[Bug middle-end/46717] Compiler segfault in profile-use mode

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46717

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #10 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-30 12:35:28 UTC ---
Coming from indirect-function call profiling for a call that can throw.

<bb 39>:
D.479965_99 = MEM[(struct _List_node_base *)D.414535_48]._M_prev;
D.414537_51 = MEM[(struct linked_streambuf * &)D.479965_99 + 16];
PROF.4112_148 = [obj_type_ref] OBJ_TYPE_REF(D.414534_47;prev_1->14);
PROF.4112_149 = (void *) set_next;
if (PROF.4112_149 == PROF.4112_148)
  goto <bb 53>;
else
  goto <bb 54>;

;; succ:       55 [100.0%]  count:63 (fallthru)
<bb 53>:
boost::iostreams::detail::indirect_streambuf<boost::iostreams::basic_gzip_compressor<>,
std::char_traits<char>, std::allocator<char>,
boost::iostreams::input>::set_next (prev_1, D.414537_51);
goto <bb 55>;

;; succ:       55 [100.0%]  (fallthru) 50 (eh)
<bb 54>:
OBJ_TYPE_REF(D.414534_47;prev_1->14) (prev_1, D.414537_51);

<bb 55>:
...

;; basic block 50, loop depth 0, count 0
;; prev block 49, next block 51
;; pred:       30 (eh,exec) 40 (eh,exec) 54 (eh)
;; succ:       51 [69.8%]  (true,exec) 52 [30.2%]  (false,exec)
# buf$_M_ptr_138 = PHI <D.353926_28(30), buf$_M_ptr_132(40), (54)>


Mine.