inference: permit recursive type traits #50694
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We had a special case for Type that disallowed type trait recursion in favor of a pattern that almost never appears in code (only once in the compiler by accident where it doesn't matter). This was unnecessarily confusing and unexpected to predict what can infer, and made traits harder than necessary (such as Broadcast.ndims since 70fc3cd). Fix #43296 Fix #43368
vtjnash
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aviatesk
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Aug 1, 2023
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We might want to check with a heavy compilation benchmark on this (something like JuliaCI/BaseBenchmarks.jl#313), but I am comfortable with merging this without it if you think it's okay, as the heavy benchmark PR is not yet completed.
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@nanosoldier |
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Your benchmark job has completed - possible performance regressions were detected. A full report can be found here. |
brenhinkeller
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IanButterworth
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Aug 19, 2023
We had a special case for Type that disallowed type trait recursion in favor of a pattern that almost never appears in code (only once in the compiler by accident where it doesn't matter). This was unnecessarily confusing and unexpected to predict what can infer, and made traits harder than necessary (such as Broadcast.ndims since 70fc3cd). Fix #43296 Fix #43368 (cherry picked from commit 33e3d9f)
58 tasks
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This caused the following regression: https://s3.amazonaws.com/julialang-reports/nanosoldier/pkgeval/by_hash/491dfb5_vs_a468aa1/AccessorsExtra.primary.log |
KristofferC
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Oct 2, 2023
Backported PRs: - [x] #48625 <!-- add replace(io, str, patterns...) --> - [x] #48387 <!-- Improve documentation of sort-related functions --> - [x] #48363 <!-- Revise sort.md and docstrings in sort.jl --> - [x] #48977 <!-- Update SparseArrays.jl stdlib for SuiteSparse 7 --> - [x] #50719 <!-- fix `CyclePadding(::DataType)` --> - [x] #50694 <!-- inference: permit recursive type traits --> - [x] #50860 <!-- Add `Base.get_extension` to docs/API --> - [x] #50594 <!-- Disallow non-index Integer types in isassigned --> - [x] #50802 <!-- Makes IntrusiveLinkedListSynchronized mutable to avoid allocation on poptask --> - [x] #50858 <!-- Add a `threadpool` parameter to `Channel` constructor --> - [x] #50874 <!-- Restrict COFF to a single thread when symbol count is high --> - [x] #50822 <!-- Add default method for setmodifiers! --> - [x] #50730 <!-- Fix integer overflow in `isapprox` --> - [x] #50850 <!-- Remove weird Rational dispatch and add pi functions to list --> - [x] #50809 <!-- Limit type-printing in MethodError --> - [x] #50915 <!-- Add note the `Task` about sticky bit --> - [x] #50929 <!-- when widening tuple types in tmerge, only widen the complex parts --> - [x] #50928 <!-- Bump JuliaSyntax to 0.4.6 --> - [x] #50959 <!-- Update libssh2 patches --> - [x] #50823 <!-- Make ranges more robust with unsigned indexes. --> - [x] #48542 <!-- Add docs on task-specific buffering using multithreading --> - [x] #50912 <!-- Separate foreign threads into a :foreign threadpool --> - [x] #51010 <!-- Add ORIGIN to SuiteSparse rpath on Linux/FreeBSD --> - [x] #50753 <!-- cat: remove unused promote_eltype methods that confuse inference --> - [x] #51027 <!-- Implement realloc accounting correctly --> - [x] #51019 <!-- fix a case of potentially use of undefined variable when handling error in distributed message processing --> - [x] #51039 <!-- Revert "Optimize findall(f, ::AbstractArray{Bool}) (#42202)" --> - [x] #51036 <!-- add missing invoke edge for nospecialize targets --> - [x] #51042 <!-- inference: fix return_type_tfunc modeling of concrete functions --> - [x] #51114 <!-- Workaround upstream FreeBSD issue #272992 --> - [x] #50892 <!-- Add `JL_DLLIMPORT` to `small_typeof` declaration --> - [x] #51154 <!-- broadcast: use recursion rather than ntuple to map over a tuple --> - [x] #51153 <!-- fix debug typo in "add missing invoke edge for nospecialize targets (#51036)" --> - [x] #51222 <!-- Check again if the tty is open inside the IO lock --> - [x] #51236 <!-- Add lock around uv_unref during init --> - [x] #51243 <!-- GMP: Gracefully handle more overflows. --> - [x] #51254 <!-- Ryu: make sure adding zeros does not overwrite trailing dot --> - [x] #51175 <!-- shorten stale_age for cachefile lock --> - [x] #51300 <!-- fix method definition error for bad vararg --> - [x] #51307 <!-- fix force-throw ctrl-C on Windows --> - [x] #51303 <!-- ensure revising structs is safe --> - [x] #51393 - [x] #51403 Need manual backport: - [x] #51009 <!-- fix #50562, regression in `in` of tuple of Symbols --> - [x] #51053 <!-- Bump Statistics stdlib --> - [x] #51013 <!-- fix #50709, type bound error due to free typevar in sparam env --> - [x] #51305 <!-- reduce test time for rounding and floatfuncs --> Contains multiple commits, manual intervention needed: - [ ] #50663 <!-- Fix Expr(:loopinfo) codegen --> - [ ] #51035 <!-- refactor GC scanning code to reflect jl_binding_t are now first class --> - [ ] #51092 <!-- inference: fix bad effects for recursion --> - [x] #51247 <!-- Check if malloc has succeeded before incrementing gc stats --> - [x] #51294 <!-- use LibGit2_jll for LibGit2 library --> Non-merged PRs with backport label: - [ ] #51132 <!-- Handle `AbstractQ` in concatenation --> - [x] #51029 <!-- testdefs: make sure that if a test set changes the active project, they change it back when they're done --> - [ ] #50919 <!-- Code loading: do the "skipping mtime check for stdlib" check regardless of the value of `ispath(f)` --> - [ ] #50824 <!-- Add some aliasing warnings to docstrings for mutating functions --> - [x] #50385 <!-- Precompile pidlocks: add to NEWS and docs --> - [ ] #49805 <!-- Limit TimeType subtraction to AbstractDateTime -->
KristofferC
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nalimilan
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Nov 5, 2023
We had a special case for Type that disallowed type trait recursion in favor of a pattern that almost never appears in code (only once in the compiler by accident where it doesn't matter). This was unnecessarily confusing and unexpected to predict what can infer, and made traits harder than necessary (such as Broadcast.ndims since 70fc3cd). Fix #43296 Fix #43368 (cherry picked from commit 33e3d9f)
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We had a special case for Type that disallowed type trait recursion in favor of a pattern that almost never appears in code (only once in the compiler by accident where it doesn't matter). This was unnecessarily confusing and unexpected to predict what can infer, and made traits harder than necessary (such as Broadcast.ndims since 70fc3cd).
Fix #43296
Fix #43368