Add _unsetindex! methods for SubArrays and CartesianIndexes
#53383
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oscardssmith
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Feb 19, 2024
vtjnash
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Feb 19, 2024
Co-authored-by: Jameson Nash <vtjnash@gmail.com>
tecosaur
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Mar 4, 2024
…liaLang#53383) With this, the following (and equivalent calls) work: ```julia julia> copyto!(view(zeros(BigInt, 2), 1:2), Vector{BigInt}(undef,2)) 2-element view(::Vector{BigInt}, 1:2) with eltype BigInt: #undef #undef julia> copyto!(view(zeros(BigInt, 2), 1:2), view(Vector{BigInt}(undef,2), 1:2)) 2-element view(::Vector{BigInt}, 1:2) with eltype BigInt: #undef #undef ``` Close JuliaLang#53098. With this, all the `_unsetindex!` branches in `copyto_unaliased!` work for `Array`-views, and this makes certain indexing operations vectorize and speed-up: ```julia julia> using BenchmarkTools julia> a = view(rand(100,100), 1:100, 1:100); b = view(similar(a), axes(a)...); julia> @Btime copyto!($b, $a); 16.427 μs (0 allocations: 0 bytes) # master 2.308 μs (0 allocations: 0 bytes) # PR ``` Improves (but doesn't resolve) JuliaLang#40962 and JuliaLang#53158 ```julia julia> a = rand(40,40); b = rand(40,40); julia> @Btime $a[1:end,1:end] .= $b; 5.383 μs (0 allocations: 0 bytes) # v"1.12.0-DEV.16" 3.194 μs (0 allocations: 0 bytes) # PR ``` ƒ Co-authored-by: Jameson Nash <vtjnash@gmail.com>
mkitti
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Mar 7, 2024
…liaLang#53383) With this, the following (and equivalent calls) work: ```julia julia> copyto!(view(zeros(BigInt, 2), 1:2), Vector{BigInt}(undef,2)) 2-element view(::Vector{BigInt}, 1:2) with eltype BigInt: #undef #undef julia> copyto!(view(zeros(BigInt, 2), 1:2), view(Vector{BigInt}(undef,2), 1:2)) 2-element view(::Vector{BigInt}, 1:2) with eltype BigInt: #undef #undef ``` Close JuliaLang#53098. With this, all the `_unsetindex!` branches in `copyto_unaliased!` work for `Array`-views, and this makes certain indexing operations vectorize and speed-up: ```julia julia> using BenchmarkTools julia> a = view(rand(100,100), 1:100, 1:100); b = view(similar(a), axes(a)...); julia> @Btime copyto!($b, $a); 16.427 μs (0 allocations: 0 bytes) # master 2.308 μs (0 allocations: 0 bytes) # PR ``` Improves (but doesn't resolve) JuliaLang#40962 and JuliaLang#53158 ```julia julia> a = rand(40,40); b = rand(40,40); julia> @Btime $a[1:end,1:end] .= $b; 5.383 μs (0 allocations: 0 bytes) # v"1.12.0-DEV.16" 3.194 μs (0 allocations: 0 bytes) # PR ``` ƒ Co-authored-by: Jameson Nash <vtjnash@gmail.com>
KristofferC
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Mar 27, 2024
…3383) With this, the following (and equivalent calls) work: ```julia julia> copyto!(view(zeros(BigInt, 2), 1:2), Vector{BigInt}(undef,2)) 2-element view(::Vector{BigInt}, 1:2) with eltype BigInt: #undef #undef julia> copyto!(view(zeros(BigInt, 2), 1:2), view(Vector{BigInt}(undef,2), 1:2)) 2-element view(::Vector{BigInt}, 1:2) with eltype BigInt: #undef #undef ``` Close #53098. With this, all the `_unsetindex!` branches in `copyto_unaliased!` work for `Array`-views, and this makes certain indexing operations vectorize and speed-up: ```julia julia> using BenchmarkTools julia> a = view(rand(100,100), 1:100, 1:100); b = view(similar(a), axes(a)...); julia> @Btime copyto!($b, $a); 16.427 μs (0 allocations: 0 bytes) # master 2.308 μs (0 allocations: 0 bytes) # PR ``` Improves (but doesn't resolve) #40962 and #53158 ```julia julia> a = rand(40,40); b = rand(40,40); julia> @Btime $a[1:end,1:end] .= $b; 5.383 μs (0 allocations: 0 bytes) # v"1.12.0-DEV.16" 3.194 μs (0 allocations: 0 bytes) # PR ``` ƒ Co-authored-by: Jameson Nash <vtjnash@gmail.com> (cherry picked from commit 1a90409)
KristofferC
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Apr 9, 2024
Backported PRs: - [x] #53757 <!-- Add an IndexStyle example to the diagind docstring --> - [x] #53809 <!-- Add missing GC_POP() in emit_cfunction --> - [x] #53789 <!-- also check that UUID of project is non-null when treating it as a package --> - [x] #53805 <!-- precompilepkgs: simplify custom config printing if only one --> - [x] #53822 <!-- Bump libuv --> - [x] #53837 <!-- update MPFR to 4.2.1 --> - [x] #53862 <!-- precompilepkgs: fix error reporting --> - [x] #53774 <!-- Remove some duplicates from emitted compilation traces --> - [ ] #53696 <!-- add invokelatest to on_done callback in bracketed paste --> - [x] #53383 <!-- Add `_unsetindex!` methods for `SubArray`s and `CartesianIndex`es --> - [x] #53475 <!-- Fix boundscheck in unsetindex for SubArrays --> - [x] #53888 - [x] #53870 <!-- Revert change to checksum for llvm-julia --> - [x] #53906 <!-- Add `Base.isrelocatable(pkg)` --> - [x] #53833 <!-- Profile: make heap snapshots viewable in vscode viewer --> - [x] #53961 <!-- `LazyString` in `LinearAlgebra.checksquare` error message --> - [x] #53962 <!-- Use StringMemory instead of StringVector where possible --> - [x] #53825 <!-- profile: doc: update the `Allocs.@profile` doc string --> - [x] #53975 <!-- `LazyString` in `DimensionMismatch` error messages in broadcasting --> - [x] #53905 <!-- Avoid repeated precompilation when loading from non-relocatable cachefiles --> - [x] #53896 <!-- Make reshape and view on Memory produce Arrays and delete wrap --> - [x] #53991 <!-- Test and fix non-int-length bug in `view(::Memory, ::Union{UnitRange, Base.OneTo})` -->
lazarusA
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Jul 12, 2024
…x`es (JuliaLang#53383)" This reverts commit 1a90409.
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With this, the following (and equivalent calls) work:
Close #53098. With this, all the
_unsetindex!branches incopyto_unaliased!work forArray-views, and this makes certain indexing operations vectorize and speed-up:Improves (but doesn't resolve) #40962 and #53158