Commit graph

9 commits

Author SHA1 Message Date
Elliott Hughes
02c78a3867 Reimplement isinf/isnan/fpclassify.
Also move isinf and isnan into libc like everyone else.

Also move fpclassify to libc like the BSDs (but unlike glibc). We need
this to be able to upgrade our float/double/long double parsing to gdtoa.

Also add some missing aliases. We now have all of:

  isnan, __isnan, isnanf, __isnanf, isnanl, __isnanl,
  isinf, __isinf, isinff, __isinff, isinfl, __isinfl,
  __fpclassify, __fpclassifyd, __fpclassifyf, __fpclassifyl.

Bug: 13469877
Change-Id: I407ffbac06c765a6c5fffda8106c37d7db04f27d
2014-04-14 14:35:47 -07:00
Calin Juravle
f723b70fe0 Emit warnings when linking against imprecise math functions
Change-Id: I3da7b8396a64d7899fcb89452c879806a8a511ff
2014-04-02 19:16:54 +01:00
Calin Juravle
4d77c1151c Fix LP64 libm for 128-bit long doubles
* reworked amd64/_fpmath.h and arm64/_fpmath.h to support 128-bit long
doubles.
* improved tests to cover long double cases
* made modfl an alias for LP32

Tests pass on x86, x86_64, arm, arm64 and mips.

Bug: 12921273

Change-Id: Ibe39acde57972447a8950fa45b1e702acc68ebeb
2014-03-24 11:48:42 +00:00
Elliott Hughes
28ddd91c49 Fix __isnanl on aarch64.
This fixes the math.__isnanl, math.powl, and math.fdiml tests.

Change-Id: I0086e4a1a82d0e2708fa07cf580a6d9778c548f2
2013-12-19 17:13:56 -08:00
Elliott Hughes
20adf52cf2 We actually have modfl.
Change-Id: I22bb4d14f99a418819f2941c2dfec49094807c5f
2013-12-19 11:30:51 -08:00
Elliott Hughes
241608e9ce Don't use weak aliases in libm.
The aarch64 toolchain doesn't support them, and we were already implementing
most of the fake long-double functions differently anyway.

Change-Id: I4a2f2df81972ee9c34ddfe96cec81b126506d881
2013-12-18 17:18:53 -08:00
Elliott Hughes
170dbe25d6 Add a few more missing libm long double stubs.
Change-Id: I6c44b9f3eee730253a958d6cefdac99e6f79da3e
2013-02-07 17:45:11 -08:00
Elliott Hughes
926a307ce1 Add a missing logbl stub.
This doesn't usually matter because there's a weak reference; you'd
miss this if you stopped using s_logb.c though.

Change-Id: I912fceae327a378031cd24a64aefa9dfd84f7f90
2013-02-06 16:07:54 -08:00
Elliott Hughes
a0ee07829a Upgrade libm.
This brings us up to date with FreeBSD HEAD, fixes various bugs, unifies
the set of functions we support on ARM, MIPS, and x86, fixes "long double",
adds ISO C99 support, and adds basic unit tests.

It turns out that our "long double" functions have always been broken
for non-normal numbers. This patch fixes that by not using the upstream
implementations and just forwarding to the regular "double" implementation
instead (since "long double" on Android is just "double" anyway, which is
what BSD doesn't support).

All the tests pass on ARM, MIPS, and x86, plus glibc on x86-64.

Bug: 3169850
Bug: 8012787
Bug: https://code.google.com/p/android/issues/detail?id=6697
Change-Id: If0c343030959c24bfc50d4d21c9530052c581837
2013-02-01 14:51:19 -08:00