- Feb 15, 2024
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This patch builds on 5077416e and modifies the base API to reflect the new RTS flag. CLC proposal #243 - https://github.com/haskell/core-libraries-committee/issues/243 Fixes #24337
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The simple optimizer reduces the size of the code generated by the JavaScript backend without the complexity and performance penalty of the optimizer in GHCJS. Also see #22736 Metric Decrease: libdir size_hello_artifact -
Looking up by OccName only does not take into account when functions are only imported in a qualified way. Fixes issue #24294 Bump haddock submodule to include regression test
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Adds `sortOn` to `Data.List.NonEmpty`, and adds comments describing when to use it, compared to `sortWith` or `sortBy . comparing`. The aim is to smooth out the API between `Data.List`, and `Data.List.NonEmpty`. This change has been discussed in the [clc issue](https://github.com/haskell/core-libraries-committee/issues/227).
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- Feb 14, 2024
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This commit fixes two wasm unreg regressions caught by a nightly pipeline: - Unknown stg_scheduler_loopzh symbol when compiling scheduler.cmm - Invalid _hs_constructor(101) function name when handling ctor
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The strings in IPE events may be of unbounded length. Limit the lengths of these fields to 64k characters to ensure that we don't exceed the maximum event length.
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Previously many of the `post*` implementations would first compute the length of the event's strings in order to determine the event length. Later we would then end up computing the length yet again in `postString`. Now we instead pass the string length to `postStringLen`, avoiding the repeated work.
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Check for ptr/int arguments rather than 64-bit width arguments when counting integer register arguments. The old approach broke when we stopped using exclusively W64-sized types to represent sub-word sized integers. Fixes #24314
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Leaving a few that are too tricky, maybe some other time. Also - remove some unneeded helpers from Parser.y - reduce allocations with strictness annotations Updates haddock submodule Metric Decrease: parsing001
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- Feb 13, 2024
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This commit cleans up how we include the xxhash.h header and only define XXH_INLINE_ALL, which is sufficient to inline the xxHash functions without symbol collision.
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This commit enables XXH3_64bits hash to be used on all 64-bit platforms. Previously it was only enabled on x86_64, so platforms like aarch64 silently falls back to using XXH32 which degrades the hashing function quality.
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These tests were previously part of the libraries, which themselves are submodules of the GHC repository. This commit moves the tests directly to the GHC repository.
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This commit adds changelog and user facing documentation for the wasm backend's JSFFI feature.
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This commit adds a few test cases for the wasm backend's JSFFI functionality, as well as a simple README to instruct future contributors to add new test cases.
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T22774 works since the wasm backend now supports the JSFFI feature.
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This commit adds opts.target_wrapper which allows overriding the target wrapper on a per test case basis when testing a cross target. This is used when testing the wasm backend's JSFFI functionality; the rest of the cases are tested using wasmtime, though the jsffi cases are tested using the node.js based test runner.
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The post-linker.mjs/prelude.js files are now distributed in the bindist libdir, so when using the wasm backend's JSFFI feature, the user wouldn't need to fetch them from a ghc checkout manually.
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This commit adds JavaScript util code to utils to support the wasm backend's JSFFI functionality: - jsffi/post-link.mjs, a post-linker to process the linked wasm module and emit a small complement JavaScript ESM module to be used with it at runtime - jsffi/prelude.js, a tiny bit of prelude code as the JavaScript side of runtime logic - jsffi/test-runner.mjs, run the jsffi test cases Co-authored-by:amesgen <amesgen@amesgen.de>
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This commit fixes broken threadDelay for wasm when it runs in browsers, see added note for detailed explanation.
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This commit adds rts/ghc-internal logic to support the wasm backend's JSFFI functionality.
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This commit adds JavaScriptFFI as a supported extension when the target platform is wasm32.
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This commit adds JSFFI desugar logic for the wasm backend.
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This commit fixes the priorities of ctors generated by GHC codegen on wasm32, see the referred note for details.
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This commit allows the boxed JSVal type to be used as a foreign argument/result type.
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This commit allows the javascript calling convention to be used when the target platform is wasm32.
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The pure Haskell implementation causes i386 regression in unrelated work that can be fixed by using C-based atomic increment, see added comment for details.
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This commit adds needed constants to deriveConstants. They are used by RTS code in the wasm backend to support the JSFFI logic.
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- Feb 12, 2024
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Resolves #24421
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Add support for heap profiling while using the nonmoving collector. We greatly simply the implementation by disabling concurrent collection for GCs when heap profiling is enabled. This entails that the marked objects on the nonmoving heap are exactly the live objects. Note that we match the behaviour for live bytes accounting by taking the size of objects on the nonmoving heap to be that of the segment's block rather than the object itself. Resolves #22221
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Just remove an out of date block of commented-out code, and tidy up the relevant Notes. See #8317.
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emcc would sometime output messages like: cache:INFO: generating system asset: symbol_lists/424b44514e43d789148e69e4e7d1c7fdc0350b79.json... (this will be cached in "/emsdk/upstream/emscripten/cache/symbol_lists/424b44514e43d789148e69e4e7d1c7fdc0350b79.json" for subsequent builds) cache:INFO: - ok Cf https://github.com/emscripten-core/emscripten/issues/18607 This breaks our tests matching the stderr output. We avoid this by setting EMCC_LOGGING=0
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Support linking C sources with JS output of the JavaScript backend. See the added documentation in the users guide. The implementation simply extends the JS linker to use the objects (.o) that were already produced by the emcc compiler and which were filtered out previously. I've also added some options to control the link with C functions (see the documentation about pragmas). With this change I've successfully compiled the direct-sqlite package which embeds the sqlite.c database code. Some wrappers are still required (see the documentation about wrappers) but everything generic enough to be reused for other libraries have been integrated into rts/js/mem.js.
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This isn't implemented for JS backend objects.
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Some Haskell codes unsafely cast StablePtr into ptr to compare against NULL. E.g. in direct-sqlite: if castStablePtrToPtr aggStPtr /= nullPtr then where `aggStPtr` is read (`peek`) from zeroed memory initially. We fix this by giving these StablePtr the same representation as other null pointers. It's safe because StablePtr at offset 0 is unused (for this exact reason).
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- Feb 10, 2024
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The only changes here are that clang15 is now installed on the alpine-3_18 image.
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Fixes: - #24409 Follow on from: - #21078 and MR !9133 - When we added the JS backend this was forgotten. This patch adds the rightful codeowners.
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