Hannes Siebenhandl pushed to branch wip/fendor/external-unit-db-cache at Glasgow Haskell Compiler / GHC

Commits:

• 510a0c2b
  by fendor at 2026-07-20T09:25:55+02:00

  Add regression test for #26423
  

• f5edbf8c
  by fendor at 2026-07-20T09:25:55+02:00

  WIP: introduce external unit database cache
  

• 5f6610fb
  by fendor at 2026-07-20T09:41:04+02:00

  Never modify UnitInfo for better sharing
  

• 46b94ad1
  by fendor at 2026-07-20T09:42:01+02:00

  WIP: Introduce UnitIndex for global data
  
  -------------------------
  Metric Decrease:
      MultiComponentModules
      MultiComponentModulesRecomp
      MultiComponentModulesRecomp100
      mhu-perf
  -------------------------
  

• 5fb5966b
  by fendor at 2026-07-20T09:45:33+02:00

  Split State.hs into many more modules
  

• 913a02a1
  by fendor at 2026-07-20T09:45:35+02:00

  Add memory usage regression test for UnitInfo
  

43 changed files:

• + changelog.d/unit-index
• compiler/GHC.hs
• compiler/GHC/Driver/Backpack.hs
• compiler/GHC/Driver/Env.hs
• compiler/GHC/Driver/Main/Hsc.hs
• compiler/GHC/Driver/Main/Interactive.hs
• compiler/GHC/Driver/Main/Passes.hs
• compiler/GHC/Driver/Session/Units.hs
• compiler/GHC/Types/Unique.hs
• compiler/GHC/Unit/Env.hs
• + compiler/GHC/Unit/External/Database.hs
• + compiler/GHC/Unit/External/Index.hs
• + compiler/GHC/Unit/External/ModuleOrigin.hs
• + compiler/GHC/Unit/External/Providers.hs
• + compiler/GHC/Unit/External/Query.hs
• + compiler/GHC/Unit/External/Substitution.hs
• + compiler/GHC/Unit/External/Validate.hs
• + compiler/GHC/Unit/External/Visibility.hs
• + compiler/GHC/Unit/External/Wired.hs
• compiler/GHC/Unit/Home/Graph.hs
• compiler/GHC/Unit/Info.hs
• compiler/GHC/Unit/State.hs
• compiler/GHC/Unit/State.hs-boot
• compiler/GHC/Unit/Types.hs
• compiler/ghc.cabal.in
• ghc/GHCi/UI.hs
• hadrian/src/Rules/Generate.hs
• libraries/ghc-boot/GHC/Unit/Database.hs
• testsuite/tests/count-deps/CountDepsParser.stdout
• + testsuite/tests/driver/T26423/Hello.hs
• + testsuite/tests/driver/T26423/Makefile
• + testsuite/tests/driver/T26423/T26423.hs
• + testsuite/tests/driver/T26423/T26423.stderr
• + testsuite/tests/driver/T26423/T26423.stdout
• + testsuite/tests/driver/T26423/all.T
• + testsuite/tests/driver/T26423/test/Test.hs
• + testsuite/tests/driver/T26423/test/test.pkg
• + testsuite/tests/driver/TUnitInfo/Foo.hs
• + testsuite/tests/driver/TUnitInfo/Makefile
• + testsuite/tests/driver/TUnitInfo/all.T
• + testsuite/tests/driver/TUnitInfo/generic-unit-info-space.hs
• + testsuite/tests/driver/TUnitInfo/generic-unit-info-space.stdout
• utils/haddock/haddock-api/src/Haddock.hs

The diff was not included because it is too large.