re PR sanitizer/61095 (miscompile: tsan is broken in gcc trunk, works in 4.9)

gcc/
	PR tree-optimization/61095
	* tree-ssanames.c (get_nonzero_bits): Fix type extension in wi::shwi.

From-SVN: r210181

gcc/ChangeLog

+2014-05-07  Richard Sandiford  <rsandifo@linux.vnet.ibm.com>
+
+	PR tree-optimization/61095
+	* tree-ssanames.c (get_nonzero_bits): Fix type extension in wi::shwi.
+
 2014-05-07  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/61034

gcc/tree-ssanames.c

@@ -271,7 +271,8 @@ get_nonzero_bits (const_tree name)
     {
       struct ptr_info_def *pi = SSA_NAME_PTR_INFO (name);
       if (pi && pi->align)
-	return wi::shwi (-(int) pi->align | pi->misalign, precision);
+	return wi::shwi (-(HOST_WIDE_INT) pi->align
+			 | (HOST_WIDE_INT) pi->misalign, precision);
       return wi::shwi (-1, precision);
     }