- Feb 13, 2022
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Didn't get it right the ninth time. Now everything's formatted correctly.
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The last Alpha chip was produced in 2004.
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Previously we failed to handle the case that `allocateExecPage` failed.
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- Feb 12, 2022
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This does three major things: * Enforce the invariant that all strict fields must contain tagged pointers. * Try to predict the tag on bindings in order to omit tag checks. * Allows functions to pass arguments unlifted (call-by-value). The former is "simply" achieved by wrapping any constructor allocations with a case which will evaluate the respective strict bindings. The prediction is done by a new data flow analysis based on the STG representation of a program. This also helps us to avoid generating redudant cases for the above invariant. StrictWorkers are created by W/W directly and SpecConstr indirectly. See the Note [Strict Worker Ids] Other minor changes: * Add StgUtil module containing a few functions needed by, but not specific to the tag analysis. ------------------------- Metric Decrease: T12545 T18698b T18140 T18923 LargeRecord Metric Increase: LargeRecord ManyAlternatives ManyConstructors T10421 T12425 T12707 T13035 T13056 T13253 T13253-spj T13379 T15164 T18282 T18304 T18698a T1969 T20049 T3294 T4801 T5321FD T5321Fun T783 T9233 T9675 T9961 T19695 WWRec ------------------------- -
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I made a mistake when implementing #21029 which meant that certain tests didn't trigger a GHC recompilation. By adding the `test:ghc` target to the default settings all tests will now depend on this target unless explicitly opting out via the no_deps modifier.
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The release bindists are currently a mixture of validate and release builds. This is bad because the validate builds don't have profiling libraries. The fix is to make sure there is a release job for each platform we want to produce a release for.t Fixes #21066
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- Feb 11, 2022
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This test was taking too long to run, so this patch makes it smaller. ------------------------- Metric Decrease: LargeRecord ------------------------- -
ghc-prim doesn't depend on base so can't have any Monoid or Semigroup instances. However, attempting to load these definitions ran into issues when the interface for `GHC.Base` did exist as that would try and load the interface for `GHC.Types` (which is the module we are trying to compile and has no interface). The fix is to just not do this check when we are compiling a module in ghc-prim. Fixes #21069
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Not all events start with CapNo and there's not logic I could see which adds this to the length.
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This leads to corrupted eventlogs because the size of EVENT_MEM_RETURN is completely wrong. Fixes a bug introduced in 2e29edb7
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This leads to corrupted eventlogs because the size of EVENT_IPE is completely wrong. Fixes a bug introduced in 2e29edb7
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Adapts GHC to the factoring-out of `Cabal-syntax`. Fixes #20991. Metric Decrease: haddock.Cabal -
Commit ef8a3fbf ("ghc-boot: Fix metadata handling of writeFileAtomic") introduced a somewhat over-engineered fix for #14017 by trying to preserve the current permissions if the target file already exists. The problem in the issue is simply that the package db cache file should be world readable but isn't if umask is too restrictive. In fact the previous fix only handles part of this problem. If the file isn't already there in a readable configuration it wont make it so which isn't really ideal either. Rather than all that we now simply always force all the read access bits to allow access while leaving the owner at the system default as it's just not our business to mess with it.
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- Feb 10, 2022
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Previously `addLibrarySearchPath` failed to normalise the added path to UNC form before passing it to `AddDllDirectory`. Consequently, the call was subject to the MAX_PATH restriction, leading to the failure of `test-defaulting-plugin-fail`, among others. Happily, this also nicely simplifies the implementation. Closes #21059.
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We no longer support Windows Vista.
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This allows cost centres to be inserted after the core optimization pipeline has run.
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This patch adds some performance tests for programs that create large coercions. This is useful because the existing test coverage is not very representative of real-world situations. In particular, this adds a test involving an extensible records library, a common pain-point for users.
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Here we try to separate the policy decisions of where to place mappings from the mechanism of creating the mappings. This makes things significantly easier to follow.
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As noted in #21057, we really shouldn't be using MAP_FIXED. I would much rather have the process crash with a "failed to map" error than randomly overwrite existing mappings. Closes #21057.
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They are not particularly related to linking.
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See #18147
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- Feb 09, 2022
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hptSomeThingsBelow would return a list of modules which contain the .hs-boot file for a particular module. This caused some problems because we would try and find the module in the HPT (but it's not there when we're compiling the module itself). Fixes #21058
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For consistency with --make and friends.
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