https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71262

            Bug ID: 71262
           Summary: ICE when compiling mozilla-central (rev 298652)
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gk at torproject dot org
  Target Milestone: ---

Compiling mozilla-central (rev 298652) with the latest gcc (rev 236630) leads
to a compiler error:

 5:53.95
/home/thomas/Arbeit/Tor/mozilla-central/obj-x86_64-pc-linux-gnu/dist/include/mozilla/ClearOnShutdown.h:98:1:
interner Compiler-Fehler: Speicherzugriffsfehler
 5:53.95  ClearOnShutdown(SmartPtr* aPtr, ShutdownPhase aPhase =
ShutdownPhase::ShutdownFinal)
 5:53.95  ^~~~~~~~~~~~~~~
 5:54.40 0xd4944f crash_signal
 5:54.40        ../../gcc/toplev.c:333
 5:54.43 0xa66c39 operand_equal_p(tree_node const*, tree_node const*, unsigned
int)
 5:54.44        ../../gcc/fold-const.c:2769
 5:54.44 0xa66f17 operand_equal_p(tree_node const*, tree_node const*, unsigned
int)
 5:54.44        ../../gcc/fold-const.c:2751
 5:54.48 0xfdcdc5 array_at_struct_end_p(tree_node*)
 5:54.48        ../../gcc/tree.c:13100
 5:54.51 0xfafdd7 check_array_ref
 5:54.52        ../../gcc/tree-vrp.c:6427
 5:54.52 0xfc5c15 check_array_ref
 5:54.52        ../../gcc/tree-vrp.c:6413
 5:54.52 0xfc5c15 check_array_bounds
 5:54.52        ../../gcc/tree-vrp.c:6589
 5:54.52 0xff0ae2 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*,
void*), void*, hash_set<tree_node*, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hash_traits<tree_node*> >*))
 5:54.52        ../../gcc/tree.c:11650
 5:54.52 0xff107e walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*,
void*), void*, hash_set<tree_node*, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hash_traits<tree_node*> >*))
 5:54.52        ../../gcc/tree.c:11967
 5:54.53 0xadced0 walk_gimple_op(gimple*, tree_node* (*)(tree_node**, int*,
void*), walk_stmt_info*)
 5:54.53        ../../gcc/gimple-walk.c:203
 5:54.53 0xfbc350 check_all_array_refs
 5:54.53        ../../gcc/tree-vrp.c:6636
 5:54.53 0xfbc350 vrp_finalize
 5:54.53        ../../gcc/tree-vrp.c:10202
 5:54.53 0xfbc350 execute_vrp
 5:54.53        ../../gcc/tree-vrp.c:10295
 5:54.53 0xfbc350 execute
 5:54.53        ../../gcc/tree-vrp.c:10380

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