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Re: [RFC] PR 58542: const_int vs lost modes


> That's a fairly dangerous hack in my opinion, in particular this breaks the
> uniqueness of representation of -1 as constm1_rtx.  Can't we find a really
> contained hack instead, especially if we want to backport it to 4.8?

In particular, can't Uros' patch be considered as such here?  Frankly, the 
choice of 'true' vs 'false' for create_convert_operand_to in optabs isn't 
crystal clear...

-- 
Eric Botcazou


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