vectorise: Put it out of its misery

Poor DPH and its vectoriser have long been languishing; sadly it seems there is
little chance that the effort will be rekindled. Every few years we discuss
what to do with this mass of code and at least once we have agreed that it
should be archived on a branch and removed from `master`. Here we do just that,
eliminating heaps of dead code in the process.

Here we drop the ParallelArrays extension, the vectoriser, and the `vector` and
`primitive` submodules.

Test Plan: Validate

Reviewers: simonpj, simonmar, hvr, goldfire, alanz

Reviewed By: simonmar

Subscribers: goldfire, rwbarton, thomie, mpickering, carter

Differential Revision: https://phabricator.haskell.org/D4761

1 files changed, 0 insertions, 2 deletions

diff --git a/compiler/simplCore/CoreMonad.hs b/compiler/simplCore/CoreMonad.hs
index e5b449b516..912ff9949c 100644
--- a/compiler/simplCore/CoreMonad.hs
+++ b/compiler/simplCore/CoreMonad.hs
@@ -123,7 +123,6 @@ data CoreToDo           -- These are diff core-to-core passes,
   | CoreCSE
   | CoreDoRuleCheck CompilerPhase String   -- Check for non-application of rules
                                            -- matching this string
-  | CoreDoVectorisation
   | CoreDoNothing                -- Useful when building up
   | CoreDoPasses [CoreToDo]      -- lists of these things
 
@@ -149,7 +148,6 @@ instance Outputable CoreToDo where
   ppr CoreDoSpecialising       = text "Specialise"
   ppr CoreDoSpecConstr         = text "SpecConstr"
   ppr CoreCSE                  = text "Common sub-expression"
-  ppr CoreDoVectorisation      = text "Vectorisation"
   ppr CoreDesugar              = text "Desugar (before optimization)"
   ppr CoreDesugarOpt           = text "Desugar (after optimization)"
   ppr CoreTidy                 = text "Tidy Core"