[llvm-commits] Patch: LegalizeType for promoting some operands

[Mon Ping Wang]

Hi Duncan,

For the insert issue, the following program will cause it.   The  
scalar to vector problem is show in widening where we generate a  
scalar_to_vector of an i64 to v2i64 (when we disable mmx).  I'm going  
to try to checkin the widening this weekend or Monday (it hasn't  
changed since the last patch). I'll try to construct IR that will  
generate a scalar_to_vector node with the current tot llvm.  The  
extract vector element is more difficult as it was shown in  
architecture where we need promote basic integer types.

Cheers,
-- Mon Ping

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On Dec 13, 2008, at 1:07 PM, Duncan Sands wrote:

> Hi Mon Ping, do you have any testcases?  I will reply completely  
> later.
>
> Ciao,
>
> Duncan.
>
> PS:
>
>>  - A modification to PromoteIntRes_EXTRACT_VECTOR_ELT to check if the
>> extract vector element type is the expected promoted type and if not,
>> then extend the result.
>
> Yes, this is a bug.