AaronBallman wrote:

> Hi @AaronBallman , I ran a compile using this change on clang as you asked 
> and have results. The compile ran with no crashes or errors, and produced 
> 1478 bitfield-conversion warnings. I'll show a few examples below. To put 
> that number into context, I enabled -Wconversion to compare the new warning - 
> bitfield-conversion - with the other conversion checks. You can see from the 
> results that while 1478 findings is large, it's less than 10% of the total 
> conversion findings that exist - so looking at those numbers in context is 
> helpful.
> 
> Are there any other suggested improvements for this patch, or do you think 
> it's ok to merge?
> 
> ![image](https://user-images.githubusercontent.com/58314289/273438293-44313d33-6763-434b-92cb-37df8173209a.png)

Thank you for running the experiment! From spot-checking the results, did they 
help you to find any actual bugs? And did you notice any patterns in the 
results that could be used to safely silence the diagnostic in some cases?

https://github.com/llvm/llvm-project/pull/68276
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