[Bug lto/55525] ICE: tree check: expected array_type, have pointer_type in array_ref_low_bound, at expr.c:6768

["d.g.gorbachev at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55525

--- Comment #2 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2012-11-29 03:07:21 UTC ---
4.8.0:

In file included from :0:0:
1.c:3:6: warning: type of 's' does not match original declaration [enabled by
default]
 char s[8];
      ^
In file included from 1.c:8:0,
                 from :0:
2.c:1:7: note: previously declared here
 char *s = (char *) 0;
       ^
In file included from 1.c:8:0,
                 from :2:
1.c: In function 'main':
1.c:7:3: internal compiler error: tree check: expected array_type, have
pointer_type in array_ref_low_bound, at expr.c:6768
   return strcmp(&s[1], "foo");
   ^
0x87f7ab4 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
    ../../gcc-4.8/gcc/tree.c:8955
0x815572e tree_check(tree_node*, char const*, int, char const*, tree_code)
    ../../gcc-4.8/gcc/tree.h:3680
0x82c5aec array_ref_low_bound(tree_node*)
    ../../gcc-4.8/gcc/expr.c:6768
0x82c5118 get_inner_reference(tree_node*, long long*, long long*, tree_node**,
machine_mode*, int*, int*, bool)
    ../../gcc-4.8/gcc/expr.c:6616
0x817d9d4 get_object_alignment_2
    ../../gcc-4.8/gcc/builtins.c:295
0x817e46a get_pointer_alignment_1(tree_node*, unsigned int*, unsigned long
long*)
    ../../gcc-4.8/gcc/builtins.c:493
0x817e6e0 get_pointer_alignment(tree_node*)
    ../../gcc-4.8/gcc/builtins.c:540
0x8187fd8 expand_builtin_strcmp
    ../../gcc-4.8/gcc/builtins.c:3768
0x818f7d8 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
    ../../gcc-4.8/gcc/builtins.c:6193
0x82d407d expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
    ../../gcc-4.8/gcc/expr.c:10108
0x82c96a3 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**)
    ../../gcc-4.8/gcc/expr.c:7816
0x82beec7 store_expr(tree_node*, rtx_def*, int, bool)
    ../../gcc-4.8/gcc/expr.c:5192
0x82bdd8f expand_assignment(tree_node*, tree_node*, bool)
    ../../gcc-4.8/gcc/expr.c:4978
0x81d275a expand_call_stmt
    ../../gcc-4.8/gcc/cfgexpand.c:2113
0x81d2851 expand_gimple_stmt_1
    ../../gcc-4.8/gcc/cfgexpand.c:2153
0x81d2e99 expand_gimple_stmt
    ../../gcc-4.8/gcc/cfgexpand.c:2305
0x81d9a28 expand_gimple_basic_block
    ../../gcc-4.8/gcc/cfgexpand.c:4084
0x81db331 gimple_expand_cfg
    ../../gcc-4.8/gcc/cfgexpand.c:4603