[Compiler Bug]: return without value causes bailout

[aeharding]

What kind of issue is this?

• React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
• babel-plugin-react-compiler (build issue installing or using the Babel plugin)
• eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
• react-compiler-healthcheck (build issue installing or using the healthcheck script)

Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAsgJ4DCEAtgA6EKY4AUAlEcADrFFyFg5eACwRwA1kQC8RKGAQBBWrQDKCADaicEGM2YCAhjgTtJAPiIBCCwaOsA3N25EieNEWYW4I8exgIcsJgOmE5EfgEwxADkQnhRwQC+3CAJQA

Repro steps

I noticed that return without a value (e.g. return vs return undefined) causes compiler to bailout. Please see the below examples:

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAsgJ4DCEAtgA6EKY4AUAlEcADrFFyFg5eACwRwA1kQC8RKGAQBBWrQDKCADaicEGM2YCAhjgTtJAPiIBCCwaOsA3N25EieNEWYW4I8exgIcsJgOmE5EfgEwxADkQnhRwQC+3CAJQA

vs

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAsgJ4DCEAtgA6EKY4AUAlEcADrFFyFg5eACwRwA1kQC8RKGAQBBWrQDKCADaicEGM2YCAhjgTtJAPiIBCCwaOsA3N25EieNEWYW4I8exgIcsMRYACYIaHiYCMEOmE5EfgEwxADkQnjJMQC+3CCZQA

prior discussion: reactwg/react-compiler#61

How often does this bug happen?

Every time

What version of React are you using?

0.0.0-experimental-6aa8254b-20250312

What version of React Compiler are you using?

0.0.0-experimental-ecdd742-20250312

[scato3]

can i fix it?

[suhaotian]

It's component, should always return something, for eaxmple: return null