- Jul 19, 2019
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Ben Gamari authored
See #16803.
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Ben Gamari authored
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- Jul 16, 2019
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Unfortunately this will require more work; register allocation is quite broken. This reverts commit acd79558.
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- Jul 14, 2019
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These are unexploded minds as far as the linter is concerned. I don't want to hit in my MRs by mistake! I did this with `sed`, and then rolled back some changes in the docs, config.guess, and the linter itself.
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- Jul 12, 2019
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In one spot in kcConDecl we were passing in the return kind signature rether than the return kind. e.g. #16828 newtype instance Foo :: Type -> Type where MkFoo :: a -> Foo a We were giving kcConDecl the kind (Type -> Type), whereas it was expecting the ultimate return kind, namely Type. This "looking past arrows" was being done, independently, in several places, but we'd missed one. This patch moves it all to one place -- the new function kcConDecls (note the plural). I also took the opportunity to rename tcDataFamHeader to tcDataFamInstHeader (The previous name was consistently a source of confusion.)
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- Jul 11, 2019
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Previously, GHC would typecheck the `via` type once per class in a `deriving` clause, which caused the problems observed in #16923. This patch restructures some of the functionality in `TcDeriv` and `TcHsType` to avoid this problem. We now typecheck the `via` type exactly once per `deriving` clause and *then* typecheck all of the classes in the clause. See `Note [Don't typecheck too much in DerivingVia]` in `TcDeriv` for the full details.
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- Jul 10, 2019
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The simple optimiser was making an invalid transformation to join points -- yikes. The fix is easy. I also added some documentation about the fact that GHC uses a slightly more restrictive version of join points than does the paper. Fix #16918
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- Rename requires_th to req_th for consistency with other req functions (e.g. req_interp, req_profiling etc.) - req_th (previously requires_th) now checks for interpreter (via req_interp). With this running TH tests are skipped when running the test suite with stage=1. - Test tweaks: - T9360a, T9360b: Use req_interp - recomp009, T13938, RAE_T32a: Use req_th - Fix check-makefiles linter: it now looks for Makefiles instead of .T files (which are actually Python files) -
Renames performance metrics to include whether they are compile-time or runtime metrics.
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If the union of dependencies of imported modules change, the `mi_deps` field of the interface files should change as well. Because of that, we need to check for changes in this in recompilation checker which we are not doing right now. This adds a checks for that.
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- Jul 09, 2019
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Ryan Scott authored
To avoid having to `panic` any time a TTG extension constructor is consumed, this MR introduces an uninhabited 'NoExtCon' type and uses that in every extension constructor's type family instance where it is appropriate. This also introduces a 'noExtCon' function which eliminates a 'NoExtCon', much like 'Data.Void.absurd' eliminates a 'Void'. I also renamed the existing `NoExt` type to `NoExtField` to better distinguish it from `NoExtCon`. Unsurprisingly, there is a lot of code churn resulting from this. Bumps the Haddock submodule. Fixes #15247.
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- Jul 08, 2019
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- Jul 05, 2019
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Attach the `SrcSpan` of the first pattern synonym binding involved in the recursive group when throwing the corresponding error message, similarly to how it is done for type synonyms. Fixes #16900.
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Ticket #16247 showed that we were discarding an implication constraint that had empty ic_wanted, when we still needed to keep it so we could check whether it had a bad telescope. Happily it's a one line fix. All the rest is comments!
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In the eager unifier, when unifying (tv1 ~ tv2), when we decide to swap them over, to unify (tv2 ~ tv1), I'd forgotten to ensure that tv1's kind was fully zonked, which is an invariant of uUnfilledTyVar2. That could lead us to build an infinite kind, or (in the case of #16902) update the same unification variable twice. Yikes. Now we get an error message rather than non-termination, which is much better. The error message is not great, but it's a very strange program, and I can't see an easy way to improve it, so for now I'm just committing this fix. Here's the decl data F (a :: k) :: (a ~~ k) => Type where MkF :: F a and the rather error message of which I am not proud T16902.hs:11:10: error: • Expected a type, but found something with kind ‘a1’ • In the type ‘F a’ -
Before this refactoring: * DerivInfo for data family instances was returned from tcTyAndClassDecls * DerivInfo for data declarations was generated with mkDerivInfos and added at a later stage of the pipeline in tcInstDeclsDeriv After this refactoring: * DerivInfo for both data family instances and data declarations is returned from tcTyAndClassDecls in a single list. This uniform treatment results in a more convenient arrangement to fix #16731.
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- Jul 03, 2019
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Commit cef80c0b debuted a breaking change to `template-haskell`, so in order to guard against it properly with CPP, we need to bump the `template-haskell` version number accordingly.
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This adds support for constructing vector types from Float#, Double# etc and performing arithmetic operations on them Cleaned-Up-By:Ben Gamari <ben@well-typed.com>
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- Jul 02, 2019
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- Jun 27, 2019
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- Jun 26, 2019
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Ben Gamari authored
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Ben Gamari authored
This allows us to run (but ignore the result of) fragile testcases. Hopefully this should allow us to more easily spot when a fragile test becomes un-fragile.
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Ben Gamari authored
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Ben Gamari authored
This is the same as T5611 but with an unsafe call to sleep.
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Ben Gamari authored
The original issue, #5611, was concerned with safe calls. However, the test inexplicably used an unsafe call. Fix this.
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Ben Gamari authored
The test seems to have been missing the name of its script and didn't build with HEAD. How it made it through CI is beyond me.
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This commit partly reverts e69619e9 commit by reintroducing Sf_SafeInferred SafeHaskellMode. We preserve whether module was declared or inferred Safe. When declared-Safe module imports inferred-Safe, we warn. This inferred status is volatile, often enough it's a happy coincidence, something which cannot be relied upon. However, explicitly Safe or Trustworthy packages won't accidentally become Unsafe. Updates haddock submodule.
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Metric Increase: haddock.Cabal -
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Sleep to avoid non-determinism due to Darwin's poor mtime resolution. Fixes #16855.
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Previously, as described in Note [Primop wrappers], `hasNoBinding` would return False in the case of `PrimOpId`s. This would result in eta expansion of unsaturated primop applications during CorePrep. Not only did this expansion result in unnecessary allocations, but it also meant lead to rather nasty inconsistencies between the CAFfy-ness determinations made by TidyPgm and CorePrep. This fixes #16846.
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