- 11 Oct, 2020 1 commit
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Hécate Moonlight authored
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- 10 Oct, 2020 3 commits
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- 09 Oct, 2020 25 commits
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fendor authored -
Instead of recreating the HomeUnit from the DynFlags every time we need it, we store it in the HscEnv.
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!3798 added documentation and semantics for the flags, but not parsing.
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Firstly this improves code clarity. But it also has performance benefits as we no longer go through the name of the TyCon to get at it's unique. In order to make this work the recursion check for TyCon has been moved into it's own module in order to avoid import cycles.
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This should fix #18774.
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This fixes a long-standing bug in the desugaring of record updates for data families, when the latter involves a GADT. It's all explained in Note [Update for GADTs] in GHC.HsToCore.Expr. Building the correct cast is surprisingly tricky, as that Note explains. Fixes #18809. The test case (in indexed-types/should_compile/T18809) contains several examples that exercise the dark corners.
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Previously the make build system's source distribution rules neglected to include Hadrian's sources. Fixes #18794.
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A cleanup in 7f418acf accidentally discarded some parens in ConDeclGADT. Make sure these stay in the AST in a usable format. Also ensure the AnnLolly does not get lost in a GADT.
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Previously we only matched on *variables* whose unfoldings were a ConApp of the form `IS lit#` or `NS lit##`. But we forgot to match on the ConApp directly... As a consequence, constant folding only worked after the FloatOut pass which creates bindings for most sub-expressions. With this patch, matching on bignums works even with -O0 (see bignumMatch test).
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We now seem to use -Werror there. Which caused some long standing warnings to become errors. I applied changes to remove the warnings allowing the testsuite to run on windows as well.
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Replace options like collect_stats(['peak_megabytes_allocated'],4) with collect_runtime_residency(4) and so forth. Reason being that the later also supplies some default RTS arguments which make sure residency does not fluctuate too much. The new flags mean we get new (hopefully more accurate) baselines so accept the stat changes. ------------------------- Metric Decrease: T4029 T4334 T7850 Metric Increase: T13218 T7436 ------------------------- -
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Fixes #17919.
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Tracking: #18641
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Some RTS ways are exposed via settings (ghcThreaded, ghcDebugged) but not all. It's simpler if the RTS exposes them all itself.
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On windows the stack has to be allocated 4k at a time, otherwise we get a segfault. This is done by using a helper ___chkstk_ms that is provided by libgcc. The Haskell side already knows how to handle this but we need to do the same from STG. Previously we would drop the stack in StgRun but would only make it valid whenever the scheduler loop ran. This approach was fundamentally broken in that it falls apart when you take a signal from the OS. We see it less often because you initially get allocated a 1MB stack block which you have to blow past first. Concretely this means we must always keep the stack valid. Fixes #18601.
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Updates containers submodule.
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In Cmm we can only have real units identified with an UnitId. Other units (on-the-fly instantiated units and holes) are only used in type-checking backpack sessions that don't produce Cmm.
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- 07 Oct, 2020 9 commits
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* Include funTyCon in exposedPrimTyCons. Every single place using exposedPrimTyCons was adding funTyCon manually. * Remove unused synTyConResKind and ieLWrappedName * Add recordSelectorTyCon_maybe * In exprType, panic instead of giving a trace message and dummy output. This prevents #18767 reoccurring. * Fix compilation error in fragile concprog001 test (part of #18732)
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Several people have struggled with metric change annotations in their commit messages not being recognized due to the fact that GitLab's job log inserts a space at the beginning of each line. Teach the regular expression to accept this whitespace.
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When linear types are disabled, HsUnrestrictedArrow is treated as HslinearArrow. Move this adjustment into the type checking phase, so that the parsed source accurately represents the source as parsed. Closes #18791
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Before this patch -flink-rts could link with GHC's rts instead of the selected one.
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Move the atomix exchange over the Ptr type to an internal module. Fix a bug caused by us passing ptr-to-ptr instead of ptr to atomic exchange. Renamed interlockedExchange to exchangePtr. I've also added an cas primitive. It turned out we don't need it for WinIO but I'm leaving it in as it's useful for other things.
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- 05 Oct, 2020 2 commits
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Previously `TICK_BUMP_BY` was defined as ```c #define TICK_BUMP_BY(ctr,n) CLong[ctr] = CLong[ctr] + n ``` Yet the tickers themselves were defined as `StgInt`s. This happened to work out correctly on Linux, where `CLong` is 64-bits. However, it failed on Windows, where `CLong` is 32-bits, resulting in #18782. Fixes #18783.
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