[LLVMdev] Convert a vector size

[Yakov Malinkovich]

I checked the spec for shuffle vector inst -
http://llvm.org/docs/doxygen/html/classllvm_1_1ShuffleVectorInst.html
It is not clear to me 100%.
Can you please send me example?
Or say what should be a mask?



On Fri, May 4, 2012 at 10:52 PM, Yakov Malinkovich <yakovm3 at gmail.com> wrote:
> I have a function that should work only with vector types having
> element type as a power of 2.
>
> So if I get total 48 bit vector I should force it to be rounded to
> total 64 bit vector
>
> Yakov
>
>
> On Fri, May 4, 2012 at 10:37 PM, Tim Northover <t.p.northover at gmail.com> wrote:
>>
>> > %temp = shufflevector <3 x i16> %incoming, <3 x i16> undef, <4 x i32>
>> > <i32 0, i32 1, i32 2, i32 undef>
>> > %out = bitcast <4 x i16> %temp to i64
>>
>> I seem to have misread the destination type, you'd obviously want "<1
>> x i64>" instead of "i64" in everything I've written.
>>
>> Tim.