I was a little surprised to see that the `useIR` f...

# jvm-ir-backend-feedback

[ralf]

I was a little surprised to see that the useIR flag became a no-op with 1.5. Was this intentional? I’m aware that the new IR backend will be the default with 1.5. But I assumed setting it to false will go back to the old backend (rather than using another property). https://github.com/JetBrains/kotlin/blob/1.5.0-M1/compiler/cli/src/org/jetbrains/kotlin/cli/jvm/jvmArguments.kt#L195-L200

[Ivan Kubyshkin [JetBrains]]

cc @udalov

[udalov]

It's intentional. We'll deprecate it in 1.5.0. We'd like to get rid of this flag from users' projects as soon as possible, to be able to drop the old backend altogether in a future release.
I've created an issue so that we don't forget to do it: https://youtrack.jetbrains.com/issue/KT-45504

[ralf]

Got it, thanks for confirming 👍