Hoopl: remove dependency on Hoopl package

This copies the subset of Hoopl's functionality needed by GHC to
`cmm/Hoopl` and removes the dependency on the Hoopl package.

The main motivation for this change is the confusing/noisy interface
between GHC and Hoopl:
- Hoopl has `Label` which is GHC's `BlockId` but different than
  GHC's `CLabel`
- Hoopl has `Unique` which is different than GHC's `Unique`
- Hoopl has `Unique{Map,Set}` which are different than GHC's
  `Uniq{FM,Set}`
- GHC has its own specialized copy of `Dataflow`, so `cmm/Hoopl` is
  needed just to filter the exposed functions (filter out some of the
  Hoopl's and add the GHC ones)
With this change, we'll be able to simplify this significantly.
It'll also be much easier to do invasive changes (Hoopl is a public
package on Hackage with users that depend on the current behavior)

This should introduce no changes in functionality - it merely
copies the relevant code.

Signed-off-by: Michal Terepeta <michal.terepeta@gmail.com>

Test Plan: ./validate

Reviewers: austin, bgamari, simonmar

Reviewed By: bgamari, simonmar

Subscribers: simonpj, kavon, rwbarton, thomie

Differential Revision: https://phabricator.haskell.org/D3616

1 files changed, 1 insertions, 2 deletions

diff --git a/ghc.mk b/ghc.mk
index 3fafcf0ac9..cdab331486 100644
--- a/ghc.mk
+++ b/ghc.mk
@@ -430,7 +430,7 @@ else # CLEANING
 # programs such as GHC and ghc-pkg, that we do not assume the stage0
 # compiler already has installed (or up-to-date enough).
 
-PACKAGES_STAGE0 = binary Cabal/Cabal hpc ghc-boot-th ghc-boot hoopl transformers template-haskell ghci
+PACKAGES_STAGE0 = binary Cabal/Cabal hpc ghc-boot-th ghc-boot transformers template-haskell ghci
 ifeq "$(Windows_Host)" "NO"
 PACKAGES_STAGE0 += terminfo
 endif
@@ -461,7 +461,6 @@ PACKAGES_STAGE1 += Cabal/Cabal
 PACKAGES_STAGE1 += ghc-boot-th
 PACKAGES_STAGE1 += ghc-boot
 PACKAGES_STAGE1 += template-haskell
-PACKAGES_STAGE1 += hoopl
 PACKAGES_STAGE1 += transformers
 PACKAGES_STAGE1 += ghc-compact