1

Recently I found that implicit Optional unwrap seems to incur more copy operations in our internal codebase, and I've reproduced it in Compiler Explorer:

Is this behavior unknown and unexpected? If that's the case I'd submit an issue.

2

Could you show the Swift code that produced each result?

3

You can minimize the diff view at the top-right corner in the Compiler Explorer to see the respective code editors.

4

Ah, thanks