[flang-commits] [flang] [flang] introduce fir.copy to avoid load store of aggregates (PR #130289)

[Slava Zakharin via flang-commits]

vzakhari wrote:

I think while we are using TBAA the way Tom described we have to be able to attach two TBAA tags for the source and the destination of `fir.copy`, then in `CodeGen` we will be able to apply them to the corresponding load and store.

The `AddAliasTagsPass` will need to handle `fir.copy` specially by tracing both operands to their sources.

https://github.com/llvm/llvm-project/pull/130289