lex.c (search_line_sse42): Correctly advance the pointer to an aligned address.

	* lex.c (search_line_sse42): Correctly advance the pointer to an
	aligned address.

From-SVN: r229718

libcpp/ChangeLog

+2015-11-03  Uros Bizjak  <ubizjak@gmail.com>
+
+	* lex.c (search_line_sse42): Correctly advance the pointer to an
+	aligned address.
+
 2015-11-02  David Malcolm  <dmalcolm@redhat.com>
 
 	* include/line-map.h (source_location): In the table in the
@@ -486,8 +491,8 @@
 
 2014-12-02  Manuel López-Ibáñez  <manu@gcc.gnu.org>
 
-        * line-map.c (linemap_add): Fix typo.
-        (linemap_line_start): Fix whitespace.
+	* line-map.c (linemap_add): Fix typo.
+	(linemap_line_start): Fix whitespace.
 
 2014-11-29  John Schmerge  <jbschmerge@gmail.com>
 

libcpp/lex.c

@@ -447,7 +447,7 @@ search_line_sse42 (const uchar *s, const uchar *end)
       /* Advance the pointer to an aligned address.  We will re-scan a
 	 few bytes, but we no longer need care for reading past the
 	 end of a page, since we're guaranteed a match.  */
-      s = (const uchar *)((si + 16) & -16);
+      s = (const uchar *)((si + 15) & -16);
     }
 
   /* Main loop, processing 16 bytes at a time.  */