Add VEC_WIDEN_MULT_EVEN/ODD_EXPR

[platform/upstream/gcc.git] / gcc / cgraphunit.c

diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c
index 2833868..e47008f 100644 (file)
--- a/gcc/cgraphunit.c
+++ b/gcc/cgraphunit.c
@@ -51,7 +51,7 @@ along with GCC; see the file COPYING3.  If not see
       The symbol table is constructed starting from the trivially needed
       symbols finalized by the frontend.  Functions are lowered into
       GIMPLE representation and callgraph/reference lists are constructed.
-      Those are used to discover other neccesary functions and variables.
+      Those are used to discover other necessary functions and variables.
 
       At the end the bodies of unreachable functions are removed.
 
@@ -220,7 +220,7 @@ static GTY (()) tree vtable_entry_type;
 
 /* Determine if function DECL is trivially needed and should stay in the
    compilation unit.  This is used at the symbol table construction time
-   and differs from later logic removing unnecesary functions that can
+   and differs from later logic removing unnecessary functions that can
    take into account results of analysis, whole program info etc.  */
 
 static bool
@@ -285,7 +285,6 @@ cgraph_process_new_functions (void)
 
   if (!cgraph_new_nodes)
     return false;
-  finish_aliases_1 ();
   handle_alias_pairs ();
   /*  Note that this queue may grow as its being processed, as the new
       functions may generate new ones.  */
@@ -386,7 +385,7 @@ referred_to_p (symtab_node node)
 {
   struct ipa_ref *ref;
 
-  /* See if there are any refrences at all.  */
+  /* See if there are any references at all.  */
   if (ipa_ref_list_referring_iterate (&node->symbol.ref_list, 0, ref))
     return true;
   /* For functions check also calls.  */
@@ -1068,6 +1067,18 @@ handle_alias_pairs (void)
          = lookup_attribute ("weakref",
                              DECL_ATTRIBUTES (p->decl)) != NULL;
 
+      if (DECL_EXTERNAL (target_node->symbol.decl)
+         /* We use local aliases for C++ thunks to force the tailcall
+            to bind locally.  This is a hack - to keep it working do
+            the following (which is not strictly correct).  */
+         && (! TREE_CODE (target_node->symbol.decl) == FUNCTION_DECL
+             || ! DECL_VIRTUAL_P (target_node->symbol.decl))
+         && ! lookup_attribute ("weakref", DECL_ATTRIBUTES (p->decl)))
+       {
+         error ("%q+D aliased to external symbol %qE",
+                p->decl, p->target);
+       }
+
       if (TREE_CODE (p->decl) == FUNCTION_DECL
           && target_node && symtab_function_p (target_node))
        {
@@ -1185,6 +1196,7 @@ mark_functions_to_output (void)
                 end up not removing the body since we no longer have an
                 analyzed node pointing to it.  */
              && !node->symbol.in_other_partition
+             && !node->clones
              && !DECL_EXTERNAL (decl))
            {
              dump_cgraph_node (stderr, node);
@@ -1522,7 +1534,7 @@ assemble_thunk (struct cgraph_node *node)
 
 
 
-/* Assemble thunks and aliases asociated to NODE.  */
+/* Assemble thunks and aliases associated to NODE.  */
 
 static void
 assemble_thunks_and_aliases (struct cgraph_node *node)
@@ -1552,8 +1564,8 @@ assemble_thunks_and_aliases (struct cgraph_node *node)
        /* Force assemble_alias to really output the alias this time instead
           of buffering it in same alias pairs.  */
        TREE_ASM_WRITTEN (alias->thunk.alias) = 1;
-       assemble_alias (alias->symbol.decl,
-                       DECL_ASSEMBLER_NAME (alias->thunk.alias));
+       do_assemble_alias (alias->symbol.decl,
+                          DECL_ASSEMBLER_NAME (alias->thunk.alias));
        assemble_thunks_and_aliases (alias);
        TREE_ASM_WRITTEN (alias->thunk.alias) = saved_written;
       }
@@ -1891,7 +1903,7 @@ get_alias_symbol (tree decl)
 
 
 /* Weakrefs may be associated to external decls and thus not output
-   at expansion time.  Emit all neccesary aliases.  */
+   at expansion time.  Emit all necessary aliases.  */
 
 static void
 output_weakrefs (void)
@@ -1902,16 +1914,16 @@ output_weakrefs (void)
     if (node->alias && DECL_EXTERNAL (node->symbol.decl)
         && !TREE_ASM_WRITTEN (node->symbol.decl)
        && lookup_attribute ("weakref", DECL_ATTRIBUTES (node->symbol.decl)))
-      assemble_alias (node->symbol.decl,
-                     node->thunk.alias ? DECL_ASSEMBLER_NAME (node->thunk.alias)
-                     : get_alias_symbol (node->symbol.decl));
+      do_assemble_alias (node->symbol.decl,
+                        node->thunk.alias ? DECL_ASSEMBLER_NAME (node->thunk.alias)
+                        : get_alias_symbol (node->symbol.decl));
   FOR_EACH_VARIABLE (vnode)
     if (vnode->alias && DECL_EXTERNAL (vnode->symbol.decl)
         && !TREE_ASM_WRITTEN (vnode->symbol.decl)
        && lookup_attribute ("weakref", DECL_ATTRIBUTES (vnode->symbol.decl)))
-      assemble_alias (vnode->symbol.decl,
-                     vnode->alias_of ? DECL_ASSEMBLER_NAME (vnode->alias_of)
-                     : get_alias_symbol (vnode->symbol.decl));
+      do_assemble_alias (vnode->symbol.decl,
+                        vnode->alias_of ? DECL_ASSEMBLER_NAME (vnode->alias_of)
+                        : get_alias_symbol (vnode->symbol.decl));
 }
 
 /* Initialize callgraph dump file.  */
@@ -1995,7 +2007,6 @@ compile (void)
 #endif
   bitmap_obstack_release (NULL);
   mark_functions_to_output ();
-  output_weakrefs ();
 
   cgraph_state = CGRAPH_STATE_EXPANSION;
   if (!flag_toplevel_reorder)
@@ -2010,6 +2021,7 @@ compile (void)
 
   cgraph_process_new_functions ();
   cgraph_state = CGRAPH_STATE_FINISHED;
+  output_weakrefs ();
 
   if (cgraph_dump_file)
     {
@@ -2058,7 +2070,6 @@ finalize_compilation_unit (void)
   finalize_size_functions ();
 
   /* Mark alias targets necessary and emit diagnostics.  */
-  finish_aliases_1 ();
   handle_alias_pairs ();
 
   if (!quiet_flag)
@@ -2075,7 +2086,6 @@ finalize_compilation_unit (void)
   cgraph_analyze_functions ();
 
   /* Mark alias targets necessary and emit diagnostics.  */
-  finish_aliases_1 ();
   handle_alias_pairs ();
 
   /* Gimplify and lower thunks.  */