[LLVMdev] Type Legalizer Question.

[Evan Cheng]

On Oct 2, 2008, at 2:01 AM, sanjiv gupta wrote:

>
>>
>> So you have a i16 register class which makes the type legal. You can
>> make loads and stores legal (can you?). But you will have to custom
>> lower all other i16 operations. This will work, but it requires a lot
>> of target specific code.
>
> True. If we add the i16 reg class we will need to write a lot of  
> target specific code.
> To avoid that our idea was not to tell the legalizer about the i16  
> regclass and let it expand everything but ignore the pointers.

You can try just marking all i16 operations, other than load and  
store, as "expand". Would that work?

Evan

>
>
> - Sanjiv
>
>>>
>>>
>>>
>>>
>>>
>>>> Ciao,
>>>>
>>>> Duncan.
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