[Commits] r16175 - in /fsf/trunk/libc: ChangeLog sysdeps/generic/dl-hash.h

[eglibc@xxxxxxxxxx]

Author: eglibc
Date: Sun Dec 11 00:02:03 2011
New Revision: 16175

Log:
Import glibc-mainline for 2011-12-11

Modified:
    fsf/trunk/libc/ChangeLog
    fsf/trunk/libc/sysdeps/generic/dl-hash.h

Modified: fsf/trunk/libc/ChangeLog
==============================================================================
--- fsf/trunk/libc/ChangeLog (original)
+++ fsf/trunk/libc/ChangeLog Sun Dec 11 00:02:03 2011
@@ -1,3 +1,8 @@
+2011-12-10  Ulrich Drepper  <drepper@xxxxxxxxx>
+
+	* sysdeps/generic/dl-hash.h (_dl_elf_hash): Lift one operation out of
+	the inner loop.
+
 2011-12-06  Andreas Schwab  <schwab@xxxxxxxxxxxxxx>
 
 	[BZ #13472]

Modified: fsf/trunk/libc/sysdeps/generic/dl-hash.h
==============================================================================
--- fsf/trunk/libc/sysdeps/generic/dl-hash.h (original)
+++ fsf/trunk/libc/sysdeps/generic/dl-hash.h Sun Dec 11 00:02:03 2011
@@ -60,9 +60,12 @@
 			 But the following is equivalent and a lot
 			 faster, especially on modern processors.  */
 
-		      hash ^= hi;
 		      hash ^= hi >> 24;
 		    }
+
+		  /* Second part of the modified formula.  This
+		     operation can be lifted outside the loop.  */
+		  hash &= 0x0fffffff;
 		}
 	    }
 	}

_______________________________________________
Commits mailing list
Commits@xxxxxxxxxx
http://eglibc.org/cgi-bin/mailman/listinfo/commits