For the love of god, I can't find any mention in t...

# announcements

[Big Chungus]

For the love of god, I can't find any mention in the docs on how to enable IR mode for JVM target... Maybe anyone here will know?

[stephanmg]

do you mean this?

[stephanmg]

kotlinOptions.useIR = true

[stephanmg]

@ gradle.build

[Big Chungus]

On kotlinCompile tasks?

[stephanmg]

my guess would be in compileKotlin { … }

[Big Chungus]

Great, thanks!

[Robert Jaros]

Why is IR on JVM interesting?

[Big Chungus]

It's not, just a future of unified compiler backends for kotlin

[Big Chungus]

There's no reason to use it now unless you're doing compose stuff

[louiscad]

There's one big reason to use it: find bugs and report them so they get fixed instead of released in the so called "stable" release once they think it's the time.

[Animesh Sahu]

tasks.withType<KotlinCompile> {
    kotlinOptions {
        useIR = true 
        // freeCompilerArgs += listOf("-Xuse-ir")  //fallback
    }
}

[louiscad]

BTW, there's no need for any fallback (referring to your commented out code).

[Big Chungus]

Would be nice to have it as an option on target declarations (like for JS). e.g.

kotlin {
  jvm(IR) {...}
}

[Alexey Belkov [JB]]

There is https://youtrack.jetbrains.com/issue/KT-42089 for that