[Adjustments to make ira-compress-live-ranges code compile
 in a gcc-4.7 code base <mikpe@it.uu.se>]

gcc/

2012-10-14  Mikael Pettersson  <mikpe@it.uu.se>

	* ira-build.c: Move tree nodes vector definitions
	above their first reference.

	Partial backport from mainline r187288:

	2012-05-08  Michael Matz  <matz@suse.de>
	* basic-block.h (enum bb_flags): New BB_VISITED flag.

--- gcc-4.7.2/gcc/basic-block.h.~1~	2012-08-06 16:34:27.000000000 +0200
+++ gcc-4.7.2/gcc/basic-block.h	2012-10-14 12:50:09.000000000 +0200
@@ -261,7 +261,10 @@ enum bb_flags
   /* Set on blocks that are in a transaction.  This is calculated on
      demand, and is available after calling
      compute_transaction_bits().  */
-  BB_IN_TRANSACTION = 1 << 13
+  BB_IN_TRANSACTION = 1 << 13,
+
+  /* A general visted flag for passes to use.  */
+  BB_VISITED = 1 << 14
 };
 
 /* Dummy flag for convenience in the hot/cold partitioning code.  */
--- gcc-4.7.2/gcc/ira-build.c.~1~	2012-10-14 11:59:47.000000000 +0200
+++ gcc-4.7.2/gcc/ira-build.c	2012-10-14 12:23:54.000000000 +0200
@@ -1457,6 +1457,10 @@ finish_cost_vectors (void)
 
 
 
+/* Definition of vector of loop tree nodes.  */
+DEF_VEC_P(ira_loop_tree_node_t);
+DEF_VEC_ALLOC_P(ira_loop_tree_node_t, heap);
+
 /* Compute a post-ordering of the reverse control flow of the loop body
    designated by the children nodes of LOOP_NODE, whose body nodes in
    pre-order are input as LOOP_PREORDER.  Return a VEC with a post-order
@@ -2091,10 +2095,6 @@ mark_all_loops_for_removal (void)
       }
 }
 
-/* Definition of vector of loop tree nodes.  */
-DEF_VEC_P(ira_loop_tree_node_t);
-DEF_VEC_ALLOC_P(ira_loop_tree_node_t, heap);
-
 /* Vec containing references to all removed loop tree nodes.  */
 static VEC(ira_loop_tree_node_t,heap) *removed_loop_vec;