I’m afraid I don’t understand the question. Can you show a small test case and make your question concrete?

Simon

From: ghc-devs <ghc-devs-bounces@haskell.org> On Behalf Of Gabor Greif
Sent: 13 December 2018 06:10
To: ghc-devs <ghc-devs@haskell.org>
Subject: Post-spec optimisation, wen and where

Hi devs,

I am wondering where the optimisation (e.g. simplified) of specialised dictionaries is taking place. In my case -ddump-spec shows unoptimised, but -ddump-simpl-iterations shows already optimised dictionaries (float-out already happened).

I searched yesterday, but to no avail.

Thanks,

   Gabor