using __COUNTER__.  (As I noted in
<https://sourceware.org/ml/libc-alpha/2018-10/msg00631.html>, it might
well make sense for glibc's symbol versioning macros to do that alias
creation with __COUNTER__ themselves, which would somewhat simplify
the logic in the totalorder source files.)

It is of course desirable to test the compat symbols.  I did this with
the generic libm-test machinery, but didn't wish to duplicate the
actual tables of test inputs and outputs, and thought it risky to
attempt to have a single object file refer to both default and compat
versions of the same function in order to test them together.  Thus, I
created libm-test-compat_totalorder.inc and
libm-test-compat_totalordermag.inc which include the generated .c
files (with the processed version of those tables of inputs) from the
non-compat tests, and added appropriate dependencies.  I think this
provides sufficient test coverage for the compat symbols without also
needing to make the special ldbl-96 and ldbl-128ibm tests (of
peculiarities relating to the representations of those formats that
can't be covered in the generic tests) run for the compat symbols.

Tests of compat symbols need to be internal tests, meaning _ISOMAC is
not defined.  Making some libm-test tests into internal tests showed
up two other issues.  GCC diagnoses duplicate macro definitions of
__STDC_* macros, including __STDC_WANT_IEC_60559_TYPES_EXT__; I added
an appropriate conditional and filed
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91451> for this issue.
On ia64, include/setjmp.h ends up getting included indirectly from
libm-symbols.h, resulting in conflicting definitions of the STR macro
(also defined in libm-test-driver.c); I renamed the macros in
include/setjmp.h.  (It's arguable that we should have common internal
headers used everywhere for stringizing and concatenation macros.)

Tested for x86_64 and x86, and with build-many-glibcs.py.

	* math/bits/mathcalls.h
	[__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN]
	(totalorder): Take pointer arguments.
	[__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN]
	(totalordermag): Likewise.
	* manual/arith.texi (totalorder): Likewise.
	(totalorderf): Likewise.
	(totalorderl): Likewise.
	(totalorderfN): Likewise.
	(totalorderfNx): Likewise.
	(totalordermag): Likewise.
	(totalordermagf): Likewise.
	(totalordermagl): Likewise.
	(totalordermagfN): Likewise.
	(totalordermagfNx): Likewise.
	* math/tgmath.h (__TGMATH_BINARY_REAL_RET_ONLY): Remove macro.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (totalorder): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (totalordermag): Likewise.
	* math/Versions (GLIBC_2.31): Add totalorder, totalorderf,
	totalorderl, totalordermag, totalordermagf, totalordermagl,
	totalorderf32, totalorderf64, totalorderf32x, totalordermagf32,
	totalordermagf64, totalordermagf32x, totalorderf64x,
	totalordermagf64x, totalorderf128 and totalordermagf128.
	* math/Makefile (libm-test-funcs-noauto): Add compat_totalorder
	and compat_totalordermag.
	(libm-test-funcs-compat): New variable.
	(libm-tests-compat): Likewise.
	(tests): Do not include compat tests.
	(tests-internal): Add compat tests.
	($(foreach t,$(libm-tests-base),
	$(objpfx)$(t)-compat_totalorder.o)): Depend
	on $(objpfx)libm-test-totalorder.c.
	($(foreach t,$(libm-tests-base),
	$(objpfx)$(t)-compat_totalordermag.o): Depend on
	$(objpfx)libm-test-totalordermag.c.
	(tgmath3-macros): Remove totalorder and totalordermag.
	* math/libm-test-compat_totalorder.inc: New file.
	* math/libm-test-compat_totalordermag.inc: Likewise.
	* math/libm-test-driver.c (struct test_ff_i_data): Update comment.
	(RUN_TEST_fpfp_b): New macro.
	(RUN_TEST_LOOP_fpfp_b): Likewise.
	* math/libm-test-totalorder.inc (totalorder_test_data): Use
	TEST_fpfp_b.
	(totalorder_test): Condition on [!COMPAT_TEST].
	(do_test): Likewise.
	* math/libm-test-totalordermag.inc (totalordermag_test_data): Use
	TEST_fpfp_b.
	(totalordermag_test): Condition on [!COMPAT_TEST].
	(do_test): Likewise.
	* math/gen-tgmath-tests.py (Tests.add_all_tests): Remove
	totalorder and totalordermag.
	* math/test-tgmath.c (NCALLS): Change to 132.
	(F(compile_test)): Do not call totalorder or totalordermag.
	(F(totalorder)): Remove.
	(F(totalordermag)): Likewise.
	* include/float.h (__STDC_WANT_IEC_60559_TYPES_EXT__): Do not
	define if [__STDC_WANT_IEC_60559_TYPES_EXT__].
	* include/setjmp.h [!_ISOMAC] (STR_HELPER): Rename to
	SJSTR_HELPER.
	[!_ISOMAC] (STR): Rename to SJSTR.  Update call to STR_HELPER.
	[!_ISOMAC] (TEST_SIZE): Update call to STR.
	[!_ISOMAC] (TEST_ALIGN): Likewise.
	[!_ISOMAC] (TEST_OFFSET): Likewise.
	* sysdeps/ieee754/dbl-64/s_totalorder.c: Include <shlib-compat.h>
	and <first-versions.h>.
	(__totalorder): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/dbl-64/s_totalordermag.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermag): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalorder): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermag): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/float128/float128_private.h
	(__totalorder_compatl): New macro.
	(__totalordermag_compatl): Likewise.
	* sysdeps/ieee754/flt-32/s_totalorderf.c: Include <shlib-compat.h>
	and <first-versions.h>.
	(__totalorderf): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/flt-32/s_totalordermagf.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermagf): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/ldbl-128/s_totalorderl.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalorderl): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/ldbl-128/s_totalordermagl.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermagl): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c: Include
	<shlib-compat.h>.
	(__totalorderl): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/ldbl-128ibm/s_totalordermagl.c: Include
	<shlib-compat.h>.
	(__totalordermagl): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/ldbl-96/s_totalorderl.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalorderl): Take pointer arguments.  Add symbol versions and
	compat symbols.
	* sysdeps/ieee754/ldbl-96/s_totalordermagl.c: Include
	<shlib-compat.h> and <first-versions.h>.
	(__totalordermagl): Take pointer arguments.  Add symbol versions
	and compat symbols.
	* sysdeps/ieee754/ldbl-opt/nldbl-totalorder.c (totalorderl): Take
	pointer arguments.
	* sysdeps/ieee754/ldbl-opt/nldbl-totalordermag.c (totalordermagl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c
	(do_test): Update calls to totalorderl and totalordermagl.
	* sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c (do_test):
	Update calls to totalorderl and totalordermagl.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
 2019-08-15 15:18:34 +00:00
Joseph Myers
3683b423a4 Handle more _FloatN, _FloatNx types in include/float.h. 
Continuing the preparation for additional _FloatN / _FloatNx type
support, this patch adds support in include/float.h.  This header
defines macros for _Float128 properties when using compilers before
GCC 7 that lack those macros in <float.h>.  For testing _Float32 /
_Float64 / _Float32x / _Float64x functions with older compilers, such
macros need to be defined for those types as well; for the older
compilers, those types will always be typedefs for another type, so
the definitions can be in terms of the macros for that other type.

Tested for x86_64.

	* include/float.h
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MANT_DIG): New macro.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_DECIMAL_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MIN_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MIN_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MAX_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MAX_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MAX): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_TRUE_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MANT_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_DECIMAL_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MIN_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MIN_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MAX_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MAX_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MAX): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_TRUE_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MANT_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_DECIMAL_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MIN_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MIN_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MAX_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MAX_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MAX): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_TRUE_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MANT_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_DECIMAL_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MIN_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MIN_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MAX_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MAX_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MAX): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_TRUE_MIN): Likewise.
 2017-11-07 23:49:04 +00:00
Joseph Myers
13c92696d2 Use __f128 to define FLT128_* constants in include/float.h for old GCC. 
When using compilers before GCC 7, include/float.h provides fallback
definitions of FLT128_* constants.  These definitions use 'Q' constant
suffixes, which works for configurations with _Float128 ABI-distinct
from long double, but not where it has the same ABI as long double.
This patch changes the definitions to use the __f128 macro from
<bits/floatn.h>, so allowing them to work in the non-distinct
_Float128 case (where they are used in building glibc tests, not for
building glibc itself) as well.

Tested (a) with build-many-glibcs.py with GCC 6 (installed stripped
shared libraries unchanged by the patch); (b) with
build-many-glibcs.py with GCC 6 together with the main patch to enable
float128 aliases; (c) for x86_64 with both GCC 6 and GCC 7.

	* include/float.h [!__GNUC_PREREQ (7, 0) && __HAVE_FLOAT128 &&
	__GLIBC_USE (IEC_60559_TYPES_EXT)] (FLT128_MAX): Define using
	__f128.
	[!__GNUC_PREREQ (7, 0) && __HAVE_FLOAT128 && __GLIBC_USE
	(IEC_60559_TYPES_EXT)] (FLT128_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __HAVE_FLOAT128 && __GLIBC_USE
	(IEC_60559_TYPES_EXT)] (FLT128_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __HAVE_FLOAT128 && __GLIBC_USE
	(IEC_60559_TYPES_EXT)] (FLT128_TRUE_MIN): Likewise.
 2017-10-17 20:16:01 +00:00
Gabriel F. T. Gomes
9f0170af26 Include libc-header-start.h in include/float.h 
The file include/float.h uses the macro __GLIBC_USE to test for TS 18661-3
support.  Such macro is provided by bits/libc-header-start.h, so include it
to get the definition.

Tested for powerpc64le and s390x.

	* include/float.h: Include libc-header-start.h to get the
	definition of __GLIBC_USE.
 2017-06-23 10:30:04 -03:00
Gabriel F. T. Gomes
8fd3101431 Allow macros prefixed with FLT128 in include/float.h 
TS 18661-3 specifies that macros prefixed with FLTN_ can be defined in
float.h, only if __STDC_WANT_IEC_60559_TYPES_EXT__ is defined as a macro
before the inclusion of float.h.  Since GCC 7.0, these macros are provided
under this condition, however, for older versions of GCC, these macros are
not provided at all.  This patch allows the definitions of such macros in
include/float.h for older compilers, if the condition above is met, and
even if _ISOMAC is defined.

	* include/float.h: Allow the definition of macros prefixed with
	FLT128 even if _ISOMAC is defined, but provided that
	__STDC_WANT_IEC_60559_TYPES_EXT__ is defined as a macro.
 2017-06-12 14:48:53 -03:00
Paul E. Murphy
81f26b53b5 float128: Add private _Float128 declarations for libm. 
Add the necessary bits to the private headers to support
building the _Float128 libm functions.

A local override for float.h is provided to include the
missing *FLT128 macros implied by TS 18661-3 for this
type when compiling prior to GCC 7.

	* include/complex.h (__kernel_casinhf128): New declaration.
	* include/float.h: New file.
	* include/math.h (__finitef128): Add a hidden def.
	(__isinff128): Likewise.
	(__isnanf128): Likewise.
	(__fpclassify): Likewise.
	(__issignalling): Likewise.
	(__expf128): Likewise.
	(__expm1f128): Likewise.

	* sysdeps/generic/fix-fp-int-convert-overflow.h:
	(FIX_FLT128_LONG_CONVERT_OVERFLOW): New macro.
	(FIX_FLT128_LLONG_CONVERT_OVERFLOW): Likewise.

	* sysdeps/generic/math-type-macros-float128.h: New file.

	* sysdeps/generic/math_private.h: Include bits/floatn.h and
	math_private_calls.h for _Float128.
	(__isinff128): New inline implementation used when GCC < 7.0,
	since in this case __builtin_isinf_sign is broken.
	(fabsf128): New inline implementation that calls the builtin.
	(__EXPR_FLT128): New macro.
	(min_of_type): Optionally include _Float128 types too.

	* sysdeps/generic/math_private_calls.h (__kernel_sincos):
	Declare for _Float128.
	(__kernel_rem_pio2): Likewise.

	* sysdeps/ieee754/ldbl-opt/s_sin.c:
	(__DECL_SIMD_sincos_disablef128): New macro.
 2017-05-15 10:23:28 -03:00