system.h: Include algorithm and utility.

	* system.h: Include algorithm and utility.
	* rtl.h: Do not include utility here.
	* wide-int.h: Ditto.
	* tree-vect-data-refs.c (swap): Remove template.
	(vect_prune_runtime_alias_test_list): Use std::swap instead of swap.

From-SVN: r217348

gcc/ChangeLog

+2014-11-11  Uros Bizjak  <ubizjak@gmail.com>
+
+	* system.h: Include algorithm and utility.
+	* rtl.h: Do not include utility here.
+	* wide-int.h: Ditto.
+	* tree-vect-data-refs.c (swap): Remove template.
+	(vect_prune_runtime_alias_test_list): Use std::swap instead of swap.
+
 2014-11-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 
 	PR bootstrap/63699

gcc/rtl.h

@@ -20,7 +20,6 @@ along with GCC; see the file COPYING3.  If not see
 #ifndef GCC_RTL_H
 #define GCC_RTL_H
 
-#include <utility>
 #include "statistics.h"
 #include "machmode.h"
 #include "input.h"

gcc/system.h

@@ -215,7 +215,9 @@ extern int errno;
 #endif
 
 #ifdef __cplusplus
+# include <algorithm>
 # include <cstring>
+# include <utility>
 #endif
 
 /* Some of glibc's string inlines cause warnings.  Plus we'd rather

gcc/tree-vect-data-refs.c

@@ -2718,14 +2718,6 @@ comp_dr_with_seg_len_pair (const void *p1_, const void *p2_)
   return 0;
 }
 
-template <class T> static void
-swap (T& a, T& b)
-{
-  T c (a);
-  a = b;
-  b = c;
-}
-
 /* Function vect_vfa_segment_size.
 
    Create an expression that computes the size of segment
@@ -2858,7 +2850,7 @@ vect_prune_runtime_alias_test_list (loop_vec_info loop_vinfo)
 	   dr_with_seg_len (dr_b, segment_length_b));
 
       if (compare_tree (DR_BASE_ADDRESS (dr_a), DR_BASE_ADDRESS (dr_b)) > 0)
-	swap (dr_with_seg_len_pair.first, dr_with_seg_len_pair.second);
+	std::swap (dr_with_seg_len_pair.first, dr_with_seg_len_pair.second);
 
       comp_alias_ddrs.safe_push (dr_with_seg_len_pair);
     }
@@ -2908,8 +2900,8 @@ vect_prune_runtime_alias_test_list (loop_vec_info loop_vinfo)
 	     and DR_A1 and DR_A2 are two consecutive memrefs.  */
 	  if (*dr_a1 == *dr_a2)
 	    {
-	      swap (dr_a1, dr_b1);
-	      swap (dr_a2, dr_b2);
+	      std::swap (dr_a1, dr_b1);
+	      std::swap (dr_a2, dr_b2);
 	    }
 
 	  if (!operand_equal_p (DR_BASE_ADDRESS (dr_a1->dr),

gcc/wide-int.h

@@ -216,8 +216,6 @@ along with GCC; see the file COPYING3.  If not see
    the same result as X + X; the precision of the shift amount Y
    can be arbitrarily different from X.  */
 
-
-#include <utility>
 #include "system.h"
 #include "hwint.h"
 #include "signop.h"