Fix wordsize-64 cosh regression (bug 14273).

git-mirror · Jun 21, 2012 · b7abb4b · b7abb4b
1 parent 79662d4
commit b7abb4b
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diff --git 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
@@ -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
@@ -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;