diff gcc/cgraphbuild.c @ 16:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents f6334be47118
children 84e7813d76e9
line wrap: on
line diff
--- a/gcc/cgraphbuild.c	Sun Aug 21 07:07:55 2011 +0900
+++ b/gcc/cgraphbuild.c	Fri Oct 27 22:46:09 2017 +0900
@@ -1,6 +1,5 @@
 /* Callgraph construction.
-   Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
-   Free Software Foundation, Inc.
+   Copyright (C) 2003-2017 Free Software Foundation, Inc.
    Contributed by Jan Hubicka
 
 This file is part of GCC.
@@ -22,15 +21,14 @@
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
-#include "tm.h"
+#include "backend.h"
 #include "tree.h"
-#include "tree-flow.h"
-#include "langhooks.h"
-#include "pointer-set.h"
-#include "cgraph.h"
-#include "intl.h"
 #include "gimple.h"
 #include "tree-pass.h"
+#include "cgraph.h"
+#include "gimple-fold.h"
+#include "gimple-iterator.h"
+#include "gimple-walk.h"
 #include "ipa-utils.h"
 #include "except.h"
 
@@ -38,7 +36,7 @@
 struct record_reference_ctx
 {
   bool only_vars;
-  struct varpool_node *varpool_node;
+  class varpool_node *varpool_node;
 };
 
 /* Walk tree and record all calls and references to functions/variables.
@@ -51,7 +49,13 @@
 {
   tree t = *tp;
   tree decl;
-  struct record_reference_ctx *ctx = (struct record_reference_ctx *)data;
+  record_reference_ctx *ctx = (record_reference_ctx *)data;
+
+  t = canonicalize_constructor_val (t, NULL);
+  if (!t)
+    t = *tp;
+  else if (t != *tp)
+    *tp = t;
 
   switch (TREE_CODE (t))
     {
@@ -67,24 +71,16 @@
       decl = get_base_var (*tp);
       if (TREE_CODE (decl) == FUNCTION_DECL)
 	{
+	  cgraph_node *node = cgraph_node::get_create (decl);
 	  if (!ctx->only_vars)
-	  cgraph_mark_address_taken_node (cgraph_node (decl));
-	  ipa_record_reference (NULL, ctx->varpool_node,
-			        cgraph_node (decl), NULL,
-			        IPA_REF_ADDR, NULL);
+	    node->mark_address_taken ();
+	  ctx->varpool_node->create_reference (node, IPA_REF_ADDR);
 	}
 
-      if (TREE_CODE (decl) == VAR_DECL)
+      if (VAR_P (decl))
 	{
-	  struct varpool_node *vnode = varpool_node (decl);
-	  if (lang_hooks.callgraph.analyze_expr)
-	    lang_hooks.callgraph.analyze_expr (&decl, walk_subtrees);
-	  varpool_mark_needed_node (vnode);
-	  if (vnode->alias && vnode->extra_name)
-	    vnode = vnode->extra_name;
-	  ipa_record_reference (NULL, ctx->varpool_node,
-				NULL, vnode,
-				IPA_REF_ADDR, NULL);
+	  varpool_node *vnode = varpool_node::get_create (decl);
+	  ctx->varpool_node->create_reference (vnode, IPA_REF_ADDR);
 	}
       *walk_subtrees = 0;
       break;
@@ -97,9 +93,6 @@
 	  *walk_subtrees = 0;
 	  break;
 	}
-
-      if ((unsigned int) TREE_CODE (t) >= LAST_AND_UNUSED_TREE_CODE)
-	return lang_hooks.callgraph.analyze_expr (tp, walk_subtrees);
       break;
     }
 
@@ -109,7 +102,7 @@
 /* Record references to typeinfos in the type list LIST.  */
 
 static void
-record_type_list (struct cgraph_node *node, tree list)
+record_type_list (cgraph_node *node, tree list)
 {
   for (; list; list = TREE_CHAIN (list))
     {
@@ -121,13 +114,10 @@
       if (TREE_CODE (type) == ADDR_EXPR)
 	{
 	  type = TREE_OPERAND (type, 0);
-	  if (TREE_CODE (type) == VAR_DECL)
+	  if (VAR_P (type))
 	    {
-	      struct varpool_node *vnode = varpool_node (type);
-	      varpool_mark_needed_node (vnode);
-	      ipa_record_reference (node, NULL,
-				    NULL, vnode,
-				    IPA_REF_ADDR, NULL);
+	      varpool_node *vnode = varpool_node::get_create (type);
+	      node->create_reference (vnode, IPA_REF_ADDR);
 	    }
 	}
     }
@@ -137,14 +127,18 @@
    for NODE.  */
 
 static void
-record_eh_tables (struct cgraph_node *node, struct function *fun)
+record_eh_tables (cgraph_node *node, function *fun)
 {
   eh_region i;
 
   if (DECL_FUNCTION_PERSONALITY (node->decl))
-    ipa_record_reference (node, NULL,
-			  cgraph_node (DECL_FUNCTION_PERSONALITY (node->decl)),
-			  NULL, IPA_REF_ADDR, NULL);
+    {
+      tree per_decl = DECL_FUNCTION_PERSONALITY (node->decl);
+      cgraph_node *per_node = cgraph_node::get_create (per_decl);
+
+      node->create_reference (per_node, IPA_REF_ADDR);
+      per_node->mark_address_taken ();
+    }
 
   i = fun->eh->region_tree;
   if (!i)
@@ -191,39 +185,16 @@
     }
 }
 
-/* Reset inlining information of all incoming call edges of NODE.  */
-
-void
-reset_inline_failed (struct cgraph_node *node)
-{
-  struct cgraph_edge *e;
-
-  for (e = node->callers; e; e = e->next_caller)
-    {
-      e->callee->global.inlined_to = NULL;
-      if (!node->analyzed)
-	e->inline_failed = CIF_BODY_NOT_AVAILABLE;
-      else if (node->local.redefined_extern_inline)
-	e->inline_failed = CIF_REDEFINED_EXTERN_INLINE;
-      else if (!node->local.inlinable)
-	e->inline_failed = CIF_FUNCTION_NOT_INLINABLE;
-      else if (e->call_stmt_cannot_inline_p)
-	e->inline_failed = CIF_MISMATCHED_ARGUMENTS;
-      else
-	e->inline_failed = CIF_FUNCTION_NOT_CONSIDERED;
-    }
-}
-
 /* Computes the frequency of the call statement so that it can be stored in
    cgraph_edge.  BB is the basic block of the call statement.  */
 int
 compute_call_stmt_bb_frequency (tree decl, basic_block bb)
 {
-  int entry_freq = ENTRY_BLOCK_PTR_FOR_FUNCTION
+  int entry_freq = ENTRY_BLOCK_PTR_FOR_FN
   		     (DECL_STRUCT_FUNCTION (decl))->frequency;
   int freq = bb->frequency;
 
-  if (profile_status_for_function (DECL_STRUCT_FUNCTION (decl)) == PROFILE_ABSENT)
+  if (profile_status_for_fn (DECL_STRUCT_FUNCTION (decl)) == PROFILE_ABSENT)
     return CGRAPH_FREQ_BASE;
 
   if (!entry_freq)
@@ -239,31 +210,21 @@
 /* Mark address taken in STMT.  */
 
 static bool
-mark_address (gimple stmt, tree addr, void *data)
+mark_address (gimple *stmt, tree addr, tree, void *data)
 {
   addr = get_base_address (addr);
   if (TREE_CODE (addr) == FUNCTION_DECL)
     {
-      struct cgraph_node *node = cgraph_node (addr);
-      cgraph_mark_address_taken_node (node);
-      ipa_record_reference ((struct cgraph_node *)data, NULL,
-			    node, NULL,
-			    IPA_REF_ADDR, stmt);
+      cgraph_node *node = cgraph_node::get_create (addr);
+      node->mark_address_taken ();
+      ((symtab_node *)data)->create_reference (node, IPA_REF_ADDR, stmt);
     }
-  else if (addr && TREE_CODE (addr) == VAR_DECL
+  else if (addr && VAR_P (addr)
 	   && (TREE_STATIC (addr) || DECL_EXTERNAL (addr)))
     {
-      struct varpool_node *vnode = varpool_node (addr);
-      int walk_subtrees;
+      varpool_node *vnode = varpool_node::get_create (addr);
 
-      if (lang_hooks.callgraph.analyze_expr)
-	lang_hooks.callgraph.analyze_expr (&addr, &walk_subtrees);
-      varpool_mark_needed_node (vnode);
-      if (vnode->alias && vnode->extra_name)
-	vnode = vnode->extra_name;
-      ipa_record_reference ((struct cgraph_node *)data, NULL,
-			    NULL, vnode,
-			    IPA_REF_ADDR, stmt);
+      ((symtab_node *)data)->create_reference (vnode, IPA_REF_ADDR, stmt);
     }
 
   return false;
@@ -272,33 +233,22 @@
 /* Mark load of T.  */
 
 static bool
-mark_load (gimple stmt, tree t, void *data)
+mark_load (gimple *stmt, tree t, tree, void *data)
 {
   t = get_base_address (t);
   if (t && TREE_CODE (t) == FUNCTION_DECL)
     {
       /* ??? This can happen on platforms with descriptors when these are
 	 directly manipulated in the code.  Pretend that it's an address.  */
-      struct cgraph_node *node = cgraph_node (t);
-      cgraph_mark_address_taken_node (node);
-      ipa_record_reference ((struct cgraph_node *)data, NULL,
-			    node, NULL,
-			    IPA_REF_ADDR, stmt);
+      cgraph_node *node = cgraph_node::get_create (t);
+      node->mark_address_taken ();
+      ((symtab_node *)data)->create_reference (node, IPA_REF_ADDR, stmt);
     }
-  else if (t && TREE_CODE (t) == VAR_DECL
-	   && (TREE_STATIC (t) || DECL_EXTERNAL (t)))
+  else if (t && VAR_P (t) && (TREE_STATIC (t) || DECL_EXTERNAL (t)))
     {
-      struct varpool_node *vnode = varpool_node (t);
-      int walk_subtrees;
+      varpool_node *vnode = varpool_node::get_create (t);
 
-      if (lang_hooks.callgraph.analyze_expr)
-	lang_hooks.callgraph.analyze_expr (&t, &walk_subtrees);
-      varpool_mark_needed_node (vnode);
-      if (vnode->alias && vnode->extra_name)
-	vnode = vnode->extra_name;
-      ipa_record_reference ((struct cgraph_node *)data, NULL,
-			    NULL, vnode,
-			    IPA_REF_LOAD, stmt);
+      ((symtab_node *)data)->create_reference (vnode, IPA_REF_LOAD, stmt);
     }
   return false;
 }
@@ -306,119 +256,134 @@
 /* Mark store of T.  */
 
 static bool
-mark_store (gimple stmt, tree t, void *data)
+mark_store (gimple *stmt, tree t, tree, void *data)
 {
   t = get_base_address (t);
-  if (t && TREE_CODE (t) == VAR_DECL
-      && (TREE_STATIC (t) || DECL_EXTERNAL (t)))
+  if (t && VAR_P (t) && (TREE_STATIC (t) || DECL_EXTERNAL (t)))
     {
-      struct varpool_node *vnode = varpool_node (t);
-      int walk_subtrees;
+      varpool_node *vnode = varpool_node::get_create (t);
 
-      if (lang_hooks.callgraph.analyze_expr)
-	lang_hooks.callgraph.analyze_expr (&t, &walk_subtrees);
-      varpool_mark_needed_node (vnode);
-      if (vnode->alias && vnode->extra_name)
-	vnode = vnode->extra_name;
-      ipa_record_reference ((struct cgraph_node *)data, NULL,
-			    NULL, vnode,
-			    IPA_REF_STORE, stmt);
+      ((symtab_node *)data)->create_reference (vnode, IPA_REF_STORE, stmt);
      }
   return false;
 }
 
+/* Record all references from cgraph_node that are taken in statement STMT.  */
+
+void
+cgraph_node::record_stmt_references (gimple *stmt)
+{
+  walk_stmt_load_store_addr_ops (stmt, this, mark_load, mark_store,
+				 mark_address);
+}
+
 /* Create cgraph edges for function calls.
    Also look for functions and variables having addresses taken.  */
 
-static unsigned int
-build_cgraph_edges (void)
+namespace {
+
+const pass_data pass_data_build_cgraph_edges =
+{
+  GIMPLE_PASS, /* type */
+  "*build_cgraph_edges", /* name */
+  OPTGROUP_NONE, /* optinfo_flags */
+  TV_NONE, /* tv_id */
+  PROP_cfg, /* properties_required */
+  0, /* properties_provided */
+  0, /* properties_destroyed */
+  0, /* todo_flags_start */
+  0, /* todo_flags_finish */
+};
+
+class pass_build_cgraph_edges : public gimple_opt_pass
+{
+public:
+  pass_build_cgraph_edges (gcc::context *ctxt)
+    : gimple_opt_pass (pass_data_build_cgraph_edges, ctxt)
+  {}
+
+  /* opt_pass methods: */
+  virtual unsigned int execute (function *);
+
+}; // class pass_build_cgraph_edges
+
+unsigned int
+pass_build_cgraph_edges::execute (function *fun)
 {
   basic_block bb;
-  struct cgraph_node *node = cgraph_node (current_function_decl);
-  struct pointer_set_t *visited_nodes = pointer_set_create ();
+  cgraph_node *node = cgraph_node::get (current_function_decl);
   gimple_stmt_iterator gsi;
   tree decl;
   unsigned ix;
 
   /* Create the callgraph edges and record the nodes referenced by the function.
      body.  */
-  FOR_EACH_BB (bb)
+  FOR_EACH_BB_FN (bb, fun)
     {
       for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
 	{
-	  gimple stmt = gsi_stmt (gsi);
+	  gimple *stmt = gsi_stmt (gsi);
 	  tree decl;
 
-	  if (is_gimple_call (stmt))
+	  if (is_gimple_debug (stmt))
+	    continue;
+
+	  if (gcall *call_stmt = dyn_cast <gcall *> (stmt))
 	    {
 	      int freq = compute_call_stmt_bb_frequency (current_function_decl,
 							 bb);
-	      decl = gimple_call_fndecl (stmt);
+	      decl = gimple_call_fndecl (call_stmt);
 	      if (decl)
-		cgraph_create_edge (node, cgraph_node (decl), stmt,
-				    bb->count, freq,
-				    bb->loop_depth);
+		node->create_edge (cgraph_node::get_create (decl), call_stmt, bb->count, freq);
+	      else if (gimple_call_internal_p (call_stmt))
+		;
 	      else
-		cgraph_create_indirect_edge (node, stmt,
-					     gimple_call_flags (stmt),
-					     bb->count, freq,
-					     bb->loop_depth);
+		node->create_indirect_edge (call_stmt,
+					    gimple_call_flags (call_stmt),
+					    bb->count, freq);
 	    }
-	  walk_stmt_load_store_addr_ops (stmt, node, mark_load,
-					 mark_store, mark_address);
-	  if (gimple_code (stmt) == GIMPLE_OMP_PARALLEL
-	      && gimple_omp_parallel_child_fn (stmt))
+	  node->record_stmt_references (stmt);
+	  if (gomp_parallel *omp_par_stmt = dyn_cast <gomp_parallel *> (stmt))
 	    {
-	      tree fn = gimple_omp_parallel_child_fn (stmt);
-	      ipa_record_reference (node, NULL, cgraph_node (fn),
-				    NULL, IPA_REF_ADDR, stmt);
+	      tree fn = gimple_omp_parallel_child_fn (omp_par_stmt);
+	      node->create_reference (cgraph_node::get_create (fn),
+				      IPA_REF_ADDR, stmt);
 	    }
 	  if (gimple_code (stmt) == GIMPLE_OMP_TASK)
 	    {
 	      tree fn = gimple_omp_task_child_fn (stmt);
 	      if (fn)
-		ipa_record_reference (node, NULL, cgraph_node (fn),
-				      NULL, IPA_REF_ADDR, stmt);
+		node->create_reference (cgraph_node::get_create (fn),
+					IPA_REF_ADDR, stmt);
 	      fn = gimple_omp_task_copy_fn (stmt);
 	      if (fn)
-		ipa_record_reference (node, NULL, cgraph_node (fn),
-				      NULL, IPA_REF_ADDR, stmt);
+		node->create_reference (cgraph_node::get_create (fn),
+					IPA_REF_ADDR, stmt);
 	    }
 	}
-      for (gsi = gsi_start (phi_nodes (bb)); !gsi_end_p (gsi); gsi_next (&gsi))
-	walk_stmt_load_store_addr_ops (gsi_stmt (gsi), node,
-				       mark_load, mark_store, mark_address);
+      for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+	node->record_stmt_references (gsi_stmt (gsi));
    }
 
   /* Look for initializers of constant variables and private statics.  */
-  FOR_EACH_LOCAL_DECL (cfun, ix, decl)
-    if (TREE_CODE (decl) == VAR_DECL
-	&& (TREE_STATIC (decl) && !DECL_EXTERNAL (decl)))
-      varpool_finalize_decl (decl);
-  record_eh_tables (node, cfun);
+  FOR_EACH_LOCAL_DECL (fun, ix, decl)
+    if (VAR_P (decl)
+	&& (TREE_STATIC (decl) && !DECL_EXTERNAL (decl))
+	&& !DECL_HAS_VALUE_EXPR_P (decl)
+	&& TREE_TYPE (decl) != error_mark_node)
+      varpool_node::finalize_decl (decl);
+  record_eh_tables (node, fun);
 
-  pointer_set_destroy (visited_nodes);
   return 0;
 }
 
-struct gimple_opt_pass pass_build_cgraph_edges =
+} // anon namespace
+
+gimple_opt_pass *
+make_pass_build_cgraph_edges (gcc::context *ctxt)
 {
- {
-  GIMPLE_PASS,
-  "*build_cgraph_edges",			/* name */
-  NULL,					/* gate */
-  build_cgraph_edges,			/* execute */
-  NULL,					/* sub */
-  NULL,					/* next */
-  0,					/* static_pass_number */
-  TV_NONE,				/* tv_id */
-  PROP_cfg,				/* properties_required */
-  0,					/* properties_provided */
-  0,					/* properties_destroyed */
-  0,					/* todo_flags_start */
-  0					/* todo_flags_finish */
- }
-};
+  return new pass_build_cgraph_edges (ctxt);
+}
 
 /* Record references to functions and other variables present in the
    initial value of DECL, a variable.
@@ -427,141 +392,184 @@
 void
 record_references_in_initializer (tree decl, bool only_vars)
 {
-  struct pointer_set_t *visited_nodes = pointer_set_create ();
-  struct varpool_node *node = varpool_node (decl);
-  struct record_reference_ctx ctx = {false, NULL};
+  varpool_node *node = varpool_node::get_create (decl);
+  hash_set<tree> visited_nodes;
+  record_reference_ctx ctx = {false, NULL};
 
   ctx.varpool_node = node;
   ctx.only_vars = only_vars;
   walk_tree (&DECL_INITIAL (decl), record_reference,
-             &ctx, visited_nodes);
-  pointer_set_destroy (visited_nodes);
+             &ctx, &visited_nodes);
 }
 
 /* Rebuild cgraph edges for current function node.  This needs to be run after
    passes that don't update the cgraph.  */
 
 unsigned int
-rebuild_cgraph_edges (void)
+cgraph_edge::rebuild_edges (void)
 {
   basic_block bb;
-  struct cgraph_node *node = cgraph_node (current_function_decl);
+  cgraph_node *node = cgraph_node::get (current_function_decl);
   gimple_stmt_iterator gsi;
 
-  cgraph_node_remove_callees (node);
-  ipa_remove_all_references (&node->ref_list);
+  node->remove_callees ();
+  node->remove_all_references ();
 
-  node->count = ENTRY_BLOCK_PTR->count;
+  node->count = ENTRY_BLOCK_PTR_FOR_FN (cfun)->count;
 
-  FOR_EACH_BB (bb)
+  FOR_EACH_BB_FN (bb, cfun)
     {
       for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
 	{
-	  gimple stmt = gsi_stmt (gsi);
+	  gimple *stmt = gsi_stmt (gsi);
 	  tree decl;
 
-	  if (is_gimple_call (stmt))
+	  if (gcall *call_stmt = dyn_cast <gcall *> (stmt))
 	    {
 	      int freq = compute_call_stmt_bb_frequency (current_function_decl,
 							 bb);
-	      decl = gimple_call_fndecl (stmt);
+	      decl = gimple_call_fndecl (call_stmt);
 	      if (decl)
-		cgraph_create_edge (node, cgraph_node (decl), stmt,
-				    bb->count, freq,
-				    bb->loop_depth);
+		node->create_edge (cgraph_node::get_create (decl), call_stmt,
+				   bb->count, freq);
+	      else if (gimple_call_internal_p (call_stmt))
+		;
 	      else
-		cgraph_create_indirect_edge (node, stmt,
-					     gimple_call_flags (stmt),
-					     bb->count, freq,
-					     bb->loop_depth);
+		node->create_indirect_edge (call_stmt,
+					    gimple_call_flags (call_stmt),
+					    bb->count, freq);
 	    }
-	  walk_stmt_load_store_addr_ops (stmt, node, mark_load,
-					 mark_store, mark_address);
-
+	  node->record_stmt_references (stmt);
 	}
-      for (gsi = gsi_start (phi_nodes (bb)); !gsi_end_p (gsi); gsi_next (&gsi))
-	walk_stmt_load_store_addr_ops (gsi_stmt (gsi), node,
-				       mark_load, mark_store, mark_address);
+      for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+	node->record_stmt_references (gsi_stmt (gsi));
     }
   record_eh_tables (node, cfun);
   gcc_assert (!node->global.inlined_to);
 
+  if (node->instrumented_version
+      && !node->instrumentation_clone)
+    node->create_reference (node->instrumented_version, IPA_REF_CHKP, NULL);
+
   return 0;
 }
 
-/* Rebuild cgraph edges for current function node.  This needs to be run after
-   passes that don't update the cgraph.  */
+/* Rebuild cgraph references for current function node.  This needs to be run
+   after passes that don't update the cgraph.  */
 
 void
-cgraph_rebuild_references (void)
+cgraph_edge::rebuild_references (void)
 {
   basic_block bb;
-  struct cgraph_node *node = cgraph_node (current_function_decl);
+  cgraph_node *node = cgraph_node::get (current_function_decl);
   gimple_stmt_iterator gsi;
+  ipa_ref *ref = NULL;
+  int i;
 
-  ipa_remove_all_references (&node->ref_list);
+  /* Keep speculative references for further cgraph edge expansion.  */
+  for (i = 0; node->iterate_reference (i, ref);)
+    if (!ref->speculative)
+      ref->remove_reference ();
+    else
+      i++;
 
-  node->count = ENTRY_BLOCK_PTR->count;
-
-  FOR_EACH_BB (bb)
+  FOR_EACH_BB_FN (bb, cfun)
     {
       for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
-	{
-	  gimple stmt = gsi_stmt (gsi);
-
-	  walk_stmt_load_store_addr_ops (stmt, node, mark_load,
-					 mark_store, mark_address);
-
-	}
-      for (gsi = gsi_start (phi_nodes (bb)); !gsi_end_p (gsi); gsi_next (&gsi))
-	walk_stmt_load_store_addr_ops (gsi_stmt (gsi), node,
-				       mark_load, mark_store, mark_address);
+	node->record_stmt_references (gsi_stmt (gsi));
+      for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+	node->record_stmt_references (gsi_stmt (gsi));
     }
   record_eh_tables (node, cfun);
+
+  if (node->instrumented_version
+      && !node->instrumentation_clone)
+    node->create_reference (node->instrumented_version, IPA_REF_CHKP, NULL);
 }
 
-struct gimple_opt_pass pass_rebuild_cgraph_edges =
+namespace {
+
+const pass_data pass_data_rebuild_cgraph_edges =
 {
- {
-  GIMPLE_PASS,
-  "*rebuild_cgraph_edges",		/* name */
-  NULL,					/* gate */
-  rebuild_cgraph_edges,			/* execute */
-  NULL,					/* sub */
-  NULL,					/* next */
-  0,					/* static_pass_number */
-  TV_CGRAPH,				/* tv_id */
-  PROP_cfg,				/* properties_required */
-  0,					/* properties_provided */
-  0,					/* properties_destroyed */
-  0,					/* todo_flags_start */
-  0,					/* todo_flags_finish */
- }
+  GIMPLE_PASS, /* type */
+  "*rebuild_cgraph_edges", /* name */
+  OPTGROUP_NONE, /* optinfo_flags */
+  TV_CGRAPH, /* tv_id */
+  PROP_cfg, /* properties_required */
+  0, /* properties_provided */
+  0, /* properties_destroyed */
+  0, /* todo_flags_start */
+  0, /* todo_flags_finish */
 };
 
+class pass_rebuild_cgraph_edges : public gimple_opt_pass
+{
+public:
+  pass_rebuild_cgraph_edges (gcc::context *ctxt)
+    : gimple_opt_pass (pass_data_rebuild_cgraph_edges, ctxt)
+  {}
 
-static unsigned int
-remove_cgraph_callee_edges (void)
+  /* opt_pass methods: */
+  opt_pass * clone () { return new pass_rebuild_cgraph_edges (m_ctxt); }
+  virtual unsigned int execute (function *)
+  {
+    return cgraph_edge::rebuild_edges ();
+  }
+
+}; // class pass_rebuild_cgraph_edges
+
+} // anon namespace
+
+gimple_opt_pass *
+make_pass_rebuild_cgraph_edges (gcc::context *ctxt)
+{
+  return new pass_rebuild_cgraph_edges (ctxt);
+}
+
+
+namespace {
+
+const pass_data pass_data_remove_cgraph_callee_edges =
 {
-  cgraph_node_remove_callees (cgraph_node (current_function_decl));
+  GIMPLE_PASS, /* type */
+  "*remove_cgraph_callee_edges", /* name */
+  OPTGROUP_NONE, /* optinfo_flags */
+  TV_NONE, /* tv_id */
+  0, /* properties_required */
+  0, /* properties_provided */
+  0, /* properties_destroyed */
+  0, /* todo_flags_start */
+  0, /* todo_flags_finish */
+};
+
+class pass_remove_cgraph_callee_edges : public gimple_opt_pass
+{
+public:
+  pass_remove_cgraph_callee_edges (gcc::context *ctxt)
+    : gimple_opt_pass (pass_data_remove_cgraph_callee_edges, ctxt)
+  {}
+
+  /* opt_pass methods: */
+  opt_pass * clone () {
+    return new pass_remove_cgraph_callee_edges (m_ctxt);
+  }
+  virtual unsigned int execute (function *);
+
+}; // class pass_remove_cgraph_callee_edges
+
+unsigned int
+pass_remove_cgraph_callee_edges::execute (function *)
+{
+  cgraph_node *node = cgraph_node::get (current_function_decl);
+  node->remove_callees ();
+  node->remove_all_references ();
   return 0;
 }
 
-struct gimple_opt_pass pass_remove_cgraph_callee_edges =
+} // anon namespace
+
+gimple_opt_pass *
+make_pass_remove_cgraph_callee_edges (gcc::context *ctxt)
 {
- {
-  GIMPLE_PASS,
-  "*remove_cgraph_callee_edges",		/* name */
-  NULL,					/* gate */
-  remove_cgraph_callee_edges,		/* execute */
-  NULL,					/* sub */
-  NULL,					/* next */
-  0,					/* static_pass_number */
-  TV_NONE,				/* tv_id */
-  0,					/* properties_required */
-  0,					/* properties_provided */
-  0,					/* properties_destroyed */
-  0,					/* todo_flags_start */
-  0,					/* todo_flags_finish */
- }
-};
+  return new pass_remove_cgraph_callee_edges (ctxt);
+}