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Add a layer of macro indirection for long double files
which need to be built using another typename. Likewise,
add the L(num) macro used in a later patch to override
real constants.
These macros are only defined through the ldbl-128
math_ldbl.h header, thereby implicitly restricting
these macros to machines which back long double
with an IEEE binary128 format.
Likewise, appropriate changes are made for the few
files which indirectly include such ldbl-128 files.
These changes produce identical binaries for s390x,
aarch64, and ppc64.
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Similar to various other bugs in this area, hypot functions can fail
to raise the underflow exception when the result is tiny and inexact
but one or more low bits of the intermediate result that is scaled
down (or, in the i386 case, converted from a wider evaluation format)
are zero. This patch forces the exception in a similar way to
previous fixes.
Note that this issue cannot arise for implementations of hypotf using
double (or wider) for intermediate evaluation (if hypotf should
underflow, that means the double square root is being computed of some
number of the form N*2^-298, for 0 < N < 2^46, which is exactly
represented as a double, and whatever the rounding mode such a square
root cannot have a mantissa with all zeroes after the initial 23
bits). Thus no changes are made to hypotf implementations in this
patch, only to hypot and hypotl.
Tested for x86_64, x86, mips64 and powerpc.
[BZ #18803]
* sysdeps/i386/fpu/e_hypot.S: Use DEFINE_DBL_MIN.
(MO): New macro.
(__ieee754_hypot) [PIC]: Load PIC register.
(__ieee754_hypot): Use DBL_NARROW_EVAL_UFLOW_NONNEG instead of
DBL_NARROW_EVAL.
* sysdeps/ieee754/dbl-64/e_hypot.c (__ieee754_hypot): Use
math_check_force_underflow_nonneg in case where result might be
tiny.
* sysdeps/ieee754/ldbl-128/e_hypotl.c (__ieee754_hypotl):
Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_hypotl.c (__ieee754_hypotl):
Likewise.
* sysdeps/ieee754/ldbl-96/e_hypotl.c (__ieee754_hypotl): Likewise.
* sysdeps/powerpc/fpu/e_hypot.c (__ieee754_hypot): Likewise.
* math/auto-libm-test-in: Add more tests of hypot.
* math/auto-libm-test-out: Regenerated.
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Entire tree edited via find | grep | sed.
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libm is now somewhat integrated with gcc's -ffinite-math-only option
and lots of the wrapper functions have been optimized.
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* locale/C-monetary.c: Set mon_decimal to empty string.
Add missing entry _NL_MONETARY_CRNCYSTR.
* stdio-common/printf_fp.c: If MON_DECIAL_POINT is not provided use
DECIMAL_POINT information.
* locale/C-numeric.c: Set mon_grouping entry to empty string.
* locale/C-time.c: Add date_fmt entries. Remove two wrong entries.
Correct value for number of entries.
* locale/localeconv.c: Normalize result passed back in .grouping.
Fix assignment to .int_* entries.
* locale/Makefile (tests): Add tst-C-locale.
* locale/tst-C-locale.c: New file.
* locale/setlocale.c: Use LOCALEDIR and not LOCALE_PATH to locate
locale files.
* locale/newlocale.c: Likewise.
2000-10-26 GOTO Masanori <gotom@debian.or.jp>
* locale/langinfo.h: Define _DATE_FMT and _NL_W_DATE_FMT.
* locale/categories.def: New support for date_fmt.
* locale/programs/ld-time.c: Likewise.
* locale/programs/locfile-kw.gperf: Likewise.
* locale/programs/locfile-kw.h: Likewise.
* locale/programs/locfile-token.h: Likewise.
2000-10-26 Jakub Jelinek <jakub@redhat.com>
* sysdeps/ieee754/ldbl-128/e_hypotl.c: New.
* math/libm-test.inc (cabs_test, cexp_test, csqrt_test, hypot_test):
Increase precision of constants.
* sysdeps/alpha/fpu/libm-test-ulps: Update.
* sysdeps/arm/libm-test-ulps: Update.
* sysdeps/i386/fpu/libm-test-ulps: Update.
* sysdeps/ia64/fpu/libm-test-ulps: Update.
* sysdeps/m68k/fpu/libm-test-ulps: Update.
* sysdeps/mips/fpu/libm-test-ulps: Update.
* sysdeps/powerpc/fpu/libm-test-ulps: Update.
* sysdeps/sparc/sparc32/fpu/libm-test-ulps: Update.
* sysdeps/sparc/sparc64/fpu/libm-test-ulps: Update.
* sysdeps/sh/sh4/fpu/libm-test-ulps: Update.
* sysdeps/s390/fpu/libm-test-ulps: Update.
2000-10-26 Ulrich Drepper <drepper@redhat.com>
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