------- Comment #5 from rguenth at gcc dot gnu dot org 2006-10-09 14:25 -------
The frontend marks foo () TREE_STATIC in start_preparsed_function () and later
TREE_NOTHROW in finish_function () because
/* If this function can't throw any exceptions, remember that. */
if (!processing_template_decl
&& !cp_function_chain->can_throw
&& !flag_non_call_exceptions)
TREE_NOTHROW (fndecl) = 1;
where cp_function_chain->can_throw is 0 (its initial value(?)).
Fixing that and the RTL problem fixes the testcase. I am, of course, not
sure if the C++ frontend fix is ok.
Index: except.c
===================================================================
--- except.c (revision 117569)
+++ except.c (working copy)
@@ -2787,6 +2787,9 @@ set_nothrow_function_flags (void)
{
rtx insn;
+ if (!targetm.binds_local_p (current_function_decl))
+ return 0;
+
TREE_NOTHROW (current_function_decl) = 1;
/* Assume cfun->all_throwers_are_sibcalls until we encounter
Index: cp/decl.c
===================================================================
--- cp/decl.c (revision 117569)
+++ cp/decl.c (working copy)
@@ -11081,7 +11081,8 @@ finish_function (int flags)
/* If this function can't throw any exceptions, remember that. */
if (!processing_template_decl
&& !cp_function_chain->can_throw
- && !flag_non_call_exceptions)
+ && !flag_non_call_exceptions
+ && targetm.binds_local_p (fndecl))
TREE_NOTHROW (fndecl) = 1;
/* This must come after expand_function_end because cleanups might
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2006-10-03 05:26:42 |2006-10-09 14:25:36
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29323
