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authorAurelien Jarno <aurelien@aurel32.net>2016-08-02 09:18:59 +0200
committerAurelien Jarno <aurelien@aurel32.net>2016-08-02 09:18:59 +0200
commitcb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b (patch)
tree43551aa2edac9c7863c3fce087e901f48c45cb1c /sysdeps/alpha/fpu
parent65cc568cf57156e5230db9a061645e54ff028a41 (diff)
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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.
Diffstat (limited to 'sysdeps/alpha/fpu')
-rw-r--r--sysdeps/alpha/fpu/s_rint.c3
-rw-r--r--sysdeps/alpha/fpu/s_rintf.c3
2 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/alpha/fpu/s_rint.c b/sysdeps/alpha/fpu/s_rint.c
index f33fe72c11..259348afc0 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 1400dfe8d7..645728ad5b 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