[LLVMdev] BUILD_TRIPLET node.

[Evan Cheng]

On Sep 1, 2008, at 10:50 AM, sanjiv gupta wrote:

> Currently I can use a BUILD_PAIR to make a pair of two arbitrary  
> values
> to a desired result value. For example, I can make   i8,build_pair =
> (i8, i8)  or i16,build_pair = (i1, i8).
>
> This is turning out to very handy when I replace nodes during the
> expansion/legalization of types for my target.
>
> I was just wondering if we could go one more step further and create a
> BUILD_TRIPLET node which can contain three incoming operands instead  
> of
> just two.  I know that I can do that with two build_pairs , but a
> build_triplet will make my code cleaner and easy to follow.

We generally do not extend the IR just for convenience. Adding  
something like BUILD_TRIPLET is too arbitrary. It goes against the  
LLVM philosophy. Sorry.

Evan

>
>
> - Sanjiv
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