about summary refs log tree commit diff
path: root/bits/floatn.h
Commit message (Collapse)AuthorAgeFilesLines
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-011-1/+1
|
* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2018-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Add _Float64x function aliases.Joseph Myers2017-11-271-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch continues filling out TS 18661-3 support by adding *f64x function aliases on platforms with _Float64x support. (It so happens the set of such platforms is exactly the same as the set of platforms with _Float128 support, although on x86_64, x86 and ia32 the _Float64x format is Intel extended rather than binary128.) The API provided corresponds exactly to that provided for _Float128, mostly coming from TS 18661-3. As these functions always alias those for another type (long double, _Float128 or both), __* function names are not provided, as in other cases of alias types. Given the preparation done in previous patches, this one just enables the feature via Makeconfig and bits/floatn.h, adds symbol versions, and updates documentation and ABI baselines. The symbol versions are present unconditionally as GLIBC_2.27 in the relevant Versions files, as it's OK for those to specify versions for functions that may not be present in some configurations; no additional complexity is needed unless in future some configuration gains support for this type that didn't have such support in 2.27. The Makeconfig additions for ia64 and x86 aren't strictly needed, as those configurations also get float64x-alias-fcts definitions from sysdeps/ieee754/float128/Makeconfig, but still seem appropriate given that _Float64x is not _Float128 for those configurations. A libm-test-ulps update for x86 is included. This is because bits/mathinline.h does not have _Float64x support added and for two functions the use of out-of-line functions results in increased ulps (ifloat64x shares ulps with ildouble / ifloat128 as appropriate). Given that we'd like generally to eliminate bits/mathinline.h optimizations, preferring to have such optimizations in GCC instead, it seems reasonable not to add such support there for new types. GCC support for _FloatN / _FloatNx built-in functions is limited, but has been improved in GCC 8, and at some point I hope the full set of libm built-in functions in GCC, and other optimizations with per-floating-type aspects, will be enabled for all _FloatN / _FloatNx types. Tested for x86_64 and x86, and with build-many-glibcs.py, with both GCC 6 and GCC 7. * sysdeps/ia64/Makeconfig (float64x-alias-fcts): New variable. * sysdeps/ieee754/float128/Makeconfig (float64x-alias-fcts): Likewise. * sysdeps/ieee754/ldbl-128/Makeconfig (float64x-alias-fcts): Likewise. * sysdeps/x86/Makeconfig: New file. * bits/floatn-common.h (__HAVE_FLOAT64X): Remove macro. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * bits/floatn.h (__HAVE_FLOAT64X): New macro. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/ia64/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/ieee754/ldbl-128/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/mips/ieee754/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/powerpc/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/x86/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * manual/math.texi (Mathematics): Document support for _Float64x. * math/Versions (GLIBC_2.27): Add _Float64x functions. * stdlib/Versions (GLIBC_2.27): Likewise. * wcsmbs/Versions (GLIBC_2.27): Likewise. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/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.
* Support bits/floatn.h inclusion from .S files.Joseph Myers2017-11-171-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Further _FloatN / _FloatNx type alias support will involve making architecture-specific .S files use the common macros for libm function aliases. Making them use those macros will also serve to simplify existing code for aliases / symbol versions in various cases, similar to such simplifications for ldbl-opt code. The libm-alias-*.h files sometimes need to include <bits/floatn.h> to determine which aliases they should define. At present, this does not work for inclusion from .S files because <bits/floatn.h> can define typedefs for old compilers. This patch changes all the <bits/floatn.h> and <bits/floatn-common.h> headers to include __ASSEMBLER__ conditionals. Those conditionals disable everything related to C syntax in the __ASSEMBLER__ case, not just the problem typedefs, as that seemed cleanest. The __HAVE_* definitions remain in the __ASSEMBLER__ case, as those provide information that is required to define the correct set of aliases. Tested with build-many-glibcs.py for a representative set of configurations (x86_64-linux-gnu i686-linux-gnu ia64-linux-gnu powerpc64le-linux-gnu mips64-linux-gnu-n64 sparc64-linux-gnu) with GCC 6. Also tested with GCC 6 for i686-linux-gnu in conjunction with changes to use alias macros in .S files. * bits/floatn-common.h [!__ASSEMBLER]: Disable everything related to C syntax instead of availability and properties of types. * bits/floatn.h [!__ASSEMBLER]: Likewise. * sysdeps/ia64/bits/floatn.h [!__ASSEMBLER]: Likewise. * sysdeps/ieee754/ldbl-128/bits/floatn.h [!__ASSEMBLER]: Likewise. * sysdeps/mips/ieee754/bits/floatn.h [!__ASSEMBLER]: Likewise. * sysdeps/powerpc/bits/floatn.h [!__ASSEMBLER]: Likewise. * sysdeps/x86/bits/floatn.h [!__ASSEMBLER]: Likewise.
* Add bits/floatn.h defines for more _FloatN / _FloatNx types.Joseph Myers2017-10-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bits/floatn.h header currently only has defines relating to _Float128. This patch adds defines relating to other _FloatN / _FloatNx types. The approach taken is to add defines for all _FloatN / _FloatNx types known to GCC, and to put them in a common bits/floatn-common.h header included at the end of all the individual bits/floatn.h headers. If in future some defines become different for different glibc configurations, they will move out into the separate bits/floatn.h headers. Some defines are expected always to be the same across glibc ports. Corresponding defines are nevertheless put in this header. The intent is that where there are conditionals (in headers or in non-installed files) that can just repeat the same or nearly the same logic for each floating-point type, they should do so, even if in fact the cases for some types could be unconditionally present or absent because the same conditionals are true or false for all glibc configurations. This should make the glibc code with such conditionals easier to read, because the reader can just see that the same conditionals are repeated for each type, rather than seeing different conditionals for different types and needing to reason, at each location with such differences, why those differences are indeed correct there. (Cases involving per-format rather than per-type logic are more likely still to need differences in how they handle different types.) Having such defines and conditionals also helps in incremental preparation for adding _Float32 / _Float64 / _Float32x / _Float64x function aliases. I intend subsequent patches to add such conditionals corresponding to those already present for _Float128, as well as making more architecture-specific function implementations use common macros to define aliases in preparation for adding such _FloatN / _FloatNx aliases. Tested for x86_64. * bits/floatn-common.h: New file. * math/Makefile (headers): Add bits/floatn-common.h. * bits/floatn.h: Include <bits/floatn-common.h>. * sysdeps/ia64/bits/floatn.h: Likewise. * sysdeps/ieee754/ldbl-128/bits/floatn.h: Likewise. * sysdeps/mips/ieee754/bits/floatn.h: Likewise. * sysdeps/powerpc/bits/floatn.h: Likewise. * sysdeps/x86/bits/floatn.h: Likewise.
* float128: Add public _Float128 declarations to libm.Paul E. Murphy2017-05-151-0/+35
This introduces the machine-dependent bits/floatn.h to control the inclusion of _Float128 ABI. * bits/floatn.h: New file. * bits/huge_val_flt128.h: Likewise. * bits/libm-simd-decl-stubs.h (__DECL_SIMD_cosf128): New macro. (__DECL_SIMD_sinf128): Likewise. (__DECL_SIMD_sincosf128): Likewise. (__DECL_SIMD_logf128): Likewise. (__DECL_SIMD_expf128): Likewise. (__DECL_SIMD_powf128): Likewise. * math/Makefile (headers): Install bits/floatn.h and bits/huge_val_flt128.h. * math/bits/cmathcalls.h (_Mdouble_complex_): Only define if not defined. * math/bits/mathcalls.h (pow10, isinf, finite, drem, significand) (isnan, gamma, nexttoward, scalb): Only define if not __MATH_DECLARING_FLOATN. (nextdown, nextup, llogb, roundeven, fromfp, ufromfp, fromfpx) (ufromfpx, fmaxmag, fminmag, totalorder, totalordermag) (canonicalize, getpayload, setpayload, setpayloadsig): Declare for _FloatN even if __STDC_WANT_IEC_60559_BFP_EXT__ is not defined. * math/complex.h: Include bits/libc-header-start.h and bits/floatn.h. Include bits/cmathcalls.h to get the declarations of _Float128 versions of complex functions. [__HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)] (CMPLXF128): Define macro. * math/math.h: Include bits/floatn.h and bits/huge_val_flt128.h. Include bits/mathcalls-helper-functions.h and bits/mathcalls.h to get the declarations of _Float128 versions of math functions. (__MATH_DECLARING_FLOATN): New macro to control declaration of _FloatN types. [__GNUC_PREREQ (6,0)] (signbit): Since GCC 6.0, __builtin_signbit is type-generic, so use it without __MATH_TG. [__HAVE_DISTINCT_FLOAT128] (isinf): This builtin is broken for _Float128 type on GCC < 7.0. Explicitly call __isinff128 for _Float128 type and GCC < 7.0, otherwise use the builtin. [__HAVE_FLOAT128 && defined __USE_GNU] (M_Ef128, M_LOG2Ef128) (M_LOG10Ef128, M_LN2f128, M_LN10f128, M_PIf128, M_PI_2f128) (M_PI_4f128, M_1_PIf128, M_2_PIf128, M_SQRT2f128, M_SQRT1_2f128): New _GNU_SOURCE enabled macros.