| isTyCoVar bndr -- Type-lets may be created by doBeta
= scExpr' (extendScSubst env bndr rhs) body
- | otherwise -- Note [Local let bindings]
+ | otherwise
= do { let (body_env, bndr') = extendBndr env bndr
- body_env2 = extendHowBound body_env [bndr'] RecFun
- ; (body_usg, body') <- scExpr body_env2 body
-
; (rhs_usg, rhs_info) <- scRecRhs env (bndr',rhs)
+ ; let body_env2 = extendHowBound body_env [bndr'] RecFun
+ -- Note [Local let bindings]
+ RI _ rhs' _ _ _ = rhs_info
+ body_env3 = extendValEnv body_env2 bndr' (isValue (sc_vals env) rhs')
+
+ ; (body_usg, body') <- scExpr body_env3 body
+
-- NB: We don't use the ForceSpecConstr mechanism (see
-- Note [Forcing specialisation]) for non-recursive bindings
-- at the moment. I'm not sure if this is the right thing to do.