GHC always beta-reduces.

It does not always inline.   For that: -ddump-inlinings

Simon

From: ghc-devs <ghc-devs-bounces@haskell.org> On Behalf Of David Feuer
Sent: 26 March 2018 23:59
To: ghc-devs@haskell.org
Subject: Missed beta reductions

What's the best way to find spots where GHC saw a redex and choose not to beta reduce? Is there a flag for that? It could be useful when trying to figure out why rules aren't firing.

David Feuer

Well-Typed, LLP