zahiraam added a comment.

In D135097#3840706 <https://reviews.llvm.org/D135097#3840706>, @aaron.ballman 
wrote:

> I'm also okay with this direction. I took a look to see if people seemed to 
> be using this option in their build scripts (maybe we would need a louder 
> deprecation period), and it seems like most of the uses out there are in 
> forks of Clang. Once I excluded things that looked too clang-like, I spotted: 
> https://sourcegraph.com/search?q=context:global+-file:.*test.*+-file:.*clang.*+-file:Tools.cpp+-menable-unsafe-fp-math&patternType=standard
>  -- I don't have the impression we need a deprecation period for this. (Do we 
> consider this to be a potentially breaking change we need to list in the 
> release notes/announcements/clang-vendors?) The changes should have a release 
> note, regardless of what heading we put it under.

@aaron.ballman There is a chapter in the RN called "Removed Compiler Flags". 
Some text should definitely be added there. I let other people chime in for the 
"potentially breaking" in the RN or somewhere else.


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