http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48207
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Keywords| |lto
Last reconfirmed| |2011.03.21 13:12:20
Component|lto |debug
Blocks| |47819
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
Ever Confirmed|0 |1
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-21
13:12:20 UTC ---
Confirmed, mine.
We are processing BLOCKs of the function which has the TYPE_DECL.
#10 0x000000000093b5a4 in decls_for_scope (stmt=0x7ffff5b7edc0,
context_die=0x7ffff7ef8140, depth=1)
at /space/rguenther/src/svn/trunk/gcc/dwarf2out.c:20886
20886 process_scope_var (stmt, decl, NULL_TREE, context_die);
(gdb) p decl->base.code
$5 = TYPE_DECL
and we probably expect that a DIE was already created for it by
the FE:
else if (TREE_CODE (decl_or_origin) == TYPE_DECL
&& TYPE_DECL_IS_STUB (decl_or_origin))
die = lookup_type_die (TREE_TYPE (decl_or_origin));
...
if (die != NULL && die->die_parent == NULL)
add_child_die (context_die, die);
but we fall through to gen_decl_die. Then we run into
/* This is a GNU Extension. We are adding a
DW_AT_linkage_name attribute to the DIE of the
anonymous struct TYPE. The value of that attribute
is the name of the typedef decl naming the anonymous
struct. This greatly eases the work of consumers of
this debug info. */
add_linkage_attr (lookup_type_die (type), decl);
which we barf on as we didn't create assembler-names for TYPE_DECLs
and we can't at this point (the FE isn't anymore).
Btw, LTO should override decl_assembler_name with a gcc_unreachable ().
