Fix LowerSDIV24

[Matt Arsenault]

On Jul 10, 2014, at 6:28 AM, Jan Vesely <jan.vesely at rutgers.edu> wrote:
>> 
> 
> I think we need to move i24 handling to SDIVREM since i32 and i64 algs
> for udivrem produce rem values as a side product and don't do X - Y *
> (X / Y).
> 
> All llvm tests and piglits 'scalar-arithmetic-(u)int' still pass for me
> with the attached patches applied on top of yours.



These look fine to me. I’ll commit my part. Here are also some more tests for sdiv24 and srem24 someone can apply to piglit.

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