On 07/06/11 20:06, Richard Sandiford wrote:
> Bernd Schmidt <ber...@codesourcery.com> writes:
>> At some point we've grown a shift_truncation_mask hook, but we're not
>> using it everywhere we're masking shift counts. This patch changes the
>> instances I found.
>
> The documentation reads:
>
> Note that, unlike @code{SHIFT_COUNT_TRUNCATED}, this function does
> @emph{not} apply to general shift rtxes; it applies only to instructions
> that are generated by the named shift patterns.
Ouch. That is one seriously misnamed hook then.
> I think you need to update the documentation, and check that existing
> target definitions do in fact apply to shift rtxes as well.
Until I can do that, I've reverted this patch.
Bernd
