about summary refs log tree commit diff
path: root/sysdeps/powerpc/nofpu/Makefile
Commit message (Collapse)AuthorAgeFilesLines
* Implement C23 log10p1Joseph Myers2024-06-171-0/+1
| | | | | | | | | | | | | | C23 adds various <math.h> function families originally defined in TS 18661-4. Add the log10p1 functions (log10(1+x): like log1p, but for base-10 logarithms). This is directly analogous to the log2p1 implementation (except that whereas log2p1 has a smaller underflow range than log1p, log10p1 has a larger underflow range). The test inputs are copied from those for log1p and log2p1, plus a few more inputs in that wider underflow range. Tested for x86_64 and x86, and with build-many-glibcs.py.
* Implement C23 log2p1Joseph Myers2024-05-201-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | C23 adds various <math.h> function families originally defined in TS 18661-4. Add the log2p1 functions (log2(1+x): like log1p, but for base-2 logarithms). This illustrates the intended structure of implementations of all these function families: define them initially with a type-generic template implementation. If someone wishes to add type-specific implementations, it is likely such implementations can be both faster and more accurate than the type-generic one and can then override it for types for which they are implemented (adding benchmarks would be desirable in such cases to demonstrate that a new implementation is indeed faster). The test inputs are copied from those for log1p. Note that these changes make gen-auto-libm-tests depend on MPFR 4.2 (or later). The bulk of the changes are fairly generic for any such new function. (sysdeps/powerpc/nofpu/Makefile only needs changing for those type-generic templates that use fabs.) Tested for x86_64 and x86, and with build-many-glibcs.py.
* Disable use of -fsignaling-nans if compiler does not support itAdhemerval Zanella2022-11-011-12/+12
| | | | Reviewed-by: Fangrui Song <maskray@google.com>
* Add fmaximum, fminimum functionsJoseph Myers2021-09-281-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | C2X adds new <math.h> functions for floating-point maximum and minimum, corresponding to the new operations that were added in IEEE 754-2019 because of concerns about the old operations not being associative in the presence of signaling NaNs. fmaximum and fminimum handle NaNs like most <math.h> functions (any NaN argument means the result is a quiet NaN). fmaximum_num and fminimum_num handle both quiet and signaling NaNs the way fmax and fmin handle quiet NaNs (if one argument is a number and the other is a NaN, return the number), but still raise "invalid" for a signaling NaN argument, making them exceptions to the normal rule that a function with a floating-point result raising "invalid" also returns a quiet NaN. fmaximum_mag, fminimum_mag, fmaximum_mag_num and fminimum_mag_num are corresponding functions returning the argument with greatest or least absolute value. All these functions also treat +0 as greater than -0. There are also corresponding <tgmath.h> type-generic macros. Add these functions to glibc. The implementations use type-generic templates based on those for fmax, fmin, fmaxmag and fminmag, and test inputs are based on those for those functions with appropriate adjustments to the expected results. The RISC-V maintainers might wish to add optimized versions of fmaximum_num and fminimum_num (for float and double), since RISC-V (F extension version 2.2 and later) provides instructions corresponding to those functions - though it might be at least as useful to add architecture-independent built-in functions to GCC and teach the RISC-V back end to expand those functions inline, which is what you generally want for functions that can be implemented with a single instruction. Tested for x86_64 and x86, and with build-many-glibcs.py.
* Make powerpc-nofpu __sqrtsf2, __sqrtdf2 compat symbols (bug 18473).Joseph Myers2018-06-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | powerpc-nofpu libc exports __sqrtsf2 and __sqrtdf2 symbols. The export of these soft-fp symbols is a mistake; they aren't part of the libgcc interface and GCC will never generate code that calls them. This patch makes them into compat symbols (no code built for static libc), moving their sources from the generic soft-fp sources to sysdeps/powerpc/nofpu (the underlying soft-fp FP_SQRT functionality remains of use to implement actual sqrt public interfaces, such as sqrtl / sqrtf128 for which it is used on various platforms, but __sqrt[sdt]f2 are not such interfaces). Tested with build-many-glibcs.py for relevant platforms. [BZ #18473] * soft-fp/sqrttf2.c: Remove file. * soft-fp/sqrtdf2.c: Move to .... * sysdeps/powerpc/nofpu/sqrtdf2.c: ... here. Include <shlib-compat.h>. (__sqrtdf2): Make conditional on [SHLIB_COMPAT (libc, GLIBC_2_3_2, GLIBC_2_28)]. Define as compat symbol. * soft-fp/sqrtsf2.c: Move to .... * sysdeps/powerpc/nofpu/sqrtsf2.c: ... here. Include <shlib-compat.h>. (__sqrtsf2): Make conditional on [SHLIB_COMPAT (libc, GLIBC_2_3_2, GLIBC_2_28)]. Define as compat symbol. * soft-fp/Makefile (gcc-single-routines): Remove sqrtsf2. (gcc-double-routines): Remove sqrtdf2. (gcc-quad-routines): Remove sqrttf2. * sysdeps/nios2/Makefile [$(subdir) = soft-fp] (sysdep_routines): Do not filter out sqrtsf2 and sqrtdf2. * sysdeps/powerpc/nofpu/Makefile [$(subdir) = soft-fp] (sysdep_routines): Add sqrtsf2 and sqrtdf2.
* Fix powerpc-nofpu fmaxmagl, fminmagl spurious "invalid" exception (bug 22691).Joseph Myers2018-01-101-0/+2
| | | | | | | | | | | | | | For soft-float powerpc, fmaxmagl and fminmagl generate spurious "invalid" exceptions for quiet NaN arguments. This is another case of the problems with fabsl inline expansion via comparisons, and so is fixed by building those functions with -fno-builtin-fabsl. Tested for powerpc (soft-float). [BZ #22691] * sysdeps/powerpc/nofpu/Makefile [$(subdir) = math] (CFLAGS-s_fmaxmagl.c): New variable. [$(subdir) = math] (CFLAGS-s_fminmagl.c: Likewise.
* Fix powerpc-nofpu remainderl wrong sign of zero result (bug 22688).Joseph Myers2018-01-091-0/+1
| | | | | | | | | | | | | For soft-float powerpc, the remainderl function produces zero results with the wrong sign for various inputs. This is another instance of the problem with incorrect built-in fabsl expansion, so is fixed by this patch using -fno-builtin-fabsl for this function. Tested for powerpc (soft-float). [BZ #22688] * sysdeps/powerpc/nofpu/Makefile [$(subdir) = math] (CFLAGS-e_remainderl.c): New variable.
* Fix powerpc-nofpu complex long double functions spurious "invalid" exception ↵Joseph Myers2018-01-091-6/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (bug 22687). For soft-float powerpc, various _Complex long double functions generate spurious "invalid" exceptions, even with a compiler with GCC bug 64811 fixed. The problem is GCC's built-in fabsl expansion. Various files are already built with -fno-builtin-fabsl because in this case (IBM long double, for soft-float or e500v1) a fallback fabsl expansion based on comparisons is used, which can produce the wrong sign of a zero result. Those comparisons can also produce spurious exceptions for NaN arguments. Furthermore, __builtin_fpclassify implemently uses __builtin_fabsl, and is unaffected by -fno-builtin-fabsl, and the fpclassify macro uses __builtin_fpclassify in the absence of -fsignaling-nans. Thus, this patch arranges for the problem files using fpclassify to be built with -fsignaling-nans in this case, to avoid spurious exceptions from fpclassify. Tested for powerpc (soft-float). [BZ #22687] * sysdeps/powerpc/nofpu/Makefile (CFLAGS-s_cacosl.c): New variable. (CFLAGS-s_cacoshl.c): Likewise. (CFLAGS-s_casinhl.c): Likewise. (CFLAGS-s_catanl.c): Likewise. (CFLAGS-s_catanhl.c): Likewise. (CFLAGS-s_cexpl.c): Likewise. (CFLAGS-s_ccoshl.c): Add -fsignaling-nans. (CFLAGS-s_csinhl.c): Likewise. (CFLAGS-s_clogl.c): Likewise. (CFLAGS-s_clog10l.c): Likewise. (CFLAGS-s_csinl.c): Likewise. (CFLAGS-s_csqrtl.c): Likewise.
* Use fabs(f/l) rather than __fabsWilco Dijkstra2017-09-291-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | A few math functions still use __fabs(f/l) rather than fabs, which means they won't be inlined. Rename them so they are inlined. Also add -fno-builtin-fabsl to nofpu powerpc makefile to work around BZ #29253. * sysdeps/ieee754/dbl-64/e_lgamma_r.c (__ieee754_lgamma_r): Use fabs rather than __fabs. * sysdeps/ieee754/dbl-64/e_log10.c (__ieee754_log10): Likewise. * sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Likewise. * sysdeps/ieee754/flt-32/e_lgammaf_r.c (__ieee754_lgammaf_r): Use fabsf rather than __fabsf. * sysdeps/ieee754/flt-32/e_log10f.c (__ieee754_log10f): Likewise. * sysdeps/ieee754/flt-32/e_log2f.c (__ieee754_log2f): Likewise. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Use fabsl rather than __fabsl. * sysdeps/ieee754/ldbl-128/e_log10l.c (__ieee754_log10l): Likewise. * sysdeps/ieee754/ldbl-128/e_log2l.c (__ieee754_log2l): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c (__ieee754_lgammal_r): Use fabsl rather than __fabsl. * sysdeps/ieee754/ldbl-128ibm/e_log10l.c (__ieee754_log10l): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_log2l.c (__ieee754_log2l): Likewise. * sysdeps/powerpc/nofpu/Makefile: Add -fno-builtin-fabsl for BZ #29253.
* Move wrappers to libm-compat-calls-autoGabriel F. T. Gomes2017-01-041-5/+5
| | | | | | | | | | This commit moves one step towards the deprecation of wrappers that use _LIB_VERSION / matherr / __kernel_standard functionality, by adding the suffix '_compat' to their filenames and adjusting Makefiles and #includes accordingly. New template wrappers that do not use such functionality will be added by future patches and will be first used by the float128 wrappers.
* Fix soft-float ldbl-128ibm atan2l signs of zero results (bug 16390).Joseph Myers2014-01-031-0/+1
| | | | | | | | | | | This patch fixes bug 16390, incorrect signs of zero results from ldbl-128ibm atan2l, soft-float only. The problem is a longstanding GCC bug with fabsl not being correct for signed zero for soft float, and the fix is using -fno-builtin-fabsl as a workaround, as already done for various other source files. Tested powerpc-nofpu. * sysdeps/powerpc/nofpu/Makefile [$(subdir) = math] (CFLAGS-e_atan2l.c): Use -fno-builtin-fabsl.
* Add powerpc-nofpu/e500 support functions for atomic compound assignment and ↵Joseph Myers2013-11-281-1/+2
| | | | FLT_ROUNDS.
* Extend powerpc-nofpu -fno-builtin-fabsl workaround to more files.Joseph Myers2013-10-101-0/+6
|
* Move powerpc ports pieces to libc.Joseph Myers2013-10-041-0/+24
|
* sysdeps/powerpc/nofpu moved to ports cvs/fedora-glibc-20051003T2040Roland McGrath2005-10-031-9/+0
| | | | | | 2005-10-03 Roland McGrath <roland@redhat.com> * sysdeps/powerpc/nofpu: Directory removed, saved in ports repository.
* (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.Ulrich Drepper2004-12-221-0/+9
|
* 2.5-18.1Jakub Jelinek2007-07-121-9/+0
|
* * configure: Regenerated (using Autoconf 2.54).Roland McGrath2002-10-191-0/+9
* sysdeps/alpha/elf/configure: Likewise. * sysdeps/generic/configure: Likewise. * sysdeps/i386/elf/configure: Likewise. * sysdeps/ia64/elf/configure: Likewise. * sysdeps/mach/hurd/configure: Likewise. * sysdeps/mach/configure: Likewise. * sysdeps/unix/configure: Likewise. * sysdeps/unix/common/configure: Likewise. * sysdeps/unix/sysv/aix/configure: Likewise. * sysdeps/unix/sysv/linux/configure: Likewise. * sysdeps/unix/sysv/linux/mips/configure: Likewise. * sysdeps/x86_64/elf/configure: Likewise. * config.make.in: Nix completely-soft nonsense. * configure.in: Likewise. Under --without-fp, use nofpu subdirectory of machine directories instead of fpu subdirectory. * sysdeps/powerpc/soft-fp/Makefile: Remove cruft added in last change. * sysdeps/powerpc/nofpu/Makefile: Put it in this new file instead. * sysdeps/powerpc/soft-fp/sim-full.c: Moved to ... * sysdeps/powerpc/nofpu/sim-full.c: ... here. * sysdeps/powerpc/soft-fp/fraiseexcpt.c: Moved to ... * sysdeps/powerpc/nofpu/fraiseexcpt.c: ... here. * sysdeps/powerpc/soft-fp/fegetexcept.c: Moved to ... * sysdeps/powerpc/nofpu/fegetexcept.c: ... here. * sysdeps/powerpc/soft-fp/fclrexcpt.c: Moved to ... * sysdeps/powerpc/nofpu/fclrexcpt.c: ... here. * sysdeps/powerpc/soft-fp/ftestexcept.c: Moved to ... * sysdeps/powerpc/nofpu/ftestexcept.c: ... here. * sysdeps/powerpc/soft-fp/fgetexcptflg.c: Moved to ... * sysdeps/powerpc/nofpu/fgetexcptflg.c: ... here. * sysdeps/powerpc/soft-fp/fsetexcptflg.c: Moved to ... * sysdeps/powerpc/nofpu/fsetexcptflg.c: ... here. * sysdeps/powerpc/soft-fp/fedisblxcpt.c: Moved to ... * sysdeps/powerpc/nofpu/fedisblxcpt.c: ... here. * sysdeps/powerpc/soft-fp/feenablxcpt.c: Moved to ... * sysdeps/powerpc/nofpu/feenablxcpt.c: ... here. * sysdeps/powerpc/soft-fp/fegetenv.c: Moved to ... * sysdeps/powerpc/nofpu/fegetenv.c: ... here. * sysdeps/powerpc/soft-fp/fesetenv.c: Moved to ... * sysdeps/powerpc/nofpu/fesetenv.c: ... here. * sysdeps/powerpc/soft-fp/fegetround.c: Moved to ... * sysdeps/powerpc/nofpu/fegetround.c: ... here. * sysdeps/powerpc/soft-fp/fesetround.c: Moved to ... * sysdeps/powerpc/nofpu/fesetround.c: ... here. * sysdeps/powerpc/soft-fp/feupdateenv.c: Moved to ... * sysdeps/powerpc/nofpu/feupdateenv.c: ... here. * sysdeps/powerpc/soft-fp/feholdexcpt.c: Moved to ... * sysdeps/powerpc/nofpu/feholdexcpt.c: ... here. * sysdeps/powerpc/soft-fp/fenv_const.c: Moved to ... * sysdeps/powerpc/nofpu/fenv_const.c: ... here. * sysdeps/powerpc/soft-fp/libm-test-ulps: Moved to ... * sysdeps/powerpc/nofpu/libm-test-ulps: ... here. * sysdeps/powerpc/soft-fp/soft-supp.h: Moved to ... * sysdeps/powerpc/nofpu/soft-supp.h: ... here. * sysdeps/powerpc/soft-fp/Versions (libc: GLIBC_2.3.2): Moved to ... * sysdeps/powerpc/nofpu/Versions: ... here, new file. 2002-10-19 Bruno Haible <bruno@clisp.org> * sysdeps/unix/bsd/bsd4.4/freebsd/sys/sysmacros.h: New file. 2002-10-18 Roland McGrath <roland@redhat.com> * io/Makefile (routines): Add lchmod. * io/sys/stat.h [__USE_BSD] (lchmod): Declare it. * sysdeps/generic/lchmod.c: New file. * sysdeps/mach/hurd/lchmod.c: New file. * io/Versions (libc: GLIBC_2.3.2): New set, add lchmod.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-05 07:35:53 +0000