Add statements to type switch even if there are no valid types.

[pf3gnuchains/gcc-fork.git] / gcc / cgraph.h

diff --git a/gcc/cgraph.h b/gcc/cgraph.h
index d7ca67c..69bc79c 100644 (file)
--- a/gcc/cgraph.h
+++ b/gcc/cgraph.h
@@ -56,6 +56,7 @@ enum availability
 struct lto_file_decl_data;
 
 extern const char * const cgraph_availability_names[];
+extern const char * const ld_plugin_symbol_resolution_names[];
 
 /* Function inlining information.  */
 
@@ -179,20 +180,6 @@ struct GTY(()) cgraph_clone_info
   bitmap combined_args_to_skip;
 };
 
-enum node_frequency {
-  /* This function most likely won't be executed at all.
-     (set only when profile feedback is available or via function attribute). */
-  NODE_FREQUENCY_UNLIKELY_EXECUTED,
-  /* For functions that are known to be executed once (i.e. constructors, destructors
-     and main function.  */
-  NODE_FREQUENCY_EXECUTED_ONCE,
-  /* The default value.  */
-  NODE_FREQUENCY_NORMAL,
-  /* Optimize this function hard
-     (set only when profile feedback is available or via function attribute). */
-  NODE_FREQUENCY_HOT
-};
-
 
 /* The cgraph data structure.
    Each function decl has assigned cgraph_node listing callees and callers.  */
@@ -246,6 +233,9 @@ struct GTY((chain_next ("%h.next"), chain_prev ("%h.previous"))) cgraph_node {
 
   /* Expected number of executions: calculated in profile.c.  */
   gcov_type count;
+  /* How to scale counts at materialization time; used to merge
+     LTO units with different number of profile runs.  */
+  int count_materialization_scale;
   /* Unique id of the node.  */
   int uid;
   /* Ordering of all cgraph nodes.  */
@@ -298,6 +288,10 @@ struct GTY((chain_next ("%h.next"), chain_prev ("%h.previous"))) cgraph_node {
   /* How commonly executed the node is.  Initialized during branch
      probabilities pass.  */
   ENUM_BITFIELD (node_frequency) frequency : 2;
+  /* True when function can only be called at startup (from static ctor).  */
+  unsigned only_called_at_startup : 1;
+  /* True when function can only be called at startup (from static dtor).  */
+  unsigned only_called_at_exit : 1;
 };
 
 typedef struct cgraph_node *cgraph_node_ptr;
@@ -394,6 +388,9 @@ struct GTY(()) cgraph_indirect_call_info
   HOST_WIDE_INT otr_token;
   /* Type of the object from OBJ_TYPE_REF_OBJECT. */
   tree otr_type;
+  /* Delta by which must be added to this parameter.  For polymorphic calls
+     only.  */
+  tree thunk_delta;
   /* Index of the parameter that is called.  */
   int param_index;
   /* ECF flags determined from the caller.  */
@@ -581,7 +578,7 @@ struct cgraph_node * cgraph_clone_node (struct cgraph_node *, tree, gcov_type, i
                                        int, bool, VEC(cgraph_edge_p,heap) *);
 
 void cgraph_redirect_edge_callee (struct cgraph_edge *, struct cgraph_node *);
-void cgraph_make_edge_direct (struct cgraph_edge *, struct cgraph_node *);
+void cgraph_make_edge_direct (struct cgraph_edge *, struct cgraph_node *, tree);
 
 struct cgraph_asm_node *cgraph_add_asm_node (tree);
 
@@ -598,9 +595,8 @@ struct cgraph_node * cgraph_create_virtual_clone (struct cgraph_node *old_node,
                                                  const char *clone_name);
 
 void cgraph_set_nothrow_flag (struct cgraph_node *, bool);
-void cgraph_set_readonly_flag (struct cgraph_node *, bool);
-void cgraph_set_pure_flag (struct cgraph_node *, bool);
-void cgraph_set_looping_const_or_pure_flag (struct cgraph_node *, bool);
+void cgraph_set_const_flag (struct cgraph_node *, bool, bool);
+void cgraph_set_pure_flag (struct cgraph_node *, bool, bool);
 tree clone_function_name (tree decl, const char *);
 bool cgraph_node_cannot_return (struct cgraph_node *);
 bool cgraph_edge_cannot_lead_to_return (struct cgraph_edge *);
@@ -692,6 +688,7 @@ void varpool_node_set_remove (varpool_node_set, struct varpool_node *);
 void dump_varpool_node_set (FILE *, varpool_node_set);
 void debug_varpool_node_set (varpool_node_set);
 void ipa_discover_readonly_nonaddressable_vars (void);
+bool cgraph_comdat_can_be_unshared_p (struct cgraph_node *);
 
 /* In predict.c  */
 bool cgraph_maybe_hot_edge_p (struct cgraph_edge *e);
@@ -905,6 +902,7 @@ varpool_node_set_nonempty_p (varpool_node_set set)
 static inline bool
 cgraph_only_called_directly_p (struct cgraph_node *node)
 {
+  gcc_assert (!node->global.inlined_to);
   return (!node->needed && !node->address_taken
          && !node->reachable_from_other_partition
          && !DECL_STATIC_CONSTRUCTOR (node->decl)
@@ -918,9 +916,24 @@ cgraph_only_called_directly_p (struct cgraph_node *node)
 static inline bool
 cgraph_can_remove_if_no_direct_calls_p (struct cgraph_node *node)
 {
+  /* Extern inlines can always go, we will use the external definition.  */
+  if (DECL_EXTERNAL (node->decl))
+    return true;
   return !node->address_taken && cgraph_can_remove_if_no_direct_calls_and_refs_p (node);
 }
 
+/* Return true when function NODE can be removed from callgraph
+   if all direct calls are eliminated.  */
+
+static inline bool
+varpool_can_remove_if_no_refs (struct varpool_node *node)
+{
+  return (!node->force_output && !node->used_from_other_partition
+         && (flag_toplevel_reorder || DECL_COMDAT (node->decl)
+             || DECL_ARTIFICIAL (node->decl))
+         && (DECL_COMDAT (node->decl) || !node->externally_visible));
+}
+
 /* Return true when all references to VNODE must be visible in ipa_ref_list.
    i.e. if the variable is not externally visible or not used in some magic
    way (asm statement or such).