From: Joseph Myers <joseph@codesourcery.com>
Date: Thu, 21 Jun 2012 19:26:09 +0000 (+0000)
Subject: Fix wordsize-64 cosh regression (bug 14273).
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=725b8ee08aff8f6a6edf3de90c5e7ef0ffcae2f8;p=thirdparty%2Fglibc.git

Fix wordsize-64 cosh regression (bug 14273).
(cherry picked from commit b7abb4bf78443f4f8d05a9dfa768fdee65b99d42)
---

diff --git a/ChangeLog b/ChangeLog
index 6a9c536141c..cfc58359415 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -9,6 +9,11 @@
 
 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.
+
 	[BZ #14167]
 	* aclocal.m4 (LIBC_TRY_CC_OPTION): New macro.
 	* configure: Regenerated.
diff --git a/NEWS b/NEWS
index a804824d8f5..357e31cc194 100644
--- a/NEWS
+++ b/NEWS
@@ -10,7 +10,7 @@ Version 2.15.1
 * The following bugs are resolved with this release:
 
   411, 2547, 2548, 11365, 11494, 13583, 13731, 13732, 13733, 13747, 13748,
-  13749, 13753, 13771, 13774, 13786, 14048, 14059, 14167
+  13749, 13753, 13771, 13774, 13786, 14048, 14059, 14167, 14273
 
 Version 2.15
 
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/e_cosh.c b/sysdeps/ieee754/dbl-64/wordsize-64/e_cosh.c
index 41dc42c0af5..b8aadabb0eb 100644
--- 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;