c-common.c (flag_objc_sjlj_exceptions): New.

	* c-common.c (flag_objc_sjlj_exceptions): New.
	* c-common.h (flag_objc_sjlj_exceptions): Declare.
	* c-opts.c (c_common_handle_option): Set it.
	(c_common_post_options): Handle interation of different
	objective-c exception and runtime switches.
	* c-decl.c (c_eh_initialized_p): New.
	(finish_decl): Use it instead of local eh_initialized_p.
	* c-parse.in (nested_function, notype_nested_function): Record
	the result of compstmt.
	(compstmt_or_error): Likewise.
	(compstmt): Don't add_stmt the result.
	(stmt): Don't return anything.  Rewrite objc try and sync rules.
	(objc_try_stmt, objc_catch_list): Remove.
	(objc_catch_block, objc_finally_block): Remove.
	(objc_catch_prefix, objc_catch_clause, objc_opt_catch_list): New.
	(objc_try_catch_clause, objc_finally_clause): New.
	(objc_try_catch_stmt): Rewrite.
	* c-tree.h (c_eh_initialized_p): Declare.
	* c-opt (fobjc-sjlj-exceptions): New.
	* except.c (output_function_exception_table): Don't call cgraph
	on non-decls.
	* objc/objc-act.c (UTAG_EXCDATA_VAR, UTAG_CAUGHTEXC_VAR,
	UTAG_RETHROWEXC_VAR, UTAG_EVALONCE_VAR, struct val_stack,
	catch_count_stack, exc_binding_stack, if_nesting_count,
	blk_nesting_count, objc_enter_block, objc_exit_block,
	objc_declare_variable, val_stack_push, val_stack_pop,
	objc_build_try_enter_fragment, objc_build_extract_expr,
	objc_build_try_exit_fragment, objc_build_extract_fragment,
	objc_build_try_prologue, objc_build_try_epilogue,
	objc_build_catch_stmt, objc_build_catch_epilogue,
	objc_build_finally_prologue, objc_build_finally_epilogue,
	objc_build_try_catch_finally_stmt, objc_build_synchronized_prologue,
	objc_build_synchronized_epilogue): Remove.
	(objc_create_temporary_var, struct objc_try_context, cur_try_context,
	objc_eh_runtime_type, objc_init_exceptions, objc_build_exc_ptr,
	next_sjlj_build_try_exit, next_sjlj_build_enter_and_setjmp,
	next_sjlj_build_exc_extract, next_sjlj_build_catch_list,
	next_sjlj_build_try_catch_finally, objc_begin_try_stmt,
	objc_begin_catch_clause, objc_finish_catch_clause,
	objc_build_finally_clause, objc_finish_try_stmt,
	objc_build_synchronized): New.
	(objc_is_object_id, objc_is_class_id): New.
	(objc_comptypes): Use them.
	(build_next_objc_exception_stuff): Break NeXT sjlj out from
	build_objc_exception_stuff.
	(synth_module_prologue): Update to match.
	(objc_build_throw_stmt): Use cur_try_context to decide if
	we're in a @catch.
	* objc/objc-act.h: Update prototypes.
	(OCTI_EXCEPTION_BLK_STACK, objc_exception_block_stack): Remove.
testsuite/
        * objc.dg/sync-1.m: New.
        * objc.dg/try-catch-1.m: Don't force next runtime.
        * objc.dg/try-catch-3.m, objc.dg/try-catch-4.m: Likewise.
        * objc.dg/try-catch-2.m: Likewise.  Enable everywhere.  Remove
        shadowed catch clause.
        * objc.dg/try-catch-5.m: New.

From-SVN: r83332

1 files changed, 7 insertions, 13 deletions

diff --git a/gcc/objc/objc-act.h b/gcc/objc/objc-act.h
index 5738bc9..8794aa4 100644
--- a/gcc/objc/objc-act.h
+++ b/gcc/objc/objc-act.h
@@ -39,16 +39,13 @@ void finish_method_def (void);
 tree start_protocol (enum tree_code, tree, tree);
 void finish_protocol (tree);
 
-tree objc_build_throw_stmt (tree);
-tree objc_build_try_catch_finally_stmt (int, int);
-void objc_build_synchronized_prologue (tree);
-tree objc_build_synchronized_epilogue (void);
-tree objc_build_try_prologue (void);
-void objc_build_try_epilogue (int);
-void objc_build_catch_stmt (tree);
-void objc_build_catch_epilogue (void);
-tree objc_build_finally_prologue (void);
-tree objc_build_finally_epilogue (void);
+void objc_build_throw_stmt (tree);
+void objc_begin_try_stmt (location_t, tree);
+void objc_begin_catch_clause (tree);
+void objc_finish_catch_clause (void);
+void objc_build_finally_clause (location_t, tree);
+void objc_finish_try_stmt (void);
+void objc_build_synchronized (location_t, tree, tree);
 
 tree is_ivar (tree, tree);
 int is_private (tree);
@@ -282,7 +279,6 @@ enum objc_tree_index
     OCTI_LOCAL_EXCEPTION_DECL,
     OCTI_RETHROW_EXCEPTION_DECL,
     OCTI_EVAL_ONCE_DECL,
-    OCTI_EXCEPTION_BLK_STACK,
     OCTI_CATCH_TYPE,
 
     OCTI_MAX
@@ -402,8 +398,6 @@ extern GTY(()) tree objc_global_trees[OCTI_MAX];
 #define objc_caught_exception	objc_global_trees[OCTI_LOCAL_EXCEPTION_DECL]	
 #define objc_rethrow_exception	objc_global_trees[OCTI_RETHROW_EXCEPTION_DECL]	
 #define objc_eval_once		objc_global_trees[OCTI_EVAL_ONCE_DECL]	
-#define objc_exception_block_stack		\
-				objc_global_trees[OCTI_EXCEPTION_BLK_STACK]
 #define objc_catch_type		objc_global_trees[OCTI_CATCH_TYPE]
 
 #define objc_method_template	objc_global_trees[OCTI_METH_TEMPL]