about summary refs log tree commit diff
path: root/sysdeps/ieee754/ldbl-128ibm/e_exp10l.c
Commit message (Collapse)AuthorAgeFilesLines
* Update copyright dates with scripts/update-copyrightsPaul Eggert2021-01-021-1/+1
| | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
* Add libm_alias_finite for _finite symbolsWilco Dijkstra2020-01-031-1/+2
| | | | | | | | | | | | | | | | | | | This patch adds a new macro, libm_alias_finite, to define all _finite symbol. It sets all _finite symbol as compat symbol based on its first version (obtained from the definition at built generated first-versions.h). The <fn>f128_finite symbols were introduced in GLIBC 2.26 and so need special treatment in code that is shared between long double and float128. It is done by adding a list, similar to internal symbol redifinition, on sysdeps/ieee754/float128/float128_private.h. Alpha also needs some tricky changes to ensure we still emit 2 compat symbols for sqrt(f). Passes buildmanyglibc. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-011-1/+1
|
* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^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.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2017-01-011-1/+1
|
* Update copyright dates with scripts/update-copyrights.Joseph Myers2016-01-041-1/+1
|
* Fix ldbl-128ibm exp10l spurious overflows (bug 16620).Joseph Myers2015-09-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The ldbl-128ibm implementation of exp10l uses a version of log(10) split into high and low parts - but the low part is negative, so causing spurious overflows from __ieee754_expl (exp_high) in cases close to the overflow threshold (I added relevant tests close to the overflow threshold to the testsuite earlier today). The same issue applies close to the underflow threshold as well (except that spurious underflows in IBM long double arithmetic are harder to fix than the other deficiencies, so we might end up permitting those for IBM long double in the libm testsuite, as permitted by ISO C). This patch fixes it to use a low part rounded downward to 48 bits instead. (The choice of 48 instead of 53 bits is to make it more obviously safe even when the low part of the argument is negative.) Tested for powerpc. (Note that because of libgcc bugs with multiplication very close to LDBL_MAX, libgcc also needs patching for all the problem cases to be fixed, but this patch is still safe and correct in the absence of such libgcc fixes.) [BZ #16620] * sysdeps/ieee754/ldbl-128ibm/e_exp10l.c (log10_high): Use value of log (10) rounded downward to 48 bits. (log10_low): Use corresponding low part of log (10).
* This patch renames all uses of __isinf*, __isnan*, __finite* and __signbit* ↵Wilco Dijkstra2015-06-031-1/+1
| | | | to use standard C99 macros. This has no effect on generated code.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
|
* Fix exp10 spurious underflows (bug 16560).Joseph Myers2014-06-251-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes spurious underflows from exp10 for arguments near 0 (part of bug 16560; that bug also includes spurious underflows from exp2, which are not fixed by this patch). The problem is underflows in the internal computation converting the exp10 argument to arguments for exp (with extra precision), and the fix is simply to return 1 early for arguments near enough to 0 (just as arguments with large enough magnitude have their own overflow / underflow logic at the start of the function). Tested x86_64 and x86 and ulps updated accordingly; also tested for powerpc32 and mips64 to validate the ldbl-128ibm and ldbl-128 changes. [BZ #16560] * sysdeps/ieee754/dbl-64/e_exp10.c (__ieee754_exp10): Return 1 for arguments close to 0. * sysdeps/ieee754/ldbl-128/e_exp10l.c (__ieee754_exp10l): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_exp10l.c (__ieee754_exp10l): Likewise. * math/auto-libm-test-in: Add more tests of exp10. * math/auto-libm-test-out: Regenerated. * sysdeps/x86_64/fpu/libm-test-ulps: Update.
* Update copyright notices with scripts/update-copyrightsAllan McRae2014-01-011-1/+1
|
* IBM long double mechanical changes to support little-endianAlan Modra2013-10-041-3/+3
| | | | | | | | | | | | | | | | | | | | | | | http://sourceware.org/ml/libc-alpha/2013-07/msg00001.html This patch starts the process of supporting powerpc64 little-endian long double in glibc. IBM long double is an array of two ieee doubles, so making union ibm_extended_long_double reflect this fact is the correct way to access fields of the doubles. * sysdeps/ieee754/ldbl-128ibm/ieee754.h (union ibm_extended_long_double): Define as an array of ieee754_double. (IBM_EXTENDED_LONG_DOUBLE_BIAS): Delete. * sysdeps/ieee754/ldbl-128ibm/printf_fphex.c: Update all references to ibm_extended_long_double and IBM_EXTENDED_LONG_DOUBLE_BIAS. * sysdeps/ieee754/ldbl-128ibm/e_exp10l.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/e_expl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/ldbl2mpn.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/math_ldbl.h: Likewise. * sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/strtold_l.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/x2y2m1l.c: Likewise.
* Update copyright notices with scripts/update-copyrights.Joseph Myers2013-01-021-1/+1
|
* Fix exp10 inaccuracy and exceptions (bugs 13884, 13914).Joseph Myers2012-05-061-0/+46