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GNU C Library master sources branch master updated. glibc-2.16-ports-merge-691-g8e18b86
- From: davem at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 17 Nov 2012 23:56:22 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.16-ports-merge-691-g8e18b86
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http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=8e18b86d4a78f1b96d587bb2b369550c664227a3
commit 8e18b86d4a78f1b96d587bb2b369550c664227a3
Author: David S. Miller <davem@davemloft.net>
Date: Fri Nov 16 21:39:54 2012 -0800
Fix BZ #14811 for ldbl-128 too.
[BZ #14811]
* sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Saturate
nonzero exponents with absolute value below 0x1p-128 to +/-
0x1p-128.
diff --git a/ChangeLog b/ChangeLog
index 82c48f8..9bdff02 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2012-11-17 David S. Miller <davem@davemloft.net>
+
+ [BZ #14811]
+ * sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Saturate
+ nonzero exponents with absolute value below 0x1p-128 to +/-
+ 0x1p-128.
+
2012-11-17 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/fxstatat.c: Include <string.h>.
diff --git a/sysdeps/ieee754/ldbl-128/e_powl.c b/sysdeps/ieee754/ldbl-128/e_powl.c
index 40fc314..d131750 100644
--- a/sysdeps/ieee754/ldbl-128/e_powl.c
+++ b/sysdeps/ieee754/ldbl-128/e_powl.c
@@ -149,7 +149,7 @@ __ieee754_powl (long double x, long double y)
{
long double z, ax, z_h, z_l, p_h, p_l;
long double y1, t1, t2, r, s, t, u, v, w;
- long double s2, s_h, s_l, t_h, t_l;
+ long double s2, s_h, s_l, t_h, t_l, ay;
int32_t i, j, k, yisint, n;
u_int32_t ix, iy;
int32_t hx, hy;
@@ -282,6 +282,10 @@ __ieee754_powl (long double x, long double y)
return (hy > 0) ? huge * huge : tiny * tiny;
}
+ ay = y > 0 ? y : -y;
+ if (ay < 0x1p-128)
+ y = y < 0 ? -0x1p-128 : 0x1p-128;
+
n = 0;
/* take care subnormal number */
if (ix < 0x00010000)
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 7 +++++++
sysdeps/ieee754/ldbl-128/e_powl.c | 6 +++++-
2 files changed, 12 insertions(+), 1 deletions(-)
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