[Bug rtl-optimization/48401] [4.7 Regression] ICE: RTL check: access of elt 4 of 'var_location' with last elt 2 in expand_gimple_basic_block, at cfgexpand.c:3585

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48401

--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2011-04-01 18:45:23 UTC ---
Backtrace:

#4  0x000000000085dbed in rtl_check_failed_bounds (r=0x7ffff577e920, n=4,
file=Unhandled dwarf expression opcode 0xf3
) at /mnt/svn/gcc-trunk/gcc/rtl.c:737
#5  0x00000000005dfa69 in expand_gimple_basic_block (bb=0x7ffff7ee6340) at
/mnt/svn/gcc-trunk/gcc/cfgexpand.c:3585
#6  0x00000000005e3f18 in gimple_expand_cfg () at
/mnt/svn/gcc-trunk/gcc/cfgexpand.c:4120
#7  0x00000000007f0626 in execute_one_pass (pass=0x1648ac0) at
/mnt/svn/gcc-trunk/gcc/passes.c:1555
#8  0x00000000007f0915 in execute_pass_list (pass=0x1648ac0) at
/mnt/svn/gcc-trunk/gcc/passes.c:1610
#9  0x0000000000935545 in tree_rest_of_compilation (fndecl=0x7ffff576ef00) at
/mnt/svn/gcc-trunk/gcc/tree-optimize.c:422
#10 0x0000000000b01c77 in cgraph_expand_function (node=0x7ffff5773160) at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1575
#11 0x0000000000b043cc in cgraph_expand_all_functions () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1634
#12 cgraph_optimize () at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:1898
#13 0x0000000000b0494a in cgraph_finalize_compilation_unit () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1095
#14 0x00000000005090a4 in c_write_global_declarations () at
/mnt/svn/gcc-trunk/gcc/c-decl.c:9879
#15 0x00000000008de26d in compile_file (argc=15, argv=0x7fffffffdc78) at
/mnt/svn/gcc-trunk/gcc/toplev.c:591
#16 do_compile (argc=15, argv=0x7fffffffdc78) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1900
#17 toplev_main (argc=15, argv=0x7fffffffdc78) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1963
#18 0x00007ffff6487b6d in __libc_start_main () from /lib/libc.so.6
#19 0x00000000004efac1 in _start ()