cgraph.c (cgraph_add_thunk): Create real function node instead of alias node...

	* cgraph.c (cgraph_add_thunk): Create real function node instead
	of alias node; finalize it and mark needed/reachale; arrange visibility
	to be right and add it into the corresponding same comdat group list.
	(dump_cgraph_node): Dump thunks.
	* cgraph.h (cgraph_first_defined_function, cgraph_next_defined_function,
	cgraph_function_with_gimple_body_p, cgraph_first_function_with_gimple_body,
	cgraph_next_function_with_gimple_body): New functions.
	(FOR_EACH_FUNCTION_WITH_GIMPLE_BODY, FOR_EACH_DEFINED_FUNCTION):
	New macros.
	* ipa-cp.c (ipcp_need_redirect_p): Thunks can't be redirected.
	(ipcp_generate_summary): Use FOR_EACH_FUNCTION_WITH_GIMPLE_BODY.
	* cgraphunit.c (cgraph_finalize_function): Only look into possible
	devirtualization when optimizing.
	(verify_cgraph_node): Verify thunks.
	(cgraph_analyze_function): Analyze thunks.
	(cgraph_mark_functions_to_output): Output thunks only in combination
	with function they are assigned to.
	(assemble_thunk): Turn thunk into non-thunk; don't try to turn
	alias into normal node.
	(assemble_thunks): New functoin.
	(cgraph_expand_function): Use it.
	* lto-cgraph.c (lto_output_node): Stream thunks.
	(input_overwrite_node): Stream in thunks.
	* ipa-pure-const.c (analyze_function): Thunks do nothing interesting.
	* lto-streamer-out.c (lto_output): Do not try to output thunk's body.
	* ipa-inline.c (inline_small_functions): Use FOR_EACH_DEFINED_FUNCTION.
	* ipa-inline-analysis.c (compute_inline_parameters): "Analyze" thunks.
	(inline_analyze_function): Do not care about thunk jump functions.
	(inline_generate_summary):Use FOR_EACH_DEFINED_FUNCTION.
	* ipa-prop.c (ipa_prop_write_jump_functions): Use cgraph_function_with_gimple_body_p.
	* passes.c (do_per_function_toporder): Use cgraph_function_with_gimple_body_p.
	(execute_one_pass);Use FOR_EACH_FUNCTION_WITH_GIMPLE_BODY.
	(ipa_write_summaries): Use cgraph_function_with_gimple_body_p.
	(function_called_by_processed_nodes_p): Likewise.
	* lto.c (lto_materialize_function): Use cgraph_function_with_gimple_body_p.
	(add_cgraph_node_to_partition): Do not re-add items to partition; handle thunks.
	(add_varpool_node_to_partition): Do not re-add items to partition.

From-SVN: r173517

1 files changed, 73 insertions, 0 deletions

diff --git a/gcc/cgraph.h b/gcc/cgraph.h
index 35d1a9d..e250ecd 100644
--- a/gcc/cgraph.h
+++ b/gcc/cgraph.h
@@ -695,6 +695,79 @@ varpool_next_static_initializer (struct varpool_node *node)
    for ((node) = varpool_first_static_initializer (); (node); \
         (node) = varpool_next_static_initializer (node))
 
+/* Return first function with body defined.  */
+static inline struct cgraph_node *
+cgraph_first_defined_function (void)
+{
+  struct cgraph_node *node;
+  for (node = cgraph_nodes; node; node = node->next)
+    {
+      if (node->analyzed)
+	return node;
+    }
+  return NULL;
+}
+
+/* Return next reachable static variable with initializer after NODE.  */
+static inline struct cgraph_node *
+cgraph_next_defined_function (struct cgraph_node *node)
+{
+  for (node = node->next; node; node = node->next)
+    {
+      if (node->analyzed)
+	return node;
+    }
+  return NULL;
+}
+
+/* Walk all functions with body defined.  */
+#define FOR_EACH_DEFINED_FUNCTION(node) \
+   for ((node) = cgraph_first_defined_function (); (node); \
+        (node) = cgraph_next_defined_function (node))
+
+
+/* Return true when NODE is a function with Gimple body defined
+   in current unit.  Functions can also be define externally or they
+   can be thunks with no Gimple representation.
+
+   Note that at WPA stage, the function body may not be present in memory.  */
+
+static inline bool
+cgraph_function_with_gimple_body_p (struct cgraph_node *node)
+{
+  return node->analyzed && !node->thunk.thunk_p;
+}
+
+/* Return first function with body defined.  */
+static inline struct cgraph_node *
+cgraph_first_function_with_gimple_body (void)
+{
+  struct cgraph_node *node;
+  for (node = cgraph_nodes; node; node = node->next)
+    {
+      if (cgraph_function_with_gimple_body_p (node))
+	return node;
+    }
+  return NULL;
+}
+
+/* Return next reachable static variable with initializer after NODE.  */
+static inline struct cgraph_node *
+cgraph_next_function_with_gimple_body (struct cgraph_node *node)
+{
+  for (node = node->next; node; node = node->next)
+    {
+      if (cgraph_function_with_gimple_body_p (node))
+	return node;
+    }
+  return NULL;
+}
+
+/* Walk all functions with body defined.  */
+#define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
+   for ((node) = cgraph_first_function_with_gimple_body (); (node); \
+        (node) = cgraph_next_function_with_gimple_body (node))
+
 /* Create a new static variable of type TYPE.  */
 tree add_new_static_var (tree type);