dwblaikie wrote:

> I.e., two `DIGlobalVariableExpression`s for the same `DIGlobalVariable`, 
> which AFAICT would confuse `DwarfDebug` at the moment, which expects there to 
> be a 1-to-1 mapping.

Would confuse `DwarfDebug` without your changes/this patch? Or only with this 
patch?
(& hopefully there's some way to reach the merge globals 
functionality/problem/interesting IR from clang itself - but I guess even if it 
isn't, this is still a demonstration of representational issues)

https://github.com/llvm/llvm-project/pull/72730
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