Revert: Workaround following [PATCH] Pul all constants last in tree_swap_operands_p

	https://gcc.gnu.org/ml/gcc-patches/2014-09/msg01509.html
	2014-09-22  Alan Lawrence  <alan.lawrence@arm.com>
	gcc/:
        	* fold-const.c (tree_swap_operands_p): Strip only sign-preserving NOPs.

From-SVN: r217927

gcc/ChangeLog

+2014-11-21  Alan Lawrence  <alan.lawrence@arm.com>
+
+	Revert:
+	2014-09-22  Alan Lawrence  <alan.lawrence@arm.com>
+	* fold-const.c (tree_swap_operands_p): Strip only sign-preserving NOPs.
+
 2014-11-21  Andrew Bennett  <andrew.bennett@imgtec.com>
 
 	* config/mips/mips.c (mips_process_sync_loop): Place a 

gcc/fold-const.c

@@ -6606,8 +6606,8 @@ tree_swap_operands_p (const_tree arg0, const_tree arg1, bool reorder)
   if (CONSTANT_CLASS_P (arg0))
     return 1;
 
-  STRIP_SIGN_NOPS (arg0);
-  STRIP_SIGN_NOPS (arg1);
+  STRIP_NOPS (arg0);
+  STRIP_NOPS (arg1);
 
   if (TREE_CONSTANT (arg1))
     return 0;