[patch] for PR 17531

[Richard Sandiford]

Richard Henderson <rth@redhat.com> writes:
> On Thu, Sep 23, 2004 at 08:02:51PM +0200, Zdenek Dvorak wrote:
>> it is wrapped in NOP_EXPR.  NOP_EXPR is dropped in expander.
>
> Very enlightening.
>
> Specifically, I asked why the convert_to_mode around expr.c:7309
> isn't taking care of this.  Adding another convert_to_mode to
> work around this one not working is dumb.

FWIW: http://gcc.gnu.org/ml/gcc-patches/2004-09/msg01517.html
was the same thing.  Dunno if the explanation there will help.

Richard