/* Language-dependent hooks for C++.
- Copyright 2001, 2002, 2004, 2007 Free Software Foundation, Inc.
+ Copyright 2001, 2002, 2004, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
Contributed by Alexandre Oliva <aoliva@redhat.com>
This file is part of GCC.
#include "tm.h"
#include "tree.h"
#include "cp-tree.h"
-#include "c-common.h"
-#include "toplev.h"
+#include "c-family/c-common.h"
#include "langhooks.h"
#include "langhooks-def.h"
-#include "diagnostic.h"
#include "debug.h"
#include "cp-objcp-common.h"
#include "hashtab.h"
+#include "target.h"
enum c_language_kind c_language = clk_cxx;
static void cp_init_ts (void);
static const char * cxx_dwarf_name (tree t, int verbosity);
static enum classify_record cp_classify_record (tree type);
+static tree cp_eh_personality (void);
+static tree get_template_innermost_arguments_folded (const_tree);
+static tree get_template_argument_pack_elems_folded (const_tree);
/* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;
consequently, there should be very few hooks below. */
#define LANG_HOOKS_CLASSIFY_RECORD cp_classify_record
#undef LANG_HOOKS_GENERIC_TYPE_P
#define LANG_HOOKS_GENERIC_TYPE_P class_tmpl_impl_spec_p
-#undef LANG_HOOKS_DECL_PRINTABLE_NAME
-#define LANG_HOOKS_DECL_PRINTABLE_NAME cxx_printable_name
+
+#undef LANG_HOOKS_GET_INNERMOST_GENERIC_PARMS
+#define LANG_HOOKS_GET_INNERMOST_GENERIC_PARMS \
+ get_primary_template_innermost_parameters
+#undef LANG_HOOKS_GET_INNERMOST_GENERIC_ARGS
+#define LANG_HOOKS_GET_INNERMOST_GENERIC_ARGS \
+ get_template_innermost_arguments_folded
+#undef LANG_HOOKS_FUNCTION_PARAMETER_PACK_P
+#define LANG_HOOKS_FUNCTION_PARAMETER_PACK_P \
+ function_parameter_pack_p
+#undef LANG_HOOKS_GET_ARGUMENT_PACK_ELEMS
+#define LANG_HOOKS_GET_ARGUMENT_PACK_ELEMS \
+ get_template_argument_pack_elems_folded
+#undef LANG_HOOKS_GENERIC_GENERIC_PARAMETER_DECL_P
+#define LANG_HOOKS_GENERIC_GENERIC_PARAMETER_DECL_P \
+ template_template_parameter_p
+#undef LANG_HOOKS_FUNCTION_PARM_EXPANDED_FROM_PACK_P
+#define LANG_HOOKS_FUNCTION_PARM_EXPANDED_FROM_PACK_P \
+ function_parameter_expanded_from_pack_p
+#undef LANG_HOOKS_GET_GENERIC_FUNCTION_DECL
+#define LANG_HOOKS_GET_GENERIC_FUNCTION_DECL get_function_template_decl
#undef LANG_HOOKS_DWARF_NAME
#define LANG_HOOKS_DWARF_NAME cxx_dwarf_name
-#undef LANG_HOOKS_FOLD_OBJ_TYPE_REF
-#define LANG_HOOKS_FOLD_OBJ_TYPE_REF cp_fold_obj_type_ref
#undef LANG_HOOKS_INIT_TS
#define LANG_HOOKS_INIT_TS cp_init_ts
+#undef LANG_HOOKS_EH_PERSONALITY
+#define LANG_HOOKS_EH_PERSONALITY cp_eh_personality
+#undef LANG_HOOKS_EH_RUNTIME_TYPE
+#define LANG_HOOKS_EH_RUNTIME_TYPE build_eh_type_type
/* Each front end provides its own lang hook initializer. */
-const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
+struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
/* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
there should be very few routines below. */
{
gcc_assert (DECL_P (t));
+ if (DECL_NAME (t)
+ && (ANON_AGGRNAME_P (DECL_NAME (t)) || LAMBDANAME_P (DECL_NAME (t))))
+ return NULL;
if (verbosity >= 2)
- return decl_as_string (t, TFF_DECL_SPECIFIERS | TFF_UNQUALIFIED_NAME);
+ return decl_as_string (t,
+ TFF_DECL_SPECIFIERS | TFF_UNQUALIFIED_NAME
+ | TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS);
return cxx_printable_name (t, verbosity);
}
return RECORD_IS_STRUCT;
}
-void
-finish_file (void)
+static GTY(()) tree cp_eh_personality_decl;
+
+static tree
+cp_eh_personality (void)
+{
+ if (!cp_eh_personality_decl)
+ {
+ const char *lang = (pragma_java_exceptions ? "gcj" : "gxx");
+ cp_eh_personality_decl = build_personality_function (lang);
+ }
+
+ return cp_eh_personality_decl;
+}
+
+/* This is a subroutine of fold_cplus_constants. It returns TRUE if T
+ is a C++ specific constant that needs to be folded further before
+ being passed to the debug info emitter. */
+
+static bool
+template_arg_needs_folding (const_tree t)
+{
+ /* For now only PTRMEM_CST nodes are to be folded further. */
+ if (TREE_CODE (t) == PTRMEM_CST)
+ return true;
+ return false;
+}
+
+/* Fold the elements of the TREE_VEC C which are C++ specific nodes
+ that would need folding so that they can be processed by the debug
+ info emitter. This is a subroutine of
+ get_template_innermost_arguments_folded and
+ get_template_argument_pack_elems_folded. */
+
+static tree
+fold_cplus_constants (const_tree c)
+{
+ tree folded_elems, elems = CONST_CAST_TREE (c);
+ int vec_len, i;
+
+ if (elems == NULL_TREE || elems == error_mark_node)
+ return elems;
+
+ vec_len = TREE_VEC_LENGTH (elems);
+
+ /* First check if there is at least one element that needs
+ folding. If there is none, we just return ELEMS. Otherwise create
+ and return a new tree vector that contains the folded versions of
+ ELEMS. This is to avoid allocating memory if we don't need
+ to. */
+ for (i = 0; i < vec_len; ++i)
+ {
+ if (template_arg_needs_folding (TREE_VEC_ELT (elems, i)))
+ break;
+ }
+ if (i == vec_len)
+ return elems;
+
+ folded_elems = make_tree_vec (vec_len);
+ for (i = 0; i < vec_len; ++i)
+ {
+ tree elem = TREE_VEC_ELT (elems, i);
+ TREE_VEC_ELT (folded_elems, i) =
+ (elem && !TYPE_P (elem)) ? cplus_expand_constant (elem) : elem;
+
+ }
+ return folded_elems;
+}
+
+/* The C++ implementation of the LANG_HOOKS_GET_INNERMOST_GENERIC_ARGS
+ hook. It returns the innermost template arguments of type T, and
+ makes sure those arguments are folded enough for the debug info
+ emitter. */
+
+static tree
+get_template_innermost_arguments_folded (const_tree t)
+{
+ return fold_cplus_constants (get_template_innermost_arguments (t));
+}
+
+static tree
+get_template_argument_pack_elems_folded (const_tree t)
{
+ return fold_cplus_constants (get_template_argument_pack_elems (t));
}
+#include "gt-cp-cp-lang.h"
#include "gtype-cp.h"
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