Merge branch 'master' into pv-compiler-timings-lock

CONTRIBUTING.md

@@ -293,7 +293,7 @@ The process of [creating a patch release](https://docs.julialang.org/en/v1/devdo
 6. Ping `@JuliaLang/releases` to tag the patch release and update the website.
 
 7. Open a pull request that bumps the version of the relevant minor release to the
-   next prerelase patch version, e.g. as in [this pull request](https://github.com/JuliaLang/julia/pull/37724).
+   next prerelease patch version, e.g. as in [this pull request](https://github.com/JuliaLang/julia/pull/37724).
 
 Step 2 above, i.e. backporting commits to the `backports-release-X.Y` branch, has largely
 been automated via [`Backporter`](https://github.com/KristofferC/Backporter): Backporter

HISTORY.md

@@ -25,6 +25,9 @@ Language changes
 Compiler/Runtime improvements
 -----------------------------
 
+* Time to first execution (TTFX, sometimes called time to first plot) is greatly reduced. Package precompilation now
+  saves native code into a "pkgimage", meaning that code generated during the precompilation process will not
+  require compilation after package load. Use of pkgimages can be disabled via `--pkgimages=no` ([#44527]) ([#47184]).
 * The known quadratic behavior of type inference is now fixed and inference uses less memory in general.
   Certain edge cases with auto-generated long functions (e.g. ModelingToolkit.jl with partial
   differential equations and large causal models) should see significant compile-time improvements ([#45276], [#45404]).
@@ -65,8 +68,6 @@ New library functions
 ---------------------
 
 * New function `Iterators.flatmap` ([#44792]).
-* New helper `Splat(f)` which acts like `x -> f(x...)`, with pretty printing for
-  inspecting which function `f` was originally wrapped ([#42717]).
 * New `pkgversion(m::Module)` function to get the version of the package that loaded
   a given module, similar to `pkgdir(m::Module)` ([#45607]).
 * New function `stack(x)` which generalises `reduce(hcat, x::Vector{<:Vector})` to any dimensionality,
@@ -95,6 +96,8 @@ Standard library changes
 * `@kwdef` is now exported and added to the public API ([#46273]).
 * An issue with order of operations in `fld1` is now fixed ([#28973]).
 * Sorting is now always stable by default, as `QuickSort` was stabilized ([#45222]).
+* `Base.splat` is now exported. The return value is now a `Base.Splat` instead
+  of an anonymous function, which allows for pretty printing ([#42717]).
 
 #### Package Manager
 
@@ -178,7 +181,6 @@ Standard library changes
 Deprecated or removed
 ---------------------
 
-* Unexported `splat` is deprecated in favor of exported `Splat`, which has pretty printing of the wrapped function ([#42717]).
 
 External dependencies
 ---------------------

NEWS.md

@@ -82,6 +82,10 @@ Standard library changes
 #### DelimitedFiles
 
 
+#### InteractiveUtils
+
+ * `code_native` and `@code_native` now default to intel syntax instead of AT&T.
+
 Deprecated or removed
 ---------------------
 

base/abstractarray.jl

@@ -936,7 +936,7 @@ end
 
 ## from general iterable to any array
 
-# This is `@Experimental.max_methods 1 function copyto! end`, which is not
+# This is `Experimental.@max_methods 1 function copyto! end`, which is not
 # defined at this point in bootstrap.
 typeof(function copyto! end).name.max_methods = UInt8(1)
 

base/abstractdict.jl

@@ -575,7 +575,7 @@ function convert(::Type{T}, x::AbstractDict) where T<:AbstractDict
 end
 
 # hashing objects by identity
-_tablesz(x::T) where T <: Integer = x < 16 ? T(16) : one(T)<<((sizeof(T)<<3)-leading_zeros(x-one(T)))
+_tablesz(x::T) where T <: Integer = x < 16 ? T(16) : one(T)<<(top_set_bit(x-one(T)))
 
 TP{K,V} = Union{Type{Tuple{K,V}},Type{Pair{K,V}}}
 

base/binaryplatforms.jl

@@ -873,7 +873,7 @@ function detect_libstdcxx_version(max_minor_version::Int=30)
     end
 
     # Brute-force our way through GLIBCXX_* symbols to discover which version we're linked against
-    hdl = Libdl.dlopen(first(libstdcxx_paths))
+    hdl = Libdl.dlopen(first(libstdcxx_paths))::Ptr{Cvoid}
     # Try all GLIBCXX versions down to GCC v4.8:
     # https://gcc.gnu.org/onlinedocs/libstdc++/manual/abi.html
     for minor_version in max_minor_version:-1:18

base/bitarray.jl

@@ -1545,12 +1545,12 @@ function unsafe_bitfindprev(Bc::Vector{UInt64}, start::Int)
 
     @inbounds begin
         if Bc[chunk_start] & mask != 0
-            return (chunk_start-1) << 6 + (64 - leading_zeros(Bc[chunk_start] & mask))
+            return (chunk_start-1) << 6 + (top_set_bit(Bc[chunk_start] & mask))
         end
 
         for i = (chunk_start-1):-1:1
             if Bc[i] != 0
-                return (i-1) << 6 + (64 - leading_zeros(Bc[i]))
+                return (i-1) << 6 + (top_set_bit(Bc[i]))
             end
         end
     end

base/boot.jl

@@ -414,25 +414,13 @@ eval(Core, quote
     end
     LineInfoNode(mod::Module, @nospecialize(method), file::Symbol, line::Int32, inlined_at::Int32) =
         $(Expr(:new, :LineInfoNode, :mod, :method, :file, :line, :inlined_at))
-    GlobalRef(m::Module, s::Symbol, binding::Ptr{Nothing}) = $(Expr(:new, :GlobalRef, :m, :s, :binding))
     SlotNumber(n::Int) = $(Expr(:new, :SlotNumber, :n))
     TypedSlot(n::Int, @nospecialize(t)) = $(Expr(:new, :TypedSlot, :n, :t))
     PhiNode(edges::Array{Int32, 1}, values::Array{Any, 1}) = $(Expr(:new, :PhiNode, :edges, :values))
     PiNode(@nospecialize(val), @nospecialize(typ)) = $(Expr(:new, :PiNode, :val, :typ))
     PhiCNode(values::Array{Any, 1}) = $(Expr(:new, :PhiCNode, :values))
     UpsilonNode(@nospecialize(val)) = $(Expr(:new, :UpsilonNode, :val))
     UpsilonNode() = $(Expr(:new, :UpsilonNode))
-    function CodeInstance(
-        mi::MethodInstance, @nospecialize(rettype), @nospecialize(inferred_const),
-        @nospecialize(inferred), const_flags::Int32, min_world::UInt, max_world::UInt,
-        ipo_effects::UInt32, effects::UInt32, @nospecialize(argescapes#=::Union{Nothing,Vector{ArgEscapeInfo}}=#),
-        relocatability::UInt8)
-        return ccall(:jl_new_codeinst, Ref{CodeInstance},
-            (Any, Any, Any, Any, Int32, UInt, UInt, UInt32, UInt32, Any, UInt8),
-            mi, rettype, inferred_const, inferred, const_flags, min_world, max_world,
-            ipo_effects, effects, argescapes,
-            relocatability)
-    end
     Const(@nospecialize(v)) = $(Expr(:new, :Const, :v))
     # NOTE the main constructor is defined within `Core.Compiler`
     _PartialStruct(@nospecialize(typ), fields::Array{Any, 1}) = $(Expr(:new, :PartialStruct, :typ, :fields))
@@ -441,6 +429,18 @@ eval(Core, quote
     MethodMatch(@nospecialize(spec_types), sparams::SimpleVector, method::Method, fully_covers::Bool) = $(Expr(:new, :MethodMatch, :spec_types, :sparams, :method, :fully_covers))
 end)
 
+function CodeInstance(
+    mi::MethodInstance, @nospecialize(rettype), @nospecialize(inferred_const),
+    @nospecialize(inferred), const_flags::Int32, min_world::UInt, max_world::UInt,
+    ipo_effects::UInt32, effects::UInt32, @nospecialize(argescapes#=::Union{Nothing,Vector{ArgEscapeInfo}}=#),
+    relocatability::UInt8)
+    return ccall(:jl_new_codeinst, Ref{CodeInstance},
+        (Any, Any, Any, Any, Int32, UInt, UInt, UInt32, UInt32, Any, UInt8),
+        mi, rettype, inferred_const, inferred, const_flags, min_world, max_world,
+        ipo_effects, effects, argescapes,
+        relocatability)
+end
+GlobalRef(m::Module, s::Symbol) = ccall(:jl_module_globalref, Ref{GlobalRef}, (Any, Any), m, s)
 Module(name::Symbol=:anonymous, std_imports::Bool=true, default_names::Bool=true) = ccall(:jl_f_new_module, Ref{Module}, (Any, Bool, Bool), name, std_imports, default_names)
 
 function _Task(@nospecialize(f), reserved_stack::Int, completion_future)
@@ -524,12 +524,12 @@ module IR
 export CodeInfo, MethodInstance, CodeInstance, GotoNode, GotoIfNot, ReturnNode,
     NewvarNode, SSAValue, Slot, SlotNumber, TypedSlot, Argument,
     PiNode, PhiNode, PhiCNode, UpsilonNode, LineInfoNode,
-    Const, PartialStruct, InterConditional, PartialOpaque
+    Const, PartialStruct
 
 import Core: CodeInfo, MethodInstance, CodeInstance, GotoNode, GotoIfNot, ReturnNode,
     NewvarNode, SSAValue, Slot, SlotNumber, TypedSlot, Argument,
     PiNode, PhiNode, PhiCNode, UpsilonNode, LineInfoNode,
-    Const, PartialStruct, InterConditional, PartialOpaque
+    Const, PartialStruct
 
 end
 
@@ -818,8 +818,6 @@ Unsigned(x::Union{Float16, Float32, Float64, Bool}) = UInt(x)
 Integer(x::Integer) = x
 Integer(x::Union{Float16, Float32, Float64}) = Int(x)
 
-GlobalRef(m::Module, s::Symbol) = GlobalRef(m, s, bitcast(Ptr{Nothing}, 0))
-
 # Binding for the julia parser, called as
 #
 #    Core._parse(text, filename, lineno, offset, options)

base/cmd.jl

@@ -230,7 +230,7 @@ function cstr(s)
     if Base.containsnul(s)
         throw(ArgumentError("strings containing NUL cannot be passed to spawned processes"))
     end
-    return String(s)
+    return String(s)::String
 end
 
 # convert various env representations into an array of "key=val" strings