re PR middle-end/58547 (rtlanal.c:5482:19: error: comparison between signed and…

re PR middle-end/58547 (rtlanal.c:5482:19: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare])

gcc:

	PR middle-end/58547
	* rtlanal.c (lsb_bitfield_op_p): Make both parts of the comparison
	signed.

From-SVN: r202967

gcc/ChangeLog

+2013-09-27  Iain Sandoe  <iain@codesourcery.com>
+
+	PR middle-end/58547
+	* rtlanal.c (lsb_bitfield_op_p): Make both parts of the comparison
+	signed.
+
 2013-09-27  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/58459

gcc/rtlanal.c

@@ -5476,7 +5476,7 @@ lsb_bitfield_op_p (rtx x)
   if (GET_RTX_CLASS (GET_CODE (x)) == RTX_BITFIELD_OPS)
     {
       enum machine_mode mode = GET_MODE (XEXP (x, 0));
-      unsigned HOST_WIDE_INT len = INTVAL (XEXP (x, 1));
+      HOST_WIDE_INT len = INTVAL (XEXP (x, 1));
       HOST_WIDE_INT pos = INTVAL (XEXP (x, 2));
 
       return (pos == (BITS_BIG_ENDIAN ? GET_MODE_PRECISION (mode) - len : 0));