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| author | Sylvain Henry <sylvain@haskus.fr> | 2021-08-09 11:29:45 +0200 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-08-13 07:54:32 -0400 |
| commit | c367b39e5236b86b4923d826ab0395b33211d30a (patch) | |
| tree | 658e595a18356bcda04f3f72b168eb86bc51bf99 /compiler/GHC/Unit/Module/ModGuts.hs | |
| parent | 7ad813a480c9ed383fe1fea11a57f90d4f6f9b71 (diff) | |
| download | haskell-c367b39e5236b86b4923d826ab0395b33211d30a.tar.gz | |
Refactoring module dependencies
* Make mkDependencies pure
* Use Sets instead of sorted lists
Notable perf changes:
MultiLayerModules(normal) ghc/alloc 4130851520.0 2981473072.0 -27.8%
T13719(normal) ghc/alloc 4313296052.0 4151647512.0 -3.7%
Metric Decrease:
MultiLayerModules
T13719
Diffstat (limited to 'compiler/GHC/Unit/Module/ModGuts.hs')
| -rw-r--r-- | compiler/GHC/Unit/Module/ModGuts.hs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/GHC/Unit/Module/ModGuts.hs b/compiler/GHC/Unit/Module/ModGuts.hs index e799ebf2a1..1558e5944a 100644 --- a/compiler/GHC/Unit/Module/ModGuts.hs +++ b/compiler/GHC/Unit/Module/ModGuts.hs @@ -36,6 +36,8 @@ import GHC.Types.SourceFile ( HscSource(..), hscSourceToIsBoot ) import GHC.Types.SrcLoc import GHC.Types.CostCentre +import Data.Set (Set) + -- | A ModGuts is carried through the compiler, accumulating stuff as it goes -- There is only one ModGuts at any time, the one for the module @@ -135,7 +137,7 @@ data CgGuts cg_ccs :: [CostCentre], -- List of cost centres used in bindings and rules cg_foreign :: !ForeignStubs, -- ^ Foreign export stubs cg_foreign_files :: ![(ForeignSrcLang, FilePath)], - cg_dep_pkgs :: ![UnitId], -- ^ Dependent packages, used to + cg_dep_pkgs :: !(Set UnitId), -- ^ Dependent packages, used to -- generate #includes for C code gen cg_hpc_info :: !HpcInfo, -- ^ Program coverage tick box information cg_modBreaks :: !(Maybe ModBreaks), -- ^ Module breakpoints |