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| author | Aurelien Jarno <aurelien@aurel32.net> | 2016-08-02 09:18:59 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2016-08-02 09:18:59 +0200 |
| commit | cb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b (patch) | |
| tree | 43551aa2edac9c7863c3fce087e901f48c45cb1c | |
| parent | 65cc568cf57156e5230db9a061645e54ff028a41 (diff) | |
| download | glibc-cb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b.zip glibc-cb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b.tar.gz glibc-cb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b.tar.bz2 | |
alpha: fix rint on sNaN input
The alpha version of rint wrongly return sNaN for sNaN input. Fix that
by checking for NaN and by returning the input value added with itself
in that case.
Changelog:
* sysdeps/alpha/fpu/s_rint.c (__rint): Add argument with itself
when it is a NaN.
* sysdeps/alpha/fpu/s_rintf.c (__rintf): Likewise.
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_rint.c | 3 | ||||
| -rw-r--r-- | sysdeps/alpha/fpu/s_rintf.c | 3 |
3 files changed, 9 insertions, 0 deletions
@@ -8,6 +8,9 @@ when it is a NaN. [_IEEE_FP_INEXACT] Remove. * sysdeps/alpha/fpu/s_floorf.c (__floorf): Likewise. + * sysdeps/alpha/fpu/s_rint.c (__rint): Add argument with itself + when it is a NaN. + * sysdeps/alpha/fpu/s_rintf.c (__rintf): Likewise. 2016-08-01 Carlos O'Donell <carlos@redhat.com> diff --git a/sysdeps/alpha/fpu/s_rint.c b/sysdeps/alpha/fpu/s_rint.c index f33fe72..259348a 100644 --- a/sysdeps/alpha/fpu/s_rint.c +++ b/sysdeps/alpha/fpu/s_rint.c @@ -23,6 +23,9 @@ double __rint (double x) { + if (isnan (x)) + return x + x; + if (isless (fabs (x), 9007199254740992.0)) /* 1 << DBL_MANT_DIG */ { double tmp1, new_x; diff --git a/sysdeps/alpha/fpu/s_rintf.c b/sysdeps/alpha/fpu/s_rintf.c index 1400dfe..645728a 100644 --- a/sysdeps/alpha/fpu/s_rintf.c +++ b/sysdeps/alpha/fpu/s_rintf.c @@ -22,6 +22,9 @@ float __rintf (float x) { + if (isnanf (x)) + return x + x; + if (isless (fabsf (x), 16777216.0f)) /* 1 << FLT_MANT_DIG */ { /* Note that Alpha S_Floating is stored in registers in a |