move many gc hashtab to hash_table

gcc/

* asan.c, cfgloop.c, cfgloop.h, cgraph.c, cgraph.h,
	config/darwin.c, config/m32c/m32c.c, config/mep/mep.c,
	config/mips/mips.c, config/rs6000/rs6000.c, dwarf2out.c,
	function.c, function.h, gimple-ssa.h, libfuncs.h, optabs.c,
	output.h, rtl.h, sese.c, symtab.c, tree-cfg.c, tree-dfa.c,
	tree-ssa.c, varasm.c: Use hash-table instead of hashtab.
	* doc/gty.texi (for_user): Document new option.
	* gengtype.c (create_user_defined_type): Don't try to get a struct for
	char.
	(walk_type): Don't error out on for_user option.
	(write_func_for_structure): Emit user marking routines if requested by
	for_user option.
	(write_local_func_for_structure): Likewise.
	(main): Mark types with for_user option as used.
	* ggc.h (gt_pch_nx): Add overload for unsigned int.
	* hash-map.h (hash_map::hash_entry::pch_nx_helper): AddOverloads.
	* hash-table.h (ggc_hasher): New struct.
	(hash_table::create_ggc): New function.
	(gt_pch_nx): New overload for hash_table.

java/

	* class.c, decl.c, except.c, expr.c, java-tree.h, lang.c: Use
	hash_table instead of hashtab.

objc/

	* objc-act.c: use hash_table instead of hashtab.

cp/

	* cp-gimplify.c, cp-tree.h, decl.c, mangle.c, name-lookup.c,
	pt.c, semantics.c, tree.c, typeck2.c: Use hash_table instead of
	hashtab.

fortran/

	* trans-decl.c, trans.c, trans.h: Use hash_table instead of hashtab.

c-family/

	* c-common.c: Use hash_table instead of hashtab.

From-SVN: r216127

1 files changed, 16 insertions, 5 deletions

diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h
index 6d720c1..dbbf26d 100644
--- a/gcc/cp/cp-tree.h
+++ b/gcc/cp/cp-tree.h
@@ -1133,13 +1133,24 @@ struct GTY(()) saved_scope {
 
 extern GTY(()) struct saved_scope *scope_chain;
 
-struct GTY(()) cxx_int_tree_map {
+struct GTY((for_user)) cxx_int_tree_map {
   unsigned int uid;
   tree to;
 };
 
-extern unsigned int cxx_int_tree_map_hash (const void *);
-extern int cxx_int_tree_map_eq (const void *, const void *);
+struct cxx_int_tree_map_hasher : ggc_hasher<cxx_int_tree_map *>
+{
+  static hashval_t hash (cxx_int_tree_map *);
+  static bool equal (cxx_int_tree_map *, cxx_int_tree_map *);
+};
+
+struct named_label_entry;
+
+struct named_label_hasher : ggc_hasher<named_label_entry *>
+{
+  static hashval_t hash (named_label_entry *);
+  static bool equal (named_label_entry *, named_label_entry *);
+};
 
 /* Global state pertinent to the current function.  */
 
@@ -1165,13 +1176,13 @@ struct GTY(()) language_function {
   /* True if this function can throw an exception.  */
   BOOL_BITFIELD can_throw : 1;
 
-  htab_t GTY((param_is(struct named_label_entry))) x_named_labels;
+  hash_table<named_label_hasher> *x_named_labels;
   cp_binding_level *bindings;
   vec<tree, va_gc> *x_local_names;
   /* Tracking possibly infinite loops.  This is a vec<tree> only because
      vec<bool> doesn't work with gtype.  */
   vec<tree, va_gc> *infinite_loops;
-  htab_t GTY((param_is (struct cxx_int_tree_map))) extern_decl_map;
+  hash_table<cxx_int_tree_map_hasher> *extern_decl_map;
 };
 
 /* The current C++-specific per-function global variables.  */