debugging internal compiler errors ...

[kevin diggs]

Hi,

On Sun, Apr 17, 2011 at 11:38 PM, Ian Lance Taylor <iant@google.com> wrote:
> kevin diggs <diggskevin38@gmail.com> writes:
>
>> Based on this:
>>
>> #12 0x0813c8b9 in expand_expr_real_1 (exp=0xb73c76ac, target=0x0,
>>     tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0)
>>     at ../../gcc-4.3.5/gcc/expr.c:9158
>> 9158          expand_assignment (lhs, rhs, MOVE_NONTEMPORAL (exp));
>> (gdb) call debug_rtx(lhs)
>> (const/j (nil))
>> (gdb) call debug_rtx(rhs)
>> (lshiftrt (nil)
>>     (nil))
>
> That certainly looks wrong.  There shouldn't be any "(nil)" there.
> Either the debugger is confused or the compiler is confused.
>
>
> Ian
>

Sorry, Ian. Both lhs and rhs are trees. So I am guessing the
debug_rtx() output is meaningless?

kevin1