[Bug middle-end/53433] [4.8 Regression] ICE in int_mode_for_mode, at stor-layout.c:424 during lto-bootstrap

["vincenzo.innocente at cern dot ch" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53433

--- Comment #16 from vincenzo Innocente <vincenzo.innocente at cern dot ch> 2012-06-01 13:27:55 UTC ---
in case it helps


run -fpreprocessed test.i -O2 -o bha.s
Starting program: /home/data/newsoft/gcc-build/gcc/cc1 -fpreprocessed test.i
-O2 -o bha.s
reading VI .tcshrc
tty
resize: Command not found.
test.i:2:1: warning: data definition has no type or storage class [enabled by
default]
 b;
 ^
 d_demangle_callback
Analyzing compilation unit
Performing interprocedural optimizations
 <*free_lang_data> <visibility> <early_local_cleanups> <whole-program>
<profile_estimate> <cp> <inline> <pure-const> <static-var>Assembling functions:
 d_demangle_callback
Breakpoint 1, int_mode_for_mode (mode=VOIDmode) at
../../gcc-trunk/gcc/stor-layout.c:392
392      switch (GET_MODE_CLASS (mode))
(gdb) where
#0  int_mode_for_mode (mode=VOIDmode) at ../../gcc-trunk/gcc/stor-layout.c:392
#1  0x0000000000c89832 in emit_move_via_integer (mode=VOIDmode,
x=0x7ffff6d30c40, y=0x7ffff6d30ae0, force=Unhandled dwarf expression opcode
0xf3
) at ../../gcc-trunk/gcc/expr.c:3059
#2  0x000000000079b116 in emit_move_insn_1 (x=0x7ffff6d30c40, y=0x7ffff6d30ae0)
at ../../gcc-trunk/gcc/expr.c:3434
#3  0x000000000079b491 in emit_move_insn (x=0x7ffff6d30c40, y=0x7ffff6d30ae0)
at ../../gcc-trunk/gcc/expr.c:3497
#4  0x00000000007a764b in copy_to_reg (x=0x7ffff6d30ae0) at
../../gcc-trunk/gcc/explow.c:620
#5  0x0000000000592988 in gen_lowpart_general (mode=QImode, x=Unhandled dwarf
expression opcode 0xf3
) at ../../gcc-trunk/gcc/rtlhooks.c:50
#6  0x0000000000c62f47 in gen_cmpstrnsi (operand0=0x7ffff6d30ae0,
operand1=Unhandled dwarf expression opcode 0xf3
) at ../../gcc-trunk/gcc/config/i386/i386.md:16357
#7  0x000000000059a752 in
_ZL22expand_builtin_strncmpP9tree_nodeP7rtx_def12machine_mode.isra.40
(exp=0x7ffff6d2dd20, target=0x7ffff6d309a0)
    at ../../gcc-trunk/gcc/builtins.c:4083
#8  0x000000000059ccd5 in expand_builtin (exp=0x7ffff6d2dd20, target=Unhandled
dwarf expression opcode 0xf3
) at ../../gcc-trunk/gcc/builtins.c:6252
#9  0x0000000000796a6d in expand_expr_real_1 (exp=0x7ffff6d2dd20, target=<value
optimized out>, tmode=SImode, modifier=EXPAND_NORMAL, 
    alt_rtl=0x7fffffffd9c8) at ../../gcc-trunk/gcc/expr.c:10155
#10 0x000000000079a51e in expand_expr_real (exp=0x7ffff6d2dd20,
target=Unhandled dwarf expression opcode 0xf3
) at ../../gcc-trunk/gcc/expr.c:7852
#11 0x000000000057ea62 in store_expr (exp=0x7ffff6d2dd20,
target=0x7ffff6d309a0, call_param_p=0, nontemporal=Unhandled dwarf expression
opcode 0xf3
) at ../../gcc-trunk/gcc/expr.c:5162
#12 0x0000000000587f6e in expand_assignment (to=0x7ffff6d2d870,
from=0x7ffff6d2dd20, nontemporal=Unhandled dwarf expression opcode 0xf3
) at ../../gcc-trunk/gcc/expr.c:4948
#13 0x00000000009bbd43 in expand_call_stmt (stmt=0x7ffff6d43690) at
../../gcc-trunk/gcc/cfgexpand.c:2080
#14 expand_gimple_stmt_1 (stmt=0x7ffff6d43690) at
../../gcc-trunk/gcc/cfgexpand.c:2121
#15 expand_gimple_stmt (stmt=0x7ffff6d43690) at
../../gcc-trunk/gcc/cfgexpand.c:2273
#16 0x0000000000b4fea1 in expand_gimple_basic_block (bb=0x7ffff6c0fbd0) at
../../gcc-trunk/gcc/cfgexpand.c:4039
#17 0x00000000008c4464 in gimple_expand_cfg () at
../../gcc-trunk/gcc/cfgexpand.c:4557
#18 0x0000000000bc0225 in execute_one_pass (pass=0x11691c0) at
../../gcc-trunk/gcc/passes.c:2164
#19 0x0000000000bc0715 in execute_pass_list (pass=0x11691c0) at
../../gcc-trunk/gcc/passes.c:2219
#20 0x0000000000bbfb46 in expand_function (node=0x7ffff6c1b750) at
../../gcc-trunk/gcc/cgraphunit.c:1622
#21 0x0000000000d11f6e in expand_all_functions () at
../../gcc-trunk/gcc/cgraphunit.c:1727
#22 compile () at ../../gcc-trunk/gcc/cgraphunit.c:2025
#23 compile () at ../../gcc-trunk/gcc/cgraphunit.c:1949
#24 0x0000000000d12785 in finalize_compilation_unit () at
../../gcc-trunk/gcc/cgraphunit.c:2102
#25 0x0000000000d12928 in c_write_global_declarations () at
../../gcc-trunk/gcc/c-decl.c:10106
#26 c_write_global_declarations () at ../../gcc-trunk/gcc/c-decl.c:10049
#27 0x000000000097ea26 in compile_file (argc=6, argv=0x7fffffffdf58) at
../../gcc-trunk/gcc/toplev.c:566
#28 do_compile (argc=6, argv=0x7fffffffdf58) at
../../gcc-trunk/gcc/toplev.c:1870
#29 toplev_main (argc=6, argv=0x7fffffffdf58) at
../../gcc-trunk/gcc/toplev.c:1946
#30 0x000000371721ecdd in __libc_start_main () from /lib64/libc.so.6
#31 0x00000000004b3f39 in _start ()
(gdb) s
391    {
(gdb) s
392      switch (GET_MODE_CLASS (mode))
(gdb) s
416          if (mode == BLKmode)
(gdb) s
390    int_mode_for_mode (enum machine_mode mode)
(gdb) s
int_mode_for_mode (mode=VOIDmode) at ../../gcc-trunk/gcc/stor-layout.c:423
423          gcc_unreachable ();
(gdb) s
fancy_abort (file=0xeefc38 "../../gcc-trunk/gcc/stor-layout.c", line=423,
function=0xf07160 "int_mode_for_mode") at ../../gcc-trunk/gcc/diagnostic.c:1010
1010    {