SPARC: unsigned vs. signed int loads

Tom Rodriguez Thomas.Rodriguez at Sun.COM
Wed Feb 18 11:16:06 PST 2009


Actually once we have LoadUBNode then all T_BOOLEAN loads should be  
emitting those directly instead of relying ad tricks.

tom

On Feb 17, 2009, at 11:51 PM, Christian Thalinger wrote:

> On Tue, 2009-02-17 at 20:38 -0800, John Rose wrote:
>> On Feb 17, 2009, at 8:11 PM, Tom Rodriguez wrote:
>>>
>>> predicate(n->bottom_type() == TypeInt::BOOL);
>>>
>>
>> Or more generally, n->bottom_type()->as_int()->_lo >= 0.
>
> Sorry, I don't understand.  What does this predicate (or both) check
> for?  And where should it be, in loadB or loadUB?
>
> -- Christian
>




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