[Bug c++/51852] [regression] [c++11] tree check: expected tree_list, have HßèMÕþÿøtxøtsø

["zeratul976 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51852

--- Comment #3 from Nathan Ridge <zeratul976 at hotmail dot com> 2012-01-14 07:11:43 UTC ---
Here is stack trace of cc1plus at the point where it prints garbage:

#0  tree_check_failed (node=0x7fffdc568b40, file=0xf8f214
"../../src/gcc/cp/pt.c", line=1687, function=0xf94cd0
"eq_local_specializations") at ../../src/gcc/tree.c:8822
#1  0x0000000000533f71 in eq_local_specializations (p1=Unhandled dwarf
expression opcode 0xf3
) at ../../src/gcc/cp/pt.c:1687
#2  eq_local_specializations (p1=Unhandled dwarf expression opcode 0xf3
) at ../../src/gcc/cp/pt.c:1685
#3  0x0000000000f7aa4b in htab_find_with_hash (htab=0x2305090,
element=0x7fffede2f908, hash=4256980769) at ../../src/libiberty/hashtab.c:606
#4  0x00000000005310b5 in retrieve_local_specialization (tmpl=0x7fffede2f908)
at ../../src/gcc/cp/pt.c:1087
#5  0x0000000000562d1e in tsubst_decl (t=0x7fffede2f908, args=0x7fffd78a55a0,
complain=3) at ../../src/gcc/cp/pt.c:10396
#6  0x000000000055ad35 in tsubst (t=0x7fffede2f908, args=0x7fffd78a55a0,
complain=3, in_decl=Unhandled dwarf expression opcode 0xf3
) at ../../src/gcc/cp/pt.c:11114
#7  tsubst (t=0x7fffede2f908, args=0x7fffd78a55a0, complain=3,
in_decl=Unhandled dwarf expression opcode 0xf3
) at ../../src/gcc/cp/pt.c:11099
#8  0x00000000005625de in tsubst_decl (t=Unhandled dwarf expression opcode 0xf3
) at ../../src/gcc/cp/pt.c:10490
#9  0x000000000055ad35 in tsubst (t=0x7fffede2f990, args=0x7fffd78a55a0,
complain=3, in_decl=Unhandled dwarf expression opcode 0xf3
) at ../../src/gcc/cp/pt.c:11114
#10 tsubst (t=0x7fffede2f990, args=0x7fffd78a55a0, complain=3,
in_decl=Unhandled dwarf expression opcode 0xf3
) at ../../src/gcc/cp/pt.c:11099
#11 0x000000000057ea8e in instantiate_decl (d=0x7fffd7c8ac00, defer_ok=<value
optimized out>, expl_inst_class_mem_p=false) at ../../src/gcc/cp/pt.c:18534
#12 0x00000000005878cc in instantiate_pending_templates (retries=Unhandled
dwarf expression opcode 0xf3
) at ../../src/gcc/cp/pt.c:18828
#13 0x00000000005bebf4 in cp_write_global_declarations () at
../../src/gcc/cp/decl2.c:3763
#14 0x0000000000a3b7cc in compile_file (argc=36, argv=0x7fffffffe268) at
../../src/gcc/toplev.c:573
#15 do_compile (argc=36, argv=0x7fffffffe268) at ../../src/gcc/toplev.c:1938
#16 toplev_main (argc=36, argv=0x7fffffffe268) at ../../src/gcc/toplev.c:2014
#17 0x00007ffff6f06c4d in __libc_start_main () from /lib/libc.so.6
#18 0x00000000004e3921 in _start ()

The message "Unhandled dwarf expression opcode 0xf3" stands out - does this
help diagnose the problem?

I can give values of local variables too if you tell me which ones.