hwint.c: Fix loop range.

2012-07-17  Tom de Vries  <tom@codesourcery.com>

	* hwint.c: Fix loop range.

From-SVN: r189577

gcc/ChangeLog

 2012-07-17  Tom de Vries  <tom@codesourcery.com>
 
+	* hwint.c: Fix loop range.
+
+2012-07-17  Tom de Vries  <tom@codesourcery.com>
+
 	* double-int.h (double_int_popcount): New inline function.
 	* hwint.c (popcount_hwi): New function.
 	* hwint.h (popcount_hwi): Declare function.  New inline function.

gcc/hwint.c

@@ -113,8 +113,9 @@ int
 popcount_hwi (unsigned HOST_WIDE_INT x)
 {
   int i, ret = 0;
+  size_t bits = sizeof (x) * CHAR_BIT;
 
-  for (i = 0; i < sizeof (x); i += 1)
+  for (i = 0; i < bits; i += 1)
     {
       ret += x & 1;
       x >>= 1;