[llvm-dev] Can a Constant have more than one use?

[John Criswell via llvm-dev]

On 8/9/17 1:23 PM, Siddharth Bhat via llvm-dev wrote:
> As the question asks. IIRC, I have only seen constants use to:
>
> 1. setup globals
> 2. as "constant parameters" to instructions.
>
> In both these cases, from what I understand, they will have a single 
> use. Is it possible to create a Constant with multiple use(r)s?

I am nearly positive that constants can be used more than once. They 
subclass from Value.  I am sure that you can create a test program that 
uses the same constant value in different places and see if it generates 
one ConstantInt or multiple ConstantInts for the same constant integer.

Regards,

John Criswell

>
> Thanks,
> Siddharth
> -- 
> Sending this from my phone, please excuse any typos!
>
>
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-- 
John Criswell
Assistant Professor
Department of Computer Science, University of Rochester
http://www.cs.rochester.edu/u/criswell

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