[llvm] [CGData] Global Merge Functions (PR #112671)

[Kyungwoo Lee via llvm-commits]

kyulee-com wrote:

> Hi,
> 
> I've no idea if this is expected but I noticed that if I run `opt -passes=global-merge-func gmf.ll -o /dev/null` on gmf.ll being
> 
> ```
> @0 = global { { ptr, i32, i32 } } { { ptr, i32, i32 } { ptr null, i32 19, i32 5 } }
> @1 = global { { ptr, i32, i32 } } { { ptr, i32, i32 } { ptr null, i32 22, i32 5 } }
> ```
> 
> it crashes like

Thank you for testing this! I can't reproduce the issue on my end, but I suspect it might be due to the module summary being run twice, even though it's optional.
Could you please try out https://github.com/llvm/llvm-project/pull/116241 again?

https://github.com/llvm/llvm-project/pull/112671