[Bug c++/108773] [13 Regression] ICE in gimplify_var_or_parm_decl, at gimplify.cc:3058 compiling ceph since r13-4563-g1e1847612d7f169f

["rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108773

--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> ---
The variable is built from

#0  build_local_temp (type=<record_type 0x7ffff6a6dc78 allocator>)
    at /space/rguenther/src/gcc/gcc/cp/tree.cc:559
#1  0x000000000110fdc1 in force_target_expr (
    type=<record_type 0x7ffff6a6dc78 allocator>, 
    init=<constructor 0x7ffff6a827c8>, complain=3)
    at /space/rguenther/src/gcc/gcc/cp/tree.cc:932
#2  0x0000000001119933 in bot_manip (tp=0x7fffffffbcb8, 
    walk_subtrees=0x7fffffffbc54, data_=0x7fffffffbcc0)
    at /space/rguenther/src/gcc/gcc/cp/tree.cc:3181
#3  0x0000000001dc81e0 in walk_tree_1 (tp=0x7fffffffbcb8, 
    func=0x111965a <bot_manip(tree*, int*, void*)>, data=0x7fffffffbcc0, 
    pset=0x0, 
    lh=0x1124208 <cp_walk_subtrees(tree_node**, int*, tree_node*
(*)(tree_node**, int*, void*), void*, hash_set<tree_node*, false,
default_hash_traits<tree_node*> >*)>) at
/space/rguenther/src/gcc/gcc/tree.cc:11355
#4  0x000000000111aeaf in break_out_target_exprs (
    t=<target_expr 0x7ffff68bf7e0>, clear_location=true)
    at /space/rguenther/src/gcc/gcc/cp/tree.cc:3366
#5  0x0000000000d208e9 in convert_default_arg (
    type=<record_type 0x7ffff6a6dc78 allocator>, 
    arg=<target_expr 0x7ffff68bf7e0>, fn=<function_decl 0x7ffff6a6fb00 __ct >, 
    parmnum=1, complain=3) at /space/rguenther/src/gcc/gcc/cp/call.cc:9198
...

where build_local_temp doesn't add the variable to any BIND