decl.c (start_decl): Simplify specialization handling.

	* decl.c (start_decl): Simplify specialization handling. Remove
	unneeded CLASSTYPE_TEMPLATE_INSTANTIATION check.
	* mangle.c (discriminator_for_local_entity): Use VEC_index.

From-SVN: r100488

gcc/cp/ChangeLog

 2005-06-02  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* decl.c (start_decl): Simplify specialization handling. Remove
+	unneeded CLASSTYPE_TEMPLATE_INSTANTIATION check.
+	* mangle.c (discriminator_for_local_entity): Use VEC_index.
+
 	PR c++/20350
 	* decl.c (duplicate_decls): Copy all of DECL_USE_TEMPLATE.
 

gcc/cp/decl.c

@@ -3716,22 +3716,22 @@ start_decl (const cp_declarator *declarator,
 
       /* cp_finish_decl sets DECL_EXTERNAL if DECL_IN_AGGR_P is set.  */
       DECL_IN_AGGR_P (decl) = 0;
-      if ((DECL_LANG_SPECIFIC (decl) && DECL_USE_TEMPLATE (decl))
-	  || CLASSTYPE_TEMPLATE_INSTANTIATION (context))
-	{
-	  /* Do not mark DECL as an explicit specialization if it was
-	     not already marked as an instantiation; a declaration
-	     should never be marked as a specialization unless we know
-	     what template is being specialized.  */ 
-	  if (DECL_LANG_SPECIFIC (decl) && DECL_USE_TEMPLATE (decl))
-	    SET_DECL_TEMPLATE_SPECIALIZATION (decl);
+      /* Do not mark DECL as an explicit specialization if it was not
+	 already marked as an instantiation; a declaration should
+	 never be marked as a specialization unless we know what
+	 template is being specialized.  */ 
+      if (DECL_LANG_SPECIFIC (decl) && DECL_USE_TEMPLATE (decl))
+	{
+	  SET_DECL_TEMPLATE_SPECIALIZATION (decl);
+      
 	  /* [temp.expl.spec] An explicit specialization of a static data
 	     member of a template is a definition if the declaration
 	     includes an initializer; otherwise, it is a declaration.
-
+	      
 	     We check for processing_specialization so this only applies
 	     to the new specialization syntax.  */
-	  if (DECL_INITIAL (decl) == NULL_TREE && processing_specialization)
+	  if (!DECL_INITIAL (decl)
+	      && processing_specialization)
 	    DECL_EXTERNAL (decl) = 1;
 	}
 

gcc/cp/mangle.c

@@ -1426,8 +1426,6 @@ write_special_name_destructor (const tree dtor)
 static int
 discriminator_for_local_entity (tree entity)
 {
-  tree *type;
-
   /* Assume this is the only local entity with this name.  */
   int discriminator = 0;
 
@@ -1435,12 +1433,19 @@ discriminator_for_local_entity (tree entity)
     discriminator = DECL_DISCRIMINATOR (entity);
   else if (TREE_CODE (entity) == TYPE_DECL)
     {
+      int ix;
+      
       /* Scan the list of local classes.  */
       entity = TREE_TYPE (entity);
-      for (type = VEC_address (tree, local_classes); *type != entity; ++type)
-        if (TYPE_IDENTIFIER (*type) == TYPE_IDENTIFIER (entity)
-            && TYPE_CONTEXT (*type) == TYPE_CONTEXT (entity))
-	  ++discriminator;
+      for (ix = 0; ; ix++)
+	{
+	  tree type = VEC_index (tree, local_classes, ix);
+	  if (type == entity)
+	    break;
+	  if (TYPE_IDENTIFIER (type) == TYPE_IDENTIFIER (entity)
+	      && TYPE_CONTEXT (type) == TYPE_CONTEXT (entity))
+	    ++discriminator;
+	}
     }  
 
   return discriminator;