langhooks-def.h (LANG_HOOKS_EH_RUNTIME_TYPE): Define.

2009-09-13  Richard Guenther  <rguenther@suse.de>
	Rafael Avila de Espindola  <espindola@google.com>

	* langhooks-def.h (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.
	(LANG_HOOKS_INITIALIZER): Adjust.
	(lhd_pass_through_t): Declare.
	* langhooks.h (struct lang_hooks): Add eh_runtime_type and
	eh_personality.
	* langhooks.c (lhd_pass_through_t): New function.

        * dwarf2out.c (output_call_frame_info, dwarf2out_do_cfi_startproc,
	dwarf2out_begin_prologue): Use personality from current_function_decl.
        * expr.h (get_personality_function): Declare.
	* expr.c (get_personality_function): New function.
	(build_personality_function): Likewise.
        * libfuncs.h (libfunc_index): Remove LTI_eh_personality.
        (eh_personality_libfunc): Remove.
        * optabs.c (build_libfunc_function): New function split out from ...
	(init_one_libfunc): ... here.
        * tree.h (DECL_FUNCTION_PERSONALITY): New.
        (tree_function_decl): Add personality.
	(lhd_gcc_personality): Declare.
	(build_personality_function): Likewise.
	* tree.c (gcc_eh_personality_decl): New.
	(lhd_gcc_personality): New function.
	* except.h (lang_eh_runtime_type): Remove.
	(enum eh_personality_kind): New.
	(build_personality_function): Declare.
	(function_needs_eh_personality): Declare.
        * except.c (lang_eh_runtime_type): Remove.
	(function_needs_eh_personality): New function.
	(add_type_for_runtime): Call lang_hooks.type_for_runtime instead.
        (sjlj_emit_function_enter, output_function_exception_table):
        Use personality from current_function_decl.
	* tree-eh.c (lower_eh_constructs): Set DECL_FUNCTION_PERSONALITY.
	* tree-inline.c (tree_can_inline_p): Do not inline across different
	EH personalities.
	(expand_call_inline): Likewise.  Adjust the callers EH personality.
	(tree_function_versioning): Copy DECL_FUNCTION_PERSONALITY.
	* cgraph.c (cgraph_add_new_function): Set DECL_FUNCTION_PERSONALITY.
	* Makefile.in (cgraph.o): Add $(EXCEPT_H) dependency.
	(c-parser.o): Likewise

	* c-tree.h (c_eh_initialized_p): Remove.
	(c_maybe_initialize_eh): Likewise.
	* c-decl.c (finish_decl): Don't call c_maybe_initialize_eh.
	(finish_decl): Don't call c_maybe_initialize_eh.
	(c_eh_initialized_p): Remove.
	(c_maybe_initialize_eh): Likewise.
        * c-parser.c (c_parser_omp_construct): Likewise.
	(c_parse_file): Initialize exception handling.

	objc/
	* objc-act.c (objc_eh_runtime_type): Export.
	(objc_init_exceptions): Remove.  Move warning code ...
	(objc_begin_try_stmt): ... here
	(objc_build_throw_stmt): ... and here.
	(objc_eh_personality_decl): New.
	(objc_eh_personality): New function.
	* objc-act.h (objc_eh_runtime_type): Declare.
	(objc_eh_personality): Likewise.
	* objc-lang.c (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.

	cp/
	* except.c (init_exception_processing): Do not set
	lang_eh_runtime_type.
	(choose_personality_routine): Do not set eh_personality_decl,
	set pragma_java_exceptions.
	* cp-lang.c (LANG_HOOKS_EH_RUNTIME_TYPE): Define.
	(LANG_HOOKS_EH_PERSONALITY): Likewise.
	(cp_eh_personality_decl): New.
	(cp_eh_personality): Likewise.
	* Make-lang.in (cp-lang.o): Add $(EXPR_H) and $(EXCEPT_H)
	dependencies.

	java/
	* decl.c (do_nothing): Remove.
	(java_init_decl_processing): Do not set lang_eh_runtime_type.
	* Make-lang.in (lang.o): Add $(EXCEPT_H) dependency.
	* lang.c (java_eh_personality): New.
	(java_eh_personality_decl): Likewise.
	(LANG_HOOKS_EH_PERSONALITY): Define.

	ada/
	* gcc-interface/misc.c (gnat_init_gcc_eh): Do not set
	lang_eh_runtime_type.
	(LANG_HOOKS_EH_PERSONALITY): Define.
	(gnat_eh_personality_decl): New.
	(gnat_eh_personality): Likewise.
	* Make-lang.in (misc.o): Add gt-ada-misc.h dependency.
	* config-lang.in (gtfiles): Add misc.c.

	fortran/
	* f95-lang.c (gfc_maybe_initialize_eh): Do not init
	eh_personality_libfunc.

Co-Authored-By: Rafael Avila de Espindola <espindola@google.com>

From-SVN: r151676

1 files changed, 2 insertions, 24 deletions

diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index 1bc9791..ed8863d 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -92,9 +92,6 @@ tree pending_invalid_xref;
 /* File and line to appear in the eventual error message.  */
 location_t pending_invalid_xref_location;
 
-/* True means we've initialized exception handling.  */
-bool c_eh_initialized_p;
-
 /* The file and line that the prototype came from if this is an
    old-style definition; used for diagnostics in
    store_parm_decls_oldstyle.  */
@@ -2365,7 +2362,8 @@ merge_decls (tree newdecl, tree olddecl, tree newtype, tree oldtype)
     TREE_USED (olddecl) = 1;
 
   /* Copy most of the decl-specific fields of NEWDECL into OLDDECL.
-     But preserve OLDDECL's DECL_UID and DECL_CONTEXT.  */
+     But preserve OLDDECL's DECL_UID, DECL_CONTEXT and
+     DECL_ARGUMENTS (if appropriate).  */
   {
     unsigned olddecl_uid = DECL_UID (olddecl);
     tree olddecl_context = DECL_CONTEXT (olddecl);
@@ -4043,23 +4041,6 @@ start_decl (struct c_declarator *declarator, struct c_declspecs *declspecs,
   return tem;
 }
 
-/* Initialize EH if not initialized yet and exceptions are enabled.  */
-
-void
-c_maybe_initialize_eh (void)
-{
-  if (!flag_exceptions || c_eh_initialized_p)
-    return;
-
-  c_eh_initialized_p = true;
-  eh_personality_libfunc
-    = init_one_libfunc (USING_SJLJ_EXCEPTIONS
-			? "__gcc_personality_sj0"
-			: "__gcc_personality_v0");
-  default_init_unwind_resume_libfunc ();
-  using_eh_for_cleanups ();
-}
-
 /* Finish processing of a declaration;
    install its initial value.
    If ORIGTYPE is not NULL_TREE, it is the original type of INIT.
@@ -4360,9 +4341,6 @@ finish_decl (tree decl, location_t init_loc, tree init,
 	  TREE_USED (decl) = 1;
 	  TREE_USED (cleanup_decl) = 1;
 
-	  /* Initialize EH, if we've been told to do so.  */
-	  c_maybe_initialize_eh ();
-
 	  push_cleanup (decl, cleanup, false);
 	}
     }