Andreas Klebinger authored Oct 19, 2020 and Marge Bot committed Jan 28, 2021

This also means we compile GHC with -O1 instead of -O2 for some
platforms for CI. As a result a lot of test metrics
got worse which we now have to accept.

-------------------------
Metric Increase:
    ManyAlternatives
    ManyConstructors
    MultiLayerModules
    Naperian
    T10421
    T12150
    T12227
    T12234
    T12425
    T12545
    T12707
    T13035
    T13253
    T13253-spj
    T13701
    T13379
    T13719
    T14697
    T16577
    T18282
    T18698a
    T18698b
    T1969
    T3064
    T3294
    T4801
    T5205
    T5321FD
    T5321Fun
    T5631
    T6048
    T783
    T9020
    T9203
    T9233
    T9630
    T9872a
    T9872b
    T9872c
    T9872d
    T9961
    haddock.Cabal
    haddock.base
    haddock.compiler
    parsing001
    T5642
    WWRec
    T14683
    T15164
    T18304
    T18923
-------------------------