"Shao, Cheng" <cheng.s...@tweag.io> writes: > Hi all, > > I'm thinking of adding "backend plugins" in the current Plugins > mechanism which allows one to inspect/modify the IRs post simplifier > pass (STG/Cmm), similar to the recently added source plugins for HsSyn > IRs. This can be useful for anyone creating a custom GHC backend to > target an experimental platform (e.g. the Asterius compiler which > targets WebAssembly), and previously in order to retrieve those IRs > from the regular pipeline, we need to use Hooks which is somewhat > hacky. > > Does this sound a good idea to you? If so, I can open a trac ticket > and a Phab diff for this feature. > Yes, during the Implementors' Workshop this year it seemed like there was considerable interest in such a mechanism. However, as Matthew said, the devil is in the details; before starting an implementation I would recommend that you open a ticket describing the specifics of the proposed interface. It also wouldn't hurt to motivate the proposal with a discussion of the concrete use-cases that the interface is meant to address.
Cheers, - Ben
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