[Bug rtl-optimization/59880] ix86_avoid_lea_for_addr is buggy

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59880

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Jakub Jelinek from comment #2)
> Ah, indeed, it is split because of the:
> (define_insn_and_split "*lea<mode>"
>   [(set (match_operand:SWI48 0 "register_operand" "=r")
>         (match_operand:SWI48 1 "address_no_seg_operand" "Ts"))]
> splitter.  I'd say it is a bug in ix86_avoid_lea_for_addr, that shouldn't
> have returned true in this case, where the second operand is (zero_extend:DI
> (reg:SI)).

My patch for PR 59379:

http://gcc.gnu.org/ml/gcc-patches/2014-01/msg01166.html

doesn't have this problem  Should we consider my patch instead?