[obvious] Use std::swap instead of manually swapping in a few more places

	* alias.c (nonoverlapping_memrefs_p): Use std::swap instead of
	manually swapping values.
	* cse.c (fold_rtx): Likewise.
	* lra-eliminations.c (form_sum): Likewise.

From-SVN: r226179

1 files changed, 2 insertions, 3 deletions

diff --git a/gcc/cse.c b/gcc/cse.c
index 96adf18..88c82fc 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -3297,9 +3297,8 @@ fold_rtx (rtx x, rtx_insn *insn)
 	 consistent with the order in X.  */
       if (canonicalize_change_group (insn, x))
 	{
-	  rtx tem;
-	  tem = const_arg0, const_arg0 = const_arg1, const_arg1 = tem;
-	  tem = folded_arg0, folded_arg0 = folded_arg1, folded_arg1 = tem;
+	  std::swap (const_arg0, const_arg1);
+	  std::swap (folded_arg0, folded_arg1);
 	}
 
       apply_change_group ();