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Re: [PATCH 1/5] Handle WORD_REGISTER_OPERATIONS when reloading (subreg(reg))

Matthew Fortune <Matthew.Fortune@imgtec.com> writes:
> Eric Botcazou <ebotcazou@adacore.com> writes:
>> > Thanks for reporting. I'll take a brief look first but revert if the
>> > issue isn't something that vaguely makes sense to me.
>> 
>> You need to restrict any WORD_REGISTER_OPERATIONS test to subword
>> registers.
>
> I've reverted this. I haven't been able to quickly find a change that
> I both feel is right and works. I am wondering if I actually don't
> need this change and that 'patch 3' (the change to
> simplify_operand_subreg) is the actual fix for both issues I have seen.

I think that patch might have a similar problem though, in that it
applies WORD_REGISTER_OPERATIONS semantics to things that might be
vectors.

Thanks,
Richard
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