Fix wordsize-64 cosh regression (bug 14273).

diff --git a/ChangeLog b/ChangeLog
index a754fef619cf80b9c1caf564b42de46f7542794d..f9ccbe6e3bd87bd378d5bb41a88a4f6a7eecf029 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2012-06-21  Joseph Myers  <joseph@codesourcery.com>
 
+       [BZ #14273]
+       * sysdeps/ieee754/dbl-64/wordsize-64/e_cosh.c (__ieee754_cosh):
+       Clear sign bit of 64-bit integer value before comparing against
+       overflow value.
+
        * sysdeps/mach/configure: Regenerated.
 
 2012-06-21  H.J. Lu  <hongjiu.lu@intel.com>

diff --git a/NEWS b/NEWS
index b5edb990ed624295e79243b982515933367b6f06..8797a6bae70412762f3087bdeddedb2b1aa61333 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -30,7 +30,7 @@ Version 2.16
   13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036, 14040, 14043,
   14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064, 14075, 14080,
   14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123, 14134, 14153,
-  14183, 14188, 14199, 14210, 14218, 14229, 14241, 14278
+  14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273, 14278
 
 * Support for the x32 ABI on x86-64 added.  The x32 target is selected by
   configuring glibc with:

diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/e_cosh.c b/sysdeps/ieee754/dbl-64/wordsize-64/e_cosh.c
index b8ab7483042e3926c6300a29eb728626b56b9a06..84593521ccf1d222b18db082b7ad7fecf3635132 100644 (file)
--- a/sysdeps/ieee754/dbl-64/wordsize-64/e_cosh.c
+++ b/sysdeps/ieee754/dbl-64/wordsize-64/e_cosh.c
@@ -67,6 +67,7 @@ __ieee754_cosh (double x)
     /* |x| in [log(maxdouble), overflowthresold] */
        int64_t fix;
        EXTRACT_WORDS64(fix, x);
+       fix &= UINT64_C(0x7fffffffffffffff);
        if (fix <= UINT64_C(0x408633ce8fb9f87d)) {
            w = __ieee754_exp(half*fabs(x));
            t = half*w;