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2024-02-01Refer to C23 in place of C2X in glibcJoseph Myers
WG14 decided to use the name C23 as the informal name of the next revision of the C standard (notwithstanding the publication date in 2024). Update references to C2X in glibc to use the C23 name. This is intended to update everything *except* where it involves renaming files (the changes involving renaming tests are intended to be done separately). In the case of the _ISOC2X_SOURCE feature test macro - the only user-visible interface involved - support for that macro is kept for backwards compatibility, while adding _ISOC23_SOURCE. Tested for x86_64.
2024-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert
2023-12-19alpha: Fix fesetexceptflag (BZ 30998)Bruno Haible
It clears some exception flags that are outside the EXCEPTS argument. It fixes math/test-fexcept on qemu-user. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2023-05-30Fix misspellings in sysdeps/ -- BZ 25337Paul Pluzhnikov
2023-01-06Update copyright dates with scripts/update-copyrightsJoseph Myers
2022-04-07alpha: Remove fcopysign{f} implementationAdhemerval Zanella
The generic code already uses builtins.
2022-04-04alpha: Remove s_abs implementationsAdhemerval Zanella
The generic implementation already uses builtins.
2022-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2021-09-30Update alpha libm-test-ulpsAdhemerval Zanella
2021-09-03Remove "Contributed by" linesSiddhesh Poyarekar
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-01-28Update alpha libm-test-ulpsAdhemerval Zanella
2021-01-02Update copyright dates with scripts/update-copyrightsPaul Eggert
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
2020-10-08Update alpha libm-test-ulpsAdhemerval Zanella
2020-06-22alpha: Use builtin sqrt{f}Adhemerval Zanella
The generic implementation is simplified by removing the 'optimization' for !_IEEE_FP_INEXACT (which does not handle inexact neither some values). Checked on alpha-linux-gnu.
2020-04-08Update alpha libm-test-ulpsAdhemerval Zanella
2020-03-19math: Remove inline math testsAdhemerval Zanella
With mathinline removal there is no need to keep building and testing inline math tests. The gen-libm-tests.py support to generate ULP_I_* is removed and all libm-test-ulps files are updated to longer have the i{float,double,ldouble} entries. The support for no-test-inline is also removed from both gen-auto-libm-tests and the auto-libm-test-out-* were regenerated. Checked on x86_64-linux-gnu and i686-linux-gnu.
2020-01-03Add libm_alias_finite for _finite symbolsWilco Dijkstra
This patch adds a new macro, libm_alias_finite, to define all _finite symbol. It sets all _finite symbol as compat symbol based on its first version (obtained from the definition at built generated first-versions.h). The <fn>f128_finite symbols were introduced in GLIBC 2.26 and so need special treatment in code that is shared between long double and float128. It is done by adding a list, similar to internal symbol redifinition, on sysdeps/ieee754/float128/float128_private.h. Alpha also needs some tricky changes to ensure we still emit 2 compat symbols for sqrt(f). Passes buildmanyglibc. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2020-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
2019-09-07Prefer https to http for gnu.org and fsf.org URLsPaul Eggert
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
2019-09-03Update Alpha libm-test-ulpsAurelien Jarno
Changelog: * sysdeps/alpha/fpu/libm-test-ulps: Regenerated using GCC 9.2.
2019-08-13Declare most TS 18661-1 interfaces for C2X.Joseph Myers
C2X adds the interfaces from TS 18661-1, and all except a handful in Annex F are unconditionally visible in C2X rather than only visible when __STDC_WANT_IEC_60559_BFP_EXT__ is defined. This patch updates glibc headers accordingly: most uses of __GLIBC_USE (IEC_60559_BFP_EXT) are changed to a new __GLIBC_USE (IEC_60559_BFP_EXT_C2X). (Regarding totalorder and totalordermag, the type-generic macros in tgmath.h will go away when the functions are changed to take pointer arguments.) * bits/libc-header-start.h (__GLIBC_USE_IEC_60559_BFP_EXT): Update comment. (__GLIBC_USE_IEC_60559_BFP_EXT_C2X): New macro. * bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Change to [__GLIBC_USE (IEC_60559_BFP_EXT_C2X)]. * include/limits.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * math/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * stdlib/bits/stdlib-ldbl.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * stdlib/stdint.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * stdlib/stdlib.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/aarch64/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/alpha/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/arm/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/csky/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/hppa/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/ia64/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/m68k/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/microblaze/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/mips/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/nios2/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/powerpc/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/riscv/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/s390/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/sh/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/sparc/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * sysdeps/x86/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise, except for totalorder, totalordermag, getpayload, setpayload and setpayloadsig. * math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Likewise, except for totalorder and totalordermag.
2019-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
* 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.
2018-12-28Update Alpha libm-test-ulpsAurelien Jarno
Changelog: * sysdeps/alpha/fpu/libm-test-ulps: Regenerated.
2018-09-27Use copysign functions not __copysign functions in glibc libm.Joseph Myers
Continuing the move to use, within libm, public names for libm functions that can be inlined as built-in functions on many architectures, this patch moves calls to __copysign functions to call the corresponding copysign names instead, with asm redirection to __copysign when the calls are not inlined (all cases are inlined except for IBM long double for powerpc soft-float / e500v1). This eliminates the need for an inline function defining __copysign in terms of __builtin_copysign. Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT_BINARY_ARGS): New macro. [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (copysign): Redirect using MATH_REDIRECT. * sysdeps/alpha/fpu/s_copysign.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/alpha/fpu/s_copysignf.c: Likewise. * sysdeps/ieee754/dbl-64/s_copysign.c: Likewise. * sysdeps/ieee754/float128/s_copysignf128.c: Likewise. * sysdeps/ieee754/flt-32/s_copysignf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_copysignl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_copysignl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_copysignl.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c: Likewise. * sysdeps/riscv/rvd/s_copysign.c: Likewise. * sysdeps/riscv/rvf/s_copysignf.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.c: Likewise. * sysdeps/generic/math_private_calls.h [!__MATH_DECLARING_LONG_DOUBLE || !NO_LONG_DOUBLE] (__copysign): Do not declare and define as an inline function. * math/divtc3.c (__divtc3): Use copysign functions instead of __copysign variants. * math/multc3.c (__multc3): Likewise. * sysdeps/generic/math-type-macros.h (M_COPYSIGN): Likewise. * sysdeps/ieee754/dbl-64/e_atan2.c (signArctan2): Likewise. * sysdeps/ieee754/dbl-64/e_atanh.c (__ieee754_atanh): Likewise. * sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Likewise. * sysdeps/ieee754/dbl-64/e_jn.c (__ieee754_jn): Likewise. (__ieee754_yn): Likewise. * sysdeps/ieee754/dbl-64/s_asinh.c (__asinh): Likewise. * sysdeps/ieee754/dbl-64/s_atan.c (__signArctan): Likewise. * sysdeps/ieee754/dbl-64/s_scalbln.c (__scalbln): Likewise. * sysdeps/ieee754/dbl-64/s_scalbn.c (__scalbn): Likewise. * sysdeps/ieee754/dbl-64/s_sin.c (do_sin): Likewise. (__sin): Likewise. * sysdeps/ieee754/dbl-64/s_sincos.c (__sincos): Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c (__nearbyint): Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_scalbln.c (__scalbln): Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_scalbn.c (__scalbn): Likewise. * sysdeps/ieee754/flt-32/e_atanhf.c (__ieee754_atanhf): Likewise. * sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r): Likewise. * sysdeps/ieee754/flt-32/e_jnf.c (__ieee754_jnf): Likewise. (__ieee754_ynf): Likewise. * sysdeps/ieee754/flt-32/s_asinhf.c (__asinhf): Likewise. * sysdeps/ieee754/flt-32/s_scalbnf.c (__scalbnf): Likewise. * sysdeps/ieee754/k_standard.c (__kernel_standard): Likewise. * sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_jnl): Likewise. (__ieee754_ynl): Likewise. * sysdeps/ieee754/ldbl-128/s_scalblnl.c (__scalblnl): Likewise. * sysdeps/ieee754/ldbl-128/s_scalbnl.c (__scalbnl): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_jnl): Likewise. (__ieee754_ynl): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fmal.c (__fmal): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_scalblnl.c (__scalblnl): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_scalbnl.c (__scalbnl): Likewise. * sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_jnl): Likewise. (__ieee754_ynl) * sysdeps/ieee754/ldbl-96/s_asinhl.c (__asinhl): Likewise. * sysdeps/ieee754/ldbl-96/s_scalblnl.c (__scalblnl): Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-copysign.c (copysignl): Likewise. * sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise. * sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
2018-09-14Use rint functions not __rint functions in glibc libm.Joseph Myers
Continuing the move to use, within libm, public names for libm functions that can be inlined as built-in functions on many architectures, this patch moves calls to __rint functions to call the corresponding rint names instead, with asm redirection to __rint when the calls are not inlined. The x86_64 math_private.h is removed as no longer useful after this patch. This patch is relative to a tree with my floor patch <https://sourceware.org/ml/libc-alpha/2018-09/msg00148.html> applied, and much the same considerations arise regarding possibly replacing an IFUNC call with a direct inline expansion. Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (rint): Redirect using MATH_REDIRECT. * sysdeps/aarch64/fpu/s_rint.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/aarch64/fpu/s_rintf.c: Likewise. * sysdeps/alpha/fpu/s_rint.c: Likewise. * sysdeps/alpha/fpu/s_rintf.c: Likewise. * sysdeps/i386/fpu/s_rintl.c: Likewise. * sysdeps/ieee754/dbl-64/s_rint.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c: Likewise. * sysdeps/ieee754/float128/s_rintf128.c: Likewise. * sysdeps/ieee754/flt-32/s_rintf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_rintl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_rintl.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rint.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rintf.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rintl.c: Likewise. * sysdeps/powerpc/fpu/s_rint.c: Likewise. * sysdeps/powerpc/fpu/s_rintf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_rint.c: Likewise. * sysdeps/riscv/rvf/s_rintf.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_rint.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_rint.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/x86_64/fpu/math_private.h: Remove file. * math/e_scalb.c (invalid_fn): Use rint functions instead of __rint variants. * math/e_scalbf.c (invalid_fn): Likewise. * math/e_scalbl.c (invalid_fn): Likewise. * sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Likewise. * sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r): Likewise. * sysdeps/ieee754/k_standard.c (__kernel_standard): Likewise. * sysdeps/ieee754/k_standardl.c (__kernel_standard_l): Likewise. * sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/powerpc/powerpc32/fpu/s_llrint.c (__llrint): Likewise. * sysdeps/powerpc/powerpc32/fpu/s_llrintf.c (__llrintf): Likewise.
2018-09-05Remove alpha math_private.h.Joseph Myers
After some math_private.h cleanups (in particulat math-barriers.h being split out), the only thing left in the alpha math_private.h was macro definitions of __isnan and __isnanf, apparently (based on the comments) intended to avoid problems with inline definitions in other math_private.h files. Those inline definitions were removed in commit fe8c2b33aed067282ecac0cc3fdff1feef88548b, and the alpha math_private.h is no longer needed; this patch removes it. Tested with build-many-glibcs.py that installed stripped shared libraries for alpha are unchanged by the patch. * sysdeps/alpha/fpu/math_private.h: Remove.
2018-05-09Move math_opt_barrier, math_force_eval to separate math-barriers.h.Joseph Myers
This patch continues cleaning up math_private.h by moving the math_opt_barrier and math_force_eval macros to a separate header math-barriers.h. At present, those macros are inside a "#ifndef math_opt_barrier" in math_private.h to allow architectures to override them and then use a separate math-barriers.h header, no such #ifndef or #include_next is needed; architectures just have their own alternative version of math-barriers.h when providing their own optimized versions that avoid going through memory unnecessarily. The generic math-barriers.h has a comment added to document these two macros. In this patch, math_private.h is made to #include <math-barriers.h>, so files using these macros do not need updating yet. That is because of uses of math_force_eval in math_check_force_underflow and math_check_force_underflow_nonneg, which are still defined in math_private.h. Once those are moved out to a separate header, that separate header can be made to include <math-barriers.h>, as can the other files directly using these barrier macros, and then the include of <math-barriers.h> from math_private.h can be removed. Tested for x86_64 and x86. Also tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by this patch. * sysdeps/generic/math-barriers.h: New file. * sysdeps/generic/math_private.h [!math_opt_barrier] (math_opt_barrier): Move to math-barriers.h. [!math_opt_barrier] (math_force_eval): Likewise. * sysdeps/aarch64/fpu/math-barriers.h: New file. * sysdeps/aarch64/fpu/math_private.h (math_opt_barrier): Move to math-barriers.h. (math_force_eval): Likewise. * sysdeps/alpha/fpu/math-barriers.h: New file. * sysdeps/alpha/fpu/math_private.h (math_opt_barrier): Move to math-barriers.h. (math_force_eval): Likewise. * sysdeps/x86/fpu/math-barriers.h: New file. * sysdeps/i386/fpu/fenv_private.h (math_opt_barrier): Move to math-barriers.h. (math_force_eval): Likewise. * sysdeps/m68k/m680x0/fpu/math_private.h: Move to.... * sysdeps/m68k/m680x0/fpu/math-barriers.h: ... here. Adjust multiple-include guard for rename. * sysdeps/powerpc/fpu/math-barriers.h: New file. * sysdeps/powerpc/fpu/math_private.h (math_opt_barrier): Move to math-barriers.h. (math_force_eval): Likewise.
2018-03-15Remove all target specific __ieee754_sqrt(f/l) inlinesWilco Dijkstra
Remove the now unused target specific__ieee754_sqrt(f/l) inlines. Also remove inlines of sqrt which are for really old GCC versions. Removing these is desirable, under the general principle of leaving such inlining to the compiler rather than trying to do it in installed headers, especially when only very old compilers are affected. Note that removing inlines for __ieee754_sqrt disables inlining in the sqrt wrapper functions. Given the sqrt function will typically only be called for negative arguments, it doesn't matter whether the inlining happens or not. * sysdeps/aarch64/fpu/math_private.h (__ieee754_sqrt): Remove. (__ieee754_sqrtf): Remove. * sysdeps/alpha/fpu/math_private.h (__ieee754_sqrt): Remove. (__ieee754_sqrtf): Remove. * sysdeps/generic/math-type-macros.h (M_SQRT): Use sqrt. * sysdeps/m68k/m680x0/fpu/mathimpl.h (__ieee754_sqrt): Remove. * sysdeps/powerpc/fpu/math_private.h (__ieee754_sqrt): Remove. (__ieee754_sqrtf): Remove. * sysdeps/s390/fpu/bits/mathinline.h: Remove file. * sysdeps/sparc/fpu/bits/mathinline.h (sqrt) Remove. (sqrtf): Remove. (sqrtl): Remove. (__ieee754_sqrt): Remove. (__ieee754_sqrtf): Remove. (__ieee754_sqrtl): Remove. * sysdeps/m68k/m680x0/fpu/mathimpl.h (__ieee754_sqrt): Remove. * sysdeps/x86/fpu/math_private.h (__ieee754_sqrt): Remove. * sysdeps/x86_64/fpu/math_private.h (__ieee754_sqrt): Remove. (__ieee754_sqrtf): Remove. (__ieee754_sqrtl): Remove.
2018-03-10Don't include math.h/math_private.h in math_ldbl_opt.h.Zack Weinberg
The sysdeps/ieee754/ldbl-opt version of math_ldbl_opt.h includes math.h and math_private.h, despite not having any need for those headers itself; the sysdeps/generic version doesn't. About 20 files are relying on math_ldbl_opt.h to include math.h and/or math_private.h for them, even though none of them necessarily used on a platform that needs ldbl-opt support. * sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h: Don't include math.h or math_private.h. * sysdeps/alpha/fpu/s_isnan.c * sysdeps/ieee754/ldbl-128ibm/s_ceill.c * sysdeps/ieee754/ldbl-128ibm/s_floorl.c * sysdeps/ieee754/ldbl-128ibm/s_llrintl.c * sysdeps/ieee754/ldbl-128ibm/s_llroundl.c * sysdeps/ieee754/ldbl-128ibm/s_lrintl.c * sysdeps/ieee754/ldbl-128ibm/s_lroundl.c * sysdeps/ieee754/ldbl-128ibm/s_rintl.c * sysdeps/ieee754/ldbl-128ibm/s_roundl.c * sysdeps/ieee754/ldbl-128ibm/s_truncl.c * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/e_hypot.c * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/e_hypotf.c: * sysdeps/powerpc/powerpc64/fpu/multiarch/e_expf.c * sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot.c * sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf.c: Include math_private.h. * sysdeps/ieee754/ldbl-64-128/s_finitel.c * sysdeps/ieee754/ldbl-64-128/s_fpclassifyl.c * sysdeps/ieee754/ldbl-64-128/s_isinfl.c * sysdeps/ieee754/ldbl-64-128/s_isnanl.c * sysdeps/ieee754/ldbl-64-128/s_signbitl.c * sysdeps/powerpc/power7/fpu/s_logb.c: Include math.h and math_private.h.
2018-01-27Update Alpha libm-test-ulpsJames Clarke
* sysdeps/alpha/fpu/libm-test-ulps: Update. Signed-off-by: James Clarke <jrtc27@jrtc27.com>
2018-01-04alpha: Remove s_trunc{f} implementation (BZ#22666)Adhemerval Zanella
As discussed in libc-alpha [1], alpha trunc{f} implementation uses addt/suc and subt/suc and although the Alpha Architecture Handbook version 3 states that that ADDx SUBx OUTPUT Exceptions (B.3 Mapping to IEEE Standard) should not generate Inexact if INE bit is set, the Alpha 21264 [2] chip manual (A.8 IEEE Floating-Point Conformance) states that ADDx SUBx OUTPUT does generate inexact exception for inexact result regardless. As Joseph noted [3] to correctly fix it on alpha we need to either avoid the instruction or avoid any inexact bit from it being set on return from the function (while preserving the inexact bit that might be set on the entry to the function). The later will result mf_fpcr followed by a mt_fpcr to get and set the fpcr which will defeat the optimization itself. So the patch just remove the alpha optimized and rely on generic implementation. It fixes the math/test-*-{trunc} on alpha. [BZ #15479] [BZ #22666] * sysdeps/alpha/fpu/s_trunc.c: Remove file. * sysdeps/alpha/fpu/s_truncf.c: Likewise. [1] https://sourceware.org/ml/libc-alpha/2018-01/msg00114.html [2] https://www.star.bnl.gov/public/daq/HARDWARE/21264_data_sheet.pdf [3] https://sourceware.org/ml/libc-alpha/2018-01/msg00086.html Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2018-01-04alpha: Remove s_ceil{f} and s_floor{f} implementation (BZ#22665)Adhemerval Zanella
As discussed in libc-alpha [1], alpha ceil{f} and floor{f} implementation uses cvttq/svm and although the Alpha Architecture Handbook version 3 states that that CVTfi OUTPUT Exceptions (B.3 Mapping to IEEE Standard) should not generate Inexact if INE bit is set on fpcr, the Alpha 21264 [1] chip manual (A.8 IEEE Floating-Point Conformance) states that CVTfi and CVTif OUTPUT does generate inexact exception for inexact result regardless. As Joseph noted [2] to correctly fix it on alpha we need to either avoid the instruction or avoid any inexact bit from it being set on return from the function (while preserving the inexact bit that might be set on the entry to the function). The later will result mf_fpcr followed by a mt_fpcr to get and set the fpcr which will defeat the optimization itself. So the patch just remove the alpha optimized and rely on generic implementation. It fixes the math/test-*-{ceil,floor} on alpha. [BZ #15479] [BZ #22665] * sysdeps/alpha/fpu/s_ceil.c: Remove file. * sysdeps/alpha/fpu/s_ceilf.c: Likewise. * sysdeps/alpha/fpu/s_floor.c: Likewise. * sysdeps/alpha/fpu/s_floorf.c: Likewise. [1] https://www.star.bnl.gov/public/daq/HARDWARE/21264_data_sheet.pdf [2] https://sourceware.org/ml/libc-alpha/2018-01/msg00086.html Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2018-01-02Remove alpha specific fmax, fmin to fix sNaN handling [BZ #22660]Aurelien Jarno
Various fmax and fmin function implementations mishandle sNaN arguments: (a) When both arguments are NaNs, the return value should be a qNaN, but sometimes it is an sNaN if at least one argument is an sNaN. (b) Under TS 18661-1 semantics, if either argument is an sNaN then the result should be a qNaN (whereas if one argument is a qNaN and the other is not a NaN, the result should be the non-NaN argument). Various implementations treat sNaNs like qNaNs here. One way to fix that is to detect the sNaN and add a special case. That said there is no FPU instruction to do that, so it requires transfering the FP value to an integer register and testing bits. This becomes quite complicated so it's probably better to just use the generic versions of these functions which just do that through issignaling. Changelog: [BZ #22660] * sysdeps/alpha/fpu/s_fmax.S: Remove file. * sysdeps/alpha/fpu/s_fmaxf.S: Likewise. * sysdeps/alpha/fpu/s_fmin.S: Likewise. * sysdeps/alpha/fpu/s_fminf.S: Likewise.
2018-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
* 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.
2017-12-06Update Alpha libm-test-ulpsAdhemerval Zanella
* sysdeps/alpha/fpu/libm-test-ulps: Update. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-28Use libm_alias_float for alpha.Joseph Myers
Continuing the preparation for additional _FloatN / _FloatNx function aliases, this patch makes alpha libm function implementations use libm_alias_float macros to define function aliases. In the case of the ABI compatibility for complex functions, libm_alias_float_other is used, with the cfloat_versions macro adjusted to take a function name argument without the trailing 'f' to facilitate this, and cfloat_versions dealing with calling libm_alias_float_other (except for clog10f, which doesn't use that macro because of the complexity associated with __clog10f also being exported). Tested with build-many-glibcs.py for alpha-linux-gnu that installed stripped shared libraries are unchanged by the patch. * sysdeps/alpha/fpu/cfloat-compat.h: Include <libm-alias-float.h>. (cfloat_versions): Take function argument without trailing 'f'. Call libm_alias_float_other. * sysdeps/alpha/fpu/cabsf.c: Update call to cfloat_versions. * sysdeps/alpha/fpu/cargf.c: Likewise. * sysdeps/alpha/fpu/cimagf.c: Likewise. * sysdeps/alpha/fpu/conjf.c: Likewise. * sysdeps/alpha/fpu/crealf.c: Likewise. * sysdeps/alpha/fpu/s_cacosf.c: Likewise. * sysdeps/alpha/fpu/s_cacoshf.c: Likewise. * sysdeps/alpha/fpu/s_casinf.c: Likewise. * sysdeps/alpha/fpu/s_casinhf.c: Likewise. * sysdeps/alpha/fpu/s_catanf.c: Likewise. * sysdeps/alpha/fpu/s_catanhf.c: Likewise. * sysdeps/alpha/fpu/s_ccosf.c: Likewise. * sysdeps/alpha/fpu/s_ccoshf.c: Likewise. * sysdeps/alpha/fpu/s_cexpf.c: Likewise. * sysdeps/alpha/fpu/s_clogf.c: Likewise. * sysdeps/alpha/fpu/s_cpowf.c: Likewise. * sysdeps/alpha/fpu/s_cprojf.c: Likewise. * sysdeps/alpha/fpu/s_csinf.c: Likewise. * sysdeps/alpha/fpu/s_csinhf.c: Likewise. * sysdeps/alpha/fpu/s_csqrtf.c: Likewise. * sysdeps/alpha/fpu/s_ctanf.c: Likewise. * sysdeps/alpha/fpu/s_ctanhf.c: Likewise. * sysdeps/alpha/fpu/s_clog10f.c: Include <libm-alias-float.h>. (clog10f): Use libm_alias_float_other. * sysdeps/alpha/fpu/s_ceilf.c: Include <libm-alias-float.h>. (ceilf): Define using libm_alias_float. * sysdeps/alpha/fpu/s_copysignf.c: Include <libm-alias-float.h>. (copysignf): Define using libm_alias_float. * sysdeps/alpha/fpu/s_fabsf.c: Include <libm-alias-float.h>. (fabsf): Define using libm_alias_float. * sysdeps/alpha/fpu/s_floorf.c: Include <libm-alias-float.h>. (floorf): Define using libm_alias_float. * sysdeps/alpha/fpu/s_fmax.S: Include <libm-alias-float.h>. (fmaxf): Define using libm_alias_float. * sysdeps/alpha/fpu/s_fmin.S: Include <libm-alias-float.h>. (fminf): Define using libm_alias_float. * sysdeps/alpha/fpu/s_lrintf.c: Include <libm-alias-float.h>. (lrintf): Define using libm_alias_float. (llrintf): Likewise. * sysdeps/alpha/fpu/s_lroundf.c: Include <libm-alias-float.h>. (lroundf): Define using libm_alias_float. (llroundf): Likewise. * sysdeps/alpha/fpu/s_rintf.c: Include <libm-alias-float.h>. (rintf): Define using libm_alias_float. * sysdeps/alpha/fpu/s_truncf.c: Include <libm-alias-float.h>. (truncf): Define using libm_alias_float.
2017-11-28Use libm_alias_double for alpha.Joseph Myers
Continuing the preparation for additional _FloatN / _FloatNx function aliases, this patch makes alpha libm function implementations use libm_alias_double to define function aliases. This also simplifies the code because the compatibility for long double = double is handled by libm_alias_double instead of locally in each source file. Tested with build-many-glibcs.py for alpha-linux-gnu that installed stripped shared libraries are unchanged by the patch. * sysdeps/alpha/fpu/s_ceil.c: Include <libm-alias-double.h>. (ceil): Define using libm_alias_double. * sysdeps/alpha/fpu/s_copysign.c: Include <libm-alias-double.h>. (copysign): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fabs.c: Include <libm-alias-double.h>. (fabs): Define using libm_alias_double. * sysdeps/alpha/fpu/s_floor.c: Include <libm-alias-double.h>. (floor): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fmax.S: Include <libm-alias-double.h>. (fmax): Define using libm_alias_double. * sysdeps/alpha/fpu/s_fmin.S: Include <libm-alias-double.h>. (fmin): Define using libm_alias_double. * sysdeps/alpha/fpu/s_lrint.c: Include <libm-alias-double.h>. (lrint): Define using libm_alias_double. (llrint): Likewise. * sysdeps/alpha/fpu/s_lround.c: Include <libm-alias-double.h>. (lround): Define using libm_alias_double. (llround): Likewise. * sysdeps/alpha/fpu/s_rint.c: Include <libm-alias-double.h>. (rint): Define using libm_alias_double. * sysdeps/alpha/fpu/s_trunc.c: Include <libm-alias-double.h>. (trunc): Define using libm_alias_double.
2017-10-04Use libm_alias_double for dbl-64 fma.Joseph Myers
This patch makes dbl-64 fma use libm_alias_double. The ldbl-opt version is removed. The sparc32 version no longer needs to handle compat symbols, while alpha needs a new wrapper to avoid getting the ldbl-128 version (where ldbl-opt is earlier in the list of sysdeps directories, so previously fma came from there). Tested for x86_64, and tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by the patch. * sysdeps/ieee754/dbl-64/s_fma.c: Include <libm-alias-double.h>. (fma): Define using libm_alias_double. * sysdeps/ieee754/ldbl-opt/s_fma.c: Remove file. * sysdeps/sparc/sparc32/fpu/s_fma.c: Do not include <math_ldbl_opt.h>. (fmal): Do not define as compat symbol here. * sysdeps/alpha/fpu/s_fma.c: New file.
2017-10-04Remove alpha nearbyint wrapper.Joseph Myers
Given my recent changes, sysdeps/alpha/fpu/s_nearbyint.c is no longer needed: it just includes the dbl-64/wordsize-64 version, which is the one that would be used anyway, and defines a compat symbol, duplicating the same compat symbol defined by the dbl-64/wordsize-64 version through use of libm_alias_double. Thus, this patch removes the redundant wrapper. Tested with build-many-glibcs.py that installed stripped shared libraries are unchanged for alpha. * sysdeps/alpha/fpu/s_nearbyint.c: Remove file.
2017-09-28Remove ancient __signbit inlinesWilco Dijkstra
Remove __signbit inlines from mathinline.h. Math.h already uses the builtin when supported, so additional inlines are only used on pre 4.0 GCCs. Similarly remove ancient copysign and fabs inlines. * sysdeps/alpha/fpu/bits/mathinline.h: Delete file. * sysdeps/ia64/fpu/bits/mathinline.h: Delete file. * sysdeps/m68k/coldfire/fpu/bits/mathinline.h: Delete file. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h: (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/powerpc/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/s390/fpu/bits/mathinline.h: (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove * sysdeps/sparc/fpu/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/tile/bits/mathinline.h: Delete file. * sysdeps/x86/fpu/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove.
2017-09-28Simplify C99 isgreater macrosWilco Dijkstra
Simplify the C99 isgreater macros. Although some support was added in GCC 2.97, not all targets added support until GCC 3.1. Therefore only use the builtins in math.h from GCC 3.1 onwards, and defer to generic macros otherwise. Improve the generic isunordered macro to use compares rather than call fpclassify twice - this is not only faster but also correct for signaling NaNs. * math/math.h: Improve handling of C99 isgreater macros. * sysdeps/alpha/fpu/bits/mathinline.h: Remove isgreater macros. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h: Likewise. * sysdeps/powerpc/bits/mathinline.h: Likewise. * sysdeps/sparc/fpu/bits/mathinline.h: Likewise. * sysdeps/x86/fpu/bits/mathinline.h: Likewise.
2017-09-01Obsolete pow10 functions.Joseph Myers
This patch obsoletes the pow10, pow10f and pow10l functions (makes them into compat symbols, not available for new ports or static linking). The exp10 names for these functions are standardized (in TS 18661-4) and were added in the same glibc version (2.1) as pow10 so source code can change to use them without any loss of portability. Since pow10 is deliberately not provided for _Float128, only exp10, this slightly simplifies moving to the new wrapper templates in the !LIBM_SVID_COMPAT case, by avoiding needing to arrange for pow10, pow10f and pow10l to be defined by those templates. Tested for x86_64, and with build-many-glibcs.py. * manual/math.texi (pow10): Do not document. (pow10f): Likewise. (pow10l): Likewise. * math/bits/mathcalls.h [__USE_GNU] (pow10): Do not declare. * math/bits/math-finite.h [__USE_GNU] (pow10): Likewise. * math/libm-test-exp10.inc (pow10_test): Remove. (do_test): Do not call pow10. * math/w_exp10_compat.c (pow10): Make into compat symbol. [NO_LONG_DOUBLE] (pow10l): Likewise. * math/w_exp10f_compat.c (pow10f): Likewise. * math/w_exp10l_compat.c (pow10l): Likewise. * sysdeps/ia64/fpu/e_exp10.S: Include <shlib-compat.h>. (pow10): Make into compat symbol. * sysdeps/ia64/fpu/e_exp10f.S: Include <shlib-compat.h>. (pow10f): Make into compat symbol. * sysdeps/ia64/fpu/e_exp10l.S: Include <shlib-compat.h>. (pow10l): Make into compat symbol. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Remove pow10. (CFLAGS-nldbl-pow10.c): Remove variable.. * sysdeps/ieee754/ldbl-opt/nldbl-pow10.c: Remove file. * sysdeps/ieee754/ldbl-opt/w_exp10_compat.c (pow10l): Condition on [SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27)]. * sysdeps/ieee754/ldbl-opt/w_exp10l_compat.c (compat_symbol): Undefine and redefine. (pow10l): Make into compat symbol. * sysdeps/aarch64/libm-test-ulps: Remove pow10 ulps. * sysdeps/alpha/fpu/libm-test-ulps: Likewise. * sysdeps/arm/libm-test-ulps: Likewise. * sysdeps/hppa/fpu/libm-test-ulps: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise. * sysdeps/microblaze/libm-test-ulps: Likewise. * sysdeps/mips/mips32/libm-test-ulps: Likewise. * sysdeps/mips/mips64/libm-test-ulps: Likewise. * sysdeps/nios2/libm-test-ulps: Likewise. * sysdeps/powerpc/fpu/libm-test-ulps: Likewise. * sysdeps/powerpc/nofpu/libm-test-ulps: Likewise. * sysdeps/s390/fpu/libm-test-ulps: Likewise. * sysdeps/sh/libm-test-ulps: Likewise. * sysdeps/sparc/fpu/libm-test-ulps: Likewise. * sysdeps/tile/libm-test-ulps: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2017-07-27Update Alpha libm-test-ulpsAdhemerval Zanella
* sysdeps/alpha/fpu/libm-test-ulps: Update.
2017-04-26Add earlyclobber to sqrtt/sqrtf insns.Uros Bizjak
When using software completions, we have to prevent assembler to match input and output operands of sqrtt/sqrtf insn. Add earlyclobber to output operand to avoid unwanted operand matching. 2017-04-14 Uros Bizjak <ubizjak@gmail.com> * sysdeps/alpha/fpu/math_private.h (__ieee754_sqrt): Add earlyclobber to output operand of sqrt insn. (__ieee754_sqrtf): Ditto.
2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
2016-11-04Fix alpha sqrt fegetenv namespace (bug 20768).Joseph Myers
On alpha, sqrt (a C90 function) brings in references to fegetenv (C99), resulting in linknamespace test failures: [initial] __sqrt -> [libm.a(w_sqrt.o)] __ieee754_sqrt -> [libm.a(e_sqrt.o)] __feholdexcept -> [libm.a(feholdexcpt.o)] fegetenv This patch fixes this by making __feholdexcept call __fegetenv instead of fegetenv. Tested for Alpha (compilation only). [BZ #20768] * sysdeps/alpha/fpu/feholdexcpt.c (__feholdexcept): Call __fegetenv instead of fegetenv.
2016-11-04Do not hardcode platform names in manual/libm-err-tab.pl (bug 14139).Joseph Myers
manual/libm-err-tab.pl hardcodes a list of names for particular platforms (mapping from sysdeps directory name to friendly name for the manual). This goes against the principle of keeping information about individual platforms in their corresponding sysdeps directory, and the list is also very out-of-date regarding supported platforms and their corresponding sysdeps directories. This patch fixes this by adding a libm-test-ulps-name file alongside each libm-test-ulps file. The script then gets the friendly name from that file, which is required to exist, so it no longer needs to allow for the mapping being missing. Tested for x86_64. [BZ #14139] * manual/libm-err-tab.pl (%pplatforms): Initialize to empty. (find_files): Obtain platform name from libm-test-ulps-name and store in %pplatforms. (canonicalize_platform): Remove. (print_platforms): Use $pplatforms directly. (by_platforms): Do not allow for platforms missing from %pplatforms. * sysdeps/aarch64/libm-test-ulps-name: New file. * sysdeps/alpha/fpu/libm-test-ulps-name: Likewise. * sysdeps/arm/libm-test-ulps-name: Likewise. * sysdeps/generic/libm-test-ulps-name: Likewise. * sysdeps/hppa/fpu/libm-test-ulps-name: Likewise. * sysdeps/i386/fpu/libm-test-ulps-name: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps-name: Likewise. * sysdeps/ia64/fpu/libm-test-ulps-name: Likewise. * sysdeps/m68k/coldfire/fpu/libm-test-ulps-name: Likewise. * sysdeps/m68k/m680x0/fpu/libm-test-ulps-name: Likewise. * sysdeps/microblaze/libm-test-ulps-name: Likewise. * sysdeps/mips/mips32/libm-test-ulps-name: Likewise. * sysdeps/mips/mips64/libm-test-ulps-name: Likewise. * sysdeps/nios2/libm-test-ulps-name: Likewise. * sysdeps/powerpc/fpu/libm-test-ulps-name: Likewise. * sysdeps/powerpc/nofpu/libm-test-ulps-name: Likewise. * sysdeps/s390/fpu/libm-test-ulps-name: Likewise. * sysdeps/sh/libm-test-ulps-name: Likewise. * sysdeps/sparc/fpu/libm-test-ulps-name: Likewise. * sysdeps/tile/libm-test-ulps-name: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps-name: Likewise.
2016-09-07Add femode_t functions: alpha.Joseph Myers
This patch adds Alpha versions of fegetmode and fesetmode. Untested. * sysdeps/alpha/fpu/fegetmode.c: New file. * sysdeps/alpha/fpu/fesetmode.c: Likewise.
2016-09-07Add femode_t functions.Joseph Myers
TS 18661-1 defines a type femode_t to represent the set of dynamic floating-point control modes (such as the rounding mode and trap enablement modes), and functions fegetmode and fesetmode to manipulate those modes (without affecting other state such as the raised exception flags) and a corresponding macro FE_DFL_MODE. This patch series implements those interfaces for glibc. This first patch adds the architecture-independent pieces, the x86 and x86_64 implementations, and the <bits/fenv.h> and ABI baseline updates for all architectures so glibc keeps building and passing the ABI tests on all architectures. Subsequent patches add the fegetmode and fesetmode implementations for other architectures. femode_t is generally an integer type - the same type as fenv_t, or as the single element of fenv_t where fenv_t is a structure containing a single integer (or the single relevant element, where it has elements for both status and control registers) - except where architecture properties or consistency with the fenv_t implementation indicate otherwise. FE_DFL_MODE follows FE_DFL_ENV in whether it's a magic pointer value (-1 cast to const femode_t *), a value that can be distinguished from valid pointers by its high bits but otherwise contains a representation of the desired register contents, or a pointer to a constant variable (the powerpc case; __fe_dfl_mode is added as an exported constant object, an alias to __fe_dfl_env). Note that where architectures (that share a register between control and status bits) gain definitions of new floating-point control or status bits in future, the implementations of fesetmode for those architectures may need updating (depending on whether the new bits are control or status bits and what the implementation does with previously unknown bits), just like existing implementations of <fenv.h> functions that take care not to touch reserved bits may need updating when the set of reserved bits changes. (As any new bits are outside the scope of ISO C, that's just a quality-of-implementation issue for supporting them, not a conformance issue.) As with fenv_t, femode_t should properly include any software DFP rounding mode (and for both fenv_t and femode_t I'd consider that fragment of DFP support appropriate for inclusion in glibc even in the absence of the rest of libdfp; hardware DFP rounding modes should already be included if the definitions of which bits are status / control bits are correct). Tested for x86_64, x86, mips64 (hard float, and soft float to test the fallback version), arm (hard float) and powerpc (hard float, soft float and e500). Other architecture versions are untested. * math/fegetmode.c: New file. * math/fesetmode.c: Likewise. * sysdeps/i386/fpu/fegetmode.c: Likewise. * sysdeps/i386/fpu/fesetmode.c: Likewise. * sysdeps/x86_64/fpu/fegetmode.c: Likewise. * sysdeps/x86_64/fpu/fesetmode.c: Likewise. * math/fenv.h: Update comment on inclusion of <bits/fenv.h>. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fegetmode): New function declaration. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fesetmode): Likewise. * bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/aarch64/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/alpha/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/arm/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/hppa/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/ia64/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/m68k/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/microblaze/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/mips/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/nios2/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/powerpc/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (__fe_dfl_mode): New variable declaration. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/s390/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/sh/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/sparc/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/tile/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * sysdeps/x86/fpu/bits/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (femode_t): New typedef. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FE_DFL_MODE): New macro. * manual/arith.texi (FE_DFL_MODE): Document macro. (fegetmode): Document function. (fesetmode): Likewise. * math/Versions (fegetmode): New libm symbol at version GLIBC_2.25. (fesetmode): Likewise. * math/Makefile (libm-support): Add fegetmode and fesetmode. (tests): Add test-femode and test-femode-traps. * math/test-femode-traps.c: New file. * math/test-femode.c: Likewise. * sysdeps/powerpc/fpu/fenv_const.c (__fe_dfl_mode): Declare as alias for __fe_dfl_env. * sysdeps/powerpc/nofpu/fenv_const.c (__fe_dfl_mode): Likewise. * sysdeps/powerpc/powerpc32/e500/nofpu/fenv_const.c (__fe_dfl_mode): Likewise. * sysdeps/powerpc/Versions (__fe_dfl_mode): New libm symbol at version GLIBC_2.25. * sysdeps/nacl/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/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/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/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/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2016-08-29Convert remaining complex function to generated filesPaul E. Murphy
Convert cpow, clog, clog10, cexp, csqrt, and cproj functions into generated templates. Note, ldbl-opt still retains s_clog10l.c as the aliasing rules are non-trivial.
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 14:47:48 +0000