goldsteinn wrote:

> Since the langref definition is based on GEP, can we use index width instead 
> of pointer width? If you disagree with this, it would still be good if you 
> could add a test where the datalayout has index width < pointer width to show 
> the current semantics.

Any target inmind? But I think ptrwidth makes more sense given that the result 
is a pointer. It would be awkward to have resize things like knownbits / etc... 
and would somewhat make ptrmask useless as basically any mask would result in a 
low-bit only pointer.

https://github.com/llvm/llvm-project/pull/67166
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