Note [Deterministic FV]

GHC/Utils/FV.hs:36 compiler

When computing free variables, the order in which you get them affects
the results of floating and specialization. If you use UniqFM to collect
them and then turn that into a list, you get them in nondeterministic
order as described in Note [Deterministic UniqFM] in GHC.Types.Unique.DFM.

References 1

Deterministic UniqFM GHC.Types.Unique.DFM

Referenced by 15

GHC.Tc.Types.Constraint call site ×13
GHC.Core.TyCo.FVs call site ×2