[PATCH] [Multiprecision Arithmetic Optimization] Teach SelectionDAG how to promote the integer carry result of {add, sub}{c, e} to a larger integer type.

[Michael Gottesman]

Ok. I will post an updated patch in a bit.

On May 15, 2013, at 6:33 PM, Sean Silva <silvas at purdue.edu> wrote:

> +  SDValue Ops[3] = { N->getOperand(0), N->getOperand(1) };
> 
> Having an array of size 3 with only two initializers seems confusing in the sense that when I see this I think to myself "is this intentional, or is it a bug?". Don't make the reader guess whether this is a bug and instead explicitly list out 3 entries.
> 
> -- Sean Silva

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