From 3cb3fce5a62678369b7d9d5054f6cd8a99c323bd Mon Sep 17 00:00:00 2001
From: bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 19 Nov 2013 12:39:06 +0000
Subject: Small cleanups in cgraph.

	* cgraphunit.c (symtab_terminator): New variable.
	(queued_nodes): Renamed from first.  Use symtab_terminator as
	initializer.
	(analyze_functions): Adjust accordingly.
	(cgraph_process_new_functions): Return void.
	* cgraph.h (cgraph_process_new_functions): Adjust declaration.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205024 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/cgraphunit.c | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

(limited to 'gcc/cgraphunit.c')

diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c
index 2fcd313b853..b84e1989be9 100644
--- a/gcc/cgraphunit.c
+++ b/gcc/cgraphunit.c
@@ -268,11 +268,13 @@ decide_is_symbol_needed (symtab_node *node)
   return false;
 }
 
-/* Head of the queue of nodes to be processed while building callgraph */
+/* Head and terminator of the queue of nodes to be processed while building
+   callgraph.  */
 
-static symtab_node *first = (symtab_node *)(void *)1;
+static symtab_node symtab_terminator;
+static symtab_node *queued_nodes = &symtab_terminator;
 
-/* Add NODE to queue starting at FIRST. 
+/* Add NODE to queue starting at QUEUED_NODES. 
    The queue is linked via AUX pointers and terminated by pointer to 1.  */
 
 static void
@@ -280,25 +282,24 @@ enqueue_node (symtab_node *node)
 {
   if (node->aux)
     return;
-  gcc_checking_assert (first);
-  node->aux = first;
-  first = node;
+  gcc_checking_assert (queued_nodes);
+  node->aux = queued_nodes;
+  queued_nodes = node;
 }
 
 /* Process CGRAPH_NEW_FUNCTIONS and perform actions necessary to add these
    functions into callgraph in a way so they look like ordinary reachable
    functions inserted into callgraph already at construction time.  */
 
-bool
+void
 cgraph_process_new_functions (void)
 {
-  bool output = false;
   tree fndecl;
   struct cgraph_node *node;
   cgraph_node_set_iterator csi;
 
   if (!cgraph_new_nodes)
-    return false;
+    return;
   handle_alias_pairs ();
   /*  Note that this queue may grow as its being processed, as the new
       functions may generate new ones.  */
@@ -313,7 +314,6 @@ cgraph_process_new_functions (void)
 	     it into reachable functions list.  */
 
 	  cgraph_finalize_function (fndecl, false);
-	  output = true;
           cgraph_call_function_insertion_hooks (node);
 	  enqueue_node (node);
 	  break;
@@ -354,7 +354,6 @@ cgraph_process_new_functions (void)
     }
   free_cgraph_node_set (cgraph_new_nodes);
   cgraph_new_nodes = NULL;
-  return output;
 }
 
 /* As an GCC extension we allow redefinition of the function.  The
@@ -985,11 +984,11 @@ analyze_functions (void)
 
       /* Lower representation, build callgraph edges and references for all trivially
          needed symbols and all symbols referred by them.  */
-      while (first != (symtab_node *)(void *)1)
+      while (queued_nodes != &symtab_terminator)
 	{
 	  changed = true;
-	  node = first;
-	  first = (symtab_node *)first->aux;
+	  node = queued_nodes;
+	  queued_nodes = (symtab_node *)queued_nodes->aux;
 	  cgraph_node *cnode = dyn_cast <cgraph_node> (node);
 	  if (cnode && cnode->definition)
 	    {
-- 
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