- ghc-commits - Haskell.org

[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 8 commits: Increase test coverage of diagnostics, batch 2
by Marge Bot (＠marge-bot) 14 Aug '26

14 Aug '26

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: b19fcc1c by Vladislav Zavialov at 2026-08-14T06:26:11-04:00 Increase test coverage of diagnostics, batch 2 Add test cases for the previously untested diagnostics: [GHC-26133] TcRnForeignImportPrimSafeAnn [GHC-68444] SumAltArityExceeded [GHC-63966] IllegalSumAlt [GHC-23882] IllegalDeclaration [GHC-60220] InvalidCCallImpent [GHC-18816] RecGadtNoCons [GHC-38140] GadtNoCons [GHC-37056] InvalidTypeInstanceHeader [GHC-78486] InvalidTyFamInstLHS [GHC-39639] DefaultDataInstDecl [GHC-78822] AssocDefaultNotAssoc [GHC-43510] NotSimpleUnliftedType [GHC-41843] IOResultExpected [GHC-07641] AtLeastOneArgExpected [GHC-52886] InvalidTopDecl Remove unused error constructors: [GHC-92057] ImportLookupAmbiguous - - - - - 7b27f25a by Simon Jakobi at 2026-08-14T06:26:54-04:00 testsuite: Drop peak_megabytes_allocated from LinkableUsage tests LinkableUsage01/02 collected all metrics with a 2% tolerance. For peak_megabytes_allocated, whose granularity is 1 MB, that window is under 0.7 MB at this test's ~34 MB peak, so any 1 MB step failed the test (#27613, #27489). Drop that metric: max_bytes_used guards the Linkable-retention property with byte granularity, at a tolerance that still comfortably exceeds the noise observed in CI. Assisted-by: Claude Fable 5 - - - - - e5de423b by Simon Jakobi at 2026-08-14T06:26:54-04:00 testsuite: Don't truncate fractional baselines when computing bounds RelativeMetricAcceptanceWindow.get_bounds truncated the baseline with int() before applying the tolerance. Baselines can be fractional (they are averaged over several measurements), so this skewed the acceptance window downwards: in #27613, a baseline of 33.67 at 2% tolerance yielded bounds (32, 34) instead of (32, 35), rejecting a measurement that was within tolerance. Assisted-by: Claude Fable 5 - - - - - 83f98e88 by Simon Jakobi at 2026-08-14T11:36:20-04:00 testsuite: Expect length001 failure in nonmoving_thr_sanity length001 relies on an optimization rule to avoid excessive stack use. The nonmoving_thr_sanity way does not enable optimization, so classify its stack overflow as an expected failure, as is already done for the other unoptimized nonmoving ways. Assisted-by: gpt-5.6-sol via Codex CLI - - - - - c49c7afc by Simon Jakobi at 2026-08-14T11:36:20-04:00 testsuite: Omit T22859 in nonmoving threaded ways T22859 checks allocation-limit handlers with output that depends on precise allocation behaviour. The nonmoving threaded ways change where these limits are reached, just as the already-omitted LLVM ways do. Omit these ways instead of treating their incidental output differences as test failures. Assisted-by: gpt-5.6-sol via Codex CLI - - - - - 015900a9 by Simon Jakobi at 2026-08-14T11:36:20-04:00 rts/js: Implement eq_thread, and test Eq/Ord ThreadId (#16761) Since d1f3c63701, Eq ThreadId is implemented via the RTS function eq_thread, but the JS RTS never provided it, so comparing ThreadIds for equality on the JS backend crashed with ReferenceError: h$eq_thread is not defined Like the C implementation, h$eq_thread uses pointer equality: The JS RTS has exactly one thread object per thread. Since previously no test exercised eq_thread directly, this commit adds a test covering equality, its stability across GC, and agreement with Ord. Assisted-by: Claude Fable 5 - - - - - 2a12d702 by Simon Jakobi at 2026-08-14T11:36:20-04:00 testsuite: Make listThreads1 insensitive to the RTS's own threads listThreads1 expected `listThreads` to return exactly [ThreadId 1]. That holds only under a non-threaded RTS. Under a threaded RTS however there are more threads present, so we change the test to simply check that `myThreadId` is present in the list. Assisted-by: Claude Opus 5 - - - - - 418e821b by Vladislav Zavialov at 2026-08-14T11:36:28-04:00 Fix tcLookupId panic with RequiredTypeArguments and PatternSynonyms (#27586) The arguments declared on the left-hand side of a pattern synonym are looked up as term variables bound by its right-hand side. Prior to this patch, that lookup panicked with RequiredTypeArguments: data T a where MkT :: forall a -> T a pattern P :: Int -> T Int pattern P x = MkT x On the RHS, `x` looks like a term argument, so the renamer binds it in the term namespace. Only during type checking does it turn out to be a type variable, so the lookup on the LHS finds an ATyVar rather than an ATcId. As the lookup was done with tcLookupId, it resulted in a panic. Now the arguments are looked up with tcLookupPatSynArg, which reports an illegal term-level use of `x`, just as an ordinary function definition `f (MkT x) = x` does. Test cases: T27586a T27586b T27586c Assisted-by: Claude Opus 5 - - - - - 55 changed files: - + changelog.d/T27586 - compiler/GHC/Tc/Errors/Ppr.hs - compiler/GHC/Tc/Errors/Types.hs - compiler/GHC/Tc/TyCl/PatSyn.hs - compiler/GHC/Types/Error/Codes.hs - libraries/base/tests/all.T - libraries/base/tests/listThreads1.hs - libraries/base/tests/listThreads1.stdout - rts/js/thread.js - testsuite/driver/perf_notes.py - testsuite/tests/bytecode/TLinkable/all.T - + testsuite/tests/concurrent/should_run/T16761.hs - + testsuite/tests/concurrent/should_run/T16761.stdout - testsuite/tests/concurrent/should_run/all.T - testsuite/tests/diagnostic-codes/codes.stdout - testsuite/tests/ffi/should_fail/all.T - + testsuite/tests/ffi/should_fail/ccfail006.hs - + testsuite/tests/ffi/should_fail/ccfail006.stderr - + testsuite/tests/ffi/should_fail/ccfail007.hs - + testsuite/tests/ffi/should_fail/ccfail007.stderr - + testsuite/tests/ffi/should_fail/ccfail008.hs - + testsuite/tests/ffi/should_fail/ccfail008.stderr - + testsuite/tests/ffi/should_fail/ccfail009.hs - + testsuite/tests/ffi/should_fail/ccfail009.stderr - testsuite/tests/rts/all.T - + testsuite/tests/th/AssocDefaultNotAssoc.hs - + testsuite/tests/th/AssocDefaultNotAssoc.stderr - + testsuite/tests/th/TH_InvalidTopDecl.hs - + testsuite/tests/th/TH_InvalidTopDecl.stderr - + testsuite/tests/th/TH_cvt_DefaultDataInstDecl.hs - + testsuite/tests/th/TH_cvt_DefaultDataInstDecl.stderr - + testsuite/tests/th/TH_cvt_GadtNoCons.hs - + testsuite/tests/th/TH_cvt_GadtNoCons.stderr - + testsuite/tests/th/TH_cvt_IllegalDeclaration.hs - + testsuite/tests/th/TH_cvt_IllegalDeclaration.stderr - + testsuite/tests/th/TH_cvt_IllegalSumAlt.hs - + testsuite/tests/th/TH_cvt_IllegalSumAlt.stderr - + testsuite/tests/th/TH_cvt_InvalidCCallImpent.hs - + testsuite/tests/th/TH_cvt_InvalidCCallImpent.stderr - + testsuite/tests/th/TH_cvt_InvalidTyFamInstLHS.hs - + testsuite/tests/th/TH_cvt_InvalidTyFamInstLHS.stderr - + testsuite/tests/th/TH_cvt_InvalidTypeInstanceHeader.hs - + testsuite/tests/th/TH_cvt_InvalidTypeInstanceHeader.stderr - + testsuite/tests/th/TH_cvt_RecGadtNoCons.hs - + testsuite/tests/th/TH_cvt_RecGadtNoCons.stderr - + testsuite/tests/th/TH_cvt_SumAltArityExceeded.hs - + testsuite/tests/th/TH_cvt_SumAltArityExceeded.stderr - testsuite/tests/th/all.T - + testsuite/tests/vdq-rta/should_fail/T27586a.hs - + testsuite/tests/vdq-rta/should_fail/T27586a.stderr - + testsuite/tests/vdq-rta/should_fail/T27586b.hs - + testsuite/tests/vdq-rta/should_fail/T27586b.stderr - + testsuite/tests/vdq-rta/should_fail/T27586c.hs - + testsuite/tests/vdq-rta/should_fail/T27586c.stderr - testsuite/tests/vdq-rta/should_fail/all.T The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/1acd10f4e72cbb40f8c81172aaf65f… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/1acd10f4e72cbb40f8c81172aaf65f… You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc][wip/romes/27514] 5 commits: Refactor GHC.Driver.Downsweep in preparation for parallel downsweep
by Rodrigo Mesquita (＠alt-romes) 14 Aug '26

14 Aug '26

Rodrigo Mesquita pushed to branch wip/romes/27514 at Glasgow Haskell Compiler / GHC Commits: 9d247a48 by Rodrigo Mesquita at 2026-08-14T16:12:49+01:00 Refactor GHC.Driver.Downsweep in preparation for parallel downsweep Pure refactor to improve the code to facilitate implementing parallel downsweep in the next commit. This commit puts a MakeEnv into the DownsweepEnv, gives the fields proper names and uses RecordWildcards to simplify, rather than passing around all diagnostic wrappers, driver-message-things and using 10s of positional fields. No behavior changes here! - - - - - 8d5b8c69 by Rodrigo Mesquita at 2026-08-14T16:15:18+01:00 Parallelize downsweep traversal Parallelize the downsweep pass s.t. processing and discovering the module graph can be done in parallel (parallelizing work like pre-processing CPP in modules) according to the -j<N> flag used. Using Cabal as an example with -j8, parallel downsweep was 2x faster (from 2s to 1s in downsweep time). The parallel downsweep is all implemented in the previous `dfsBuild` (now named `parDfsBuild`): - We launch a thread for every module we discover that needs to be expanded next, in the `coordinator` thread - Every launched worker thread blocks waiting for a semaphore token (`withAbstractSem`), to respect -j<N> - The main thread waits until both the worklist and pending list is cleared. STM is used crucially to guarantee e.g. we don't have race conditions between taking from the worklist and writing to the pending list while checking whether they are clear. Exceptions are bubbled up to the main thread, which is unblocked and re-throws the exception signaled in `exc_var`, mimicking the previous behavior of `dfsBuild`. See also Note [Parallel Downsweep] Fixes #27514 - - - - - d09148c1 by Rodrigo Mesquita at 2026-08-14T16:17:03+01:00 fixup: kill coordinator thread with MC.finally - - - - - 6ef52d70 by Rodrigo Mesquita at 2026-08-14T16:17:17+01:00 fixup: keep track of worker threads - - - - - dec07585 by Rodrigo Mesquita at 2026-08-14T16:17:17+01:00 fixup: move withLocalTmpFS inside on downsweep opened #27690 about the bug in runLoop - - - - - 8 changed files: - + changelog.d/parallel-downsweep - compiler/GHC/Driver/Downsweep.hs - compiler/GHC/Driver/MakeAction.hs - testsuite/tests/ghc-api/fixed-nodes/FixedNodes.hs - testsuite/tests/ghc-api/fixed-nodes/InterfaceModuleGraph.hs - testsuite/tests/ghc-api/fixed-nodes/ModuleGraphInvariants.hs - testsuite/tests/splice-imports/SI35.hs - utils/check-ppr/Main.hs Changes: ===================================== changelog.d/parallel-downsweep ===================================== @@ -0,0 +1,11 @@ +section: compiler +synopsis: Parallelize the downsweep/module-discovery pass +issues: #27514 +mrs: !16394 +description: { + Parallelize the downsweep pass s.t. processing and discovering the module + graph can be done in parallel (parallelizing work like pre-processing CPP + in modules) according to the -j<N> flag used. Using Cabal as an example + with -j8, parallel downsweep was 2x faster (from 2s to 1s in downsweep time). +} + ===================================== compiler/GHC/Driver/Downsweep.hs ===================================== @@ -14,6 +14,8 @@ module GHC.Driver.Downsweep , downsweepFromRootNodes , downsweepInteractiveImports , DownsweepMode(..) + , DownsweepM, DownsweepEnv(..) + , runDownsweepM -- * Summary functions , summariseModule , summariseFile @@ -62,7 +64,7 @@ import GHC.Data.OsPath ( OsPath, unsafeEncodeUtf ) import GHC.Data.StringBuffer import GHC.Data.Graph.Directed.Reachability -import GHC.Utils.Exception ( throwIO, SomeAsyncException ) +import GHC.Utils.Exception ( throwIO, SomeAsyncException, AsyncException (..) ) import GHC.Utils.Outputable import GHC.Utils.Panic import GHC.Utils.Misc @@ -112,8 +114,11 @@ import Control.Monad.Trans.Reader import qualified Data.Map.Strict as M import Control.Monad.Trans.Class import System.IO.Unsafe (unsafeInterleaveIO) -import Data.IORef import qualified Data.List.NonEmpty as NE +import Control.Concurrent +import Control.Concurrent.STM.TQueue +import Control.Concurrent.STM +import Control.Applicative {- Note [The ModuleGraph] @@ -176,8 +181,9 @@ incrementally constructing a ModuleGraph using the GHC API; See #27054). So `downsweep` takes a `Maybe ModuleGraph` as one of its arguments. Downsweep iteratively *expands* each so-called 'DownsweepNode' into a list of -its dependencies, and recursively traverses all reachable nodes in a -depth-first order using 'dfsBuild'. A 'DownsweepNode' is *expanded* by 'dsNodeExpand': +its dependencies, and recursively traverses all reachable nodes in a parallel +non-det-depth-first order using 'parDfsBuild'. A 'DownsweepNode' is *expanded* +by 'dsNodeExpand': dsNodeExpand :: DownsweepNode -> DownsweepM (NodeRes (ModuleGraphNode, [DownsweepNode])) @@ -256,38 +262,48 @@ downsweep :: HscEnv -- which case there can be repeats downsweep hsc_env diag_wrapper msg old_summaries maybe_base_graph excl_mods allow_dup_roots = do n_jobs <- mkWorkerLimit (hsc_dflags hsc_env) - summ_cache <- newIORef (mkModSummaryCache (zip old_summaries (repeat SummOld))) - imps_cache <- newIORef Map.empty - (root_errs, root_summaries) <- rootSummariesParallel n_jobs hsc_env diag_wrapper msg - (getRootSummary excl_mods summ_cache imps_cache) - let closure_errs = checkHomeUnitsClosed unit_env - unit_env = hsc_unit_env hsc_env - - all_errs = closure_errs ++ root_errs - - case all_errs of - [] -> do - (downsweep_errs, downsweep_nodes) <- - downsweepFromRootNodes hsc_env summ_cache imps_cache maybe_base_graph - excl_mods allow_dup_roots DownsweepUseCompile (map ModuleNodeCompile root_summaries) [] - - let (other_errs, unit_nodes) = partitionEithers $ - HUG.unitEnv_foldWithKey (\nodes uid hue -> nodes ++ unitModuleNodes downsweep_nodes uid hue) [] - (hsc_HUG hsc_env) - - let all_nodes = downsweep_nodes ++ unit_nodes - let all_errs = downsweep_errs ++ other_errs - - let logger = hsc_logger hsc_env - tmpfs = hsc_tmpfs hsc_env - -- if we have been passed -fno-code, we enable code generation - -- for dependencies of modules that have -XTemplateHaskell, - -- otherwise those modules will fail to compile. - -- See Note [-fno-code mode] #8025 - th_configured_nodes <- enableCodeGenForTH logger tmpfs unit_env all_nodes - - return (all_errs, th_configured_nodes) - _ -> return (all_errs, emptyMG) + summ_cache <- newMVar (mkModSummaryCache (zip old_summaries (repeat SummOld))) + imps_cache <- newMVar Map.empty + withMakeEnv n_jobs hsc_env diag_wrapper msg $ \make_env -> do + (root_errs, root_summaries) <- rootSummariesParallel n_jobs make_env (hsc_targets hsc_env) + (getRootSummary excl_mods summ_cache imps_cache) + let closure_errs = checkHomeUnitsClosed unit_env + unit_env = hsc_unit_env hsc_env + + all_errs = closure_errs ++ root_errs + + case all_errs of + [] -> do + let env = DownsweepEnv + { ds_hsc_env = hsc_env + , ds_summaries_cache = summ_cache + , ds_imports_cache = imps_cache + , ds_mode = DownsweepUseCompile + , ds_excl_mods = excl_mods + , ds_n_jobs = n_jobs + , ds_make_env = make_env + } + (downsweep_errs, downsweep_nodes) <- runDownsweepM env $ + downsweepFromRootNodes maybe_base_graph allow_dup_roots + (map ModuleNodeCompile root_summaries) [] + + let (other_errs, unit_nodes) = partitionEithers $ + HUG.unitEnv_foldWithKey (\nodes uid hue -> nodes ++ unitModuleNodes downsweep_nodes uid hue) [] + (hsc_HUG hsc_env) + + let all_nodes = downsweep_nodes ++ unit_nodes + let all_errs = downsweep_errs ++ other_errs + + let logger = hsc_logger hsc_env + tmpfs = hsc_tmpfs hsc_env + -- if we have been passed -fno-code, we enable code generation + -- for dependencies of modules that have -XTemplateHaskell, + -- otherwise those modules will fail to compile. + -- See Note [-fno-code mode] #8025 + th_configured_nodes <- enableCodeGenForTH logger tmpfs unit_env all_nodes + + return (all_errs, th_configured_nodes) + _ -> return (all_errs, emptyMG) where -- Dependencies arising on a unit (backpack and module linking deps) unitModuleNodes :: [ModuleGraphNode] -> UnitId -> HomeUnitEnv -> [Either (Messages DriverMessage) ModuleGraphNode] @@ -330,15 +346,28 @@ downsweep hsc_env diag_wrapper msg old_summaries maybe_base_graph excl_mods allo downsweepThunk :: HscEnv -> ModSummary -> IO ModuleGraph downsweepThunk hsc_env mod_summary = unsafeInterleaveIO $ do debugTraceMsg (hsc_logger hsc_env) 3 $ text "Computing Module Graph thunk..." - summs <- newIORef (mkModSummaryCache [(mod_summary,SummOld)]) - imps <- newIORef mempty - ~(errs, mg) <- downsweepFromRootNodes hsc_env summs imps Nothing [] True DownsweepUseFixed [ModuleNodeCompile mod_summary] [] - let dflags = hsc_dflags hsc_env - liftIO $ printOrThrowDiagnostics (hsc_logger hsc_env) - (initPrintConfig dflags) - (initDiagOpts dflags) - (GhcDriverMessage <$> unionManyMessages errs) - return (mkModuleGraph mg) + njobs <- mkWorkerLimit (hsc_dflags hsc_env) + summs <- newMVar (mkModSummaryCache [(mod_summary,SummOld)]) + imps <- newMVar mempty + withMakeEnv njobs hsc_env mkUnknownDiagnostic Nothing $ \make_env -> do + let env = DownsweepEnv + { ds_hsc_env = hsc_env + , ds_summaries_cache = summs + , ds_imports_cache = imps + , ds_mode = DownsweepUseFixed + , ds_excl_mods = [] + , ds_n_jobs = njobs + , ds_make_env = make_env + } + ~(errs, mg) <- runDownsweepM env $ + downsweepFromRootNodes Nothing True + [ModuleNodeCompile mod_summary] [] + let dflags = hsc_dflags hsc_env + liftIO $ printOrThrowDiagnostics (hsc_logger hsc_env) + (initPrintConfig dflags) + (initDiagOpts dflags) + (GhcDriverMessage <$> unionManyMessages errs) + return (mkModuleGraph mg) -- | Construct a module graph starting from the interactive context. -- Produces, a thunk, which when forced will perform the downsweep. @@ -362,13 +391,23 @@ downsweepInteractiveImports hsc_env ic = unsafeInterleaveIO $ do -- :load. Any home package modules need to already be in here. let cached_nodes = Map.fromList [ (mkNodeKey n, NSuccess n) | n <- mg_mss (hsc_mod_graph hsc_env) ] - summ_cache <- newIORef mempty - imps_cache <- newIORef mempty - let env = DownsweepEnv hsc_env DownsweepUseFixed{-or DownsweepUseCompile?-} summ_cache imps_cache [] - graph <- runDownsweepM env do - loopFromInteractive cached_nodes interactive_mn imps - let all_nodes = [s | NSuccess s <- M.elems graph ] - return $ mkModuleGraph all_nodes + n_jobs <- mkWorkerLimit (hsc_dflags hsc_env) + summ_cache <- newMVar mempty + imps_cache <- newMVar mempty + withMakeEnv n_jobs hsc_env mkUnknownDiagnostic Nothing $ \make_env -> do + let env = DownsweepEnv + { ds_hsc_env = hsc_env + , ds_mode = DownsweepUseFixed{-or DownsweepUseCompile?-} + , ds_summaries_cache = summ_cache + , ds_imports_cache = imps_cache + , ds_excl_mods = [] + , ds_n_jobs = n_jobs + , ds_make_env = make_env + } + graph <- runDownsweepM env do + loopFromInteractive cached_nodes interactive_mn imps + let all_nodes = [s | NSuccess s <- M.elems graph ] + return $ mkModuleGraph all_nodes -- | Create a module graph from a list of installed modules. -- This is used by the loader when we need to load modules but there @@ -396,26 +435,38 @@ downsweepInstalledModules hsc_env mods = do -- already know that we can find the modules we need to load. _ -> throwGhcException $ ProgramError $ showSDoc (hsc_dflags hsc_env) $ text "downsweepInstalledModules: Could not find installed module" <+> ppr i + njobs <- mkWorkerLimit (hsc_dflags hsc_env) nodes <- mapM process installed_mods - summs <- newIORef mempty - imps <- newIORef mempty - (errs, mg) <- downsweepFromRootNodes hsc_env summs imps Nothing [] True DownsweepUseFixed nodes external_uids + summs <- newMVar mempty + imps <- newMVar mempty + withMakeEnv njobs hsc_env mkUnknownDiagnostic Nothing $ \make_env -> do + let env = DownsweepEnv + { ds_hsc_env = hsc_env + , ds_summaries_cache = summs + , ds_imports_cache = imps + , ds_mode = DownsweepUseFixed + , ds_excl_mods = [] + , ds_n_jobs = njobs + , ds_make_env = make_env + } + (errs, mg) <- runDownsweepM env $ + downsweepFromRootNodes Nothing True nodes external_uids - -- Similarly here, we should really not get any errors, but print them out if we do. - let dflags = hsc_dflags hsc_env - liftIO $ printOrThrowDiagnostics (hsc_logger hsc_env) - (initPrintConfig dflags) - (initDiagOpts dflags) - (GhcDriverMessage <$> unionManyMessages errs) + -- Similarly here, we should really not get any errors, but print them out if we do. + let dflags = hsc_dflags hsc_env + liftIO $ printOrThrowDiagnostics (hsc_logger hsc_env) + (initPrintConfig dflags) + (initDiagOpts dflags) + (GhcDriverMessage <$> unionManyMessages errs) - return (mkModuleGraph mg) + return (mkModuleGraph mg) ----------------------------------------------------------------------------- -- * Orchestrator: downsweepFromRootNodes ----------------------------------------------------------------------------- -type ModSummaryCache = IORef ModSummaryCacheMap -type ImportsCache = IORef ImportsCacheMap +type ModSummaryCache = MVar ModSummaryCacheMap +type ImportsCache = MVar ImportsCacheMap -- | A cache from file paths to the already summarised modules. The same file -- can be used in multiple units so the map is actually also keyed by which @@ -450,30 +501,26 @@ data DownsweepMode = DownsweepUseCompile | DownsweepUseFixed -- 'UnitId's. -- This function will start at the given roots, and traverse downwards to find -- all the dependencies, all the way to the leaf units. -downsweepFromRootNodes :: HscEnv - -> ModSummaryCache - -> ImportsCache - -> Maybe ModuleGraph - -> [ModuleName] - -> Bool - -> DownsweepMode -- ^ Whether to create fixed or compile nodes for dependencies - -> [ModuleNodeInfo] -- ^ The starting ModuleNodeInfo - -> [UnitId] -- ^ The starting units - -> IO ([DriverMessages], [ModuleGraphNode]) -downsweepFromRootNodes hsc_env summ_cache imps_cache maybe_base_graph excl_mods allow_dup_roots mode root_nodes root_uids = do +downsweepFromRootNodes + :: Maybe ModuleGraph + -> Bool + -> [ModuleNodeInfo] -- ^ The starting ModuleNodeInfo + -> [UnitId] -- ^ The starting units + -> DownsweepM ([DriverMessages], [ModuleGraphNode]) +downsweepFromRootNodes maybe_base_graph allow_dup_roots root_nodes root_uids = + ReaderT $ \env@DownsweepEnv{..} -> do when (not allow_dup_roots) $ case root_duplicates of [] -> return () - (dup_root:_) -> multiRootsErr sec dup_root - modifyImpsCache imps_cache (`M.union` mkRootMap root_nodes) -- add root nodes to imports cache - let env = DownsweepEnv hsc_env mode summ_cache imps_cache excl_mods - deps' <- runDownsweepM env $ do + (dup_root:_) -> multiRootsErr (sec ds_hsc_env) dup_root + modifyImpsCache ds_imports_cache (`M.union` mkRootMap root_nodes) -- add root nodes to imports cache + deps' <- runDownsweepM env $ do let base_nodes = maybe M.empty moduleGraphNodeMap maybe_base_graph module_deps <- loopModuleNodeInfos base_nodes root_nodes - all_deps <- loopUnits module_deps (hscActiveUnitId hsc_env) root_uids - deps' <- loopInstantiations all_deps (getHomeUnitInstantiations hsc_env) + all_deps <- loopUnits module_deps (hscActiveUnitId ds_hsc_env) root_uids + deps' <- loopInstantiations all_deps (getHomeUnitInstantiations ds_hsc_env) return deps' - f_cache <- readIORef summ_cache + f_cache <- readMVar ds_summaries_cache let downsweep_errs = lefts (M.elems f_cache) downsweep_nodes = [ s | NSuccess s <- M.elems deps' ] @@ -501,7 +548,7 @@ downsweepFromRootNodes hsc_env summ_cache imps_cache maybe_base_graph excl_mods moduleGraphNodeMap graph = M.fromList [(mkNodeKey node, NSuccess node) | node <- mgModSummaries' graph] - sec = initSourceErrorContext (hsc_dflags hsc_env) + sec hsc_env = initSourceErrorContext (hsc_dflags hsc_env) -------------------------------------------------------------------------------- -- ** 'DownsweepM' @@ -509,11 +556,14 @@ downsweepFromRootNodes hsc_env summ_cache imps_cache maybe_base_graph excl_mods type DownsweepM a = ReaderT DownsweepEnv IO a data DownsweepEnv = DownsweepEnv { - downsweep_hsc_env :: HscEnv - , _downsweep_mode :: DownsweepMode - , _downsweep_summaries_cache :: ModSummaryCache - , downsweep_imports_cache :: ImportsCache - , _downsweep_excl_mods :: [ModuleName] + ds_hsc_env :: HscEnv + , ds_mode :: DownsweepMode + -- ^ Whether to create fixed or compile nodes for dependencies + , ds_summaries_cache :: ModSummaryCache + , ds_imports_cache :: ImportsCache + , ds_excl_mods :: [ModuleName] + , ds_n_jobs :: WorkerLimit + , ds_make_env :: MakeEnv } mkModSummaryCache :: [(ModSummary, SummProvenance)] -> ModSummaryCacheMap @@ -529,8 +579,8 @@ addModSummaryCache ms pr fe = upd_fe fe modifySummCache :: ModSummaryCache -> (ModSummaryCacheMap -> ModSummaryCacheMap) -> IO () modifyImpsCache :: ImportsCache -> (ImportsCacheMap -> ImportsCacheMap) -> IO () -modifySummCache r f = atomicModifyIORef' r (\c -> (f c, ())) -modifyImpsCache r f = atomicModifyIORef' r (\c -> (f c, ())) +modifySummCache v f = modifyMVar v (\c -> let !r = f c in pure (r, ())) +modifyImpsCache v f = modifyMVar v (\c -> let !r = f c in pure (r, ())) -- | A cache from a module import (in given home unit context, with a package -- qualifier, and the imported module name (with or without SOURCE)) to the @@ -553,7 +603,7 @@ loopModuleNodeInfos :: M.Map NodeKey (NodeRes ModuleGraphNode) -> [ModuleNodeInf loopUnits :: M.Map NodeKey (NodeRes ModuleGraphNode) -> UnitId -> [UnitId] -> DownsweepM (M.Map NodeKey (NodeRes ModuleGraphNode)) loopInstantiations :: M.Map NodeKey (NodeRes ModuleGraphNode) -> [(UnitId, InstantiatedUnit)] -> DownsweepM (M.Map NodeKey (NodeRes ModuleGraphNode)) loopFromInteractive :: M.Map NodeKey (NodeRes ModuleGraphNode) -> Module -> [InteractiveImport] -> DownsweepM (M.Map NodeKey (NodeRes ModuleGraphNode)) -loopDownsweepNodes base_map nodes = dfsBuild (Just base_map) nodes dsNodeInfoKey dsNodeExpand +loopDownsweepNodes base_map nodes = parDfsBuild (Just base_map) nodes dsNodeInfoKey dsNodeExpand loopModuleNodeInfos base_map = loopDownsweepNodes base_map . map DSMod loopUnits base_map homud = loopDownsweepNodes base_map . map (DSUnit homud) loopInstantiations base_map = loopDownsweepNodes base_map . map (uncurry DSInst) @@ -617,7 +667,7 @@ dsNodeExpand = \case expandModuleSummary :: ModSummary -> DownsweepM (NodeRes (ModuleGraphNode, [DownsweepNode])) expandModuleSummary ms = do -- Didn't work out what the imports mean yet, now do that. - hsc_env <- asks downsweep_hsc_env + hsc_env <- asks ds_hsc_env let home_uid = ms_unitid ms home_unit = ue_unitHomeUnit home_uid (hsc_unit_env hsc_env) (final_deps, todo) <- unzip <$> mapM (expandModImport home_uid home_unit) (calcDeps ms) @@ -652,7 +702,7 @@ expandModuleSummary ms = do -- Didn't work out what the imports mean yet, now do FoundHomeWithError (_uid, _e) -> return ( Nothing, [] ) -- the error @e@ is already stored in the summarisation cache, - -- (the IORef in DownsweepM) and will get reported at the end. + -- (the MVar in DownsweepM) and will get reported at the end. FoundHome s -> return -- MP: This assumes that we can only instantiate non home units, which is probably fair enough for now. ( Just $ mkModuleEdge lvl (NodeKey_Module (mnKey s)) @@ -673,7 +723,7 @@ expandModuleSummary ms = do -- Didn't work out what the imports mean yet, now do -- NB: If you ever reach a Fixed node, everything under that also must be fixed. expandFixedModuleNode :: ModNodeKeyWithUid -> ModLocation -> DownsweepM (NodeRes (ModuleGraphNode, [DownsweepNode])) expandFixedModuleNode key loc = do - hsc_env <- asks downsweep_hsc_env + hsc_env <- asks ds_hsc_env -- MP: TODO, we should just read the dependency info from the interface rather than either -- a. Loading the whole thing into the EPS (this might never nececssary and causes lots of things to be permanently loaded into memory) -- b. Loading the whole interface into a buffer before discarding it. (wasted allocation and deserialisation) @@ -732,7 +782,7 @@ expandUnitNode :: UnitId {-^ @node_uid@ -} -> UnitId {-^ Home unit from where @n expandUnitNode node_uid home_context_uid = do -- Set active unit so that looking loopUnit finds the correct -- -package flags in the unit state. - hsc_env <- asks downsweep_hsc_env + hsc_env <- asks ds_hsc_env let lcl_hsc_env = hscSetActiveUnitId home_context_uid hsc_env case unitDepends <$> lookupUnitId (hsc_units lcl_hsc_env) node_uid of Just us -> pure $ NSuccess ((UnitNode us node_uid), map (\u -> DSUnit{node_uid=u, home_context_uid{-inherit-}}) us) @@ -745,8 +795,8 @@ expandInstantiatedUnit iud home_uid = pure $ NSuccess expandInteractiveImports :: Module -> [InteractiveImport] -> DownsweepM (NodeRes (ModuleGraphNode, [DownsweepNode])) expandInteractiveImports imod imps = do - hsc_env <- asks downsweep_hsc_env - imps_cache <- asks downsweep_imports_cache + hsc_env <- asks ds_hsc_env + imps_cache <- asks ds_imports_cache let -- A simple edge to a module from the same home unit @@ -807,13 +857,13 @@ downsweepSummarise :: HomeUnit -> Maybe (StringBuffer, UTCTime) -> DownsweepM SummariseResult downsweepSummarise home_unit imp maybe_buf = do - DownsweepEnv hsc_env mode summaries_cache_ref imports_cache_ref excl_mods <- ask - liftIO $ case mode of + DownsweepEnv{..} <- ask + liftIO $ case ds_mode of DownsweepUseCompile -> - summariseModule hsc_env home_unit summaries_cache_ref imports_cache_ref - imp maybe_buf excl_mods + summariseModule ds_hsc_env home_unit ds_summaries_cache ds_imports_cache + imp maybe_buf ds_excl_mods DownsweepUseFixed -> - summariseModuleInterface hsc_env home_unit imports_cache_ref imp excl_mods + summariseModuleInterface ds_hsc_env home_unit ds_imports_cache imp ds_excl_mods multiRootsErr :: SourceErrorContext -> NE.NonEmpty ModuleNodeInfo -> IO () multiRootsErr sec (summ1 NE.:| summs) @@ -878,56 +928,15 @@ getRootSummary excl_mods summ_cache imports_cache hsc_env target rootLoc = mkGeneralSrcSpan (fsLit "<command line>") dflags = homeUnitEnv_dflags (ue_findHomeUnitEnv uid (hsc_unit_env hsc_env)) --- | Execute 'getRootSummary' for the 'Target's using the parallelism pipeline --- system. --- Create bundles of 'Target's wrapped in a 'MakeAction' that uses --- 'withAbstractSem' to wait for a free slot, limiting the number of --- concurrently computed summaries to the value of the @-j@ option or the slots --- allocated by the job server, if that is used. --- --- The 'MakeAction' returns 'Maybe', which is not handled as an error, because --- 'runLoop' only sets it to 'Nothing' when an exception was thrown, so the --- result won't be read anyway here. --- --- To emulate the current behavior, we funnel exceptions past the concurrency --- barrier and rethrow the first one afterwards. -rootSummariesParallel :: - WorkerLimit -> - HscEnv -> - (GhcMessage -> AnyGhcDiagnostic) -> - Maybe Messager -> - (HscEnv -> Target -> IO (Either DriverMessages ModSummary)) -> - IO ([DriverMessages], [ModSummary]) -rootSummariesParallel n_jobs hsc_env diag_wrapper msg get_summary = do - (actions, get_results) <- unzip <$> mapM action_and_result (zip [1..] bundles) - runPipelines n_jobs hsc_env diag_wrapper msg actions - (sequence . catMaybes <$> sequence get_results) >>= \case - Right results -> pure (partitionEithers (concat results)) - Left exc -> throwIO exc - where - bundles = mk_bundles targets - - mk_bundles = unfoldr \case - [] -> Nothing - ts -> Just (splitAt bundle_size ts) - - bundle_size = 20 - - targets = hsc_targets hsc_env - - action_and_result (log_queue_id, ts) = do - res_var <- liftIO newEmptyMVar - pure $! (MakeAction (action log_queue_id ts) res_var, readMVar res_var) - - action log_queue_id target_bundle = do - env@MakeEnv {compile_sem} <- ask - lift $ lift $ - withAbstractSem compile_sem $ - withLoggerHsc log_queue_id env \ lcl_hsc_env -> - MC.try (mapM (get_summary lcl_hsc_env) target_bundle) >>= \case - Left e | Just (_ :: SomeAsyncException) <- fromException e -> - throwIO e - a -> pure a +-- | Execute 'getRootSummary' for the 'Target's using the parallelism pipeline system. +rootSummariesParallel + :: WorkerLimit -> MakeEnv -> [Target] + -> (HscEnv -> Target -> IO (Either DriverMessages ModSummary)) + -> IO ([DriverMessages], [ModSummary]) +rootSummariesParallel n_jobs make_env targets get_summary = do + partitionEithers <$> mapConcDS n_jobs bundle_size make_env get_summary targets + where + bundle_size = 20 -------------------------------------------------------------------------------- -- * Check/validate properties and error out @@ -1325,7 +1334,7 @@ summariseFile -> IO (Either DriverMessages ModSummary) summariseFile hsc_env' home_unit summ_cache_ref src_fn mb_phase maybe_buf - = do file_summ_cache <- readIORef summ_cache_ref + = do file_summ_cache <- readMVar summ_cache_ref case M.lookup (homeUnitId home_unit, src_fn_os) file_summ_cache of Just (Right (chd_summary, SummFresh)) -> -- Fresh: use it straight away @@ -1505,7 +1514,7 @@ summariseModuleDispatch k hsc_env' imps_cache_ref home_unit imp excl_mods find_it :: IO SummariseResult find_it = do - imps_cache <- readIORef imps_cache_ref + imps_cache <- readMVar imps_cache_ref case M.lookup cache_key imps_cache of Just result -> return result Nothing -> do @@ -1547,7 +1556,7 @@ summariseModuleWithSource home_unit summ_cache_ref is_boot maybe_buf hsc_env loc -- Adjust location to point to the hs-boot source file, -- hi file, object file, when is_boot says so let src_fn = expectJust (ml_hs_file location) - summ_cache <- readIORef summ_cache_ref + summ_cache <- readMVar summ_cache_ref -- Reject the cache result if the module name doesn't match the inferred -- module name based on the file name. @@ -1722,10 +1731,10 @@ getPreprocessedImports hsc_env src_fn mb_phase maybe_buf = do return PreprocessedImports {..} -------------------------------------------------------------------------------- --- * Generic traversal of iteratively-built graph: dfsBuild +-- * Generic traversal of iteratively-built graph: parDfsBuild -------------------------------------------------------------------------------- --- | The result of expanding a node in 'dfsBuild'. +-- | The result of expanding a node in 'parDfsBuild'. data NodeRes v -- | Computed the node payload successfully = NSuccess v @@ -1738,7 +1747,7 @@ data NodeRes v -- abort. | NSkip --- | In a depth-first order, and starting from the given roots, traverse a +-- | In a parallel non-det-depth-first order, and starting from the given roots, traverse a -- graph by iteratively expanding a node into a payload and a list of children -- nodes to visit next. -- @@ -1751,18 +1760,17 @@ data NodeRes v -- The result is a mapping from the key of every node transitively reachable -- from the root nodes (inclusively) to the payload returned by expanding that -- node. The result includes the previously visited nodes given in @base_map@, --- s.t. @dfsBuild base_map [] _ _ == base_map@. +-- s.t. @parDfsBuild base_map [] _ _ == base_map@. -- -- The @expand@ function returns an 'NResult'. See the 'NResult' documentation -- for more information about each result type. -- --- Error handling and exiting early can be achieved by selecting a @Monad m@ --- accordingly, such as @Control.Monad.Except.Except@ --- -- Example usage: @n@ is instanced to @DownsweepNode@, @k@ is @NodeKey@, and @v@ is @ModuleNodeEdge@. -- --- See also Note [Downsweep Control Flow and Caching] -dfsBuild :: (Ord k, Monad m) +-- See Note [Parallel Downsweep] for more information about how parallelism is +-- achieved, and See Note [Downsweep Control Flow and Caching] for information +-- about the various caches used. +parDfsBuild :: forall k v n. Ord k => Maybe (Map.Map k (NodeRes v)) -- ^ Base map, existing results. We won't re-expand any of the nodes -- already present in this map. @@ -1770,34 +1778,102 @@ dfsBuild :: (Ord k, Monad m) -- ^ The root nodes from where to start traversal -> (n -> k) -- ^ Compute the key which uniquely identifies this node - -> (n -> m (NodeRes (v,[n]))) + -> (n -> DownsweepM (NodeRes (v,[n]))) -- ^ Expand this node into its payload result and into the list of -- children nodes to visit next. - -> m (Map.Map k (NodeRes v)) + -> DownsweepM (Map.Map k (NodeRes v)) -- ^ The result accumulates the payload of expanding the root nodes -- and all nodes transitively reachable from those roots. -dfsBuild base_map roots key expand = go roots (fromMaybe Map.empty base_map) +parDfsBuild base_map roots key expand = ReaderT $ \ds_env -> do + exc_var <- newTVarIO $ Nothing @MC.SomeException + visited_var <- newTVarIO $ fromMaybe Map.empty base_map + pending <- newTVarIO $ Set.empty @k + worklist <- newTQueueIO @n + threads <- newTVarIO [] + + coord_tid <- forkIO $ + coordinator ds_env exc_var visited_var worklist pending threads + `MC.catch` \case + (e::MC.SomeException) + -- exit cleanly when killed + | Just ThreadKilled <- fromException e -> return () + -- if the coordinator somehow else crashes, + -- signal the exc_var for the main thread to throw it + | otherwise -> atomically (modifyTVar' exc_var (<|> Just e)) + + atomically $ mapM_ (writeTQueue worklist) roots + + mb_exc <- wait_done exc_var worklist pending + `MC.finally` do + killThread coord_tid + mapM_ killThread =<< readTVarIO threads + + case mb_exc of + Just e -> throwIO e + Nothing -> readTVarIO visited_var + where - go [] visited = pure visited - go (s:ss) visited - | k `Map.member` visited - = go ss visited - | otherwise - = do r <- expand s - case r of - NSkip -> - go ss - (Map.insert k NSkip visited) -- Skip! - NSuccess (v,ns) -> - go (ns ++ ss) - (Map.insert k (NSuccess v) visited) - where - k = key s + wait_done exc_var worklist pending = + -- this txn retries until all work is done or an exception is signaled + atomically $ do + readTVar exc_var >>= \case + Just e -> return (Just e) + Nothing -> do + empty_worklist <- isEmptyTQueue worklist + empty_pending <- Set.null <$> readTVar pending + check (empty_worklist && empty_pending) + return Nothing + + coordinator ds_env exc_var visvar worklist pendvar threads = forever $ do + mb_node_to_expand <- atomically $ do + node <- readTQueue worklist + let k = key node + + visited <- readTVar visvar + pending <- readTVar pendvar + + if (k `Set.member` pending || k `Map.member` visited) + then return Nothing + else do + -- must add to pending in the same transaction as worklist dequeue, + -- otherwise the main thread may find both the worklist and pending + -- lists empty and exit prematurely. + modifyTVar' pendvar (Set.insert k) + return (Just (k, node)) + + case mb_node_to_expand of + Nothing -> return () + Just (k, node) -> do + tid <- MC.mask_ $ forkIOWithUnmask $ \unmask -> + unmask (withLocalTmpFSMake (ds_make_env ds_env) $ \make_env -> + worker ds_env{ds_make_env = make_env} visvar worklist pendvar k node) + `MC.catch` \case + e | Just (_ :: SomeAsyncException) <- fromException e + -> throwIO e -- async exceptions like KillThread get thrown + | otherwise -- exceptions in workers are written for main thread + -> atomically (modifyTVar' exc_var (<|> Just e)) + + atomically $ modifyTVar' threads (tid:) + + worker ds_env@DownsweepEnv{..} visvar worklist pendvar k node = + withAbstractSem (compile_sem ds_make_env) $ do + r <- runDownsweepM ds_env $ + expand node -- do the main work! + + atomically $ do + case r of + NSkip -> + modifyTVar' visvar (Map.insert k NSkip) + NSuccess (v,ns) -> do + modifyTVar' visvar (Map.insert k (NSuccess v)) + mapM_ (writeTQueue worklist) ns + + modifyTVar' pendvar (Set.delete k) {- Note [Downsweep Control Flow and Caching] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -The control flow of downsweep is extracted into a single function `dfsBuild`, +The control flow of downsweep is extracted into a single function `parDfsBuild`, which takes care of iteratively expanding and traversing all nodes of the in-construction module graph necessary to build a full `ModuleGraph` at the end. @@ -1806,7 +1882,7 @@ There are three levels of caching going on, all of which are necessary to make sure we don't do repeated work (notably, we NEVER summarise the same module twice). -1. `dfsBuild` accumulates the final module graph and never revisits the +1. `parDfsBuild` accumulates the final module graph and never revisits the same node of the module graph. Cache is keyed by the final `ModuleGraph`s `NodeKey`s. @@ -1874,6 +1950,83 @@ twice). See tests T27461a and T27461b. -See also Note [Downsweep: building and maintaining the module graph] and -Note [The ModuleGraph]. +See also Note [Downsweep: building and maintaining the module graph] and Note [The ModuleGraph]. + + +Note [Parallel Downsweep] +~~~~~~~~~~~~~~~~~~~~~~~~~ +Downsweep traverses the modules iteratively to discover the module graph +structure (see Note [Downsweep: building and maintaining the module graph]) + +Each module has to be expanded/processed to discover dependencies amongst other +things, and that processing can often be costly (e.g. see `expandModuleSummary`). + +We leverage multiple threads in this traversal to expand more than one module +at once, respecting -j<N> to mean we never expand more than N modules at once. +The parallel downsweep is all handled by `parDfsBuild` as follows: + +- We launch a thread for every module we discover that needs to be + expanded in the `coordinator` thread, popping it from the worklist +- Every launched `worker` thread blocks waiting for a semaphore token + (`withAbstractSem`) to respect -j<N> +- The main thread waits until both the worklist and pending list is + cleared, atomically. + +STM is used crucially to guarantee e.g. we don't have race conditions +between taking from the worklist and writing to the pending list while +checking whether they are clear. + +Exceptions are bubbled up to the main thread. The "main" thread, which is +typically waiting for the worklist+pending lists to be clear, instead gets +unblocked by this exception (signaled in `exc_var`) and re-throws it. -} + +-------------------------------------------------------------------------------- +-- * Concurrent utilities +-------------------------------------------------------------------------------- + +-- | Map an action over a list using the parallelism pipeline system. +-- Create bundles of the list elems wrapped in a 'MakeAction' that uses +-- 'withAbstractSem' to wait for a free slot, limiting the number of +-- concurrently computed summaries to the value of the @-j@ option or the slots +-- allocated by the job server, if that is used. +-- +-- The 'MakeAction' returns 'Maybe', which is not handled as an error, because +-- 'runLoop' only sets it to 'Nothing' when an exception was thrown, so the +-- result won't be read anyway here. +-- +-- To emulate the current behavior, we funnel exceptions past the concurrency +-- barrier and rethrow the first one afterwards. +mapConcDS :: + WorkerLimit -> + Int {-^ Batch size -} -> + MakeEnv -> + (HscEnv -> a -> IO b) -> + [a] -> + IO ([b]) +mapConcDS n_jobs bundle_size make_env run_action xs = do + (actions, get_results) <- unzip <$> mapM action_and_result (zip [1..] bundles) + runAllPipelines n_jobs make_env actions + (sequence . catMaybes <$> sequence get_results) >>= \case + Right results -> pure (concat results) + Left exc -> throwIO exc + where + bundles = mk_bundles xs + + mk_bundles = unfoldr \case + [] -> Nothing + ts -> Just (splitAt bundle_size ts) + + action_and_result (log_queue_id, ts) = do + res_var <- liftIO newEmptyMVar + pure $! (MakeAction (action log_queue_id ts) res_var, readMVar res_var) + + action log_queue_id target_bundle = do + env@MakeEnv {compile_sem} <- ask + lift $ lift $ + withAbstractSem compile_sem $ + withLoggerHsc log_queue_id env \ lcl_hsc_env -> + MC.try (mapM (run_action lcl_hsc_env) target_bundle) >>= \case + Left e | Just (_ :: SomeAsyncException) <- fromException e -> + throwIO e + a -> pure a ===================================== compiler/GHC/Driver/MakeAction.hs ===================================== @@ -185,7 +185,8 @@ runLoop fork_thread env (MakeAction act res_var :acts) = do -- withLocalTmpFs has to occur outside of fork to remain deterministic new_thread <- withLocalTmpFSMake env $ \lcl_env -> - fork_thread $ \unmask -> (do + MC.mask_ $ + fork_thread $ \unmask -> (do mres <- (unmask $ run_pipeline lcl_env act) `MC.onException` (putMVar res_var Nothing) -- Defensive: If there's an unhandled exception then still signal the failure. putMVar res_var mres) ===================================== testsuite/tests/ghc-api/fixed-nodes/FixedNodes.hs ===================================== @@ -24,7 +24,7 @@ import Control.Monad.Catch (handle, throwM) import Control.Exception.Context import GHC.Driver.MakeFile import GHC.Utils.Outputable -import Data.IORef (newIORef) +import Control.Concurrent.MVar -- | Convert a ModuleNodeCompile to a ModuleNodeFixed convertToFixed :: ModuleNodeInfo -> ModuleNodeInfo convertToFixed (ModuleNodeCompile ms) = @@ -152,6 +152,6 @@ main = do getModSummaryFromTarget :: FilePath -> Ghc ModSummary getModSummaryFromTarget file = do hsc_env <- getSession - summ_cache <- liftIO $ newIORef mempty + summ_cache <- liftIO $ newMVar mempty Right ms <- liftIO $ summariseFile hsc_env (DefiniteHomeUnit mainUnitId Nothing) summ_cache file Nothing Nothing return ms ===================================== testsuite/tests/ghc-api/fixed-nodes/InterfaceModuleGraph.hs ===================================== @@ -6,6 +6,7 @@ import GHC.Driver.Session import GHC.Driver.Monad import GHC.Driver.Env import GHC.Driver.Make (summariseFile) +import GHC.Driver.MakeAction import GHC.Driver.Downsweep import GHC.Unit.Module.Graph import GHC.Unit.Module.ModSummary @@ -16,12 +17,13 @@ import GHC.Types.SourceFile import System.Environment import Control.Monad (void, when) import Data.Maybe (fromJust) -import Data.IORef (newIORef) +import Control.Concurrent.MVar import Control.Exception (ExceptionWithContext(..), SomeException) import Control.Monad.Catch (handle, throwM) import Control.Exception.Context import GHC.Utils.Outputable import Data.List +import GHC.Types.Error import GHC.Unit.Env import GHC.Unit.State import GHC.Tc.Utils.Monad @@ -60,7 +62,7 @@ main = do hsc_env <- getSession setSession $ hsc_env { hsc_dflags = (hsc_dflags hsc_env) { ghcMode = OneShot } } hsc_env <- getSession - + n_jobs <- liftIO $ mkWorkerLimit (hsc_dflags hsc_env) -- Create ModNodeKeys with unit IDs let keyA = msKey msA @@ -68,10 +70,21 @@ main = do keyC = msKey msC let mkGraph s = do - summ_cache <- newIORef mempty - imps_cache <- newIORef mempty - ([], nodes) <- downsweepFromRootNodes hsc_env summ_cache imps_cache Nothing [] True DownsweepUseFixed s [] - return $ mkModuleGraph nodes + summ_cache <- newMVar mempty + imps_cache <- newMVar mempty + withMakeEnv n_jobs hsc_env mkUnknownDiagnostic Nothing $ \make_env -> do + let env = DownsweepEnv + { ds_hsc_env = hsc_env + , ds_summaries_cache = summ_cache + , ds_imports_cache = imps_cache + , ds_mode = DownsweepUseFixed + , ds_excl_mods = [] + , ds_n_jobs = n_jobs + , ds_make_env = make_env + } + ([], nodes) <- runDownsweepM env $ + downsweepFromRootNodes Nothing True s [] + return $ mkModuleGraph nodes graph <- liftIO $ mkGraph [ModuleNodeCompile msC] @@ -101,6 +114,6 @@ main = do getModSummaryFromTarget :: FilePath -> Ghc ModSummary getModSummaryFromTarget file = do hsc_env <- getSession - summ_cache <- liftIO $ newIORef mempty + summ_cache <- liftIO $ newMVar mempty Right ms <- liftIO $ summariseFile hsc_env (DefiniteHomeUnit mainUnitId Nothing) summ_cache file Nothing Nothing return ms ===================================== testsuite/tests/ghc-api/fixed-nodes/ModuleGraphInvariants.hs ===================================== @@ -23,7 +23,7 @@ import Control.Monad.Catch (handle, throwM) import Control.Exception.Context import GHC.Utils.Outputable import Data.List -import Data.IORef (newIORef) +import Control.Concurrent.MVar -- | Convert a ModuleNodeCompile to a ModuleNodeFixed convertToFixed :: ModuleNodeInfo -> ModuleNodeInfo @@ -133,6 +133,6 @@ main = do getModSummaryFromTarget :: FilePath -> Ghc ModSummary getModSummaryFromTarget file = do hsc_env <- getSession - summ_cache <- liftIO $ newIORef mempty + summ_cache <- liftIO $ newMVar mempty Right ms <- liftIO $ summariseFile hsc_env (DefiniteHomeUnit mainUnitId Nothing) summ_cache file Nothing Nothing return ms ===================================== testsuite/tests/splice-imports/SI35.hs ===================================== @@ -28,7 +28,7 @@ import GHC.Unit.Module.Stage import GHC.Data.Graph.Directed.Reachability import GHC.Utils.Trace import GHC.Unit.Module.Graph -import Data.IORef (newIORef) +import Control.Concurrent.MVar main :: IO () main = do @@ -76,6 +76,6 @@ main = do getModSummaryFromTarget :: FilePath -> Ghc ModSummary getModSummaryFromTarget file = do hsc_env <- getSession - summ_cache <- liftIO $ newIORef mempty + summ_cache <- liftIO $ newMVar mempty Right ms <- liftIO $ summariseFile hsc_env (DefiniteHomeUnit mainUnitId Nothing) summ_cache file Nothing Nothing - return ms \ No newline at end of file + return ms ===================================== utils/check-ppr/Main.hs ===================================== @@ -18,7 +18,7 @@ import System.Environment( getArgs ) import System.Exit import System.FilePath import System.IO -import Data.IORef +import Control.Concurrent.MVar usage :: String usage = unlines @@ -86,7 +86,7 @@ parseOneFile libdir fileName = do let dflags2 = dflags `gopt_set` Opt_KeepRawTokenStream _ <- setSessionDynFlags dflags2 hsc_env <- getSession - cache <- liftIO $ newIORef mempty + cache <- liftIO $ newMVar mempty mms <- liftIO $ summariseFile hsc_env (hsc_home_unit hsc_env) cache fileName Nothing Nothing case mms of Left _err -> error "parseOneFile" View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/abbdbdf9b82c3d8de76bfe72603095… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/abbdbdf9b82c3d8de76bfe72603095… You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc][wip/T27627] Wibbles
by Simon Peyton Jones (＠simonpj) 14 Aug '26

14 Aug '26

Simon Peyton Jones pushed to branch wip/T27627 at Glasgow Haskell Compiler / GHC Commits: b15dcda8 by Simon Peyton Jones at 2026-08-14T16:13:07+01:00 Wibbles - - - - - 1 changed file: - compiler/GHC/Core.hs Changes: ===================================== compiler/GHC/Core.hs ===================================== @@ -647,7 +647,8 @@ Note [NON-BOTTOM-DICTS invariant] It is a global invariant (not checkable by Lint) that Every dictionary-typed expression is non-bottom - /except/: a unary class with a single method (see (NBD1)) + /except/: a unary class with a single field, either a single method, + or a single superclass: see (NBD1). These conditions are captured by GHC.Core.Type.isTerminatingType. @@ -692,8 +693,13 @@ Wrinkle (NBD1) A unary class has a single /superclass/ (rather than method) looks as if it will always terminate, because the superclass does: class C a => UC a where {} - But Note [Recursive superclasses] and Note [Solving superclass constraints] - are very subtle, so it seems safer to say that /all/ unary might diverge. + So we could try to be more clever, and say that a unary class constraint + always terminates if has a single superclass. + + But maybe that is too clever! Note [Recursive superclasses] and + Note [Solving superclass constraints] are very subtle, so it seems safer to + say that /all/ unary-class constraints might diverge. Remember, almost all + classes are non-unary, and thus definitely non-bottom. Note [Case expression invariants] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/b15dcda84b0280c1474d998a1fe564b… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/b15dcda84b0280c1474d998a1fe564b… You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc][wip/romes/27514] 4 commits: fixup: check
by Rodrigo Mesquita (＠alt-romes) 14 Aug '26

14 Aug '26

Rodrigo Mesquita pushed to branch wip/romes/27514 at Glasgow Haskell Compiler / GHC Commits: 649d5c2a by Rodrigo Mesquita at 2026-08-14T14:45:21+01:00 fixup: check - - - - - 6d662572 by Rodrigo Mesquita at 2026-08-14T15:06:04+01:00 fixup: type anns - - - - - 9cda9bf3 by Rodrigo Mesquita at 2026-08-14T16:02:28+01:00 fixup: fix test build - - - - - abbdbdf9 by Rodrigo Mesquita at 2026-08-14T16:02:28+01:00 fixup: move withLocalTmpFS inside on downsweep opened #27690 about the bug in runLoop - - - - - 2 changed files: - compiler/GHC/Driver/Downsweep.hs - testsuite/tests/ghc-api/fixed-nodes/InterfaceModuleGraph.hs Changes: ===================================== compiler/GHC/Driver/Downsweep.hs ===================================== @@ -14,6 +14,8 @@ module GHC.Driver.Downsweep , downsweepFromRootNodes , downsweepInteractiveImports , DownsweepMode(..) + , DownsweepM, DownsweepEnv(..) + , runDownsweepM -- * Summary functions , summariseModule , summariseFile @@ -1768,7 +1770,7 @@ data NodeRes v -- See Note [Parallel Downsweep] for more information about how parallelism is -- achieved, and See Note [Downsweep Control Flow and Caching] for information -- about the various caches used. -parDfsBuild :: Ord k +parDfsBuild :: forall k v n. Ord k => Maybe (Map.Map k (NodeRes v)) -- ^ Base map, existing results. We won't re-expand any of the nodes -- already present in this map. @@ -1783,10 +1785,10 @@ parDfsBuild :: Ord k -- ^ The result accumulates the payload of expanding the root nodes -- and all nodes transitively reachable from those roots. parDfsBuild base_map roots key expand = ReaderT $ \ds_env -> do - exc_var <- newTVarIO Nothing -- signal this var when there's an exception - visited_var <- newTVarIO (fromMaybe Map.empty base_map) - pending <- newTVarIO Set.empty - worklist <- newTQueueIO + exc_var <- newTVarIO $ Nothing @MC.SomeException + visited_var <- newTVarIO $ fromMaybe Map.empty base_map + pending <- newTVarIO $ Set.empty @k + worklist <- newTQueueIO @n threads <- newTVarIO [] coord_tid <- forkIO $ @@ -1819,7 +1821,7 @@ parDfsBuild base_map roots key expand = ReaderT $ \ds_env -> do Nothing -> do empty_worklist <- isEmptyTQueue worklist empty_pending <- Set.null <$> readTVar pending - unless (empty_worklist && empty_pending) retry + check (empty_worklist && empty_pending) return Nothing coordinator ds_env exc_var visvar worklist pendvar threads = forever $ do @@ -1842,9 +1844,9 @@ parDfsBuild base_map roots key expand = ReaderT $ \ds_env -> do case mb_node_to_expand of Nothing -> return () Just (k, node) -> do - tid <- withLocalTmpFSMake (ds_make_env ds_env) $ \make_env -> - MC.mask_ $ forkIOWithUnmask $ \unmask -> - unmask (worker ds_env{ds_make_env = make_env} visvar worklist pendvar k node) + tid <- MC.mask_ $ forkIOWithUnmask $ \unmask -> + unmask (withLocalTmpFSMake (ds_make_env ds_env) $ \make_env -> + worker ds_env{ds_make_env = make_env} visvar worklist pendvar k node) `MC.catch` \case e | Just (_ :: SomeAsyncException) <- fromException e -> throwIO e -- async exceptions like KillThread get thrown ===================================== testsuite/tests/ghc-api/fixed-nodes/InterfaceModuleGraph.hs ===================================== @@ -6,6 +6,7 @@ import GHC.Driver.Session import GHC.Driver.Monad import GHC.Driver.Env import GHC.Driver.Make (summariseFile) +import GHC.Driver.MakeAction import GHC.Driver.Downsweep import GHC.Unit.Module.Graph import GHC.Unit.Module.ModSummary @@ -22,6 +23,7 @@ import Control.Monad.Catch (handle, throwM) import Control.Exception.Context import GHC.Utils.Outputable import Data.List +import GHC.Types.Error import GHC.Unit.Env import GHC.Unit.State import GHC.Tc.Utils.Monad @@ -60,7 +62,7 @@ main = do hsc_env <- getSession setSession $ hsc_env { hsc_dflags = (hsc_dflags hsc_env) { ghcMode = OneShot } } hsc_env <- getSession - + n_jobs <- liftIO $ mkWorkerLimit (hsc_dflags hsc_env) -- Create ModNodeKeys with unit IDs let keyA = msKey msA @@ -70,8 +72,19 @@ main = do let mkGraph s = do summ_cache <- newMVar mempty imps_cache <- newMVar mempty - ([], nodes) <- downsweepFromRootNodes hsc_env summ_cache imps_cache Nothing [] True DownsweepUseFixed s [] - return $ mkModuleGraph nodes + withMakeEnv n_jobs hsc_env mkUnknownDiagnostic Nothing $ \make_env -> do + let env = DownsweepEnv + { ds_hsc_env = hsc_env + , ds_summaries_cache = summ_cache + , ds_imports_cache = imps_cache + , ds_mode = DownsweepUseFixed + , ds_excl_mods = [] + , ds_n_jobs = n_jobs + , ds_make_env = make_env + } + ([], nodes) <- runDownsweepM env $ + downsweepFromRootNodes Nothing True s [] + return $ mkModuleGraph nodes graph <- liftIO $ mkGraph [ModuleNodeCompile msC] View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b8695cd339a884c8aaf7d3e5cfe628… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b8695cd339a884c8aaf7d3e5cfe628… You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc][wip/jeltsch/textual-bytecode-output] 15 commits: hie.yaml: use a polyglot shell/batch script
by Wolfgang Jeltsch (＠jeltsch) 14 Aug '26

14 Aug '26

Wolfgang Jeltsch pushed to branch wip/jeltsch/textual-bytecode-output at Glasgow Haskell Compiler / GHC Commits: 9df24b7e by sheaf at 2026-08-10T14:28:30-04:00 hie.yaml: use a polyglot shell/batch script This commit merges hie-bios and hie-bios.bat into a single polyglot script. This avoids Windows users having to manually update hie.yaml in order to be able to use HLS. - - - - - 7f75c588 by Alan Zimmerman at 2026-08-10T14:29:11-04:00 EPA: Remove type parameter from AnnList This is a step towards cutting AnnList down to its core for formatting lists only - - - - - e8d1a0d6 by Bernhard M. Wiedemann at 2026-08-10T21:31:23-04:00 driver: Link object files in a deterministic order The object files handed to the linker come from the HomePackageTable, which is ordered by the order in which modules finished compiling. With -j1 that is the build plan order, with -jN it is whatever the scheduler produced, so the same sources can link to different (but equivalent) binaries. The order reaches the output: .text and .rodata contributions are concatenated in link order, so e.g. building the hdav executable of the DAV package twice, once with -j1 and once with -j4, yields two binaries that differ in ~100kB of section contents. Sort the home modules by module before collecting their linkables, guarded under `Opt_ObjectDeterminism` . Fixes #27612 Signed-off-by: Bernhard M. Wiedemann <bwiedemann(a)suse.de> - - - - - 556db2f3 by sheaf at 2026-08-10T21:32:06-04:00 Reduce SpecConstr threshold in GHC.Tc.Solver.Rewrite As remarked in #27628, this module currently sits on a knife's edge: if the body of 'simplifyArgsWorker' is made even a tiny bit smaller, then SpecConstr suddenly kicks in and causes disastrous reboxing of the LiftingContext argument. To make this less likely to happen, this commit lowers the SpecConstr threshold. - - - - - c77d88fc by sheaf at 2026-08-13T10:15:22-04:00 Allow rewriting in RuntimeReps for newtype ConPats This commit implements PHASE 2 of the FixedRuntimeRep plan described in Note [The Concrete mechanism] in GHC.Tc.Utils.Concrete for newtype constructor patterns. In short, GHC now accepts programs of the form f (MkN x) = ... in which the argument 'x' of the newtype constructor pattern 'MkN x' has a representation that is not syntactically concrete, e.g. it can be 'Id IntRep' reducing to 'IntRep'. See T20363{,b,c} for examples. There are two main parts to the implementation: 1. Typechecking, in GHC.Tc.Gen.Pat.tcDataConPat. See Note [Typechecking newtype constructor patterns] in GHC.Tc.Gen.Pat. 2. Desugaring. We restructure the code for desugaring pattern matches by allowing the scrutinised match variable to be casted. This allows us to accumulate coercions and avoids creating binders at intermediate types tha don't have a fixed RuntimeRep. See the revamped Note [Match Ids] in GHC.HsToCore.Monad. Fixes #20363 ------------------------- Metric Increase: InstanceMatching ------------------------- - - - - - 6ba9dd41 by Wolfgang Jeltsch at 2026-08-13T10:16:07-04:00 Improve the documentation of `--show-iface` This change in particular gets rid of the claim that `--show-iface` writes *the* contents of the interface file in question. It doesn’t do that; it only writes those parts that are likely of interest to a human reader. - - - - - 4bd193fa by Sylvain Henry at 2026-08-13T10:17:00-04:00 RTS: fix LDV profiler's slop skipping (#27585) processHeapForDead was the one heap scanner not updated for the slop marker encoding introduced in #19048. It still assumed slop is zeroed: while (p < bd->free && !*p) p++; // skip slop so it stopped at the (StgWord)(-1) sentinel and passed it to processHeapClosureForDead. IS_FORWARDING_PTR(-1) holds, hence a garbage size was read out of LDVW and the scan ran off the block, tripping ASSERT(p == bd->free) on a debug RTS and silently corrupting the census otherwise. The loop was hand-copied in four places, so factor it out into skipSlop in ClosureMacros.h and use it in ProfHeap.c, Sanity.c, Printer.c and LdvProfile.c. Co-Authored-By: Claude Opus 5 (1M context) <noreply(a)anthropic.com> - - - - - 1446bb03 by Zubin Duggal at 2026-08-13T10:17:48-04:00 hadrian: Fix links to remaining doc sites to not use the package hash for haddock links In 07267f79d91169f474cacc8bcd38d76a6e97887d we changed hadrian to not include the package hash in the haddock directory. This patch takes care of a few remaining links that were missed in that patch Fixes #27671 - - - - - 257c3ed7 by Simon Jakobi at 2026-08-13T10:18:29-04:00 Testsuite: widen InstanceMatching acceptance window to 5% (#27673) ...in order to unblock CI. Assisted-by: Claude Fable 5 - - - - - e4cfaaa0 by Simon Peyton Jones at 2026-08-14T01:09:32+02:00 Major patch to re-engineer known-key names This big patch implements the New Plan for known-key names, described in #27013. Read the big Note [Overview of known-key names] in GHC.Types.Name Some things had to be reworked slightly to accomodate the new known-keys design. A significant one was the generation of auxiliary KindRep bindings, which was greatly simplified. Note [Grand plan for Typeable] was updated accordingly. Another example: GHC.Internal.CString was merged into GHC.Internal.Types. Co-authored-by: Rodrigo Mesquita <rodrigo.m.mesquita(a)gmail.com> The couple hundreds of hours spent here by Rodrigo were sponsored by Well-Typed Metrics: compile_time/bytes allocated ------------------------------------- Baseline Test Metric value New value Change ------------------------------------------------------------------------------------------ MultiComponentModules100(normal) ghc/alloc 24,312,779,672 24,990,470,432 +2.8% BAD MultiComponentModulesRecomp(normal) ghc/alloc 601,924,960 621,884,888 +3.3% BAD MultiComponentModulesRecomp100(normal) ghc/alloc 11,884,065,432 12,531,373,704 +5.4% BAD MultiLayerModules(normal) ghc/alloc 3,861,537,072 3,706,919,512 -4.0% GOOD T13701(normal) ghc/alloc 3,517,246,392 3,237,179,616 -8.0% GOOD T13820(normal) ghc/alloc 28,961,056 29,663,208 +2.4% BAD T14697(normal) ghc/alloc 472,044,184 443,550,048 -6.0% GOOD T18140(normal) ghc/alloc 47,905,664 49,115,808 +2.5% BAD T4801(normal) ghc/alloc 269,339,096 263,432,040 -2.2% GOOD T783(normal) ghc/alloc 341,112,672 333,339,952 -2.3% GOOD hard_hole_fits(normal) ghc/alloc 222,164,728 213,433,808 -3.9% GOOD mhu-perf(normal) ghc/alloc 49,011,440 46,706,280 -4.7% GOOD geo. mean +0.1% minimum -8.0% maximum +5.4% All performance regressions were investigated in depth. The surviving ones: - MultiComponentModules100, MultiComponentModulesRecomp100, MultiComponentModulesRecomp regresses because existing bugs that make an additional implicit edge do too much redundant work: #27053 and #27461 - T13820, T18140, T10547, T13035 regress because we load an additional interface and associated Names for GHC.Essentials. ------------------------- Metric Decrease: MultiLayerModules T13379 T13701 T14697 T26989 T4801 T783 T9961 hard_hole_fits mhu-perf size_hello_artifact size_hello_obj size_hello_unicode Metric Increase: LinkableUsage01 LinkableUsage02 MultiComponentModules100 MultiComponentModulesRecomp MultiComponentModulesRecomp100 T10547 T13035 T13820 T18140 T18698a T18698b T20049 ------------------------- Bumps submodule binary Closes #27013 - - - - - 61665e79 by sheaf at 2026-08-14T01:09:33+02:00 Allow GHC.Essentials to be hidden This commit overhauls several aspects of the known entity handling, in order to allow GHC.Essentials to be hidden without a proliferation of special cases in the compiler. The main contribution is to introduce the 'UnresolvedImport' datatype which cleans up a lot of ad-hoc handling relating to 'ModSummary', fixing #27603. This allows us to reduce duplication, e.g. by having Backpack reuse 'mkUnresolvedImports' instead of replicating the "add implicit imports" logic. It also makes it easier to avoid undesirable edge cases (such as making sure that the Template Haskell 'reifyModule' function does not leak the implicit GHC.Essentials import). In particular, the infamous 'findImportedModuleWithIsBoot' is now simply 'resolveImport', taking a single 'UnresolvedImport' and resolving it to a 'FindResult' (usually a 'Module'). Other changes: - Cache the result of looking up GHC.Essentials (in TcM and DsM environments) to avoid redundant work. This reduces allocations on LinkableUsage01 and hard_hole_fits. - Properly look up known entities for StaticPointers like we do for other known entities everywhere else. This allows e.g. modules in ghc-internal to use -XStaticPointers. - When using multiple home units, we are now careful to handle the situation in which we may have multiple GHC.Essentials modules around. See the new tests under 'driver/multipleHomeUnits'. - - - - - b19fcc1c by Vladislav Zavialov at 2026-08-14T06:26:11-04:00 Increase test coverage of diagnostics, batch 2 Add test cases for the previously untested diagnostics: [GHC-26133] TcRnForeignImportPrimSafeAnn [GHC-68444] SumAltArityExceeded [GHC-63966] IllegalSumAlt [GHC-23882] IllegalDeclaration [GHC-60220] InvalidCCallImpent [GHC-18816] RecGadtNoCons [GHC-38140] GadtNoCons [GHC-37056] InvalidTypeInstanceHeader [GHC-78486] InvalidTyFamInstLHS [GHC-39639] DefaultDataInstDecl [GHC-78822] AssocDefaultNotAssoc [GHC-43510] NotSimpleUnliftedType [GHC-41843] IOResultExpected [GHC-07641] AtLeastOneArgExpected [GHC-52886] InvalidTopDecl Remove unused error constructors: [GHC-92057] ImportLookupAmbiguous - - - - - 7b27f25a by Simon Jakobi at 2026-08-14T06:26:54-04:00 testsuite: Drop peak_megabytes_allocated from LinkableUsage tests LinkableUsage01/02 collected all metrics with a 2% tolerance. For peak_megabytes_allocated, whose granularity is 1 MB, that window is under 0.7 MB at this test's ~34 MB peak, so any 1 MB step failed the test (#27613, #27489). Drop that metric: max_bytes_used guards the Linkable-retention property with byte granularity, at a tolerance that still comfortably exceeds the noise observed in CI. Assisted-by: Claude Fable 5 - - - - - e5de423b by Simon Jakobi at 2026-08-14T06:26:54-04:00 testsuite: Don't truncate fractional baselines when computing bounds RelativeMetricAcceptanceWindow.get_bounds truncated the baseline with int() before applying the tolerance. Baselines can be fractional (they are averaged over several measurements), so this skewed the acceptance window downwards: in #27613, a baseline of 33.67 at 2% tolerance yielded bounds (32, 34) instead of (32, 35), rejecting a measurement that was within tolerance. Assisted-by: Claude Fable 5 - - - - - 0b1fa775 by Wolfgang Jeltsch at 2026-08-14T17:29:05+03:00 Add support for textual output of bytecode file content - - - - - 892 changed files: - + changelog.d/T20363 - changelog.d/fix-heap-census-large-arrays-19048 - + changelog.d/link-deterministic-order - + changelog.d/refactor-known-names - + changelog.d/show-byte-code - compiler/GHC.hs - + compiler/GHC/Builtin.hs - + compiler/GHC/Builtin/KnownKeys.hs - + compiler/GHC/Builtin/KnownOccs.hs - + compiler/GHC/Builtin/Modules.hs - − compiler/GHC/Builtin/Names.hs - − compiler/GHC/Builtin/Names/TH.hs - compiler/GHC/Builtin/PrimOps.hs - compiler/GHC/Builtin/PrimOps/Casts.hs - compiler/GHC/Builtin/PrimOps/Ids.hs - + compiler/GHC/Builtin/TH.hs - compiler/GHC/Builtin/Uniques.hs - compiler/GHC/Builtin/Uniques.hs-boot - − compiler/GHC/Builtin/Utils.hs - + compiler/GHC/Builtin/WiredIn/Ids.hs - compiler/GHC/Builtin/Types/Prim.hs → compiler/GHC/Builtin/WiredIn/Prim.hs - compiler/GHC/Builtin/Types/Literals.hs → compiler/GHC/Builtin/WiredIn/TypeLits.hs - compiler/GHC/Builtin/Types.hs → compiler/GHC/Builtin/WiredIn/Types.hs - compiler/GHC/Builtin/Types.hs-boot → compiler/GHC/Builtin/WiredIn/Types.hs-boot - compiler/GHC/ByteCode/Asm.hs - compiler/GHC/ByteCode/Serialize.hs - + compiler/GHC/ByteCode/Show.hs - compiler/GHC/Core.hs - compiler/GHC/Core/Coercion.hs - compiler/GHC/Core/DataCon.hs - compiler/GHC/Core/FVs.hs - compiler/GHC/Core/FamInstEnv.hs - compiler/GHC/Core/Lint.hs - compiler/GHC/Core/Make.hs - compiler/GHC/Core/Multiplicity.hs - compiler/GHC/Core/Opt/Arity.hs - compiler/GHC/Core/Opt/ConstantFold.hs - compiler/GHC/Core/Opt/CprAnal.hs - compiler/GHC/Core/Opt/DmdAnal.hs - compiler/GHC/Core/Opt/LiberateCase.hs - compiler/GHC/Core/Opt/OccurAnal.hs - compiler/GHC/Core/Opt/SetLevels.hs - compiler/GHC/Core/Opt/Simplify/Env.hs - compiler/GHC/Core/Opt/Simplify/Iteration.hs - compiler/GHC/Core/Opt/SpecConstr.hs - compiler/GHC/Core/Opt/Specialise.hs - compiler/GHC/Core/Opt/WorkWrap/Utils.hs - compiler/GHC/Core/Ppr.hs - compiler/GHC/Core/Predicate.hs - compiler/GHC/Core/Rules.hs - compiler/GHC/Core/SimpleOpt.hs - compiler/GHC/Core/Subst.hs - compiler/GHC/Core/TyCo/FVs.hs - compiler/GHC/Core/TyCo/Rep.hs - compiler/GHC/Core/TyCon.hs - compiler/GHC/Core/Type.hs - compiler/GHC/Core/Unfold.hs - compiler/GHC/Core/Unify.hs - compiler/GHC/Core/Utils.hs - compiler/GHC/CoreToIface.hs - compiler/GHC/CoreToStg.hs - compiler/GHC/CoreToStg/Prep.hs - compiler/GHC/Driver/Backpack.hs - compiler/GHC/Driver/Config/Tidy.hs - compiler/GHC/Driver/Downsweep.hs - compiler/GHC/Driver/DynFlags.hs - compiler/GHC/Driver/Env.hs - compiler/GHC/Driver/Env/KnotVars.hs - compiler/GHC/Driver/Env/Types.hs - compiler/GHC/Driver/Flags.hs - compiler/GHC/Driver/Main/Hsc.hs - compiler/GHC/Driver/Main/Passes.hs - compiler/GHC/Driver/Make.hs - compiler/GHC/Driver/MakeFile.hs - compiler/GHC/Driver/Pipeline.hs - compiler/GHC/Driver/Pipeline/Execute.hs - compiler/GHC/Driver/Plugins.hs - compiler/GHC/Driver/Session.hs - compiler/GHC/Hs/Binds.hs - compiler/GHC/Hs/Dump.hs - compiler/GHC/Hs/Expr.hs - compiler/GHC/Hs/ImpExp.hs - compiler/GHC/Hs/Lit.hs - compiler/GHC/Hs/Pat.hs - compiler/GHC/Hs/Syn/Type.hs - compiler/GHC/Hs/Type.hs - compiler/GHC/Hs/Utils.hs - compiler/GHC/HsToCore.hs - compiler/GHC/HsToCore/Arrows.hs - compiler/GHC/HsToCore/Binds.hs - compiler/GHC/HsToCore/Expr.hs - compiler/GHC/HsToCore/Foreign/C.hs - compiler/GHC/HsToCore/Foreign/Call.hs - compiler/GHC/HsToCore/Foreign/JavaScript.hs - compiler/GHC/HsToCore/Foreign/Utils.hs - compiler/GHC/HsToCore/Foreign/Wasm.hs - compiler/GHC/HsToCore/ListComp.hs - compiler/GHC/HsToCore/Match.hs - compiler/GHC/HsToCore/Match.hs-boot - compiler/GHC/HsToCore/Match/Constructor.hs - compiler/GHC/HsToCore/Match/Literal.hs - compiler/GHC/HsToCore/Monad.hs - compiler/GHC/HsToCore/Pmc/Check.hs - compiler/GHC/HsToCore/Pmc/Desugar.hs - compiler/GHC/HsToCore/Pmc/Ppr.hs - compiler/GHC/HsToCore/Pmc/Solver.hs - compiler/GHC/HsToCore/Pmc/Solver/Types.hs - compiler/GHC/HsToCore/Quote.hs - compiler/GHC/HsToCore/Types.hs - compiler/GHC/HsToCore/Usage.hs - compiler/GHC/HsToCore/Utils.hs - compiler/GHC/Iface/Binary.hs - compiler/GHC/Iface/Env.hs - − compiler/GHC/Iface/Env.hs-boot - compiler/GHC/Iface/Errors/Ppr.hs - compiler/GHC/Iface/Errors/Types.hs - compiler/GHC/Iface/Ext/Ast.hs - compiler/GHC/Iface/Load.hs - compiler/GHC/Iface/Make.hs - compiler/GHC/Iface/Recomp.hs - compiler/GHC/Iface/Syntax.hs - compiler/GHC/Iface/Tidy.hs - compiler/GHC/Iface/Type.hs - compiler/GHC/IfaceToCore.hs - compiler/GHC/Parser.y - compiler/GHC/Parser/Annotation.hs - compiler/GHC/Parser/Errors/Ppr.hs - compiler/GHC/Parser/Header.hs - compiler/GHC/Parser/PostProcess.hs - compiler/GHC/Plugins.hs - compiler/GHC/Rename/Env.hs - compiler/GHC/Rename/Expr.hs - compiler/GHC/Rename/HsType.hs - compiler/GHC/Rename/Lit.hs - compiler/GHC/Rename/Module.hs - compiler/GHC/Rename/Names.hs - compiler/GHC/Rename/Pat.hs - compiler/GHC/Rename/Splice.hs - compiler/GHC/Rename/Unbound.hs - compiler/GHC/Rename/Utils.hs - compiler/GHC/Runtime/Context.hs - compiler/GHC/Runtime/Debugger.hs - compiler/GHC/Runtime/Eval.hs - compiler/GHC/Runtime/Heap/Inspect.hs - compiler/GHC/Runtime/Interpreter.hs - compiler/GHC/Runtime/Loader.hs - compiler/GHC/Stg/BcPrep.hs - compiler/GHC/Stg/Unarise.hs - compiler/GHC/StgToByteCode.hs - compiler/GHC/StgToCmm/Bind.hs - compiler/GHC/StgToCmm/DataCon.hs - compiler/GHC/StgToCmm/Env.hs - compiler/GHC/StgToCmm/Foreign.hs - compiler/GHC/StgToCmm/Lit.hs - compiler/GHC/StgToCmm/Ticky.hs - compiler/GHC/StgToJS/Apply.hs - compiler/GHC/StgToJS/Arg.hs - compiler/GHC/StgToJS/Expr.hs - compiler/GHC/StgToJS/FFI.hs - compiler/GHC/StgToJS/Linker/Utils.hs - compiler/GHC/StgToJS/Utils.hs - compiler/GHC/Tc/Deriv.hs - compiler/GHC/Tc/Deriv/Functor.hs - compiler/GHC/Tc/Deriv/Generate.hs - compiler/GHC/Tc/Deriv/Generics.hs - compiler/GHC/Tc/Deriv/Infer.hs - compiler/GHC/Tc/Deriv/Utils.hs - compiler/GHC/Tc/Errors.hs - compiler/GHC/Tc/Errors/Hole.hs - compiler/GHC/Tc/Errors/Ppr.hs - compiler/GHC/Tc/Errors/Types.hs - compiler/GHC/Tc/Gen/App.hs - compiler/GHC/Tc/Gen/Arrow.hs - compiler/GHC/Tc/Gen/Bind.hs - compiler/GHC/Tc/Gen/Default.hs - compiler/GHC/Tc/Gen/Export.hs - compiler/GHC/Tc/Gen/Expr.hs - compiler/GHC/Tc/Gen/Foreign.hs - compiler/GHC/Tc/Gen/Head.hs - compiler/GHC/Tc/Gen/HsType.hs - compiler/GHC/Tc/Gen/Match.hs - compiler/GHC/Tc/Gen/Pat.hs - compiler/GHC/Tc/Gen/Sig.hs - compiler/GHC/Tc/Gen/Splice.hs - compiler/GHC/Tc/Instance/Class.hs - compiler/GHC/Tc/Instance/FunDeps.hs - compiler/GHC/Tc/Instance/Typeable.hs - compiler/GHC/Tc/Module.hs - compiler/GHC/Tc/Plugin.hs - compiler/GHC/Tc/Solver.hs - compiler/GHC/Tc/Solver/Default.hs - compiler/GHC/Tc/Solver/Dict.hs - compiler/GHC/Tc/Solver/FunDeps.hs - compiler/GHC/Tc/Solver/InertSet.hs - compiler/GHC/Tc/Solver/Monad.hs - compiler/GHC/Tc/Solver/Rewrite.hs - compiler/GHC/Tc/TyCl.hs - compiler/GHC/Tc/TyCl/Build.hs - compiler/GHC/Tc/TyCl/Instance.hs - compiler/GHC/Tc/TyCl/PatSyn.hs - compiler/GHC/Tc/TyCl/Utils.hs - compiler/GHC/Tc/Types.hs - compiler/GHC/Tc/Types/Constraint.hs - compiler/GHC/Tc/Types/Evidence.hs - compiler/GHC/Tc/Types/LclEnv.hs - compiler/GHC/Tc/Types/Origin.hs - compiler/GHC/Tc/Utils/Backpack.hs - compiler/GHC/Tc/Utils/Concrete.hs - compiler/GHC/Tc/Utils/Env.hs - compiler/GHC/Tc/Utils/Instantiate.hs - compiler/GHC/Tc/Utils/Monad.hs - compiler/GHC/Tc/Utils/TcMType.hs - compiler/GHC/Tc/Utils/TcType.hs - compiler/GHC/Tc/Utils/Unify.hs - compiler/GHC/Tc/Validity.hs - compiler/GHC/Tc/Zonk/Type.hs - compiler/GHC/ThToHs.hs - compiler/GHC/Types/DefaultEnv.hs - compiler/GHC/Types/Error/Codes.hs - compiler/GHC/Types/Hint.hs - compiler/GHC/Types/Hint/Ppr.hs - compiler/GHC/Types/Id/Make.hs - compiler/GHC/Types/Literal.hs - compiler/GHC/Types/Name.hs - compiler/GHC/Types/Name/Cache.hs - compiler/GHC/Types/Name/Ppr.hs - compiler/GHC/Types/Name/Reader.hs - compiler/GHC/Types/RepType.hs - compiler/GHC/Types/TyThing.hs - compiler/GHC/Types/Unique.hs - compiler/GHC/Types/Unique/FM.hs - + compiler/GHC/Types/UnresolvedImport.hs - compiler/GHC/Types/Var.hs - compiler/GHC/Unit.hs - compiler/GHC/Unit/External.hs - compiler/GHC/Unit/External/Index.hs - compiler/GHC/Unit/External/ModuleOrigin.hs - compiler/GHC/Unit/External/Providers.hs - compiler/GHC/Unit/Finder.hs - compiler/GHC/Unit/Finder/Types.hs - compiler/GHC/Unit/Module/Deps.hs - compiler/GHC/Unit/Module/ModSummary.hs - compiler/GHC/Unit/State.hs - compiler/GHC/Unit/Types.hs - compiler/GHC/Utils/Binary.hs - − compiler/GHC/Utils/Binary/Typeable.hs - compiler/Language/Haskell/Syntax/Expr.hs - compiler/ghc.cabal.in - docs/index.html.in - docs/users_guide/ghc_config.py.in - docs/users_guide/separate_compilation.rst - docs/users_guide/using.rst - ghc/GHC/Driver/Session/Mode.hs - ghc/GHCi/UI.hs - ghc/GHCi/UI/Monad.hs - ghc/Main.hs - − hadrian/hie-bios - hadrian/hie-bios.bat - hadrian/src/Rules/Generate.hs - hie.yaml - libraries/base/base.cabal.in - libraries/base/src/Control/Applicative.hs - libraries/base/src/Control/Concurrent.hs - libraries/base/src/Control/Concurrent/Chan.hs - libraries/base/src/Control/Concurrent/QSem.hs - libraries/base/src/Control/Concurrent/QSemN.hs - libraries/base/src/Data/Array/Byte.hs - libraries/base/src/Data/Bifoldable.hs - libraries/base/src/Data/Bifoldable1.hs - libraries/base/src/Data/Bifunctor.hs - libraries/base/src/Data/Bitraversable.hs - libraries/base/src/Data/Bool.hs - libraries/base/src/Data/Complex.hs - libraries/base/src/Data/Data.hs - libraries/base/src/Data/Enum.hs - libraries/base/src/Data/Fixed.hs - libraries/base/src/Data/Foldable1.hs - libraries/base/src/Data/Functor/Classes.hs - libraries/base/src/Data/Functor/Compose.hs - libraries/base/src/Data/Functor/Contravariant.hs - libraries/base/src/Data/Functor/Product.hs - libraries/base/src/Data/Functor/Sum.hs - libraries/base/src/Data/List.hs - libraries/base/src/Data/List/NonEmpty.hs - libraries/base/src/Data/List/NubOrdSet.hs - libraries/base/src/Data/Semigroup.hs - libraries/base/src/Data/Version.hs - libraries/base/src/GHC/Base.hs - libraries/base/src/GHC/ByteOrder.hs - + libraries/base/src/GHC/Essentials.hs - libraries/base/src/GHC/Exts.hs - libraries/base/src/GHC/Fingerprint.hs - libraries/base/src/GHC/RTS/Flags.hs - libraries/base/src/GHC/ResponseFile.hs - libraries/base/src/GHC/Stats.hs - libraries/base/src/GHC/Weak/Finalize.hs - libraries/base/src/Numeric.hs - libraries/base/src/Prelude.hs - libraries/base/src/System/CPUTime/Posix/ClockGetTime.hsc - libraries/base/src/System/CPUTime/Posix/RUsage.hsc - libraries/base/src/System/CPUTime/Posix/Times.hsc - libraries/base/src/System/CPUTime/Unsupported.hs - libraries/base/src/System/Console/GetOpt.hs - libraries/base/src/System/Exit.hs - libraries/base/src/System/IO.hs - libraries/base/src/System/IO/OS.hs - libraries/base/src/System/IO/Unsafe.hs - libraries/base/src/System/Info.hs - libraries/base/src/System/Timeout.hs - libraries/base/src/Text/Printf.hs - libraries/base/src/Text/Read.hs - libraries/base/src/Text/Show/Functions.hs - libraries/binary - libraries/ghc-experimental/src/Data/Sum/Experimental.hs - libraries/ghc-experimental/src/Data/Tuple/Experimental.hs - libraries/ghc-experimental/src/GHC/Profiling/Eras.hs - libraries/ghc-experimental/src/Prelude/Experimental.hs - libraries/ghc-internal/codepages/MakeTable.hs - libraries/ghc-internal/ghc-internal.cabal.in - libraries/ghc-internal/include/RtsIfaceSymbols.h - libraries/ghc-internal/src/GHC/Internal/AllocationLimitHandler.hs - libraries/ghc-internal/src/GHC/Internal/Arr.hs - libraries/ghc-internal/src/GHC/Internal/ArrayArray.hs - libraries/ghc-internal/src/GHC/Internal/Base.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Backend.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Backend/GMP.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Backend/Native.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/BigNat.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/BigNat.hs-boot - libraries/ghc-internal/src/GHC/Internal/Bignum/Integer.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Integer.hs-boot - libraries/ghc-internal/src/GHC/Internal/Bignum/Natural.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Natural.hs-boot - libraries/ghc-internal/src/GHC/Internal/Bignum/Primitives.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/WordArray.hs - libraries/ghc-internal/src/GHC/Internal/Bits.hs - libraries/ghc-internal/src/GHC/Internal/ByteOrder.hs - libraries/ghc-internal/src/GHC/Internal/CString.hs - libraries/ghc-internal/src/GHC/Internal/Char.hs - libraries/ghc-internal/src/GHC/Internal/Classes.hs - libraries/ghc-internal/src/GHC/Internal/Classes/IP.hs - libraries/ghc-internal/src/GHC/Internal/Clock.hsc - libraries/ghc-internal/src/GHC/Internal/ClosureTypes.hs - libraries/ghc-internal/src/GHC/Internal/Conc/Bound.hs - libraries/ghc-internal/src/GHC/Internal/Conc/IO.hs - libraries/ghc-internal/src/GHC/Internal/Conc/POSIX.hs - libraries/ghc-internal/src/GHC/Internal/Conc/POSIX/Const.hsc - libraries/ghc-internal/src/GHC/Internal/Conc/Signal.hs - libraries/ghc-internal/src/GHC/Internal/Conc/Sync.hs - libraries/ghc-internal/src/GHC/Internal/ConsoleHandler.hsc - libraries/ghc-internal/src/GHC/Internal/Control/Arrow.hs - libraries/ghc-internal/src/GHC/Internal/Control/Category.hs - libraries/ghc-internal/src/GHC/Internal/Control/Concurrent/MVar.hs - libraries/ghc-internal/src/GHC/Internal/Control/Exception.hs - libraries/ghc-internal/src/GHC/Internal/Control/Exception/Base.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fail.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fix.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/IO/Class.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST/Imp.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST/Lazy.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST/Lazy/Imp.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/Zip.hs - libraries/ghc-internal/src/GHC/Internal/Data/Bits.hs - libraries/ghc-internal/src/GHC/Internal/Data/Coerce.hs - libraries/ghc-internal/src/GHC/Internal/Data/Data.hs - libraries/ghc-internal/src/GHC/Internal/Data/Dynamic.hs - libraries/ghc-internal/src/GHC/Internal/Data/Either.hs - libraries/ghc-internal/src/GHC/Internal/Data/Foldable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Function.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Const.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Identity.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Utils.hs - libraries/ghc-internal/src/GHC/Internal/Data/IORef.hs - libraries/ghc-internal/src/GHC/Internal/Data/List.hs - libraries/ghc-internal/src/GHC/Internal/Data/List/NonEmpty.hs - libraries/ghc-internal/src/GHC/Internal/Data/Maybe.hs - libraries/ghc-internal/src/GHC/Internal/Data/Monoid.hs - libraries/ghc-internal/src/GHC/Internal/Data/NonEmpty.hs - libraries/ghc-internal/src/GHC/Internal/Data/OldList.hs - libraries/ghc-internal/src/GHC/Internal/Data/Ord.hs - libraries/ghc-internal/src/GHC/Internal/Data/Proxy.hs - libraries/ghc-internal/src/GHC/Internal/Data/STRef.hs - libraries/ghc-internal/src/GHC/Internal/Data/Semigroup/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Data/String.hs - libraries/ghc-internal/src/GHC/Internal/Data/Traversable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Tuple.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Bool.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Coercion.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Equality.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Ord.hs - libraries/ghc-internal/src/GHC/Internal/Data/Typeable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Typeable/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Data/Unique.hs - libraries/ghc-internal/src/GHC/Internal/Data/Version.hs - libraries/ghc-internal/src/GHC/Internal/Data/Void.hs - libraries/ghc-internal/src/GHC/Internal/Debug/Trace.hs - libraries/ghc-internal/src/GHC/Internal/Desugar.hs - libraries/ghc-internal/src/GHC/Internal/Encoding/UTF8.hs - libraries/ghc-internal/src/GHC/Internal/Enum.hs - libraries/ghc-internal/src/GHC/Internal/Enum.hs-boot - libraries/ghc-internal/src/GHC/Internal/Environment.hs - libraries/ghc-internal/src/GHC/Internal/Err.hs - libraries/ghc-internal/src/GHC/Internal/Event/Arr.hs - libraries/ghc-internal/src/GHC/Internal/Event/Array.hs - libraries/ghc-internal/src/GHC/Internal/Event/Control.hs - libraries/ghc-internal/src/GHC/Internal/Event/EPoll.hsc - libraries/ghc-internal/src/GHC/Internal/Event/IntTable.hs - libraries/ghc-internal/src/GHC/Internal/Event/IntVar.hs - libraries/ghc-internal/src/GHC/Internal/Event/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Event/Internal/Types.hs - libraries/ghc-internal/src/GHC/Internal/Event/KQueue.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Manager.hs - libraries/ghc-internal/src/GHC/Internal/Event/PSQ.hs - libraries/ghc-internal/src/GHC/Internal/Event/Poll.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Thread.hs - libraries/ghc-internal/src/GHC/Internal/Event/TimeOut.hs - libraries/ghc-internal/src/GHC/Internal/Event/TimerManager.hs - libraries/ghc-internal/src/GHC/Internal/Event/Unique.hs - libraries/ghc-internal/src/GHC/Internal/Event/Windows.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Windows/Clock.hs - libraries/ghc-internal/src/GHC/Internal/Event/Windows/ConsoleEvent.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Windows/FFI.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Windows/ManagedThreadPool.hs - libraries/ghc-internal/src/GHC/Internal/Event/Windows/Thread.hs - libraries/ghc-internal/src/GHC/Internal/Exception.hs - libraries/ghc-internal/src/GHC/Internal/Exception/Backtrace.hs - libraries/ghc-internal/src/GHC/Internal/Exception/Backtrace.hs-boot - libraries/ghc-internal/src/GHC/Internal/Exception/Context.hs - libraries/ghc-internal/src/GHC/Internal/Exception/Context.hs-boot - libraries/ghc-internal/src/GHC/Internal/Exception/Type.hs - libraries/ghc-internal/src/GHC/Internal/Exception/Type.hs-boot - libraries/ghc-internal/src/GHC/Internal/ExecutionStack.hs - libraries/ghc-internal/src/GHC/Internal/ExecutionStack/Internal.hsc - libraries/ghc-internal/src/GHC/Internal/Exts.hs - libraries/ghc-internal/src/GHC/Internal/Fingerprint.hs - libraries/ghc-internal/src/GHC/Internal/Fingerprint/Type.hs - libraries/ghc-internal/src/GHC/Internal/Float.hs - libraries/ghc-internal/src/GHC/Internal/Float/ConversionUtils.hs - libraries/ghc-internal/src/GHC/Internal/Float/RealFracMethods.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/ConstPtr.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/Error.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/String.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/String/Encoding.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/Types.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/ForeignPtr/Imp.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Alloc.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Array.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Error.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Pool.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Utils.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Ptr.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Storable.hs - libraries/ghc-internal/src/GHC/Internal/ForeignPtr.hs - libraries/ghc-internal/src/GHC/Internal/ForeignSrcLang.hs - libraries/ghc-internal/src/GHC/Internal/Functor/ZipList.hs - libraries/ghc-internal/src/GHC/Internal/GHCi.hs - libraries/ghc-internal/src/GHC/Internal/GHCi/Helpers.hs - libraries/ghc-internal/src/GHC/Internal/Generics.hs - libraries/ghc-internal/src/GHC/Internal/Heap/Closures.hs - libraries/ghc-internal/src/GHC/Internal/Heap/Constants.hsc - libraries/ghc-internal/src/GHC/Internal/Heap/InfoTable.hsc - libraries/ghc-internal/src/GHC/Internal/Heap/InfoTable/Types.hsc - libraries/ghc-internal/src/GHC/Internal/Heap/InfoTableProf.hsc - libraries/ghc-internal/src/GHC/Internal/Heap/ProfInfo/Types.hs - libraries/ghc-internal/src/GHC/Internal/IO.hs - libraries/ghc-internal/src/GHC/Internal/IO.hs-boot - libraries/ghc-internal/src/GHC/Internal/IO/Buffer.hs - libraries/ghc-internal/src/GHC/Internal/IO/BufferedIO.hs - libraries/ghc-internal/src/GHC/Internal/IO/Device.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/CodePage.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/CodePage/API.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/CodePage/Table.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Failure.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Iconv.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Latin1.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Types.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/UTF16.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/UTF32.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/UTF8.hs - libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs - libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs-boot - libraries/ghc-internal/src/GHC/Internal/IO/FD.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/FD.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Internals.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/Common.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/Flock.hsc - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/LinuxOFD.hsc - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/NoOp.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/Windows.hsc - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Text.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Types.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Types.hs-boot - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Windows.hs - libraries/ghc-internal/src/GHC/Internal/IO/IOMode.hs - libraries/ghc-internal/src/GHC/Internal/IO/SubSystem.hs - libraries/ghc-internal/src/GHC/Internal/IO/Unsafe.hs - libraries/ghc-internal/src/GHC/Internal/IO/Windows/Encoding.hs - libraries/ghc-internal/src/GHC/Internal/IO/Windows/Handle.hsc - libraries/ghc-internal/src/GHC/Internal/IOArray.hs - libraries/ghc-internal/src/GHC/Internal/IORef.hs - libraries/ghc-internal/src/GHC/Internal/InfoProv.hs - libraries/ghc-internal/src/GHC/Internal/InfoProv/Types.hsc - libraries/ghc-internal/src/GHC/Internal/Int.hs - libraries/ghc-internal/src/GHC/Internal/IsList.hs - libraries/ghc-internal/src/GHC/Internal/Ix.hs - libraries/ghc-internal/src/GHC/Internal/JS/Foreign/Callback.hs - libraries/ghc-internal/src/GHC/Internal/JS/Prim.hs - libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs - libraries/ghc-internal/src/GHC/Internal/Lexeme.hs - libraries/ghc-internal/src/GHC/Internal/List.hs - libraries/ghc-internal/src/GHC/Internal/MVar.hs - libraries/ghc-internal/src/GHC/Internal/Magic.hs - libraries/ghc-internal/src/GHC/Internal/Magic/Dict.hs - libraries/ghc-internal/src/GHC/Internal/Maybe.hs - libraries/ghc-internal/src/GHC/Internal/Num.hs - libraries/ghc-internal/src/GHC/Internal/Num.hs-boot - libraries/ghc-internal/src/GHC/Internal/Numeric.hs - libraries/ghc-internal/src/GHC/Internal/OverloadedLabels.hs - libraries/ghc-internal/src/GHC/Internal/Pack.hs - libraries/ghc-internal/src/GHC/Internal/Prim/Exception.hs - libraries/ghc-internal/src/GHC/Internal/Prim/Ext.hs - libraries/ghc-internal/src/GHC/Internal/Prim/Panic.hs - libraries/ghc-internal/src/GHC/Internal/Prim/PtrEq.hs - libraries/ghc-internal/src/GHC/Internal/Profiling.hs - libraries/ghc-internal/src/GHC/Internal/Ptr.hs - libraries/ghc-internal/src/GHC/Internal/RTS/Flags.hsc - libraries/ghc-internal/src/GHC/Internal/RTS/Flags/Test.hsc - libraries/ghc-internal/src/GHC/Internal/Read.hs - libraries/ghc-internal/src/GHC/Internal/Real.hs - libraries/ghc-internal/src/GHC/Internal/Real.hs-boot - libraries/ghc-internal/src/GHC/Internal/Records.hs - libraries/ghc-internal/src/GHC/Internal/ST.hs - libraries/ghc-internal/src/GHC/Internal/STM.hs - libraries/ghc-internal/src/GHC/Internal/STRef.hs - libraries/ghc-internal/src/GHC/Internal/Show.hs - libraries/ghc-internal/src/GHC/Internal/Stable.hs - libraries/ghc-internal/src/GHC/Internal/StableName.hs - libraries/ghc-internal/src/GHC/Internal/Stack.hs - libraries/ghc-internal/src/GHC/Internal/Stack.hs-boot - libraries/ghc-internal/src/GHC/Internal/Stack/Annotation.hs - libraries/ghc-internal/src/GHC/Internal/Stack/CCS.hsc - libraries/ghc-internal/src/GHC/Internal/Stack/CloneStack.hs - libraries/ghc-internal/src/GHC/Internal/Stack/Constants.hsc - libraries/ghc-internal/src/GHC/Internal/Stack/ConstantsProf.hsc - libraries/ghc-internal/src/GHC/Internal/Stack/Decode.hs - libraries/ghc-internal/src/GHC/Internal/Stack/Types.hs - libraries/ghc-internal/src/GHC/Internal/StaticPtr.hs - libraries/ghc-internal/src/GHC/Internal/StaticPtr/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Stats.hsc - libraries/ghc-internal/src/GHC/Internal/Storable.hs - libraries/ghc-internal/src/GHC/Internal/System/Environment.hs - libraries/ghc-internal/src/GHC/Internal/System/Environment/Blank.hsc - libraries/ghc-internal/src/GHC/Internal/System/Environment/ExecutablePath.hsc - libraries/ghc-internal/src/GHC/Internal/System/IO/Error.hs - libraries/ghc-internal/src/GHC/Internal/System/Mem.hs - libraries/ghc-internal/src/GHC/Internal/System/Posix/Internals.hs - libraries/ghc-internal/src/GHC/Internal/System/Posix/Types.hs - libraries/ghc-internal/src/GHC/Internal/TH/Lib.hs - libraries/ghc-internal/src/GHC/Internal/TH/Lift.hs - libraries/ghc-internal/src/GHC/Internal/TH/Monad.hs - libraries/ghc-internal/src/GHC/Internal/TH/Syntax.hs - libraries/ghc-internal/src/GHC/Internal/Text/ParserCombinators/ReadP.hs - libraries/ghc-internal/src/GHC/Internal/Text/ParserCombinators/ReadPrec.hs - libraries/ghc-internal/src/GHC/Internal/Text/Read/Lex.hs - libraries/ghc-internal/src/GHC/Internal/TopHandler.hs - libraries/ghc-internal/src/GHC/Internal/Tuple.hs - libraries/ghc-internal/src/GHC/Internal/Type/Reflection.hs - libraries/ghc-internal/src/GHC/Internal/Type/Reflection/Unsafe.hs - libraries/ghc-internal/src/GHC/Internal/TypeError.hs - libraries/ghc-internal/src/GHC/Internal/TypeLits.hs - libraries/ghc-internal/src/GHC/Internal/TypeLits/Internal.hs - libraries/ghc-internal/src/GHC/Internal/TypeNats.hs - libraries/ghc-internal/src/GHC/Internal/TypeNats/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Types.hs - libraries/ghc-internal/src/GHC/Internal/Unicode.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Bits.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/DerivedCoreProperties.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/GeneralCategory.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleLowerCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleTitleCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleUpperCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Version.hs - libraries/ghc-internal/src/GHC/Internal/Unsafe/Coerce.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Conc.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Conc/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Exports.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Imports.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Types.hs - libraries/ghc-internal/src/GHC/Internal/Weak.hs - libraries/ghc-internal/src/GHC/Internal/Weak/Finalize.hs - libraries/ghc-internal/src/GHC/Internal/Windows.hs - libraries/ghc-internal/src/GHC/Internal/Word.hs - libraries/ghc-internal/tools/ucd2haskell/exe/UCD2Haskell/ModuleGenerators.hs - libraries/ghc-prim/Dummy.hs - libraries/ghc-prim/ghc-prim.cabal - libraries/template-haskell/Language/Haskell/TH/Lib.hs - linters/lint-codes/LintCodes/Static.hs - rts/LdvProfile.c - rts/PrimOps.cmm - rts/Printer.c - rts/ProfHeap.c - rts/include/rts/RtsToHsIface.h - rts/include/rts/storage/ClosureMacros.h - rts/sm/Sanity.c - rts/sm/Storage.c - testsuite/driver/perf_notes.py - testsuite/driver/testlib.py - testsuite/driver/testutil.py - testsuite/tests/ado/T13242a.stderr - testsuite/tests/annotations/should_fail/annfail10.stderr - testsuite/tests/backpack/cabal/bkpcabal07/Makefile - testsuite/tests/backpack/should_compile/T20396.stderr - testsuite/tests/backpack/should_fail/bkpfail17.stderr - testsuite/tests/bytecode/TLinkable/all.T - testsuite/tests/cabal/T12485/Makefile - + testsuite/tests/cabal/T27013a/Makefile - + testsuite/tests/cabal/T27013a/Setup.hs - + testsuite/tests/cabal/T27013a/all.T - + testsuite/tests/cabal/T27013a/composition.cabal - + testsuite/tests/cabal/T27013a/src/Data/Composition.hs - + testsuite/tests/cabal/T27013d/Composition.hs - + testsuite/tests/cabal/T27013d/Makefile - + testsuite/tests/cabal/T27013d/T27013d.stdout - + testsuite/tests/cabal/T27013d/all.T - testsuite/tests/callarity/unittest/CallArity1.hs - testsuite/tests/corelint/LintEtaExpand.hs - testsuite/tests/corelint/T21115b.stderr - testsuite/tests/corelint/T27374.hs - testsuite/tests/count-deps/CountDepsParser.stdout - testsuite/tests/deSugar/should_compile/T13208.stdout - testsuite/tests/deSugar/should_compile/T16615.stderr - testsuite/tests/deSugar/should_compile/T2431.stderr - testsuite/tests/default/DefaultImportFail01.stderr - testsuite/tests/default/DefaultImportFail02.stderr - testsuite/tests/default/DefaultImportFail03.stderr - testsuite/tests/default/DefaultImportFail04.stderr - testsuite/tests/default/DefaultImportFail05.stderr - testsuite/tests/default/DefaultImportFail07.stderr - testsuite/tests/default/T25775.stderr - testsuite/tests/deriving/should_compile/T14682.stderr - testsuite/tests/deriving/should_compile/T20496.stderr - testsuite/tests/diagnostic-codes/codes.stdout - testsuite/tests/dmdanal/should_compile/T23398.stderr - + testsuite/tests/driver/T27013b/Makefile - + testsuite/tests/driver/T27013b/T27013b.stdout - + testsuite/tests/driver/T27013b/X.hs - + testsuite/tests/driver/T27013b/all.T - + testsuite/tests/driver/T27013c/Makefile - + testsuite/tests/driver/T27013c/T27013c.stdout - + testsuite/tests/driver/T27013c/X.hs - + testsuite/tests/driver/T27013c/all.T - + testsuite/tests/driver/T27013e/T27013e.hs - + testsuite/tests/driver/T27013e/T27013e.stderr - + testsuite/tests/driver/T27013e/all.T - + testsuite/tests/driver/T27013f/T27013f.hs - + testsuite/tests/driver/T27013f/T27013f.stderr - + testsuite/tests/driver/T27013f/all.T - + testsuite/tests/driver/T27013g/T27013g.hs - + testsuite/tests/driver/T27013g/all.T - + testsuite/tests/driver/T27013h/GHC/Essentials.hs - + testsuite/tests/driver/T27013h/T27013h.stderr - + testsuite/tests/driver/T27013h/all.T - + testsuite/tests/driver/T27013h/unitT27013h - + testsuite/tests/driver/T27013i/T27013i.hs - + testsuite/tests/driver/T27013i/T27013i.stderr - + testsuite/tests/driver/T27013i/all.T - testsuite/tests/driver/T3007/A/Internal.hs - testsuite/tests/driver/T3007/Makefile - testsuite/tests/driver/make-prim/Makefile - testsuite/tests/driver/multipleHomeUnits/Makefile - testsuite/tests/driver/multipleHomeUnits/all.T - + testsuite/tests/driver/multipleHomeUnits/essentials-home/GHC/Essentials.hs - + testsuite/tests/driver/multipleHomeUnits/essentials-order-base/B.hs - + testsuite/tests/driver/multipleHomeUnits/essentials-order-user/U.hs - + testsuite/tests/driver/multipleHomeUnits/essentials-user/M.hs - testsuite/tests/driver/multipleHomeUnits/multipleHomeUnitsModuleVisibility.stderr - + testsuite/tests/driver/multipleHomeUnits/multipleHomeUnits_essentials.stdout - + testsuite/tests/driver/multipleHomeUnits/multipleHomeUnits_essentials_order.stderr - + testsuite/tests/driver/multipleHomeUnits/multipleHomeUnits_essentials_recomp.stdout - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsHome - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsHomeHidden - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsOrderBase - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsOrderUser - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsUser - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsUserHidden - testsuite/tests/driver/recomp24656/Makefile - testsuite/tests/driver/recomp24656/recomp24656.stdout - testsuite/tests/ffi/should_fail/all.T - + testsuite/tests/ffi/should_fail/ccfail006.hs - + testsuite/tests/ffi/should_fail/ccfail006.stderr - + testsuite/tests/ffi/should_fail/ccfail007.hs - + testsuite/tests/ffi/should_fail/ccfail007.stderr - + testsuite/tests/ffi/should_fail/ccfail008.hs - + testsuite/tests/ffi/should_fail/ccfail008.stderr - + testsuite/tests/ffi/should_fail/ccfail009.hs - + testsuite/tests/ffi/should_fail/ccfail009.stderr - + testsuite/tests/ghc-api/EssentialsCoverage.hs - testsuite/tests/ghc-api/T25121_status.stdout - testsuite/tests/ghc-api/T8628.hs - testsuite/tests/ghc-api/all.T - testsuite/tests/ghc-api/downsweep/PartialDownsweep.hs - testsuite/tests/ghc-api/exactprint/T22919.stderr - testsuite/tests/ghc-api/exactprint/ZeroWidthSemi.stderr - testsuite/tests/ghci.debugger/scripts/break006.stderr - testsuite/tests/ghci.debugger/scripts/print019.stderr - testsuite/tests/ghci/scripts/ListTuplePunsPpr.stdout - testsuite/tests/ghci/scripts/T4175.stdout - testsuite/tests/ghci/scripts/all.T - testsuite/tests/ghci/scripts/ghci064.stdout - testsuite/tests/hiefile/should_run/T23120.stdout - testsuite/tests/iface/IfaceSharingIfaceType.hs - testsuite/tests/iface/IfaceSharingName.hs - testsuite/tests/indexed-types/should_fail/T12522a.stderr - testsuite/tests/interface-stability/base-exports.stdout - testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs - testsuite/tests/interface-stability/base-exports.stdout-mingw32 - testsuite/tests/interface-stability/ghc-experimental-exports.stdout - testsuite/tests/interface-stability/ghc-experimental-exports.stdout-mingw32 - testsuite/tests/interface-stability/ghc-prim-exports.stdout - testsuite/tests/interface-stability/ghc-prim-exports.stdout-mingw32 - testsuite/tests/interface-stability/template-haskell-exports.stdout - testsuite/tests/javascript/Makefile - testsuite/tests/javascript/T24495.hs - testsuite/tests/module/mod185.stderr - testsuite/tests/numeric/should_compile/T14170.stdout - testsuite/tests/numeric/should_compile/T14465.stdout - testsuite/tests/numeric/should_compile/T23907.stderr - testsuite/tests/numeric/should_compile/T7116.stdout - testsuite/tests/overloadedlists/should_fail/overloadedlistsfail01.stderr - testsuite/tests/package/all.T - testsuite/tests/parser/should_compile/DumpParsedAst.stderr - testsuite/tests/parser/should_compile/DumpParsedAstComments.stderr - testsuite/tests/parser/should_compile/DumpRenamedAst.stderr - testsuite/tests/parser/should_compile/DumpSemis.stderr - testsuite/tests/parser/should_compile/DumpTypecheckedAst.stderr - testsuite/tests/parser/should_compile/KindSigs.stderr - testsuite/tests/parser/should_compile/T14189.stderr - testsuite/tests/parser/should_compile/T15279.stderr - testsuite/tests/parser/should_compile/T20718.stderr - testsuite/tests/parser/should_compile/T20846.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail10.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail11.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail13.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail8.stderr - testsuite/tests/parser/should_fail/T16270h.hs - testsuite/tests/partial-sigs/should_fail/NamedWildcardsNotInMonotype.stderr - testsuite/tests/patsyn/should_fail/T26465.stderr - testsuite/tests/perf/compiler/all.T - testsuite/tests/perf/should_run/ByteCodeAsm.hs - testsuite/tests/plugins/defaulting-plugin/DefaultInterference.hs - testsuite/tests/plugins/defaulting-plugin/DefaultInvalid.hs - testsuite/tests/plugins/defaulting-plugin/DefaultMultiParam.hs - testsuite/tests/plugins/plugins09.stdout - testsuite/tests/plugins/plugins10.stdout - testsuite/tests/plugins/plugins11.stdout - testsuite/tests/plugins/simple-plugin/Simple/ReplacePlugin.hs - testsuite/tests/plugins/static-plugins.stdout - testsuite/tests/printer/Test20297.stdout - testsuite/tests/printer/Test24533.stdout - testsuite/tests/profiling/should_run/callstack001.stdout - testsuite/tests/profiling/should_run/callstack002.stderr - testsuite/tests/profiling/should_run/callstack002.stdout - testsuite/tests/rename/should_compile/T3103/Foreign/Ptr.hs - testsuite/tests/rename/should_compile/T3103/GHC/Base.lhs - testsuite/tests/rename/should_compile/T3103/GHC/Word.hs - testsuite/tests/rename/should_compile/T3103/test.T - testsuite/tests/rep-poly/RepPolyRecordPattern.hs - testsuite/tests/rep-poly/RepPolyRecordPattern.stderr - testsuite/tests/rep-poly/RepPolyRecordUpdate.stderr - testsuite/tests/rep-poly/T20113.stderr - − testsuite/tests/rep-poly/T20363.stderr - − testsuite/tests/rep-poly/T20363_show_co.hs - − testsuite/tests/rep-poly/T20363_show_co.stderr - − testsuite/tests/rep-poly/T20363b.stderr - + testsuite/tests/rep-poly/T20363c.hs - testsuite/tests/rep-poly/all.T - testsuite/tests/roles/should_compile/Roles1.stderr - testsuite/tests/roles/should_compile/Roles13.stderr - testsuite/tests/roles/should_compile/Roles14.stderr - testsuite/tests/roles/should_compile/Roles2.stderr - testsuite/tests/roles/should_compile/Roles3.stderr - testsuite/tests/roles/should_compile/Roles4.stderr - testsuite/tests/roles/should_compile/T8958.stderr - + testsuite/tests/rts/T27585.hs - + testsuite/tests/rts/T27585.stdout - testsuite/tests/rts/all.T - + testsuite/tests/show-bytecode/Example.hs - + testsuite/tests/show-bytecode/Makefile - + testsuite/tests/show-bytecode/all.T - + testsuite/tests/show-bytecode/normalize - + testsuite/tests/show-bytecode/show-bytecode-breakpoints.stdout - + testsuite/tests/show-bytecode/show-bytecode-breakpoints.stdout-javascript-unknown-ghcjs - + testsuite/tests/show-bytecode/show-bytecode-hpc.stdout - + testsuite/tests/show-bytecode/show-bytecode-vanilla.stdout - + testsuite/tests/show-bytecode/show-bytecode-vanilla.stdout-javascript-unknown-ghcjs - testsuite/tests/simplCore/should_compile/OpaqueNoCastWW.stderr - testsuite/tests/simplCore/should_compile/T13543.stderr - testsuite/tests/simplCore/should_compile/T16038/T16038.stdout - testsuite/tests/simplCore/should_compile/T24229a.stderr - testsuite/tests/simplCore/should_compile/T24229b.stderr - testsuite/tests/simplCore/should_compile/T3717.stderr - testsuite/tests/simplCore/should_compile/T3772.stdout - testsuite/tests/simplCore/should_compile/T4081.stderr - testsuite/tests/simplCore/should_compile/T4908.stderr - testsuite/tests/simplCore/should_compile/T4930.stderr - testsuite/tests/simplCore/should_compile/T7360.stderr - testsuite/tests/simplCore/should_compile/T8274.stdout - testsuite/tests/simplCore/should_compile/T9400.stderr - testsuite/tests/simplCore/should_compile/noinline01.stderr - testsuite/tests/simplCore/should_compile/par01.stderr - testsuite/tests/simplCore/should_compile/rule2.stderr - testsuite/tests/simplCore/should_compile/str-rules.hs - testsuite/tests/tcplugins/ArgsPlugin.hs - testsuite/tests/tcplugins/EmitWantedPlugin.hs - testsuite/tests/tcplugins/RewritePlugin.hs - testsuite/tests/tcplugins/T26395_Plugin.hs - testsuite/tests/tcplugins/TyFamPlugin.hs - + testsuite/tests/th/AssocDefaultNotAssoc.hs - + testsuite/tests/th/AssocDefaultNotAssoc.stderr - testsuite/tests/th/T14741.hs - testsuite/tests/th/T21547.stderr - testsuite/tests/th/T26568.stderr - + testsuite/tests/th/T27013th.hs - + testsuite/tests/th/TH_InvalidTopDecl.hs - + testsuite/tests/th/TH_InvalidTopDecl.stderr - testsuite/tests/th/TH_Roles2.stderr - + testsuite/tests/th/TH_cvt_DefaultDataInstDecl.hs - + testsuite/tests/th/TH_cvt_DefaultDataInstDecl.stderr - + testsuite/tests/th/TH_cvt_GadtNoCons.hs - + testsuite/tests/th/TH_cvt_GadtNoCons.stderr - + testsuite/tests/th/TH_cvt_IllegalDeclaration.hs - + testsuite/tests/th/TH_cvt_IllegalDeclaration.stderr - + testsuite/tests/th/TH_cvt_IllegalSumAlt.hs - + testsuite/tests/th/TH_cvt_IllegalSumAlt.stderr - + testsuite/tests/th/TH_cvt_InvalidCCallImpent.hs - + testsuite/tests/th/TH_cvt_InvalidCCallImpent.stderr - + testsuite/tests/th/TH_cvt_InvalidTyFamInstLHS.hs - + testsuite/tests/th/TH_cvt_InvalidTyFamInstLHS.stderr - + testsuite/tests/th/TH_cvt_InvalidTypeInstanceHeader.hs - + testsuite/tests/th/TH_cvt_InvalidTypeInstanceHeader.stderr - + testsuite/tests/th/TH_cvt_RecGadtNoCons.hs - + testsuite/tests/th/TH_cvt_RecGadtNoCons.stderr - + testsuite/tests/th/TH_cvt_SumAltArityExceeded.hs - + testsuite/tests/th/TH_cvt_SumAltArityExceeded.stderr - + testsuite/tests/th/TH_pragmaSpecOld.hs - + testsuite/tests/th/TH_pragmaSpecOld.stderr - testsuite/tests/th/all.T - testsuite/tests/typecheck/should_compile/T13032.stderr - testsuite/tests/typecheck/should_compile/T14273.stderr - testsuite/tests/typecheck/should_compile/T18406b.stderr - testsuite/tests/typecheck/should_compile/T18529.stderr - testsuite/tests/typecheck/should_compile/holes.stderr - testsuite/tests/typecheck/should_compile/holes2.stderr - testsuite/tests/typecheck/should_compile/holes3.stderr - testsuite/tests/typecheck/should_compile/subsumption_sort_hole_fits.stderr - testsuite/tests/typecheck/should_compile/valid_hole_fits.stderr - testsuite/tests/typecheck/should_fail/T12921.stderr - testsuite/tests/typecheck/should_fail/T14884.stderr - testsuite/tests/typecheck/should_fail/T15883b.stderr - testsuite/tests/typecheck/should_fail/T15883c.stderr - testsuite/tests/typecheck/should_fail/T15883d.stderr - testsuite/tests/typecheck/should_fail/T21130.stderr - testsuite/tests/typecheck/should_fail/T3323.stderr - testsuite/tests/typecheck/should_fail/T5095.stderr - testsuite/tests/typecheck/should_fail/T7279.stderr - testsuite/tests/typecheck/should_fail/TcStaticPointersFail02.stderr - testsuite/tests/typecheck/should_fail/TyAppPat_PatternBindingExistential.stderr - testsuite/tests/typecheck/should_fail/tcfail072.stderr - testsuite/tests/typecheck/should_fail/tcfail097.stderr - testsuite/tests/typecheck/should_fail/tcfail133.stderr - testsuite/tests/typecheck/should_run/T22510.stdout - testsuite/tests/unboxedsums/UbxSumLevPoly.hs - testsuite/tests/unboxedsums/unboxedsums_unit_tests.hs - testsuite/tests/warnings/should_compile/DerivingTypeable.stderr - utils/check-exact/ExactPrint.hs - utils/check-exact/Main.hs - utils/check-exact/Transform.hs - utils/check-exact/Utils.hs - utils/genprimopcode/Main.hs - utils/haddock/haddock-api/src/Haddock/Convert.hs - utils/haddock/haddock-api/src/Haddock/GhcUtils.hs - utils/haddock/haddock-api/src/Haddock/Interface.hs - utils/haddock/haddock-api/src/Haddock/Interface/AttachInstances.hs - utils/haddock/haddock-api/src/Haddock/Interface/Create.hs - utils/haddock/haddock-api/src/Haddock/Interface/Rename.hs - utils/haddock/haddock-api/src/Haddock/Types.hs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/326dac4903d8e93b0f05a1cdfb00aa… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/326dac4903d8e93b0f05a1cdfb00aa… You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc][wip/jeltsch/stm-exception-improvements] 11 commits: Allow rewriting in RuntimeReps for newtype ConPats
by Wolfgang Jeltsch (＠jeltsch) 14 Aug '26

14 Aug '26

Wolfgang Jeltsch pushed to branch wip/jeltsch/stm-exception-improvements at Glasgow Haskell Compiler / GHC Commits: c77d88fc by sheaf at 2026-08-13T10:15:22-04:00 Allow rewriting in RuntimeReps for newtype ConPats This commit implements PHASE 2 of the FixedRuntimeRep plan described in Note [The Concrete mechanism] in GHC.Tc.Utils.Concrete for newtype constructor patterns. In short, GHC now accepts programs of the form f (MkN x) = ... in which the argument 'x' of the newtype constructor pattern 'MkN x' has a representation that is not syntactically concrete, e.g. it can be 'Id IntRep' reducing to 'IntRep'. See T20363{,b,c} for examples. There are two main parts to the implementation: 1. Typechecking, in GHC.Tc.Gen.Pat.tcDataConPat. See Note [Typechecking newtype constructor patterns] in GHC.Tc.Gen.Pat. 2. Desugaring. We restructure the code for desugaring pattern matches by allowing the scrutinised match variable to be casted. This allows us to accumulate coercions and avoids creating binders at intermediate types tha don't have a fixed RuntimeRep. See the revamped Note [Match Ids] in GHC.HsToCore.Monad. Fixes #20363 ------------------------- Metric Increase: InstanceMatching ------------------------- - - - - - 6ba9dd41 by Wolfgang Jeltsch at 2026-08-13T10:16:07-04:00 Improve the documentation of `--show-iface` This change in particular gets rid of the claim that `--show-iface` writes *the* contents of the interface file in question. It doesn’t do that; it only writes those parts that are likely of interest to a human reader. - - - - - 4bd193fa by Sylvain Henry at 2026-08-13T10:17:00-04:00 RTS: fix LDV profiler's slop skipping (#27585) processHeapForDead was the one heap scanner not updated for the slop marker encoding introduced in #19048. It still assumed slop is zeroed: while (p < bd->free && !*p) p++; // skip slop so it stopped at the (StgWord)(-1) sentinel and passed it to processHeapClosureForDead. IS_FORWARDING_PTR(-1) holds, hence a garbage size was read out of LDVW and the scan ran off the block, tripping ASSERT(p == bd->free) on a debug RTS and silently corrupting the census otherwise. The loop was hand-copied in four places, so factor it out into skipSlop in ClosureMacros.h and use it in ProfHeap.c, Sanity.c, Printer.c and LdvProfile.c. Co-Authored-By: Claude Opus 5 (1M context) <noreply(a)anthropic.com> - - - - - 1446bb03 by Zubin Duggal at 2026-08-13T10:17:48-04:00 hadrian: Fix links to remaining doc sites to not use the package hash for haddock links In 07267f79d91169f474cacc8bcd38d76a6e97887d we changed hadrian to not include the package hash in the haddock directory. This patch takes care of a few remaining links that were missed in that patch Fixes #27671 - - - - - 257c3ed7 by Simon Jakobi at 2026-08-13T10:18:29-04:00 Testsuite: widen InstanceMatching acceptance window to 5% (#27673) ...in order to unblock CI. Assisted-by: Claude Fable 5 - - - - - e4cfaaa0 by Simon Peyton Jones at 2026-08-14T01:09:32+02:00 Major patch to re-engineer known-key names This big patch implements the New Plan for known-key names, described in #27013. Read the big Note [Overview of known-key names] in GHC.Types.Name Some things had to be reworked slightly to accomodate the new known-keys design. A significant one was the generation of auxiliary KindRep bindings, which was greatly simplified. Note [Grand plan for Typeable] was updated accordingly. Another example: GHC.Internal.CString was merged into GHC.Internal.Types. Co-authored-by: Rodrigo Mesquita <rodrigo.m.mesquita(a)gmail.com> The couple hundreds of hours spent here by Rodrigo were sponsored by Well-Typed Metrics: compile_time/bytes allocated ------------------------------------- Baseline Test Metric value New value Change ------------------------------------------------------------------------------------------ MultiComponentModules100(normal) ghc/alloc 24,312,779,672 24,990,470,432 +2.8% BAD MultiComponentModulesRecomp(normal) ghc/alloc 601,924,960 621,884,888 +3.3% BAD MultiComponentModulesRecomp100(normal) ghc/alloc 11,884,065,432 12,531,373,704 +5.4% BAD MultiLayerModules(normal) ghc/alloc 3,861,537,072 3,706,919,512 -4.0% GOOD T13701(normal) ghc/alloc 3,517,246,392 3,237,179,616 -8.0% GOOD T13820(normal) ghc/alloc 28,961,056 29,663,208 +2.4% BAD T14697(normal) ghc/alloc 472,044,184 443,550,048 -6.0% GOOD T18140(normal) ghc/alloc 47,905,664 49,115,808 +2.5% BAD T4801(normal) ghc/alloc 269,339,096 263,432,040 -2.2% GOOD T783(normal) ghc/alloc 341,112,672 333,339,952 -2.3% GOOD hard_hole_fits(normal) ghc/alloc 222,164,728 213,433,808 -3.9% GOOD mhu-perf(normal) ghc/alloc 49,011,440 46,706,280 -4.7% GOOD geo. mean +0.1% minimum -8.0% maximum +5.4% All performance regressions were investigated in depth. The surviving ones: - MultiComponentModules100, MultiComponentModulesRecomp100, MultiComponentModulesRecomp regresses because existing bugs that make an additional implicit edge do too much redundant work: #27053 and #27461 - T13820, T18140, T10547, T13035 regress because we load an additional interface and associated Names for GHC.Essentials. ------------------------- Metric Decrease: MultiLayerModules T13379 T13701 T14697 T26989 T4801 T783 T9961 hard_hole_fits mhu-perf size_hello_artifact size_hello_obj size_hello_unicode Metric Increase: LinkableUsage01 LinkableUsage02 MultiComponentModules100 MultiComponentModulesRecomp MultiComponentModulesRecomp100 T10547 T13035 T13820 T18140 T18698a T18698b T20049 ------------------------- Bumps submodule binary Closes #27013 - - - - - 61665e79 by sheaf at 2026-08-14T01:09:33+02:00 Allow GHC.Essentials to be hidden This commit overhauls several aspects of the known entity handling, in order to allow GHC.Essentials to be hidden without a proliferation of special cases in the compiler. The main contribution is to introduce the 'UnresolvedImport' datatype which cleans up a lot of ad-hoc handling relating to 'ModSummary', fixing #27603. This allows us to reduce duplication, e.g. by having Backpack reuse 'mkUnresolvedImports' instead of replicating the "add implicit imports" logic. It also makes it easier to avoid undesirable edge cases (such as making sure that the Template Haskell 'reifyModule' function does not leak the implicit GHC.Essentials import). In particular, the infamous 'findImportedModuleWithIsBoot' is now simply 'resolveImport', taking a single 'UnresolvedImport' and resolving it to a 'FindResult' (usually a 'Module'). Other changes: - Cache the result of looking up GHC.Essentials (in TcM and DsM environments) to avoid redundant work. This reduces allocations on LinkableUsage01 and hard_hole_fits. - Properly look up known entities for StaticPointers like we do for other known entities everywhere else. This allows e.g. modules in ghc-internal to use -XStaticPointers. - When using multiple home units, we are now careful to handle the situation in which we may have multiple GHC.Essentials modules around. See the new tests under 'driver/multipleHomeUnits'. - - - - - b19fcc1c by Vladislav Zavialov at 2026-08-14T06:26:11-04:00 Increase test coverage of diagnostics, batch 2 Add test cases for the previously untested diagnostics: [GHC-26133] TcRnForeignImportPrimSafeAnn [GHC-68444] SumAltArityExceeded [GHC-63966] IllegalSumAlt [GHC-23882] IllegalDeclaration [GHC-60220] InvalidCCallImpent [GHC-18816] RecGadtNoCons [GHC-38140] GadtNoCons [GHC-37056] InvalidTypeInstanceHeader [GHC-78486] InvalidTyFamInstLHS [GHC-39639] DefaultDataInstDecl [GHC-78822] AssocDefaultNotAssoc [GHC-43510] NotSimpleUnliftedType [GHC-41843] IOResultExpected [GHC-07641] AtLeastOneArgExpected [GHC-52886] InvalidTopDecl Remove unused error constructors: [GHC-92057] ImportLookupAmbiguous - - - - - 7b27f25a by Simon Jakobi at 2026-08-14T06:26:54-04:00 testsuite: Drop peak_megabytes_allocated from LinkableUsage tests LinkableUsage01/02 collected all metrics with a 2% tolerance. For peak_megabytes_allocated, whose granularity is 1 MB, that window is under 0.7 MB at this test's ~34 MB peak, so any 1 MB step failed the test (#27613, #27489). Drop that metric: max_bytes_used guards the Linkable-retention property with byte granularity, at a tolerance that still comfortably exceeds the noise observed in CI. Assisted-by: Claude Fable 5 - - - - - e5de423b by Simon Jakobi at 2026-08-14T06:26:54-04:00 testsuite: Don't truncate fractional baselines when computing bounds RelativeMetricAcceptanceWindow.get_bounds truncated the baseline with int() before applying the tolerance. Baselines can be fractional (they are averaged over several measurements), so this skewed the acceptance window downwards: in #27613, a baseline of 33.67 at 2% tolerance yielded bounds (32, 34) instead of (32, 35), rejecting a measurement that was within tolerance. Assisted-by: Claude Fable 5 - - - - - 268ec236 by Wolfgang Jeltsch at 2026-08-14T17:20:49+03:00 Add `rethrowSTM` and improve STM-related documentation Adding `rethrowSTM` resolves #26758. The implementation of `rethrowSTM` is completely analogous to the one of `rethrowIO`. The following is established for the documentation of `throwSTM` and `catchSTM`: * Both operations are directly described as analogs of their `IO` counterparts. * There is no reference to `throw` in the documentation of `throwSTM`, because, although such a reference is great in the documentation of `throwIO`, it is somewhat out of place in the documentation of `throwSTM`. * Instead of repeating part of `throwIO`’s documentation, the documentation of `throwSTM` just recommends using `throwSTM` instead of `throw` and references the corresponding arguments in the documentation of `throwIO`. - - - - - 863 changed files: - + changelog.d/T20363 - changelog.d/fix-heap-census-large-arrays-19048 - + changelog.d/refactor-known-names - + changelog.d/rethrow-stm - compiler/GHC.hs - + compiler/GHC/Builtin.hs - + compiler/GHC/Builtin/KnownKeys.hs - + compiler/GHC/Builtin/KnownOccs.hs - + compiler/GHC/Builtin/Modules.hs - − compiler/GHC/Builtin/Names.hs - − compiler/GHC/Builtin/Names/TH.hs - compiler/GHC/Builtin/PrimOps.hs - compiler/GHC/Builtin/PrimOps/Casts.hs - compiler/GHC/Builtin/PrimOps/Ids.hs - + compiler/GHC/Builtin/TH.hs - compiler/GHC/Builtin/Uniques.hs - compiler/GHC/Builtin/Uniques.hs-boot - − compiler/GHC/Builtin/Utils.hs - + compiler/GHC/Builtin/WiredIn/Ids.hs - compiler/GHC/Builtin/Types/Prim.hs → compiler/GHC/Builtin/WiredIn/Prim.hs - compiler/GHC/Builtin/Types/Literals.hs → compiler/GHC/Builtin/WiredIn/TypeLits.hs - compiler/GHC/Builtin/Types.hs → compiler/GHC/Builtin/WiredIn/Types.hs - compiler/GHC/Builtin/Types.hs-boot → compiler/GHC/Builtin/WiredIn/Types.hs-boot - compiler/GHC/ByteCode/Asm.hs - compiler/GHC/Core.hs - compiler/GHC/Core/Coercion.hs - compiler/GHC/Core/DataCon.hs - compiler/GHC/Core/FVs.hs - compiler/GHC/Core/FamInstEnv.hs - compiler/GHC/Core/Lint.hs - compiler/GHC/Core/Make.hs - compiler/GHC/Core/Multiplicity.hs - compiler/GHC/Core/Opt/Arity.hs - compiler/GHC/Core/Opt/ConstantFold.hs - compiler/GHC/Core/Opt/CprAnal.hs - compiler/GHC/Core/Opt/DmdAnal.hs - compiler/GHC/Core/Opt/LiberateCase.hs - compiler/GHC/Core/Opt/OccurAnal.hs - compiler/GHC/Core/Opt/SetLevels.hs - compiler/GHC/Core/Opt/Simplify/Env.hs - compiler/GHC/Core/Opt/Simplify/Iteration.hs - compiler/GHC/Core/Opt/SpecConstr.hs - compiler/GHC/Core/Opt/Specialise.hs - compiler/GHC/Core/Opt/WorkWrap/Utils.hs - compiler/GHC/Core/Ppr.hs - compiler/GHC/Core/Predicate.hs - compiler/GHC/Core/Rules.hs - compiler/GHC/Core/SimpleOpt.hs - compiler/GHC/Core/Subst.hs - compiler/GHC/Core/TyCo/FVs.hs - compiler/GHC/Core/TyCo/Rep.hs - compiler/GHC/Core/TyCon.hs - compiler/GHC/Core/Type.hs - compiler/GHC/Core/Unfold.hs - compiler/GHC/Core/Unify.hs - compiler/GHC/Core/Utils.hs - compiler/GHC/CoreToIface.hs - compiler/GHC/CoreToStg.hs - compiler/GHC/CoreToStg/Prep.hs - compiler/GHC/Driver/Backpack.hs - compiler/GHC/Driver/Config/Tidy.hs - compiler/GHC/Driver/Downsweep.hs - compiler/GHC/Driver/DynFlags.hs - compiler/GHC/Driver/Env.hs - compiler/GHC/Driver/Env/KnotVars.hs - compiler/GHC/Driver/Env/Types.hs - compiler/GHC/Driver/Flags.hs - compiler/GHC/Driver/Main/Hsc.hs - compiler/GHC/Driver/Main/Passes.hs - compiler/GHC/Driver/Make.hs - compiler/GHC/Driver/MakeFile.hs - compiler/GHC/Driver/Pipeline.hs - compiler/GHC/Driver/Pipeline/Execute.hs - compiler/GHC/Driver/Plugins.hs - compiler/GHC/Driver/Session.hs - compiler/GHC/Hs/Expr.hs - compiler/GHC/Hs/ImpExp.hs - compiler/GHC/Hs/Lit.hs - compiler/GHC/Hs/Pat.hs - compiler/GHC/Hs/Syn/Type.hs - compiler/GHC/Hs/Type.hs - compiler/GHC/Hs/Utils.hs - compiler/GHC/HsToCore.hs - compiler/GHC/HsToCore/Arrows.hs - compiler/GHC/HsToCore/Binds.hs - compiler/GHC/HsToCore/Expr.hs - compiler/GHC/HsToCore/Foreign/C.hs - compiler/GHC/HsToCore/Foreign/Call.hs - compiler/GHC/HsToCore/Foreign/JavaScript.hs - compiler/GHC/HsToCore/Foreign/Utils.hs - compiler/GHC/HsToCore/Foreign/Wasm.hs - compiler/GHC/HsToCore/ListComp.hs - compiler/GHC/HsToCore/Match.hs - compiler/GHC/HsToCore/Match.hs-boot - compiler/GHC/HsToCore/Match/Constructor.hs - compiler/GHC/HsToCore/Match/Literal.hs - compiler/GHC/HsToCore/Monad.hs - compiler/GHC/HsToCore/Pmc/Check.hs - compiler/GHC/HsToCore/Pmc/Desugar.hs - compiler/GHC/HsToCore/Pmc/Ppr.hs - compiler/GHC/HsToCore/Pmc/Solver.hs - compiler/GHC/HsToCore/Pmc/Solver/Types.hs - compiler/GHC/HsToCore/Quote.hs - compiler/GHC/HsToCore/Types.hs - compiler/GHC/HsToCore/Usage.hs - compiler/GHC/HsToCore/Utils.hs - compiler/GHC/Iface/Binary.hs - compiler/GHC/Iface/Env.hs - − compiler/GHC/Iface/Env.hs-boot - compiler/GHC/Iface/Errors/Ppr.hs - compiler/GHC/Iface/Errors/Types.hs - compiler/GHC/Iface/Ext/Ast.hs - compiler/GHC/Iface/Load.hs - compiler/GHC/Iface/Make.hs - compiler/GHC/Iface/Recomp.hs - compiler/GHC/Iface/Syntax.hs - compiler/GHC/Iface/Tidy.hs - compiler/GHC/Iface/Type.hs - compiler/GHC/IfaceToCore.hs - compiler/GHC/Parser.y - compiler/GHC/Parser/Annotation.hs - compiler/GHC/Parser/Errors/Ppr.hs - compiler/GHC/Parser/Header.hs - compiler/GHC/Parser/PostProcess.hs - compiler/GHC/Plugins.hs - compiler/GHC/Rename/Env.hs - compiler/GHC/Rename/Expr.hs - compiler/GHC/Rename/HsType.hs - compiler/GHC/Rename/Lit.hs - compiler/GHC/Rename/Module.hs - compiler/GHC/Rename/Names.hs - compiler/GHC/Rename/Pat.hs - compiler/GHC/Rename/Splice.hs - compiler/GHC/Rename/Unbound.hs - compiler/GHC/Rename/Utils.hs - compiler/GHC/Runtime/Context.hs - compiler/GHC/Runtime/Debugger.hs - compiler/GHC/Runtime/Eval.hs - compiler/GHC/Runtime/Heap/Inspect.hs - compiler/GHC/Runtime/Interpreter.hs - compiler/GHC/Runtime/Loader.hs - compiler/GHC/Stg/BcPrep.hs - compiler/GHC/Stg/Unarise.hs - compiler/GHC/StgToByteCode.hs - compiler/GHC/StgToCmm/Bind.hs - compiler/GHC/StgToCmm/DataCon.hs - compiler/GHC/StgToCmm/Env.hs - compiler/GHC/StgToCmm/Foreign.hs - compiler/GHC/StgToCmm/Lit.hs - compiler/GHC/StgToCmm/Ticky.hs - compiler/GHC/StgToJS/Apply.hs - compiler/GHC/StgToJS/Arg.hs - compiler/GHC/StgToJS/Expr.hs - compiler/GHC/StgToJS/FFI.hs - compiler/GHC/StgToJS/Linker/Utils.hs - compiler/GHC/StgToJS/Utils.hs - compiler/GHC/Tc/Deriv.hs - compiler/GHC/Tc/Deriv/Functor.hs - compiler/GHC/Tc/Deriv/Generate.hs - compiler/GHC/Tc/Deriv/Generics.hs - compiler/GHC/Tc/Deriv/Infer.hs - compiler/GHC/Tc/Deriv/Utils.hs - compiler/GHC/Tc/Errors.hs - compiler/GHC/Tc/Errors/Hole.hs - compiler/GHC/Tc/Errors/Ppr.hs - compiler/GHC/Tc/Errors/Types.hs - compiler/GHC/Tc/Gen/App.hs - compiler/GHC/Tc/Gen/Arrow.hs - compiler/GHC/Tc/Gen/Bind.hs - compiler/GHC/Tc/Gen/Default.hs - compiler/GHC/Tc/Gen/Export.hs - compiler/GHC/Tc/Gen/Expr.hs - compiler/GHC/Tc/Gen/Foreign.hs - compiler/GHC/Tc/Gen/Head.hs - compiler/GHC/Tc/Gen/HsType.hs - compiler/GHC/Tc/Gen/Match.hs - compiler/GHC/Tc/Gen/Pat.hs - compiler/GHC/Tc/Gen/Sig.hs - compiler/GHC/Tc/Gen/Splice.hs - compiler/GHC/Tc/Instance/Class.hs - compiler/GHC/Tc/Instance/FunDeps.hs - compiler/GHC/Tc/Instance/Typeable.hs - compiler/GHC/Tc/Module.hs - compiler/GHC/Tc/Plugin.hs - compiler/GHC/Tc/Solver.hs - compiler/GHC/Tc/Solver/Default.hs - compiler/GHC/Tc/Solver/Dict.hs - compiler/GHC/Tc/Solver/FunDeps.hs - compiler/GHC/Tc/Solver/InertSet.hs - compiler/GHC/Tc/Solver/Monad.hs - compiler/GHC/Tc/Solver/Rewrite.hs - compiler/GHC/Tc/TyCl.hs - compiler/GHC/Tc/TyCl/Build.hs - compiler/GHC/Tc/TyCl/Instance.hs - compiler/GHC/Tc/TyCl/PatSyn.hs - compiler/GHC/Tc/TyCl/Utils.hs - compiler/GHC/Tc/Types.hs - compiler/GHC/Tc/Types/Constraint.hs - compiler/GHC/Tc/Types/Evidence.hs - compiler/GHC/Tc/Types/LclEnv.hs - compiler/GHC/Tc/Types/Origin.hs - compiler/GHC/Tc/Utils/Backpack.hs - compiler/GHC/Tc/Utils/Concrete.hs - compiler/GHC/Tc/Utils/Env.hs - compiler/GHC/Tc/Utils/Instantiate.hs - compiler/GHC/Tc/Utils/Monad.hs - compiler/GHC/Tc/Utils/TcMType.hs - compiler/GHC/Tc/Utils/TcType.hs - compiler/GHC/Tc/Utils/Unify.hs - compiler/GHC/Tc/Validity.hs - compiler/GHC/Tc/Zonk/Type.hs - compiler/GHC/ThToHs.hs - compiler/GHC/Types/DefaultEnv.hs - compiler/GHC/Types/Error/Codes.hs - compiler/GHC/Types/Hint.hs - compiler/GHC/Types/Hint/Ppr.hs - compiler/GHC/Types/Id/Make.hs - compiler/GHC/Types/Literal.hs - compiler/GHC/Types/Name.hs - compiler/GHC/Types/Name/Cache.hs - compiler/GHC/Types/Name/Ppr.hs - compiler/GHC/Types/Name/Reader.hs - compiler/GHC/Types/RepType.hs - compiler/GHC/Types/TyThing.hs - compiler/GHC/Types/Unique.hs - compiler/GHC/Types/Unique/FM.hs - + compiler/GHC/Types/UnresolvedImport.hs - compiler/GHC/Types/Var.hs - compiler/GHC/Unit.hs - compiler/GHC/Unit/External.hs - compiler/GHC/Unit/External/Index.hs - compiler/GHC/Unit/External/ModuleOrigin.hs - compiler/GHC/Unit/External/Providers.hs - compiler/GHC/Unit/Finder.hs - compiler/GHC/Unit/Finder/Types.hs - compiler/GHC/Unit/Module/Deps.hs - compiler/GHC/Unit/Module/ModSummary.hs - compiler/GHC/Unit/State.hs - compiler/GHC/Unit/Types.hs - compiler/GHC/Utils/Binary.hs - − compiler/GHC/Utils/Binary/Typeable.hs - compiler/Language/Haskell/Syntax/Expr.hs - compiler/ghc.cabal.in - docs/index.html.in - docs/users_guide/ghc_config.py.in - docs/users_guide/separate_compilation.rst - docs/users_guide/using.rst - ghc/GHCi/UI.hs - ghc/GHCi/UI/Monad.hs - ghc/Main.hs - hadrian/src/Rules/Generate.hs - libraries/base/base.cabal.in - libraries/base/src/Control/Applicative.hs - libraries/base/src/Control/Concurrent.hs - libraries/base/src/Control/Concurrent/Chan.hs - libraries/base/src/Control/Concurrent/QSem.hs - libraries/base/src/Control/Concurrent/QSemN.hs - libraries/base/src/Data/Array/Byte.hs - libraries/base/src/Data/Bifoldable.hs - libraries/base/src/Data/Bifoldable1.hs - libraries/base/src/Data/Bifunctor.hs - libraries/base/src/Data/Bitraversable.hs - libraries/base/src/Data/Bool.hs - libraries/base/src/Data/Complex.hs - libraries/base/src/Data/Data.hs - libraries/base/src/Data/Enum.hs - libraries/base/src/Data/Fixed.hs - libraries/base/src/Data/Foldable1.hs - libraries/base/src/Data/Functor/Classes.hs - libraries/base/src/Data/Functor/Compose.hs - libraries/base/src/Data/Functor/Contravariant.hs - libraries/base/src/Data/Functor/Product.hs - libraries/base/src/Data/Functor/Sum.hs - libraries/base/src/Data/List.hs - libraries/base/src/Data/List/NonEmpty.hs - libraries/base/src/Data/List/NubOrdSet.hs - libraries/base/src/Data/Semigroup.hs - libraries/base/src/Data/Version.hs - libraries/base/src/GHC/Base.hs - libraries/base/src/GHC/ByteOrder.hs - libraries/base/src/GHC/Conc.hs - + libraries/base/src/GHC/Essentials.hs - libraries/base/src/GHC/Exts.hs - libraries/base/src/GHC/Fingerprint.hs - libraries/base/src/GHC/RTS/Flags.hs - libraries/base/src/GHC/ResponseFile.hs - libraries/base/src/GHC/Stats.hs - libraries/base/src/GHC/Weak/Finalize.hs - libraries/base/src/Numeric.hs - libraries/base/src/Prelude.hs - libraries/base/src/System/CPUTime/Posix/ClockGetTime.hsc - libraries/base/src/System/CPUTime/Posix/RUsage.hsc - libraries/base/src/System/CPUTime/Posix/Times.hsc - libraries/base/src/System/CPUTime/Unsupported.hs - libraries/base/src/System/Console/GetOpt.hs - libraries/base/src/System/Exit.hs - libraries/base/src/System/IO.hs - libraries/base/src/System/IO/OS.hs - libraries/base/src/System/IO/Unsafe.hs - libraries/base/src/System/Info.hs - libraries/base/src/System/Timeout.hs - libraries/base/src/Text/Printf.hs - libraries/base/src/Text/Read.hs - libraries/base/src/Text/Show/Functions.hs - libraries/binary - libraries/ghc-experimental/src/Data/Sum/Experimental.hs - libraries/ghc-experimental/src/Data/Tuple/Experimental.hs - libraries/ghc-experimental/src/GHC/Profiling/Eras.hs - libraries/ghc-experimental/src/Prelude/Experimental.hs - libraries/ghc-internal/codepages/MakeTable.hs - libraries/ghc-internal/ghc-internal.cabal.in - libraries/ghc-internal/include/RtsIfaceSymbols.h - libraries/ghc-internal/src/GHC/Internal/AllocationLimitHandler.hs - libraries/ghc-internal/src/GHC/Internal/Arr.hs - libraries/ghc-internal/src/GHC/Internal/ArrayArray.hs - libraries/ghc-internal/src/GHC/Internal/Base.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Backend.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Backend/GMP.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Backend/Native.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/BigNat.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/BigNat.hs-boot - libraries/ghc-internal/src/GHC/Internal/Bignum/Integer.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Integer.hs-boot - libraries/ghc-internal/src/GHC/Internal/Bignum/Natural.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/Natural.hs-boot - libraries/ghc-internal/src/GHC/Internal/Bignum/Primitives.hs - libraries/ghc-internal/src/GHC/Internal/Bignum/WordArray.hs - libraries/ghc-internal/src/GHC/Internal/Bits.hs - libraries/ghc-internal/src/GHC/Internal/ByteOrder.hs - libraries/ghc-internal/src/GHC/Internal/CString.hs - libraries/ghc-internal/src/GHC/Internal/Char.hs - libraries/ghc-internal/src/GHC/Internal/Classes.hs - libraries/ghc-internal/src/GHC/Internal/Classes/IP.hs - libraries/ghc-internal/src/GHC/Internal/Clock.hsc - libraries/ghc-internal/src/GHC/Internal/ClosureTypes.hs - libraries/ghc-internal/src/GHC/Internal/Conc/Bound.hs - libraries/ghc-internal/src/GHC/Internal/Conc/IO.hs - libraries/ghc-internal/src/GHC/Internal/Conc/POSIX.hs - libraries/ghc-internal/src/GHC/Internal/Conc/POSIX/Const.hsc - libraries/ghc-internal/src/GHC/Internal/Conc/Signal.hs - libraries/ghc-internal/src/GHC/Internal/Conc/Sync.hs - libraries/ghc-internal/src/GHC/Internal/ConsoleHandler.hsc - libraries/ghc-internal/src/GHC/Internal/Control/Arrow.hs - libraries/ghc-internal/src/GHC/Internal/Control/Category.hs - libraries/ghc-internal/src/GHC/Internal/Control/Concurrent/MVar.hs - libraries/ghc-internal/src/GHC/Internal/Control/Exception.hs - libraries/ghc-internal/src/GHC/Internal/Control/Exception/Base.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fail.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fix.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/IO/Class.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST/Imp.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST/Lazy.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST/Lazy/Imp.hs - libraries/ghc-internal/src/GHC/Internal/Control/Monad/Zip.hs - libraries/ghc-internal/src/GHC/Internal/Data/Bits.hs - libraries/ghc-internal/src/GHC/Internal/Data/Coerce.hs - libraries/ghc-internal/src/GHC/Internal/Data/Data.hs - libraries/ghc-internal/src/GHC/Internal/Data/Dynamic.hs - libraries/ghc-internal/src/GHC/Internal/Data/Either.hs - libraries/ghc-internal/src/GHC/Internal/Data/Foldable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Function.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Const.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Identity.hs - libraries/ghc-internal/src/GHC/Internal/Data/Functor/Utils.hs - libraries/ghc-internal/src/GHC/Internal/Data/IORef.hs - libraries/ghc-internal/src/GHC/Internal/Data/List.hs - libraries/ghc-internal/src/GHC/Internal/Data/List/NonEmpty.hs - libraries/ghc-internal/src/GHC/Internal/Data/Maybe.hs - libraries/ghc-internal/src/GHC/Internal/Data/Monoid.hs - libraries/ghc-internal/src/GHC/Internal/Data/NonEmpty.hs - libraries/ghc-internal/src/GHC/Internal/Data/OldList.hs - libraries/ghc-internal/src/GHC/Internal/Data/Ord.hs - libraries/ghc-internal/src/GHC/Internal/Data/Proxy.hs - libraries/ghc-internal/src/GHC/Internal/Data/STRef.hs - libraries/ghc-internal/src/GHC/Internal/Data/Semigroup/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Data/String.hs - libraries/ghc-internal/src/GHC/Internal/Data/Traversable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Tuple.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Bool.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Coercion.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Equality.hs - libraries/ghc-internal/src/GHC/Internal/Data/Type/Ord.hs - libraries/ghc-internal/src/GHC/Internal/Data/Typeable.hs - libraries/ghc-internal/src/GHC/Internal/Data/Typeable/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Data/Unique.hs - libraries/ghc-internal/src/GHC/Internal/Data/Version.hs - libraries/ghc-internal/src/GHC/Internal/Data/Void.hs - libraries/ghc-internal/src/GHC/Internal/Debug/Trace.hs - libraries/ghc-internal/src/GHC/Internal/Desugar.hs - libraries/ghc-internal/src/GHC/Internal/Encoding/UTF8.hs - libraries/ghc-internal/src/GHC/Internal/Enum.hs - libraries/ghc-internal/src/GHC/Internal/Enum.hs-boot - libraries/ghc-internal/src/GHC/Internal/Environment.hs - libraries/ghc-internal/src/GHC/Internal/Err.hs - libraries/ghc-internal/src/GHC/Internal/Event/Arr.hs - libraries/ghc-internal/src/GHC/Internal/Event/Array.hs - libraries/ghc-internal/src/GHC/Internal/Event/Control.hs - libraries/ghc-internal/src/GHC/Internal/Event/EPoll.hsc - libraries/ghc-internal/src/GHC/Internal/Event/IntTable.hs - libraries/ghc-internal/src/GHC/Internal/Event/IntVar.hs - libraries/ghc-internal/src/GHC/Internal/Event/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Event/Internal/Types.hs - libraries/ghc-internal/src/GHC/Internal/Event/KQueue.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Manager.hs - libraries/ghc-internal/src/GHC/Internal/Event/PSQ.hs - libraries/ghc-internal/src/GHC/Internal/Event/Poll.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Thread.hs - libraries/ghc-internal/src/GHC/Internal/Event/TimeOut.hs - libraries/ghc-internal/src/GHC/Internal/Event/TimerManager.hs - libraries/ghc-internal/src/GHC/Internal/Event/Unique.hs - libraries/ghc-internal/src/GHC/Internal/Event/Windows.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Windows/Clock.hs - libraries/ghc-internal/src/GHC/Internal/Event/Windows/ConsoleEvent.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Windows/FFI.hsc - libraries/ghc-internal/src/GHC/Internal/Event/Windows/ManagedThreadPool.hs - libraries/ghc-internal/src/GHC/Internal/Event/Windows/Thread.hs - libraries/ghc-internal/src/GHC/Internal/Exception.hs - libraries/ghc-internal/src/GHC/Internal/Exception/Backtrace.hs - libraries/ghc-internal/src/GHC/Internal/Exception/Backtrace.hs-boot - libraries/ghc-internal/src/GHC/Internal/Exception/Context.hs - libraries/ghc-internal/src/GHC/Internal/Exception/Context.hs-boot - libraries/ghc-internal/src/GHC/Internal/Exception/Type.hs - libraries/ghc-internal/src/GHC/Internal/Exception/Type.hs-boot - libraries/ghc-internal/src/GHC/Internal/ExecutionStack.hs - libraries/ghc-internal/src/GHC/Internal/ExecutionStack/Internal.hsc - libraries/ghc-internal/src/GHC/Internal/Exts.hs - libraries/ghc-internal/src/GHC/Internal/Fingerprint.hs - libraries/ghc-internal/src/GHC/Internal/Fingerprint/Type.hs - libraries/ghc-internal/src/GHC/Internal/Float.hs - libraries/ghc-internal/src/GHC/Internal/Float/ConversionUtils.hs - libraries/ghc-internal/src/GHC/Internal/Float/RealFracMethods.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/ConstPtr.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/Error.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/String.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/String/Encoding.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/C/Types.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/ForeignPtr/Imp.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Alloc.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Array.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Error.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Pool.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Utils.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Ptr.hs - libraries/ghc-internal/src/GHC/Internal/Foreign/Storable.hs - libraries/ghc-internal/src/GHC/Internal/ForeignPtr.hs - libraries/ghc-internal/src/GHC/Internal/ForeignSrcLang.hs - libraries/ghc-internal/src/GHC/Internal/Functor/ZipList.hs - libraries/ghc-internal/src/GHC/Internal/GHCi.hs - libraries/ghc-internal/src/GHC/Internal/GHCi/Helpers.hs - libraries/ghc-internal/src/GHC/Internal/Generics.hs - libraries/ghc-internal/src/GHC/Internal/Heap/Closures.hs - libraries/ghc-internal/src/GHC/Internal/Heap/Constants.hsc - libraries/ghc-internal/src/GHC/Internal/Heap/InfoTable.hsc - libraries/ghc-internal/src/GHC/Internal/Heap/InfoTable/Types.hsc - libraries/ghc-internal/src/GHC/Internal/Heap/InfoTableProf.hsc - libraries/ghc-internal/src/GHC/Internal/Heap/ProfInfo/Types.hs - libraries/ghc-internal/src/GHC/Internal/IO.hs - libraries/ghc-internal/src/GHC/Internal/IO.hs-boot - libraries/ghc-internal/src/GHC/Internal/IO/Buffer.hs - libraries/ghc-internal/src/GHC/Internal/IO/BufferedIO.hs - libraries/ghc-internal/src/GHC/Internal/IO/Device.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/CodePage.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/CodePage/API.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/CodePage/Table.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Failure.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Iconv.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Latin1.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Types.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/UTF16.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/UTF32.hs - libraries/ghc-internal/src/GHC/Internal/IO/Encoding/UTF8.hs - libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs - libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs-boot - libraries/ghc-internal/src/GHC/Internal/IO/FD.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/FD.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Internals.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/Common.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/Flock.hsc - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/LinuxOFD.hsc - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/NoOp.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/Windows.hsc - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Text.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Types.hs - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Types.hs-boot - libraries/ghc-internal/src/GHC/Internal/IO/Handle/Windows.hs - libraries/ghc-internal/src/GHC/Internal/IO/IOMode.hs - libraries/ghc-internal/src/GHC/Internal/IO/SubSystem.hs - libraries/ghc-internal/src/GHC/Internal/IO/Unsafe.hs - libraries/ghc-internal/src/GHC/Internal/IO/Windows/Encoding.hs - libraries/ghc-internal/src/GHC/Internal/IO/Windows/Handle.hsc - libraries/ghc-internal/src/GHC/Internal/IOArray.hs - libraries/ghc-internal/src/GHC/Internal/IORef.hs - libraries/ghc-internal/src/GHC/Internal/InfoProv.hs - libraries/ghc-internal/src/GHC/Internal/InfoProv/Types.hsc - libraries/ghc-internal/src/GHC/Internal/Int.hs - libraries/ghc-internal/src/GHC/Internal/IsList.hs - libraries/ghc-internal/src/GHC/Internal/Ix.hs - libraries/ghc-internal/src/GHC/Internal/JS/Foreign/Callback.hs - libraries/ghc-internal/src/GHC/Internal/JS/Prim.hs - libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs - libraries/ghc-internal/src/GHC/Internal/Lexeme.hs - libraries/ghc-internal/src/GHC/Internal/List.hs - libraries/ghc-internal/src/GHC/Internal/MVar.hs - libraries/ghc-internal/src/GHC/Internal/Magic.hs - libraries/ghc-internal/src/GHC/Internal/Magic/Dict.hs - libraries/ghc-internal/src/GHC/Internal/Maybe.hs - libraries/ghc-internal/src/GHC/Internal/Num.hs - libraries/ghc-internal/src/GHC/Internal/Num.hs-boot - libraries/ghc-internal/src/GHC/Internal/Numeric.hs - libraries/ghc-internal/src/GHC/Internal/OverloadedLabels.hs - libraries/ghc-internal/src/GHC/Internal/Pack.hs - libraries/ghc-internal/src/GHC/Internal/Prim/Exception.hs - libraries/ghc-internal/src/GHC/Internal/Prim/Ext.hs - libraries/ghc-internal/src/GHC/Internal/Prim/Panic.hs - libraries/ghc-internal/src/GHC/Internal/Prim/PtrEq.hs - libraries/ghc-internal/src/GHC/Internal/Profiling.hs - libraries/ghc-internal/src/GHC/Internal/Ptr.hs - libraries/ghc-internal/src/GHC/Internal/RTS/Flags.hsc - libraries/ghc-internal/src/GHC/Internal/RTS/Flags/Test.hsc - libraries/ghc-internal/src/GHC/Internal/Read.hs - libraries/ghc-internal/src/GHC/Internal/Real.hs - libraries/ghc-internal/src/GHC/Internal/Real.hs-boot - libraries/ghc-internal/src/GHC/Internal/Records.hs - libraries/ghc-internal/src/GHC/Internal/ST.hs - libraries/ghc-internal/src/GHC/Internal/STM.hs - libraries/ghc-internal/src/GHC/Internal/STRef.hs - libraries/ghc-internal/src/GHC/Internal/Show.hs - libraries/ghc-internal/src/GHC/Internal/Stable.hs - libraries/ghc-internal/src/GHC/Internal/StableName.hs - libraries/ghc-internal/src/GHC/Internal/Stack.hs - libraries/ghc-internal/src/GHC/Internal/Stack.hs-boot - libraries/ghc-internal/src/GHC/Internal/Stack/Annotation.hs - libraries/ghc-internal/src/GHC/Internal/Stack/CCS.hsc - libraries/ghc-internal/src/GHC/Internal/Stack/CloneStack.hs - libraries/ghc-internal/src/GHC/Internal/Stack/Constants.hsc - libraries/ghc-internal/src/GHC/Internal/Stack/ConstantsProf.hsc - libraries/ghc-internal/src/GHC/Internal/Stack/Decode.hs - libraries/ghc-internal/src/GHC/Internal/Stack/Types.hs - libraries/ghc-internal/src/GHC/Internal/StaticPtr.hs - libraries/ghc-internal/src/GHC/Internal/StaticPtr/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Stats.hsc - libraries/ghc-internal/src/GHC/Internal/Storable.hs - libraries/ghc-internal/src/GHC/Internal/System/Environment.hs - libraries/ghc-internal/src/GHC/Internal/System/Environment/Blank.hsc - libraries/ghc-internal/src/GHC/Internal/System/Environment/ExecutablePath.hsc - libraries/ghc-internal/src/GHC/Internal/System/IO/Error.hs - libraries/ghc-internal/src/GHC/Internal/System/Mem.hs - libraries/ghc-internal/src/GHC/Internal/System/Posix/Internals.hs - libraries/ghc-internal/src/GHC/Internal/System/Posix/Types.hs - libraries/ghc-internal/src/GHC/Internal/TH/Lib.hs - libraries/ghc-internal/src/GHC/Internal/TH/Lift.hs - libraries/ghc-internal/src/GHC/Internal/TH/Monad.hs - libraries/ghc-internal/src/GHC/Internal/TH/Syntax.hs - libraries/ghc-internal/src/GHC/Internal/Text/ParserCombinators/ReadP.hs - libraries/ghc-internal/src/GHC/Internal/Text/ParserCombinators/ReadPrec.hs - libraries/ghc-internal/src/GHC/Internal/Text/Read/Lex.hs - libraries/ghc-internal/src/GHC/Internal/TopHandler.hs - libraries/ghc-internal/src/GHC/Internal/Tuple.hs - libraries/ghc-internal/src/GHC/Internal/Type/Reflection.hs - libraries/ghc-internal/src/GHC/Internal/Type/Reflection/Unsafe.hs - libraries/ghc-internal/src/GHC/Internal/TypeError.hs - libraries/ghc-internal/src/GHC/Internal/TypeLits.hs - libraries/ghc-internal/src/GHC/Internal/TypeLits/Internal.hs - libraries/ghc-internal/src/GHC/Internal/TypeNats.hs - libraries/ghc-internal/src/GHC/Internal/TypeNats/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Types.hs - libraries/ghc-internal/src/GHC/Internal/Unicode.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Bits.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/DerivedCoreProperties.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/GeneralCategory.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleLowerCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleTitleCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleUpperCaseMapping.hs - libraries/ghc-internal/src/GHC/Internal/Unicode/Version.hs - libraries/ghc-internal/src/GHC/Internal/Unsafe/Coerce.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Conc.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Conc/Internal.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Exports.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Imports.hs - libraries/ghc-internal/src/GHC/Internal/Wasm/Prim/Types.hs - libraries/ghc-internal/src/GHC/Internal/Weak.hs - libraries/ghc-internal/src/GHC/Internal/Weak/Finalize.hs - libraries/ghc-internal/src/GHC/Internal/Windows.hs - libraries/ghc-internal/src/GHC/Internal/Word.hs - libraries/ghc-internal/tools/ucd2haskell/exe/UCD2Haskell/ModuleGenerators.hs - libraries/ghc-prim/Dummy.hs - libraries/ghc-prim/ghc-prim.cabal - libraries/template-haskell/Language/Haskell/TH/Lib.hs - linters/lint-codes/LintCodes/Static.hs - rts/LdvProfile.c - rts/PrimOps.cmm - rts/Printer.c - rts/ProfHeap.c - rts/include/rts/RtsToHsIface.h - rts/include/rts/storage/ClosureMacros.h - rts/sm/Sanity.c - rts/sm/Storage.c - testsuite/driver/perf_notes.py - testsuite/driver/testlib.py - testsuite/driver/testutil.py - testsuite/tests/ado/T13242a.stderr - testsuite/tests/annotations/should_fail/annfail10.stderr - testsuite/tests/backpack/cabal/bkpcabal07/Makefile - testsuite/tests/backpack/should_compile/T20396.stderr - testsuite/tests/backpack/should_fail/bkpfail17.stderr - testsuite/tests/bytecode/TLinkable/all.T - testsuite/tests/cabal/T12485/Makefile - + testsuite/tests/cabal/T27013a/Makefile - + testsuite/tests/cabal/T27013a/Setup.hs - + testsuite/tests/cabal/T27013a/all.T - + testsuite/tests/cabal/T27013a/composition.cabal - + testsuite/tests/cabal/T27013a/src/Data/Composition.hs - + testsuite/tests/cabal/T27013d/Composition.hs - + testsuite/tests/cabal/T27013d/Makefile - + testsuite/tests/cabal/T27013d/T27013d.stdout - + testsuite/tests/cabal/T27013d/all.T - testsuite/tests/callarity/unittest/CallArity1.hs - testsuite/tests/corelint/LintEtaExpand.hs - testsuite/tests/corelint/T21115b.stderr - testsuite/tests/corelint/T27374.hs - testsuite/tests/count-deps/CountDepsParser.stdout - testsuite/tests/deSugar/should_compile/T13208.stdout - testsuite/tests/deSugar/should_compile/T16615.stderr - testsuite/tests/deSugar/should_compile/T2431.stderr - testsuite/tests/default/DefaultImportFail01.stderr - testsuite/tests/default/DefaultImportFail02.stderr - testsuite/tests/default/DefaultImportFail03.stderr - testsuite/tests/default/DefaultImportFail04.stderr - testsuite/tests/default/DefaultImportFail05.stderr - testsuite/tests/default/DefaultImportFail07.stderr - testsuite/tests/default/T25775.stderr - testsuite/tests/deriving/should_compile/T14682.stderr - testsuite/tests/deriving/should_compile/T20496.stderr - testsuite/tests/diagnostic-codes/codes.stdout - testsuite/tests/dmdanal/should_compile/T23398.stderr - + testsuite/tests/driver/T27013b/Makefile - + testsuite/tests/driver/T27013b/T27013b.stdout - + testsuite/tests/driver/T27013b/X.hs - + testsuite/tests/driver/T27013b/all.T - + testsuite/tests/driver/T27013c/Makefile - + testsuite/tests/driver/T27013c/T27013c.stdout - + testsuite/tests/driver/T27013c/X.hs - + testsuite/tests/driver/T27013c/all.T - + testsuite/tests/driver/T27013e/T27013e.hs - + testsuite/tests/driver/T27013e/T27013e.stderr - + testsuite/tests/driver/T27013e/all.T - + testsuite/tests/driver/T27013f/T27013f.hs - + testsuite/tests/driver/T27013f/T27013f.stderr - + testsuite/tests/driver/T27013f/all.T - + testsuite/tests/driver/T27013g/T27013g.hs - + testsuite/tests/driver/T27013g/all.T - + testsuite/tests/driver/T27013h/GHC/Essentials.hs - + testsuite/tests/driver/T27013h/T27013h.stderr - + testsuite/tests/driver/T27013h/all.T - + testsuite/tests/driver/T27013h/unitT27013h - + testsuite/tests/driver/T27013i/T27013i.hs - + testsuite/tests/driver/T27013i/T27013i.stderr - + testsuite/tests/driver/T27013i/all.T - testsuite/tests/driver/T3007/A/Internal.hs - testsuite/tests/driver/T3007/Makefile - testsuite/tests/driver/make-prim/Makefile - testsuite/tests/driver/multipleHomeUnits/Makefile - testsuite/tests/driver/multipleHomeUnits/all.T - + testsuite/tests/driver/multipleHomeUnits/essentials-home/GHC/Essentials.hs - + testsuite/tests/driver/multipleHomeUnits/essentials-order-base/B.hs - + testsuite/tests/driver/multipleHomeUnits/essentials-order-user/U.hs - + testsuite/tests/driver/multipleHomeUnits/essentials-user/M.hs - testsuite/tests/driver/multipleHomeUnits/multipleHomeUnitsModuleVisibility.stderr - + testsuite/tests/driver/multipleHomeUnits/multipleHomeUnits_essentials.stdout - + testsuite/tests/driver/multipleHomeUnits/multipleHomeUnits_essentials_order.stderr - + testsuite/tests/driver/multipleHomeUnits/multipleHomeUnits_essentials_recomp.stdout - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsHome - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsHomeHidden - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsOrderBase - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsOrderUser - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsUser - + testsuite/tests/driver/multipleHomeUnits/unitEssentialsUserHidden - testsuite/tests/driver/recomp24656/Makefile - testsuite/tests/driver/recomp24656/recomp24656.stdout - testsuite/tests/ffi/should_fail/all.T - + testsuite/tests/ffi/should_fail/ccfail006.hs - + testsuite/tests/ffi/should_fail/ccfail006.stderr - + testsuite/tests/ffi/should_fail/ccfail007.hs - + testsuite/tests/ffi/should_fail/ccfail007.stderr - + testsuite/tests/ffi/should_fail/ccfail008.hs - + testsuite/tests/ffi/should_fail/ccfail008.stderr - + testsuite/tests/ffi/should_fail/ccfail009.hs - + testsuite/tests/ffi/should_fail/ccfail009.stderr - + testsuite/tests/ghc-api/EssentialsCoverage.hs - testsuite/tests/ghc-api/T8628.hs - testsuite/tests/ghc-api/all.T - testsuite/tests/ghc-api/downsweep/PartialDownsweep.hs - testsuite/tests/ghci.debugger/scripts/break006.stderr - testsuite/tests/ghci.debugger/scripts/print019.stderr - testsuite/tests/ghci/scripts/ListTuplePunsPpr.stdout - testsuite/tests/ghci/scripts/T4175.stdout - testsuite/tests/ghci/scripts/all.T - testsuite/tests/ghci/scripts/ghci064.stdout - testsuite/tests/hiefile/should_run/T23120.stdout - testsuite/tests/iface/IfaceSharingIfaceType.hs - testsuite/tests/iface/IfaceSharingName.hs - testsuite/tests/indexed-types/should_fail/T12522a.stderr - testsuite/tests/interface-stability/base-exports.stdout - testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs - testsuite/tests/interface-stability/base-exports.stdout-mingw32 - testsuite/tests/interface-stability/ghc-experimental-exports.stdout - testsuite/tests/interface-stability/ghc-experimental-exports.stdout-mingw32 - testsuite/tests/interface-stability/ghc-prim-exports.stdout - testsuite/tests/interface-stability/ghc-prim-exports.stdout-mingw32 - testsuite/tests/interface-stability/template-haskell-exports.stdout - testsuite/tests/javascript/Makefile - testsuite/tests/javascript/T24495.hs - testsuite/tests/module/mod185.stderr - testsuite/tests/numeric/should_compile/T14170.stdout - testsuite/tests/numeric/should_compile/T14465.stdout - testsuite/tests/numeric/should_compile/T23907.stderr - testsuite/tests/numeric/should_compile/T7116.stdout - testsuite/tests/overloadedlists/should_fail/overloadedlistsfail01.stderr - testsuite/tests/package/all.T - testsuite/tests/parser/should_compile/DumpParsedAst.stderr - testsuite/tests/parser/should_compile/DumpRenamedAst.stderr - testsuite/tests/parser/should_compile/DumpSemis.stderr - testsuite/tests/parser/should_compile/DumpTypecheckedAst.stderr - testsuite/tests/parser/should_compile/KindSigs.stderr - testsuite/tests/parser/should_compile/T14189.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail10.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail11.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail13.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail8.stderr - testsuite/tests/parser/should_fail/T16270h.hs - testsuite/tests/partial-sigs/should_fail/NamedWildcardsNotInMonotype.stderr - testsuite/tests/patsyn/should_fail/T26465.stderr - testsuite/tests/perf/compiler/all.T - testsuite/tests/perf/should_run/ByteCodeAsm.hs - testsuite/tests/plugins/defaulting-plugin/DefaultInterference.hs - testsuite/tests/plugins/defaulting-plugin/DefaultInvalid.hs - testsuite/tests/plugins/defaulting-plugin/DefaultMultiParam.hs - testsuite/tests/plugins/plugins09.stdout - testsuite/tests/plugins/plugins10.stdout - testsuite/tests/plugins/plugins11.stdout - testsuite/tests/plugins/simple-plugin/Simple/ReplacePlugin.hs - testsuite/tests/plugins/static-plugins.stdout - testsuite/tests/profiling/should_run/callstack001.stdout - testsuite/tests/profiling/should_run/callstack002.stderr - testsuite/tests/profiling/should_run/callstack002.stdout - testsuite/tests/rename/should_compile/T3103/Foreign/Ptr.hs - testsuite/tests/rename/should_compile/T3103/GHC/Base.lhs - testsuite/tests/rename/should_compile/T3103/GHC/Word.hs - testsuite/tests/rename/should_compile/T3103/test.T - testsuite/tests/rep-poly/RepPolyRecordPattern.hs - testsuite/tests/rep-poly/RepPolyRecordPattern.stderr - testsuite/tests/rep-poly/RepPolyRecordUpdate.stderr - testsuite/tests/rep-poly/T20113.stderr - − testsuite/tests/rep-poly/T20363.stderr - − testsuite/tests/rep-poly/T20363_show_co.hs - − testsuite/tests/rep-poly/T20363_show_co.stderr - − testsuite/tests/rep-poly/T20363b.stderr - + testsuite/tests/rep-poly/T20363c.hs - testsuite/tests/rep-poly/all.T - testsuite/tests/roles/should_compile/Roles1.stderr - testsuite/tests/roles/should_compile/Roles13.stderr - testsuite/tests/roles/should_compile/Roles14.stderr - testsuite/tests/roles/should_compile/Roles2.stderr - testsuite/tests/roles/should_compile/Roles3.stderr - testsuite/tests/roles/should_compile/Roles4.stderr - testsuite/tests/roles/should_compile/T8958.stderr - + testsuite/tests/rts/T27585.hs - + testsuite/tests/rts/T27585.stdout - testsuite/tests/rts/all.T - testsuite/tests/simplCore/should_compile/OpaqueNoCastWW.stderr - testsuite/tests/simplCore/should_compile/T13543.stderr - testsuite/tests/simplCore/should_compile/T16038/T16038.stdout - testsuite/tests/simplCore/should_compile/T24229a.stderr - testsuite/tests/simplCore/should_compile/T24229b.stderr - testsuite/tests/simplCore/should_compile/T3717.stderr - testsuite/tests/simplCore/should_compile/T3772.stdout - testsuite/tests/simplCore/should_compile/T4081.stderr - testsuite/tests/simplCore/should_compile/T4908.stderr - testsuite/tests/simplCore/should_compile/T4930.stderr - testsuite/tests/simplCore/should_compile/T7360.stderr - testsuite/tests/simplCore/should_compile/T8274.stdout - testsuite/tests/simplCore/should_compile/T9400.stderr - testsuite/tests/simplCore/should_compile/noinline01.stderr - testsuite/tests/simplCore/should_compile/par01.stderr - testsuite/tests/simplCore/should_compile/rule2.stderr - testsuite/tests/simplCore/should_compile/str-rules.hs - testsuite/tests/tcplugins/ArgsPlugin.hs - testsuite/tests/tcplugins/EmitWantedPlugin.hs - testsuite/tests/tcplugins/RewritePlugin.hs - testsuite/tests/tcplugins/T26395_Plugin.hs - testsuite/tests/tcplugins/TyFamPlugin.hs - + testsuite/tests/th/AssocDefaultNotAssoc.hs - + testsuite/tests/th/AssocDefaultNotAssoc.stderr - testsuite/tests/th/T14741.hs - testsuite/tests/th/T21547.stderr - testsuite/tests/th/T26568.stderr - + testsuite/tests/th/T27013th.hs - + testsuite/tests/th/TH_InvalidTopDecl.hs - + testsuite/tests/th/TH_InvalidTopDecl.stderr - testsuite/tests/th/TH_Roles2.stderr - + testsuite/tests/th/TH_cvt_DefaultDataInstDecl.hs - + testsuite/tests/th/TH_cvt_DefaultDataInstDecl.stderr - + testsuite/tests/th/TH_cvt_GadtNoCons.hs - + testsuite/tests/th/TH_cvt_GadtNoCons.stderr - + testsuite/tests/th/TH_cvt_IllegalDeclaration.hs - + testsuite/tests/th/TH_cvt_IllegalDeclaration.stderr - + testsuite/tests/th/TH_cvt_IllegalSumAlt.hs - + testsuite/tests/th/TH_cvt_IllegalSumAlt.stderr - + testsuite/tests/th/TH_cvt_InvalidCCallImpent.hs - + testsuite/tests/th/TH_cvt_InvalidCCallImpent.stderr - + testsuite/tests/th/TH_cvt_InvalidTyFamInstLHS.hs - + testsuite/tests/th/TH_cvt_InvalidTyFamInstLHS.stderr - + testsuite/tests/th/TH_cvt_InvalidTypeInstanceHeader.hs - + testsuite/tests/th/TH_cvt_InvalidTypeInstanceHeader.stderr - + testsuite/tests/th/TH_cvt_RecGadtNoCons.hs - + testsuite/tests/th/TH_cvt_RecGadtNoCons.stderr - + testsuite/tests/th/TH_cvt_SumAltArityExceeded.hs - + testsuite/tests/th/TH_cvt_SumAltArityExceeded.stderr - + testsuite/tests/th/TH_pragmaSpecOld.hs - + testsuite/tests/th/TH_pragmaSpecOld.stderr - testsuite/tests/th/all.T - testsuite/tests/typecheck/should_compile/T13032.stderr - testsuite/tests/typecheck/should_compile/T14273.stderr - testsuite/tests/typecheck/should_compile/T18406b.stderr - testsuite/tests/typecheck/should_compile/T18529.stderr - testsuite/tests/typecheck/should_compile/holes.stderr - testsuite/tests/typecheck/should_compile/holes2.stderr - testsuite/tests/typecheck/should_compile/holes3.stderr - testsuite/tests/typecheck/should_compile/subsumption_sort_hole_fits.stderr - testsuite/tests/typecheck/should_compile/valid_hole_fits.stderr - testsuite/tests/typecheck/should_fail/T12921.stderr - testsuite/tests/typecheck/should_fail/T14884.stderr - testsuite/tests/typecheck/should_fail/T15883b.stderr - testsuite/tests/typecheck/should_fail/T15883c.stderr - testsuite/tests/typecheck/should_fail/T15883d.stderr - testsuite/tests/typecheck/should_fail/T21130.stderr - testsuite/tests/typecheck/should_fail/T3323.stderr - testsuite/tests/typecheck/should_fail/T5095.stderr - testsuite/tests/typecheck/should_fail/T7279.stderr - testsuite/tests/typecheck/should_fail/TcStaticPointersFail02.stderr - testsuite/tests/typecheck/should_fail/TyAppPat_PatternBindingExistential.stderr - testsuite/tests/typecheck/should_fail/tcfail072.stderr - testsuite/tests/typecheck/should_fail/tcfail097.stderr - testsuite/tests/typecheck/should_fail/tcfail133.stderr - testsuite/tests/typecheck/should_run/T22510.stdout - testsuite/tests/unboxedsums/UbxSumLevPoly.hs - testsuite/tests/unboxedsums/unboxedsums_unit_tests.hs - testsuite/tests/warnings/should_compile/DerivingTypeable.stderr - utils/check-exact/Utils.hs - utils/genprimopcode/Main.hs - utils/haddock/haddock-api/src/Haddock/Convert.hs - utils/haddock/haddock-api/src/Haddock/GhcUtils.hs - utils/haddock/haddock-api/src/Haddock/Interface.hs - utils/haddock/haddock-api/src/Haddock/Interface/AttachInstances.hs - utils/haddock/haddock-api/src/Haddock/Interface/Create.hs - utils/haddock/haddock-api/src/Haddock/Interface/Rename.hs - utils/haddock/haddock-api/src/Haddock/Types.hs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/3731b23a08216bbff8d7eadf8b3804… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/3731b23a08216bbff8d7eadf8b3804… You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc][wip/mangoiv/27556] hadrian: set the executable bit for hie-bios.bat
by Magnus (＠MangoIV) 14 Aug '26

14 Aug '26

Magnus pushed to branch wip/mangoiv/27556 at Glasgow Haskell Compiler / GHC Commits: db0d64ae by mangoiv at 2026-08-14T16:14:03+02:00 hadrian: set the executable bit for hie-bios.bat - - - - - 1 changed file: - hadrian/hie-bios.bat Changes: ===================================== hadrian/hie-bios.bat ===================================== View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/db0d64ae93d0e4048658fdb64875ef5… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/db0d64ae93d0e4048658fdb64875ef5… You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc] Pushed new branch wip/mangoiv/27556
by Magnus (＠MangoIV) 14 Aug '26

14 Aug '26

Magnus pushed new branch wip/mangoiv/27556 at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/mangoiv/27556 You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc][wip/romes/27514] 3 commits: fixup: Add mask_ to parent forkIOWithUnmask
by Rodrigo Mesquita (＠alt-romes) 14 Aug '26

14 Aug '26

Rodrigo Mesquita pushed to branch wip/romes/27514 at Glasgow Haskell Compiler / GHC Commits: 02b3b6ee by Rodrigo Mesquita at 2026-08-14T13:32:58+01:00 fixup: Add mask_ to parent forkIOWithUnmask - - - - - c65f7a6e by Rodrigo Mesquita at 2026-08-14T13:38:13+01:00 fixup: reduce transactions, put together sequentially together ones - - - - - b8695cd3 by Rodrigo Mesquita at 2026-08-14T13:56:58+01:00 fixup: keep track of worker threads - - - - - 2 changed files: - compiler/GHC/Driver/Downsweep.hs - compiler/GHC/Driver/MakeAction.hs Changes: ===================================== compiler/GHC/Driver/Downsweep.hs ===================================== @@ -1787,9 +1787,10 @@ parDfsBuild base_map roots key expand = ReaderT $ \ds_env -> do visited_var <- newTVarIO (fromMaybe Map.empty base_map) pending <- newTVarIO Set.empty worklist <- newTQueueIO + threads <- newTVarIO [] coord_tid <- forkIO $ - coordinator ds_env exc_var visited_var worklist pending + coordinator ds_env exc_var visited_var worklist pending threads `MC.catch` \case (e::MC.SomeException) -- exit cleanly when killed @@ -1798,11 +1799,12 @@ parDfsBuild base_map roots key expand = ReaderT $ \ds_env -> do -- signal the exc_var for the main thread to throw it | otherwise -> atomically (modifyTVar' exc_var (<|> Just e)) - mapM_ (atomically . writeTQueue worklist) roots + atomically $ mapM_ (writeTQueue worklist) roots mb_exc <- wait_done exc_var worklist pending `MC.finally` do killThread coord_tid + mapM_ killThread =<< readTVarIO threads case mb_exc of Just e -> throwIO e @@ -1820,7 +1822,7 @@ parDfsBuild base_map roots key expand = ReaderT $ \ds_env -> do unless (empty_worklist && empty_pending) retry return Nothing - coordinator ds_env exc_var visvar worklist pendvar = forever $ do + coordinator ds_env exc_var visvar worklist pendvar threads = forever $ do mb_node_to_expand <- atomically $ do node <- readTQueue worklist let k = key node @@ -1839,27 +1841,32 @@ parDfsBuild base_map roots key expand = ReaderT $ \ds_env -> do case mb_node_to_expand of Nothing -> return () - Just (k, node) -> void $ do - withLocalTmpFSMake (ds_make_env ds_env) $ \make_env -> - forkIOWithUnmask $ \unmask -> + Just (k, node) -> do + tid <- withLocalTmpFSMake (ds_make_env ds_env) $ \make_env -> + MC.mask_ $ forkIOWithUnmask $ \unmask -> unmask (worker ds_env{ds_make_env = make_env} visvar worklist pendvar k node) - -- write exception in the worker to the main thread - `MC.catch` \(e::MC.SomeException) -> - atomically (modifyTVar' exc_var (<|> Just e)) + `MC.catch` \case + e | Just (_ :: SomeAsyncException) <- fromException e + -> throwIO e -- async exceptions like KillThread get thrown + | otherwise -- exceptions in workers are written for main thread + -> atomically (modifyTVar' exc_var (<|> Just e)) + + atomically $ modifyTVar' threads (tid:) worker ds_env@DownsweepEnv{..} visvar worklist pendvar k node = withAbstractSem (compile_sem ds_make_env) $ do r <- runDownsweepM ds_env $ expand node -- do the main work! - case r of - NSkip -> - atomically $ modifyTVar' visvar (Map.insert k NSkip) - NSuccess (v,ns) -> do - atomically $ modifyTVar' visvar (Map.insert k (NSuccess v)) - mapM_ (atomically . writeTQueue worklist) ns + atomically $ do + case r of + NSkip -> + modifyTVar' visvar (Map.insert k NSkip) + NSuccess (v,ns) -> do + modifyTVar' visvar (Map.insert k (NSuccess v)) + mapM_ (writeTQueue worklist) ns - atomically $ modifyTVar' pendvar (Set.delete k) + modifyTVar' pendvar (Set.delete k) {- Note [Downsweep Control Flow and Caching] ===================================== compiler/GHC/Driver/MakeAction.hs ===================================== @@ -185,7 +185,8 @@ runLoop fork_thread env (MakeAction act res_var :acts) = do -- withLocalTmpFs has to occur outside of fork to remain deterministic new_thread <- withLocalTmpFSMake env $ \lcl_env -> - fork_thread $ \unmask -> (do + MC.mask_ $ + fork_thread $ \unmask -> (do mres <- (unmask $ run_pipeline lcl_env act) `MC.onException` (putMVar res_var Nothing) -- Defensive: If there's an unhandled exception then still signal the failure. putMVar res_var mres) View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d333bb06f7fd6603543ada4bf39916… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d333bb06f7fd6603543ada4bf39916… You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0

[Git][ghc/ghc] Pushed new branch wip/T27627
by Simon Peyton Jones (＠simonpj) 14 Aug '26

14 Aug '26

Simon Peyton Jones pushed new branch wip/T27627 at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/T27627 You're receiving this email because of your account on gitlab.haskell.org. Manage all notifications: https://gitlab.haskell.org/-/profile/notifications | Help: https://gitlab.haskell.org/help

1 0