[clang] [CIR] cir.call with scalar return type (PR #135552)

[Erich Keane via cfe-commits]

https://github.com/erichkeane commented:

I have some concerns with how the `CIRGenFunctionInfo` objects are being created, then turned into a reference/never deleted.  

https://github.com/llvm/llvm-project/pull/135552