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This patch cherry-pickx 8 commits from glibc which fix various strtod_l
bugs. Additionally, it makes mp_limb_t 64-bit on llp64 targets like
64-bit cygwin.
2023-03-03 niXman <i.nixman@autistici.org>
Jakub Jelinek <jakub@redhat.com>
PR libquadmath/87204
PR libquadmath/94756
* printf/gmp-impl.h (mp_limb_t, mp_limb_signed_t, BITS_PER_MP_LIMB):
Use 64-bit limbs on LLP64 targets.
* strtod/strtod_l.c (round_and_return): Cherry-pick glibc
9310c284ae9 BZ #16151, 4406c41c1d6 BZ #16965 and fcd6b5ac36a
BZ #23279 fixes.
(____STRTOF_INTERNAL): Cherry-pick glibc b0debe14fcf BZ #23007,
5556d30caee BZ #18247, 09555b9721d and c6aac3bf366 BZ #26137 and
d84f25c7d87 fixes.
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This patch extends update-quadmath.py to update fmaq from glibc.
The issue in that function was that quadmath-imp.h had a struct in a
union with mant_high and mant_low fields (up to 64-bit) whereas glibc
has mantissa0, mantissa1, mantissa2 and mantissa3 (up to 32-bit). The
patch changes those fields to be the same as in glibc, moving printf /
strtod code that also uses those fields back to closer to the glibc
form. This allows fmaq to be updated automatically from glibc (which
brings in at least one bug fix from glibc from 2015).
nanq was also using the mant_high field name, and had other issues: it
only partly initialized the union from which a value was returned, and
setting mant_high to 1 meant a signaling NaN would be returned rather
than a quiet NaN. This patch fixes those issues as part of updating
it to use the changed interfaces (but does not fix the issue of not
using the argument).
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
* quadmath-imp.h (ieee854_float128): Use mantissa0, mantissa1,
mantissa2 and mantissa3 fields instead of mant_high and mant_low.
Change nan field to ieee_nan.
* update-quadmath.py (update_sources): Also update fmaq.c.
* math/nanq.c (nanq): Use ieee_nan field of union.
Zero-initialize f. Set quiet_nan field.
* printf/flt1282mpn.c, printf/printf_fphex.c, strtod/mpn2flt128.c,
strtod/strtoflt128.c: Use mantissa0, mantissa1, mantissa2 and
mantissa3 fields. Use ieee_nan and quiet_nan field.
* math/fmaq.c: Regenerate from glibc sources with
update-quadmath.py.
From-SVN: r265874
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compiled with -O0)
PR libquadmath/56379
* strtod/strtod_l.c (mpn_lshift_1): Rewritten as function-like
macro.
From-SVN: r196155
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From-SVN: r195820
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From-SVN: r195699
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2012-12-03 Tobias Burnus <burnus@net-b.de>
* strtod/strtod_l.c (___STRTOF_INTERNAL): Fix exponent
reading.
2012-12-03 Tobias Burnus <burnus@net-b.de>
* gfortran.dg/quad_3.f90: New.
From-SVN: r194100
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after revision 193770)
2012-11-25 Tobias Burnus <burnus@net-b.de>
PR libquadmath/55462
* strtod/strtod_l.c (round_and_return): Use HAVE_FENV_H
instead of nonexisting HAVE_GET_ROUNDING_MODE.
From-SVN: r193796
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2012-11-23 Tobias Burnus <burnus@net-b.de>
Joseph Myers <joseph@codesourcery.com>
* quadmath-rounding-mode.h: New.
* printf/fpioconst.c: Update from GLIBC. Fix strtod rounding.
* printf/fpioconst.h: Ditto.
* printf/printf_fp.c (__quadmath_printf_fp): Update from GLIBC.
Make printf respect the rounding mode for decimal output.
* printf/printf_fphex.c (__quadmath_printf_fphex): Update from
GLIBC. Make printf respect the rounding mode for hex output.
* strtod/strtod_l.c: Update from GLIBC. Make strtod respect the
rounding mode. Fix strtod handling of underflow.
Co-Authored-By: Joseph Myers <joseph@codesourcery.com>
From-SVN: r193770
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* libquadmath.texi (FLT128_DIG, FLT128_MIN_10_EXP,
FLT128_MAX_10_EXP): Document.
(strtoflt128): Remove obsolete comment.
* configure.ac (HAVE_STRTOULL): New check.
* printf/gmp-impl.h (mpn_construct_float128): New prototype,
define.
* printf/mul_n.c: Include <config.h>.
* printf/add_n.c: Likewise.
* printf/cmp.c: Likewise.
* printf/fpioconst.c: Likewise.
* printf/mul_1.c: Likewise.
* printf/rshift.c: Likewise.
* printf/lshift.c: Likewise.
* printf/submul_1.c: Likewise.
* printf/sub_n.c: Likewise.
* printf/divrem.c: Likewise.
* printf/addmul_1.c: Likewise.
* printf/mul.c: Likewise.
* printf/quadmath-printf.h (isupper, isdigit, tolower): Change
to avoid evaluating argument multiple times.
(isxdigit): Redefine.
* strtod/strtoflt128.c: New file.
* strtod/strtod_l.c: New file.
* strtod/mpn2flt128.c: New file.
* strtod/grouping.h: New file.
* strtod/tens_in_limb.c: New file.
* gdtoa/arith.h: Removed.
* gdtoa/gd_qnan.h: Removed.
* gdtoa/gdtoa_fltrnds.h: Removed.
* gdtoa/gdtoa.h: Removed.
* gdtoa/gdtoaimp.h: Removed.
* gdtoa/gethex.c: Removed.
* gdtoa/gmisc.c: Removed.
* gdtoa/hd_init.c: Removed.
* gdtoa/hexnan.c: Removed.
* gdtoa/makefile: Removed.
* gdtoa/misc.c: Removed.
* gdtoa/README.gdtoa: Removed.
* gdtoa/smisc.c: Removed.
* gdtoa/strtodg.c: Removed.
* gdtoa/strtopQ.c: Removed.
* gdtoa/sum.c: Removed.
* quadmath.h (FLT128_DIG, FLT128_MIN_10_EXP, FLT128_MAX_10_EXP):
Define.
* Makefile.am (libquadmath_la_SOURCES): Remove gdtoa/*, add
strtod/strtoflt128.c, strtod/mpn2flt128.c and strtod/tens_in_limb.c.
* config.h.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
From-SVN: r170254
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