From 9bd498d7d0c5ca7a6beb8e025c33b043ea8e6ce7 Mon Sep 17 00:00:00 2001
From: Kristoffer Carlsson <kcarlsson89@gmail.com>
Date: Thu, 2 Jan 2020 17:15:46 +0100
Subject: [PATCH 01/31] outline rng length assert

(cherry picked from commit d723ceefeba39d12d874a124aa8e37014d1b44ec)
---
 stdlib/Random/src/RNGs.jl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/stdlib/Random/src/RNGs.jl b/stdlib/Random/src/RNGs.jl
index a10f820edef65..9b1d2fce6ac1e 100644
--- a/stdlib/Random/src/RNGs.jl
+++ b/stdlib/Random/src/RNGs.jl
@@ -295,7 +295,7 @@ seed!(seed::Union{Integer,Vector{UInt32}}) = seed!(default_rng(), seed)
 const THREAD_RNGs = MersenneTwister[]
 @inline default_rng() = default_rng(Threads.threadid())
 @noinline function default_rng(tid::Int)
-    @assert 0 < tid <= length(THREAD_RNGs)
+    0 < tid <= length(THREAD_RNGs) || _rng_length_assert()
     if @inbounds isassigned(THREAD_RNGs, tid)
         @inbounds MT = THREAD_RNGs[tid]
     else
@@ -304,6 +304,8 @@ const THREAD_RNGs = MersenneTwister[]
     end
     return MT
 end
+@noinline _rng_length_assert() =  @assert false "0 < tid <= length(THREAD_RNGs)"
+
 function __init__()
     resize!(empty!(THREAD_RNGs), Threads.nthreads()) # ensures that we didn't save a bad object
 end

From 03fc5306efe99fda5beb395d5ff60f64aad89137 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Thu, 2 Jan 2020 17:03:56 -0500
Subject: [PATCH 02/31] fix #33954, recursion through field types in
 `is_derived_type` (#34223)

(cherry picked from commit 8b57f642c45b6158db0dce145e1c1aa8c1ba425c)
---
 base/compiler/typelimits.jl | 15 ---------------
 src/datatype.c              |  3 +++
 test/compiler/inference.jl  |  7 +++++++
 test/core.jl                | 16 ++++++++++++++++
 4 files changed, 26 insertions(+), 15 deletions(-)

diff --git a/base/compiler/typelimits.jl b/base/compiler/typelimits.jl
index 48f38ff7980aa..dec0e60aa260a 100644
--- a/base/compiler/typelimits.jl
+++ b/base/compiler/typelimits.jl
@@ -57,21 +57,6 @@ function is_derived_type(@nospecialize(t), @nospecialize(c), mindepth::Int)
         for p in cP
             is_derived_type(t, p, mindepth) && return true
         end
-        if isconcretetype(c) && isbitstype(c)
-            # see if it was extracted from a fieldtype
-            # however, only look through types that can be inlined
-            # to ensure monotonicity of derivation
-            # since we know that for immutable, concrete, bits types,
-            # the field types must have been constructed prior to the type,
-            # it cannot have a reference cycle in the type graph
-            cF = c.types
-            for f in cF
-                # often a parameter is also a field type; avoid searching twice
-                if !contains_is(c.parameters, f)
-                    is_derived_type(t, f, mindepth) && return true
-                end
-            end
-        end
     end
     return false
 end
diff --git a/src/datatype.c b/src/datatype.c
index aef6245f2c61a..57f2111127bfa 100644
--- a/src/datatype.c
+++ b/src/datatype.c
@@ -306,6 +306,8 @@ static int references_name(jl_value_t *p, jl_typename_t *name) JL_NOTSAFEPOINT
     if (jl_is_datatype(p)) {
         if (((jl_datatype_t*)p)->name == name)
             return 1;
+        if (((jl_datatype_t*)p)->layout && jl_datatype_nfields(p) == 0)
+            return 0;
         size_t i, l = jl_nparams(p);
         for (i = 0; i < l; i++) {
             if (references_name(jl_tparam(p, i), name))
@@ -401,6 +403,7 @@ void jl_compute_field_offsets(jl_datatype_t *st)
             jl_value_t *fld = jl_svecref(w->types, i);
             if (references_name(fld, w->name)) {
                 isinlinealloc = 0;
+                isbitstype = 0;
                 break;
             }
         }
diff --git a/test/compiler/inference.jl b/test/compiler/inference.jl
index 5f78cf7c97269..b275cdf904757 100644
--- a/test/compiler/inference.jl
+++ b/test/compiler/inference.jl
@@ -2485,3 +2485,10 @@ end
 # constant prop of `Symbol("")`
 f_getf_computed_symbol(p) = getfield(p, Symbol("first"))
 @test Base.return_types(f_getf_computed_symbol, Tuple{Pair{Int8,String}}) == [Int8]
+
+# issue #33954
+struct X33954
+    x::Ptr{X33954}
+end
+f33954(x) = rand(Bool) ? f33954((x,)) : x
+@test Base.return_types(f33954, Tuple{X33954})[1] >: X33954
diff --git a/test/core.jl b/test/core.jl
index 57a4f64688758..2fe30592e9f14 100644
--- a/test/core.jl
+++ b/test/core.jl
@@ -7140,3 +7140,19 @@ end
 struct SplatBadIterate; end
 Base.iterate(s::SplatBadIterate, args...) = ()
 @test_throws BoundsError (SplatBadIterate()...,)
+
+# issue #33954, layout with circular type parameters but not fields
+struct P33954{T}
+end
+struct A33954
+    x::P33954{A33954}
+end
+@test isbitstype(Tuple{A33954})
+struct Q33954{T}
+    x::Int
+end
+struct B33954
+    x::Q33954{B33954}
+end
+@test_broken isbitstype(Tuple{B33954})
+@test_broken isbitstype(B33954)

From e6b2a8ef818a5f8f2069130370529bbbc91a4167 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Fri, 3 Jan 2020 14:01:08 -0500
Subject: [PATCH 03/31] fix codegen for getfield of homogeneous tuples (#34243)

fix #34206, fix #34207

(cherry picked from commit 007cb29e9d435026df87c330f9fc0df9907c9525)
---
 src/codegen.cpp | 5 ++++-
 test/core.jl    | 8 ++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/codegen.cpp b/src/codegen.cpp
index deafe43d8a399..a7ee60d934e8c 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -2903,8 +2903,11 @@ static bool emit_builtin_call(jl_codectx_t &ctx, jl_cgval_t *ret, jl_value_t *f,
                                 emit_datatype_nfields(ctx, emit_typeof_boxed(ctx, obj)),
                                 jl_true);
                         }
+                        bool isboxed = !jl_datatype_isinlinealloc(jt);
                         Value *ptr = maybe_decay_tracked(data_pointer(ctx, obj));
-                        *ret = typed_load(ctx, ptr, vidx, jt, obj.tbaa, nullptr, false);
+                        *ret = typed_load(ctx, ptr, vidx,
+                                isboxed ? (jl_value_t*)jl_any_type : jt,
+                                obj.tbaa, nullptr, false);
                         return true;
                     }
                 }
diff --git a/test/core.jl b/test/core.jl
index 2fe30592e9f14..23ed03072ea5a 100644
--- a/test/core.jl
+++ b/test/core.jl
@@ -7156,3 +7156,11 @@ struct B33954
 end
 @test_broken isbitstype(Tuple{B33954})
 @test_broken isbitstype(B33954)
+
+# Issue #34206/34207
+function mre34206(a, n)
+    va = view(a, :)
+    b = ntuple(_ -> va, n)::Tuple{Vararg{typeof(va)}}
+    return b[1].offset1
+end
+@test mre34206([44], 1) == 0

From fb402c258f08ef00ac9a3a917380095c4022bda4 Mon Sep 17 00:00:00 2001
From: Matt Bauman <mbauman@juliacomputing.com>
Date: Fri, 3 Jan 2020 15:29:37 -0500
Subject: [PATCH 04/31] fix #32442, broadcasting over non-offset arrays with
 mismatched axis eltypes (#34230)

In cases where we have multiple arrays with `OneTo` axes that do not share the same axis eltype, we should simply default to constructing a new array with `OneTo{Int}` axes.

(cherry picked from commit 11e7c3377163fb730b81b0e782e37f5958ffa747)
---
 base/broadcast.jl |  1 +
 test/ranges.jl    | 52 +++++++++++++++++++++++++++++++----------------
 2 files changed, 35 insertions(+), 18 deletions(-)

diff --git a/base/broadcast.jl b/base/broadcast.jl
index a27cb7ba74180..e68253c03ec24 100644
--- a/base/broadcast.jl
+++ b/base/broadcast.jl
@@ -496,6 +496,7 @@ _bcsm(a::Number, b::Number) = a == b || b == 1
 # (We may not want to define general promotion rules between, say, OneTo and Slice, but if
 #  we get here we know the axes are at least consistent for the purposes of broadcasting)
 axistype(a::T, b::T) where T = a
+axistype(a::OneTo, b::OneTo) = OneTo{Int}(a)
 axistype(a, b) = UnitRange{Int}(a)
 
 ## Check that all arguments are broadcast compatible with shape
diff --git a/test/ranges.jl b/test/ranges.jl
index 878cd48077db7..4c3ef70d6d480 100644
--- a/test/ranges.jl
+++ b/test/ranges.jl
@@ -572,24 +572,40 @@ end
     @test sum(0:0.000001:1) == 500000.5
     @test sum(0:0.1:10) == 505.
 end
-@testset "broadcasted operations with scalars" begin
-    @test broadcast(-, 1:3) === -1:-1:-3
-    @test broadcast(-, 1:3, 2) === -1:1
-    @test broadcast(-, 1:3, 0.25) === 1-0.25:3-0.25
-    @test broadcast(+, 1:3) === 1:3
-    @test broadcast(+, 1:3, 2) === 3:5
-    @test broadcast(+, 1:3, 0.25) === 1+0.25:3+0.25
-    @test broadcast(+, 1:2:6, 1) === 2:2:6
-    @test broadcast(+, 1:2:6, 0.3) === 1+0.3:2:5+0.3
-    @test broadcast(-, 1:2:6, 1) === 0:2:4
-    @test broadcast(-, 1:2:6, 0.3) === 1-0.3:2:5-0.3
-    @test broadcast(-, 2, 1:3) === 1:-1:-1
-end
-@testset "operations between ranges and arrays" begin
-    @test all(([1:5;] + (5:-1:1)) .== 6)
-    @test all(((5:-1:1) + [1:5;]) .== 6)
-    @test all(([1:5;] - (1:5)) .== 0)
-    @test all(((1:5) - [1:5;]) .== 0)
+@testset "broadcasted operations with scalars" for T in (Int, UInt, Int128)
+    @test broadcast(-, T(1):3, 2) === T(1)-2:1
+    @test broadcast(-, T(1):3, 0.25) === T(1)-0.25:3-0.25
+    @test broadcast(+, T(1):3) === T(1):3
+    @test broadcast(+, T(1):3, 2) === T(3):5
+    @test broadcast(+, T(1):3, 0.25) === T(1)+0.25:3+0.25
+    @test broadcast(+, T(1):2:6, 1) === T(2):2:6
+    @test broadcast(+, T(1):2:6, 0.3) === T(1)+0.3:2:5+0.3
+    @test broadcast(-, T(1):2:6, 1) === T(0):2:4
+    @test broadcast(-, T(1):2:6, 0.3) === T(1)-0.3:2:5-0.3
+    if T <: Unsigned
+        @test_broken broadcast(-, T(1):3) == -T(1):-1:-T(3)
+        @test_broken broadcast(-, 2, T(1):3) == T(1):-1:-T(1)
+    else
+        @test length(broadcast(-, T(1):3, 2)) === length(T(1)-2:T(3)-2)
+        @test broadcast(-, T(1):3) == -T(1):-1:-T(3)
+        @test broadcast(-, 2, T(1):3) == T(1):-1:-T(1)
+    end
+end
+@testset "operations between ranges and arrays" for T in (Int, UInt, Int128)
+    @test all(([T(1):5;] + (T(5):-1:1)) .=== T(6))
+    @test all(((T(5):-1:1) + [T(1):5;]) .=== T(6))
+    @test all(([T(1):5;] - (T(1):5)) .=== T(0))
+    @test all(((T(1):5) - [T(1):5;]) .=== T(0))
+end
+@testset "issue #32442: Broadcasting over views with non-`Int` indices" begin
+    a=rand(UInt32,20)
+    c=rand(UInt64,5)
+    @test reinterpret(UInt64,view(a,UInt64.(11:20))) .- c ==
+          reinterpret(UInt64,view(a,(11:20))) .- c ==
+          reinterpret(UInt64,view(a,(UInt64(11):UInt64(20)))) .- c ==
+          copy(reinterpret(UInt64,view(a,(UInt64(11):UInt64(20))))) .- c
+
+    @test view(a,(Int32(11):Int32(20))) .+ [1] == a[11:20] .+ 1
 end
 @testset "tricky floating-point ranges" begin
     for (start, step, stop, len) in ((1, 1, 3, 3), (0, 1, 3, 4),

From 1c1a70dbbaa8808492660feac733eb2ca4039a35 Mon Sep 17 00:00:00 2001
From: Alan Edelman <mit.edelman@gmail.com>
Date: Tue, 7 Jan 2020 06:30:22 -0500
Subject: [PATCH 05/31] Update svd.jl (#30239)

* Update svd.jl

* Update svd.jl

Make doc more useful to the reader.

* Fix grammar and one trailing whitespace

* Update svd.jl

* Fix doctests

* Avoid duplicating documentation between mutating and non-mutating
versions of svd functions.

* Reorganize generalized svd docstring and doctests

* Break some long lines

Co-authored-by: Viral B. Shah <viral@juliacomputing.com>
Co-authored-by: Andreas Noack <andreas@noack.dk>
(cherry picked from commit cec4c3210986ba045f0d8ecf6396647337361d8e)
---
 stdlib/LinearAlgebra/src/svd.jl | 189 +++++++-------------------------
 1 file changed, 38 insertions(+), 151 deletions(-)

diff --git a/stdlib/LinearAlgebra/src/svd.jl b/stdlib/LinearAlgebra/src/svd.jl
index 843235a615d3b..ccf025be062e4 100644
--- a/stdlib/LinearAlgebra/src/svd.jl
+++ b/stdlib/LinearAlgebra/src/svd.jl
@@ -87,32 +87,7 @@ default_svd_alg(A) = DivideAndConquer()
     svd!(A; full::Bool = false, alg::Algorithm = default_svd_alg(A)) -> SVD
 
 `svd!` is the same as [`svd`](@ref), but saves space by
-overwriting the input `A`, instead of creating a copy.
-
-# Examples
-```jldoctest
-julia> A = [1. 0. 0. 0. 2.; 0. 0. 3. 0. 0.; 0. 0. 0. 0. 0.; 0. 2. 0. 0. 0.]
-4×5 Array{Float64,2}:
- 1.0  0.0  0.0  0.0  2.0
- 0.0  0.0  3.0  0.0  0.0
- 0.0  0.0  0.0  0.0  0.0
- 0.0  2.0  0.0  0.0  0.0
-
-julia> F = svd!(A);
-
-julia> F.U * Diagonal(F.S) * F.Vt
-4×5 Array{Float64,2}:
- 1.0  0.0  0.0  0.0  2.0
- 0.0  0.0  3.0  0.0  0.0
- 0.0  0.0  0.0  0.0  0.0
- 0.0  2.0  0.0  0.0  0.0
-
-julia> A
-4×5 Array{Float64,2}:
- -2.23607   0.0   0.0  0.0  0.618034
-  0.0      -3.0   1.0  0.0  0.0
-  0.0       0.0   0.0  0.0  0.0
-  0.0       0.0  -2.0  0.0  0.0
+overwriting the input `A`, instead of creating a copy. See documentation of [`svd`](@ref) for details.
 ```
 """
 function svd!(A::StridedMatrix{T}; full::Bool = false, alg::Algorithm = default_svd_alg(A)) where T<:BlasFloat
@@ -161,25 +136,21 @@ Another (typically slower but more accurate) option is `alg = QRIteration()`.
 
 # Examples
 ```jldoctest
-julia> A = [1. 0. 0. 0. 2.; 0. 0. 3. 0. 0.; 0. 0. 0. 0. 0.; 0. 2. 0. 0. 0.]
-4×5 Array{Float64,2}:
- 1.0  0.0  0.0  0.0  2.0
- 0.0  0.0  3.0  0.0  0.0
- 0.0  0.0  0.0  0.0  0.0
- 0.0  2.0  0.0  0.0  0.0
+julia> A = rand(4,3);
 
-julia> F = svd(A);
+julia> F = svd(A); # Store the Factorization Object
 
-julia> F.U * Diagonal(F.S) * F.Vt
-4×5 Array{Float64,2}:
- 1.0  0.0  0.0  0.0  2.0
- 0.0  0.0  3.0  0.0  0.0
- 0.0  0.0  0.0  0.0  0.0
- 0.0  2.0  0.0  0.0  0.0
+julia> A ≈ F.U * Diagonal(F.S) * F.Vt
+true
 
-julia> u, s, v = F; # destructuring via iteration
+julia> U, S, V = F; # destructuring via iteration
 
-julia> u == F.U && s == F.S && v == F.V
+julia> A ≈ U * Diagonal(S) * V'
+true
+
+julia> Uonly, = svd(A); # Store U only
+
+julia> Uonly == U
 true
 ```
 """
@@ -217,29 +188,6 @@ Base.propertynames(F::SVD, private::Bool=false) =
 
 Return the singular values of `A`, saving space by overwriting the input.
 See also [`svdvals`](@ref) and [`svd`](@ref).
-
-# Examples
-```jldoctest
-julia> A = [1. 0. 0. 0. 2.; 0. 0. 3. 0. 0.; 0. 0. 0. 0. 0.; 0. 2. 0. 0. 0.]
-4×5 Array{Float64,2}:
- 1.0  0.0  0.0  0.0  2.0
- 0.0  0.0  3.0  0.0  0.0
- 0.0  0.0  0.0  0.0  0.0
- 0.0  2.0  0.0  0.0  0.0
-
-julia> svdvals!(A)
-4-element Array{Float64,1}:
- 3.0
- 2.23606797749979
- 2.0
- 0.0
-
-julia> A
-4×5 Array{Float64,2}:
- -2.23607   0.0   0.0  0.0  0.618034
-  0.0      -3.0   1.0  0.0  0.0
-  0.0       0.0   0.0  0.0  0.0
-  0.0       0.0  -2.0  0.0  0.0
 ```
 """
 svdvals!(A::StridedMatrix{T}) where {T<:BlasFloat} = isempty(A) ? zeros(real(T), 0) : LAPACK.gesdd!('N', A)[2]
@@ -409,41 +357,7 @@ Base.iterate(S::GeneralizedSVD, ::Val{:done}) = nothing
     svd!(A, B) -> GeneralizedSVD
 
 `svd!` is the same as [`svd`](@ref), but modifies the arguments
-`A` and `B` in-place, instead of making copies.
-
-# Examples
-```jldoctest
-julia> A = [1. 0.; 0. -1.]
-2×2 Array{Float64,2}:
- 1.0   0.0
- 0.0  -1.0
-
-julia> B = [0. 1.; 1. 0.]
-2×2 Array{Float64,2}:
- 0.0  1.0
- 1.0  0.0
-
-julia> F = svd!(A, B);
-
-julia> F.U*F.D1*F.R0*F.Q'
-2×2 Array{Float64,2}:
- 1.0   0.0
- 0.0  -1.0
-
-julia> F.V*F.D2*F.R0*F.Q'
-2×2 Array{Float64,2}:
- 0.0  1.0
- 1.0  0.0
-
-julia> A
-2×2 Array{Float64,2}:
- 1.41421   0.0
- 0.0      -1.41421
-
-julia> B
-2×2 Array{Float64,2}:
- 1.0  -0.0
- 0.0  -1.0
+`A` and `B` in-place, instead of making copies. See documentation of [`svd`](@ref) for details.
 ```
 """
 function svd!(A::StridedMatrix{T}, B::StridedMatrix{T}) where T<:BlasFloat
@@ -458,12 +372,11 @@ end
 svd(A::StridedMatrix{T}, B::StridedMatrix{T}) where {T<:BlasFloat} = svd!(copy(A),copy(B))
 
 """
+
     svd(A, B) -> GeneralizedSVD
 
 Compute the generalized SVD of `A` and `B`, returning a `GeneralizedSVD` factorization
-object `F`, such that `A = F.U*F.D1*F.R0*F.Q'` and `B = F.V*F.D2*F.R0*F.Q'`.
-
-For an M-by-N matrix `A` and P-by-N matrix `B`,
+object `F` such that `[A;B] = [F.U * F.D1; F.V * F.D2] * F.R0 * F.Q'`
 
 - `U` is a M-by-M orthogonal matrix,
 - `V` is a P-by-P orthogonal matrix,
@@ -477,35 +390,36 @@ For an M-by-N matrix `A` and P-by-N matrix `B`,
 
 Iterating the decomposition produces the components `U`, `V`, `Q`, `D1`, `D2`, and `R0`.
 
-The entries of `F.D1` and `F.D2` are related, as explained in the LAPACK
-documentation for the
-[generalized SVD](http://www.netlib.org/lapack/lug/node36.html) and the
-[xGGSVD3](http://www.netlib.org/lapack/explore-html/d6/db3/dggsvd3_8f.html)
-routine which is called underneath (in LAPACK 3.6.0 and newer).
+The generalized SVD is used in applications such as when one wants to compare how much belongs 
+to `A` vs. how much belongs to `B`, as in human vs yeast genome, or signal vs noise, or between 
+clusters vs within clusters. (See Edelman and Wang for discussion: https://arxiv.org/abs/1901.00485)
+
+It decomposes `[A; B]` into `[UC; VS]H`, where `[UC; VS]` is a natural orthogonal basis for the 
+column space of `[A; B]`, and `H = RQ'` is a natural non-orthogonal basis for the rowspace of `[A;B]`, 
+where the top rows are most closely attributed to the `A` matrix, and the bottom to the `B` matrix. 
+The multi-cosine/sine matrices `C` and `S` provide a multi-measure of how much `A` vs how much `B`, 
+and `U` and `V` provide directions in which these are measured.
 
 # Examples
 ```jldoctest
-julia> A = [1. 0.; 0. -1.]
-2×2 Array{Float64,2}:
- 1.0   0.0
- 0.0  -1.0
-
-julia> B = [0. 1.; 1. 0.]
-2×2 Array{Float64,2}:
- 0.0  1.0
- 1.0  0.0
+julia> A = randn(3,2); B=randn(4,2);
 
 julia> F = svd(A, B);
 
-julia> F.U*F.D1*F.R0*F.Q'
-2×2 Array{Float64,2}:
- 1.0   0.0
- 0.0  -1.0
+julia> U,V,Q,C,S,R = F;
 
-julia> F.V*F.D2*F.R0*F.Q'
-2×2 Array{Float64,2}:
- 0.0  1.0
- 1.0  0.0
+julia> H = R*Q';
+
+julia> [A; B] ≈ [U*C; V*S]*H
+true
+
+julia> [A; B] ≈ [F.U*F.D1; F.V*F.D2]*F.R0*F.Q'
+true
+
+julia> Uonly, = svd(A,B);
+
+julia> U == Uonly
+true
 ```
 """
 function svd(A::StridedMatrix{TA}, B::StridedMatrix{TB}) where {TA,TB}
@@ -582,33 +496,6 @@ end
 Return the generalized singular values from the generalized singular value
 decomposition of `A` and `B`, saving space by overwriting `A` and `B`.
 See also [`svd`](@ref) and [`svdvals`](@ref).
-
-# Examples
-```jldoctest
-julia> A = [1. 0.; 0. -1.]
-2×2 Array{Float64,2}:
- 1.0   0.0
- 0.0  -1.0
-
-julia> B = [0. 1.; 1. 0.]
-2×2 Array{Float64,2}:
- 0.0  1.0
- 1.0  0.0
-
-julia> svdvals!(A, B)
-2-element Array{Float64,1}:
- 1.0
- 1.0
-
-julia> A
-2×2 Array{Float64,2}:
- 1.41421   0.0
- 0.0      -1.41421
-
-julia> B
-2×2 Array{Float64,2}:
- 1.0  -0.0
- 0.0  -1.0
 ```
 """
 function svdvals!(A::StridedMatrix{T}, B::StridedMatrix{T}) where T<:BlasFloat

From 0835ee0ea6c48fb83c263c9e59cde7bcf2df4bd6 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Tue, 7 Jan 2020 13:44:58 -0500
Subject: [PATCH 06/31] add `local` to testset vars that should be local
 (#34282)

(cherry picked from commit 194a38bbe22168556d4d0bd816a947abeb5c2f0e)
---
 stdlib/Test/src/Test.jl | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/stdlib/Test/src/Test.jl b/stdlib/Test/src/Test.jl
index 9d556b9186c7e..732aa4347fe31 100644
--- a/stdlib/Test/src/Test.jl
+++ b/stdlib/Test/src/Test.jl
@@ -1100,7 +1100,7 @@ function testset_beginend(args, tests, source)
     # action (such as reporting the results)
     ex = quote
         _check_testset($testsettype, $(QuoteNode(testsettype.args[1])))
-        ts = $(testsettype)($desc; $options...)
+        local ts = $(testsettype)($desc; $options...)
         # this empty loop is here to force the block to be compiled,
         # which is needed for backtrace scrubbing to work correctly.
         while false; end
@@ -1109,7 +1109,7 @@ function testset_beginend(args, tests, source)
         # cannot be used as it changes slightly the semantic of @testset,
         # by wrapping the body in a function
         local RNG = default_rng()
-        oldrng = copy(RNG)
+        local oldrng = copy(RNG)
         try
             # RNG is re-seeded with its own seed to ease reproduce a failed test
             Random.seed!(RNG.seed)
@@ -1195,7 +1195,7 @@ function testset_forloop(args, testloop, source)
         end
     end
     quote
-        arr = Vector{Any}()
+        local arr = Vector{Any}()
         local first_iteration = true
         local ts
         local RNG = default_rng()

From f03279d582b541ca8e72ddfb96c27a52e90e23fd Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Tue, 7 Jan 2020 13:48:22 -0500
Subject: [PATCH 07/31] fix #34286, regression in `methods` with empty tuple of
 types (#34291)

(cherry picked from commit 8dc0d9332d1cbe204ae3ea53457988f3ea2029ee)
---
 base/reflection.jl |  8 ++++----
 test/reflection.jl | 10 ++++++----
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/base/reflection.jl b/base/reflection.jl
index ccb00baa2e667..df3368022fc09 100644
--- a/base/reflection.jl
+++ b/base/reflection.jl
@@ -868,14 +868,14 @@ end
 Return the method table for `f`.
 
 If `types` is specified, return an array of methods whose types match.
-If `module` is specified, return an array of methods defined in this module.
-A list of modules can also be specified as an array or tuple.
+If `module` is specified, return an array of methods defined in that module.
+A list of modules can also be specified as an array.
 
 !!! compat "Julia 1.4"
     At least Julia 1.4 is required for specifying a module.
 """
 function methods(@nospecialize(f), @nospecialize(t),
-                 @nospecialize(mod::Union{Module,AbstractArray{Module},Tuple{Vararg{Module}},Nothing}=nothing))
+                 @nospecialize(mod::Union{Module,AbstractArray{Module},Nothing}=nothing))
     if mod isa Module
         mod = (mod,)
     end
@@ -900,7 +900,7 @@ function methods_including_ambiguous(@nospecialize(f), @nospecialize(t))
 end
 
 function methods(@nospecialize(f),
-                 @nospecialize(mod::Union{Module,AbstractArray{Module},Tuple{Vararg{Module}},Nothing}=nothing))
+                 @nospecialize(mod::Union{Module,AbstractArray{Module},Nothing}=nothing))
     # return all matches
     return methods(f, Tuple{Vararg{Any}}, mod)
 end
diff --git a/test/reflection.jl b/test/reflection.jl
index 09592bbada17a..f567eb40d55f5 100644
--- a/test/reflection.jl
+++ b/test/reflection.jl
@@ -897,6 +897,7 @@ end
 module TestMod33403
 f(x) = 1
 f(x::Int) = 2
+g() = 3
 
 module Sub
 import ..TestMod33403: f
@@ -905,18 +906,19 @@ end
 end
 
 @testset "methods with module" begin
-    using .TestMod33403: f
+    using .TestMod33403: f, g
     @test length(methods(f)) == 3
     @test length(methods(f, (Int,))) == 1
 
     @test length(methods(f, TestMod33403)) == 2
-    @test length(methods(f, (TestMod33403,))) == 2
     @test length(methods(f, [TestMod33403])) == 2
     @test length(methods(f, (Int,), TestMod33403)) == 1
-    @test length(methods(f, (Int,), (TestMod33403,))) == 1
+    @test length(methods(f, (Int,), [TestMod33403])) == 1
 
     @test length(methods(f, TestMod33403.Sub)) == 1
-    @test length(methods(f, (TestMod33403.Sub,))) == 1
+    @test length(methods(f, [TestMod33403.Sub])) == 1
     @test length(methods(f, (Char,), TestMod33403.Sub)) == 1
     @test length(methods(f, (Int,), TestMod33403.Sub)) == 0
+
+    @test length(methods(g, ())) == 1
 end

From bd2ac09a06de182fde307d9e2a8e80b7257380c9 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Tue, 7 Jan 2020 15:49:43 -0500
Subject: [PATCH 08/31] make fallback `signed` and `unsigned` functions
 unchecked (as documented) (#34287)

(cherry picked from commit 37275c3f136b3a1b3bd6215432f021a22371d536)
---
 base/int.jl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/base/int.jl b/base/int.jl
index 5e1bf99b74e37..6c19258d2f58b 100644
--- a/base/int.jl
+++ b/base/int.jl
@@ -155,7 +155,7 @@ julia> signed(unsigned(-2))
 -2
 ```
 """
-unsigned(x) = convert(Unsigned, x)
+unsigned(x) = x % typeof(convert(Unsigned, zero(x)))
 unsigned(x::BitSigned) = reinterpret(typeof(convert(Unsigned, zero(x))), x)
 
 """
@@ -164,7 +164,7 @@ unsigned(x::BitSigned) = reinterpret(typeof(convert(Unsigned, zero(x))), x)
 Convert a number to a signed integer. If the argument is unsigned, it is reinterpreted as
 signed without checking for overflow.
 """
-signed(x) = convert(Signed, x)
+signed(x) = x % typeof(convert(Signed, zero(x)))
 signed(x::BitUnsigned) = reinterpret(typeof(convert(Signed, zero(x))), x)
 
 div(x::BitSigned, y::Unsigned) = flipsign(signed(div(unsigned(abs(x)), y)), x)

From 3797ea931512ee19491b6d6292429acf1844ec3b Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Tue, 7 Jan 2020 15:50:31 -0500
Subject: [PATCH 09/31] add some compatibility shims for internal functions
 changed in 1.4 (#34289)

(cherry picked from commit c33298df0b58a2a3d6a5a2e5afce6093061888c9)
---
 base/methodshow.jl | 3 ++-
 base/util.jl       | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/base/methodshow.jl b/base/methodshow.jl
index df2de34f3740d..6f9c46f929100 100644
--- a/base/methodshow.jl
+++ b/base/methodshow.jl
@@ -73,7 +73,8 @@ end
 
 const empty_sym = Symbol("")
 
-function kwarg_decl(m::Method)
+# NOTE: second argument is deprecated and is no longer used
+function kwarg_decl(m::Method, kwtype = nothing)
     mt = get_methodtable(m)
     if isdefined(mt, :kwsorter)
         kwtype = typeof(mt.kwsorter)
diff --git a/base/util.jl b/base/util.jl
index 9c4efa3bdaf36..0038dbcafae9c 100644
--- a/base/util.jl
+++ b/base/util.jl
@@ -238,6 +238,12 @@ end
 
 # total number of bytes allocated so far
 gc_bytes(b::Ref{Int64}) = ccall(:jl_gc_get_total_bytes, Cvoid, (Ptr{Int64},), b)
+# NOTE: gc_bytes() is deprecated
+function gc_bytes()
+    b = Ref{Int64}()
+    gc_bytes(b)
+    b[]
+end
 
 """
     @allocated

From 8eee8d527b5e41fa9d3ccad2f82ad94b82ba5305 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Tue, 7 Jan 2020 15:52:35 -0500
Subject: [PATCH 10/31] restrict `div` fallback to `Real` (#34284)

add more-compatible fallback for `divrem`

(cherry picked from commit 8f53987306e34d63da94dfaa66201aa009178e75)
---
 base/div.jl | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/base/div.jl b/base/div.jl
index 5d91ba5ec19bb..ef85e2fe18b99 100644
--- a/base/div.jl
+++ b/base/div.jl
@@ -116,7 +116,17 @@ julia> divrem(7,3)
 ```
 """
 divrem(x, y) = divrem(x, y, RoundToZero)
-divrem(a, b, r::RoundingMode) = (div(a, b, r), rem(a, b, r))
+function divrem(a, b, r::RoundingMode)
+    if r == RoundToZero
+        # For compat. Remove in 2.0.
+        (div(a, b), rem(a, b))
+    elseif r === RoundDown
+        # For compat. Remove in 2.0.
+        (fld(a, b), mod(a, b))
+    else
+        (div(a, b, r), rem(a, b, r))
+    end
+end
 function divrem(x::Integer, y::Integer, rnd::typeof(RoundNearest))
     (q, r) = divrem(x, y)
     if x >= 0

From c9dba72d29d925a59451c8ff4fe9f64908f8b257 Mon Sep 17 00:00:00 2001
From: Tim Besard <tim.besard@gmail.com>
Date: Wed, 8 Jan 2020 06:46:48 +0100
Subject: [PATCH 11/31] Simplify the GC.gc interface. (#34303)

(cherry picked from commit b0ed147c5cf0566019ff08755af71eb5649411bc)
---
 base/gcutils.jl | 25 ++++++++-----------------
 test/misc.jl    |  1 -
 2 files changed, 8 insertions(+), 18 deletions(-)

diff --git a/base/gcutils.jl b/base/gcutils.jl
index 4ff580444c6db..95de3137deda7 100644
--- a/base/gcutils.jl
+++ b/base/gcutils.jl
@@ -49,29 +49,20 @@ Module with garbage collection utilities.
 """
 module GC
 
-# @enum-like structure
-struct CollectionType
-    x::Int
-end
-Base.cconvert(::Type{Cint}, collection::CollectionType) = Cint(collection.x)
-
-const Auto          = CollectionType(0)
-const Full          = CollectionType(1)
-const Incremental   = CollectionType(2)
-
 """
-    GC.gc(full::Bool=true)
-    GC.gc(collection::CollectionType)
+    GC.gc()
+    GC.gc(full::Bool)
 
-Perform garbage collection. The argument `full` determines whether a full, but more costly
-collection is performed. Otherwise, heuristics are used to determine which type of
-collection is needed. For exact control, pass an argument of type `CollectionType`.
+Perform garbage collection. The argument `full` determines the kind of collection: A full
+collection scans all objects, while an incremental collection only scans so-called young
+objects and is much quicker. If called without an argument, heuristics are used to determine
+which type of collection is needed.
 
 !!! warning
     Excessive use will likely lead to poor performance.
 """
-gc(full::Bool=true) = ccall(:jl_gc_collect, Cvoid, (Cint,), full)
-gc(collection::CollectionType) = ccall(:jl_gc_collect, Cvoid, (Cint,), collection)
+gc() = ccall(:jl_gc_collect, Cvoid, (Cint,), 0)
+gc(full::Bool) = ccall(:jl_gc_collect, Cvoid, (Cint,), full ? 1 : 2)
 
 """
     GC.enable(on::Bool)
diff --git a/test/misc.jl b/test/misc.jl
index e92f8e8b7b1bd..3c33ac4788628 100644
--- a/test/misc.jl
+++ b/test/misc.jl
@@ -792,7 +792,6 @@ end
 @testset "GC utilities" begin
     GC.gc()
     GC.gc(true); GC.gc(false)
-    GC.gc(GC.Auto); GC.gc(GC.Full); GC.gc(GC.Incremental)
 
     GC.safepoint()
 end

From ca6895ffc58a80e42e76dc937ab5b65a5d820d56 Mon Sep 17 00:00:00 2001
From: Fredrik Ekre <ekrefredrik@gmail.com>
Date: Tue, 7 Jan 2020 14:43:17 +0100
Subject: [PATCH 12/31] Fix trailing whitespace in svd docs introduced in
 cec4c3210986ba045f0d8ecf6396647337361d8e.

(cherry picked from commit a3eb2749b48aa1b650a103ad06e07074c0608ce2)
---
 stdlib/LinearAlgebra/src/svd.jl | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/stdlib/LinearAlgebra/src/svd.jl b/stdlib/LinearAlgebra/src/svd.jl
index ccf025be062e4..2a49512eeb2ec 100644
--- a/stdlib/LinearAlgebra/src/svd.jl
+++ b/stdlib/LinearAlgebra/src/svd.jl
@@ -390,14 +390,14 @@ object `F` such that `[A;B] = [F.U * F.D1; F.V * F.D2] * F.R0 * F.Q'`
 
 Iterating the decomposition produces the components `U`, `V`, `Q`, `D1`, `D2`, and `R0`.
 
-The generalized SVD is used in applications such as when one wants to compare how much belongs 
-to `A` vs. how much belongs to `B`, as in human vs yeast genome, or signal vs noise, or between 
+The generalized SVD is used in applications such as when one wants to compare how much belongs
+to `A` vs. how much belongs to `B`, as in human vs yeast genome, or signal vs noise, or between
 clusters vs within clusters. (See Edelman and Wang for discussion: https://arxiv.org/abs/1901.00485)
 
-It decomposes `[A; B]` into `[UC; VS]H`, where `[UC; VS]` is a natural orthogonal basis for the 
-column space of `[A; B]`, and `H = RQ'` is a natural non-orthogonal basis for the rowspace of `[A;B]`, 
-where the top rows are most closely attributed to the `A` matrix, and the bottom to the `B` matrix. 
-The multi-cosine/sine matrices `C` and `S` provide a multi-measure of how much `A` vs how much `B`, 
+It decomposes `[A; B]` into `[UC; VS]H`, where `[UC; VS]` is a natural orthogonal basis for the
+column space of `[A; B]`, and `H = RQ'` is a natural non-orthogonal basis for the rowspace of `[A;B]`,
+where the top rows are most closely attributed to the `A` matrix, and the bottom to the `B` matrix.
+The multi-cosine/sine matrices `C` and `S` provide a multi-measure of how much `A` vs how much `B`,
 and `U` and `V` provide directions in which these are measured.
 
 # Examples

From f23680bd98f503a0901ffd3e0011219b483bbc36 Mon Sep 17 00:00:00 2001
From: Michael Jin <mikhail.jin@gmail.com>
Date: Wed, 8 Jan 2020 22:35:53 -0500
Subject: [PATCH 13/31] Update Mozilla CA certificate store to latest
 (01-01-2020) for libgit2 SSL. (#34319)

(cherry picked from commit 375347ea52b27ffc21b5e452b4d094074a15d86e)
---
 deps/Versions.make                          | 2 +-
 deps/checksums/cacert-2019-08-28.pem/md5    | 1 -
 deps/checksums/cacert-2019-08-28.pem/sha512 | 1 -
 deps/checksums/cacert-2019-10-16.pem/md5    | 1 -
 deps/checksums/cacert-2019-10-16.pem/sha512 | 1 -
 deps/checksums/cacert-2020-01-01.pem/md5    | 1 +
 deps/checksums/cacert-2020-01-01.pem/sha512 | 1 +
 7 files changed, 3 insertions(+), 5 deletions(-)
 delete mode 100644 deps/checksums/cacert-2019-08-28.pem/md5
 delete mode 100644 deps/checksums/cacert-2019-08-28.pem/sha512
 delete mode 100644 deps/checksums/cacert-2019-10-16.pem/md5
 delete mode 100644 deps/checksums/cacert-2019-10-16.pem/sha512
 create mode 100644 deps/checksums/cacert-2020-01-01.pem/md5
 create mode 100644 deps/checksums/cacert-2020-01-01.pem/sha512

diff --git a/deps/Versions.make b/deps/Versions.make
index 5faafc910f080..666a5aa714d23 100644
--- a/deps/Versions.make
+++ b/deps/Versions.make
@@ -40,4 +40,4 @@ P7ZIP_BB_REL = 1
 # Specify the version of the Mozilla CA Certificate Store to obtain.
 # The versions of cacert.pem are identified by the date (YYYY-MM-DD) of their changes.
 # See https://curl.haxx.se/docs/caextract.html for more details.
-MOZILLA_CACERT_VERSION := 2019-10-16
+MOZILLA_CACERT_VERSION := 2020-01-01
diff --git a/deps/checksums/cacert-2019-08-28.pem/md5 b/deps/checksums/cacert-2019-08-28.pem/md5
deleted file mode 100644
index c2b816d1ecd7f..0000000000000
--- a/deps/checksums/cacert-2019-08-28.pem/md5
+++ /dev/null
@@ -1 +0,0 @@
-6c8779e5755d9dddf677bf7a52d035ce
diff --git a/deps/checksums/cacert-2019-08-28.pem/sha512 b/deps/checksums/cacert-2019-08-28.pem/sha512
deleted file mode 100644
index 97b5e2963b7b4..0000000000000
--- a/deps/checksums/cacert-2019-08-28.pem/sha512
+++ /dev/null
@@ -1 +0,0 @@
-527e23d1e83381583cc2efe4625b01a00baa990afc877bb617727e8bffab17a0dc4f36b60162bad375b576ff09bc27acc7e0f095a34150f23d61825b8a7fb81f
diff --git a/deps/checksums/cacert-2019-10-16.pem/md5 b/deps/checksums/cacert-2019-10-16.pem/md5
deleted file mode 100644
index 5286d34293fa5..0000000000000
--- a/deps/checksums/cacert-2019-10-16.pem/md5
+++ /dev/null
@@ -1 +0,0 @@
-5805059ab9e4646e4803ce1e007eb8ba
diff --git a/deps/checksums/cacert-2019-10-16.pem/sha512 b/deps/checksums/cacert-2019-10-16.pem/sha512
deleted file mode 100644
index e017d0fe86c31..0000000000000
--- a/deps/checksums/cacert-2019-10-16.pem/sha512
+++ /dev/null
@@ -1 +0,0 @@
-49778472e46ce3b86b3930f4df5731ac86daf4d8602d418af1c89dc35df5f98c4557aa6c6eb280558c61139ead4b96cbb457a259f72640452f28a2fecd4ccb89
diff --git a/deps/checksums/cacert-2020-01-01.pem/md5 b/deps/checksums/cacert-2020-01-01.pem/md5
new file mode 100644
index 0000000000000..f6200b5dcff11
--- /dev/null
+++ b/deps/checksums/cacert-2020-01-01.pem/md5
@@ -0,0 +1 @@
+c726ae88fd600aa26df1d30f42b51fec
diff --git a/deps/checksums/cacert-2020-01-01.pem/sha512 b/deps/checksums/cacert-2020-01-01.pem/sha512
new file mode 100644
index 0000000000000..b5adf88cd0f1d
--- /dev/null
+++ b/deps/checksums/cacert-2020-01-01.pem/sha512
@@ -0,0 +1 @@
+cc129ae1a4377a43a74b0854b6eccb2b315cdfce018142d1dd5524fb64c8945cde067cb18f366351fa7d6af3f9f36cf21bc1f626f987f9e4627878472ea59cde

From 3597a11306b4b6c395fa824996bf2a2c767ebaba Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Thu, 9 Jan 2020 04:20:17 -0500
Subject: [PATCH 14/31] restore `pathsep()` and old sig of `print_matrix_vdots`
 for backwards compat (#34314)

(cherry picked from commit e3b9d5df3b5e971de3608305e3aa0f8c23f6c5ee)
---
 base/arrayshow.jl | 2 +-
 base/path.jl      | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/base/arrayshow.jl b/base/arrayshow.jl
index 9c7ecf564b44d..d3215a99f32c0 100644
--- a/base/arrayshow.jl
+++ b/base/arrayshow.jl
@@ -122,7 +122,7 @@ but it also repeated every M elements if desired.
 """
 function print_matrix_vdots(io::IO, vdots::AbstractString,
                             A::Vector, sep::AbstractString, M::Integer, m::Integer,
-                            pad_right::Bool)
+                            pad_right::Bool = true)
     for k = 1:length(A)
         w = A[k][1] + A[k][2]
         if k % M == m
diff --git a/base/path.jl b/base/path.jl
index ae681dc8c43fe..ebad466848f15 100644
--- a/base/path.jl
+++ b/base/path.jl
@@ -198,6 +198,9 @@ function splitext(path::String)
     a*m.captures[1], String(m.captures[2])
 end
 
+# NOTE: deprecated in 1.4
+pathsep() = path_separator
+
 """
     splitpath(path::AbstractString) -> Vector{String}
 

From c1c544e7f82e579cbcbc554b6d24052c2c7af972 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Thu, 9 Jan 2020 04:21:31 -0500
Subject: [PATCH 15/31] handle `GlobalRef` in getfield elim pass (#34322)

(cherry picked from commit 22817ea28366b17a982c00d405edebe8c9571d5c)
---
 base/compiler/ssair/passes.jl | 7 +++++++
 test/compiler/irpasses.jl     | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/base/compiler/ssair/passes.jl b/base/compiler/ssair/passes.jl
index f30860c0324ea..c61527053fe51 100644
--- a/base/compiler/ssair/passes.jl
+++ b/base/compiler/ssair/passes.jl
@@ -370,6 +370,13 @@ function lift_leaves(compact::IncrementalCompact, @nospecialize(stmt),
             end
         elseif isa(leaf, QuoteNode)
             leaf = leaf.value
+        elseif isa(leaf, GlobalRef)
+            mod, name = leaf.mod, leaf.name
+            if isdefined(mod, name) && isconst(mod, name)
+                leaf = getfield(mod, name)
+            else
+                return nothing
+            end
         elseif isa(leaf, Union{Argument, Expr})
             return nothing
         end
diff --git a/test/compiler/irpasses.jl b/test/compiler/irpasses.jl
index 46cc4571b5616..042d91d2ff700 100644
--- a/test/compiler/irpasses.jl
+++ b/test/compiler/irpasses.jl
@@ -290,3 +290,8 @@ end
 let K = rand(2,2)
     @test test_29253(K) == 2
 end
+
+# check getfield elim handling of GlobalRef
+const _some_coeffs = (1,[2],3,4)
+splat_from_globalref(x) = (x, _some_coeffs...,)
+@test splat_from_globalref(0) == (0, 1, [2], 3, 4)

From df7473f4efb6b091e81554254237db10c15834a0 Mon Sep 17 00:00:00 2001
From: Kristoffer Carlsson <kcarlsson89@gmail.com>
Date: Thu, 9 Jan 2020 10:30:43 +0100
Subject: [PATCH 16/31] bump Pkg to release-1.4

---
 deps/checksums/Pkg-.tar.gz/md5                                  | 1 +
 deps/checksums/Pkg-.tar.gz/sha512                               | 1 +
 .../Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/md5     | 1 -
 .../Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/sha512  | 1 -
 .../Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/md5     | 1 +
 .../Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/sha512  | 1 +
 stdlib/Pkg.version                                              | 2 +-
 7 files changed, 5 insertions(+), 3 deletions(-)
 create mode 100644 deps/checksums/Pkg-.tar.gz/md5
 create mode 100644 deps/checksums/Pkg-.tar.gz/sha512
 delete mode 100644 deps/checksums/Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/md5
 delete mode 100644 deps/checksums/Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/sha512
 create mode 100644 deps/checksums/Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/md5
 create mode 100644 deps/checksums/Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/sha512

diff --git a/deps/checksums/Pkg-.tar.gz/md5 b/deps/checksums/Pkg-.tar.gz/md5
new file mode 100644
index 0000000000000..1ac40b2e07d64
--- /dev/null
+++ b/deps/checksums/Pkg-.tar.gz/md5
@@ -0,0 +1 @@
+5ba4a445f0d53782527721c7d281f83b
diff --git a/deps/checksums/Pkg-.tar.gz/sha512 b/deps/checksums/Pkg-.tar.gz/sha512
new file mode 100644
index 0000000000000..6bd50c03c6db5
--- /dev/null
+++ b/deps/checksums/Pkg-.tar.gz/sha512
@@ -0,0 +1 @@
+36809df8a94a0876eabd04f0fcd93a40dbafde921fb6644b461241a651231ae115e81ddfce99fba586d09afc5f692582bb24d40fa7bed1902a5bb7b4cc3a8418
diff --git a/deps/checksums/Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/md5 b/deps/checksums/Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/md5
deleted file mode 100644
index 71505fa6400ea..0000000000000
--- a/deps/checksums/Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/md5
+++ /dev/null
@@ -1 +0,0 @@
-5a849b56864413cbda4385d078ce8ac8
diff --git a/deps/checksums/Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/sha512 b/deps/checksums/Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/sha512
deleted file mode 100644
index bb3c3e630832a..0000000000000
--- a/deps/checksums/Pkg-6c29d6c5421b4e3d872ccf42bd775b627b300069.tar.gz/sha512
+++ /dev/null
@@ -1 +0,0 @@
-8ca3fe25f462098f059984220d0828994d7cc8fdb8ae73894d321482948bbf6f75aacefa67d58ca406229f6e89814cbdef3d2cf53b89bb3b3270cdb6e221c7fe
diff --git a/deps/checksums/Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/md5 b/deps/checksums/Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/md5
new file mode 100644
index 0000000000000..bfad529f9b9e1
--- /dev/null
+++ b/deps/checksums/Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/md5
@@ -0,0 +1 @@
+7d40c950e852131184c0af6376d14f3d
diff --git a/deps/checksums/Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/sha512 b/deps/checksums/Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/sha512
new file mode 100644
index 0000000000000..51db8e03fad6c
--- /dev/null
+++ b/deps/checksums/Pkg-a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1.tar.gz/sha512
@@ -0,0 +1 @@
+71a811bcae23fb8999ea4eeb5d878f9bc769c9cc4e940c987d89ee82bb706d7ff4abd5151a9e0053367137488e682e4c8b4bb382fa981895d47ba44f120f5c73
diff --git a/stdlib/Pkg.version b/stdlib/Pkg.version
index a2c52b06b79f0..6222673205a73 100644
--- a/stdlib/Pkg.version
+++ b/stdlib/Pkg.version
@@ -1,2 +1,2 @@
 PKG_BRANCH = master
-PKG_SHA1 = 6c29d6c5421b4e3d872ccf42bd775b627b300069 
+PKG_SHA1 = a1eea5d5bd6493eb233b8e7abcdae6fc7e5751e1

From a0d8713c7efb74046dcb1a4baa80554ed45cd00a Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Mon, 13 Jan 2020 07:50:36 -0500
Subject: [PATCH 17/31] add `hypot` fallback for 2 Numbers of the same type
 (#34316)

(cherry picked from commit ade471359849cb2767eed69921892ab4280c3b81)
---
 base/math.jl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/base/math.jl b/base/math.jl
index 20cb374c5c33b..c3429723db932 100644
--- a/base/math.jl
+++ b/base/math.jl
@@ -613,6 +613,7 @@ julia> hypot(3, 4im)
 hypot(x::Number, y::Number) = hypot(promote(x, y)...)
 hypot(x::Complex, y::Complex) = hypot(abs(x), abs(y))
 hypot(x::T, y::T) where {T<:Real} = hypot(float(x), float(y))
+hypot(x::T, y::T) where {T<:Number} = (z = y/x; abs(x) * sqrt(one(z) + z*z))
 function hypot(x::T, y::T) where T<:AbstractFloat
     #Return Inf if either or both imputs is Inf (Compliance with IEEE754)
     if isinf(x) || isinf(y)

From 671f7aadcd38b0af5f5de8ce86e9b7e9c8f390c3 Mon Sep 17 00:00:00 2001
From: "Viral B. Shah" <viral@mayin.org>
Date: Thu, 9 Jan 2020 19:02:59 -0500
Subject: [PATCH 18/31] Update sprandn in docs. Fix #31283 (#34257)

(cherry picked from commit 717d54894cb3a921c66509b86227db088e3bde33)
---
 stdlib/SparseArrays/docs/src/index.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stdlib/SparseArrays/docs/src/index.md b/stdlib/SparseArrays/docs/src/index.md
index 72347663eb034..17fb2b2dc368b 100644
--- a/stdlib/SparseArrays/docs/src/index.md
+++ b/stdlib/SparseArrays/docs/src/index.md
@@ -199,7 +199,7 @@ section of the standard library reference.
 | [`Array(S)`](@ref)         | [`sparse(A)`](@ref)    | Interconverts between dense and sparse formats.                                                                                                                       |
 | [`sprand(m,n,d)`](@ref)    | [`rand(m,n)`](@ref)    | Creates a *m*-by-*n* random matrix (of density *d*) with iid non-zero elements distributed uniformly on the half-open interval ``[0, 1)``.                            |
 | [`sprandn(m,n,d)`](@ref)   | [`randn(m,n)`](@ref)   | Creates a *m*-by-*n* random matrix (of density *d*) with iid non-zero elements distributed according to the standard normal (Gaussian) distribution.                  |
-| [`sprandn(m,n,d,X)`](@ref) | [`randn(m,n,X)`](@ref) | Creates a *m*-by-*n* random matrix (of density *d*) with iid non-zero elements distributed according to the *X* distribution. (Requires the `Distributions` package.) |
+| [`sprandn(rng,m,n,d)`](@ref) | [`randn(rng,m,n)`](@ref) | Creates a *m*-by-*n* random matrix (of density *d*) with iid non-zero elements generated with the `rng` random number generator                                   |
 
 # [Sparse Arrays](@id stdlib-sparse-arrays)
 

From 9fbf6b39e7023d18991f761fd1f380b41c42f703 Mon Sep 17 00:00:00 2001
From: Tim Besard <tim.besard@gmail.com>
Date: Mon, 13 Jan 2020 17:00:19 +0100
Subject: [PATCH 19/31] Use approximate comparison in LinearAlgebra diagonal
 tests.

(cherry picked from commit 78d135257fa49fc2e0f160a70b7fe6fd476200aa)
---
 stdlib/LinearAlgebra/test/diagonal.jl | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/stdlib/LinearAlgebra/test/diagonal.jl b/stdlib/LinearAlgebra/test/diagonal.jl
index 80415d6bcd397..a0af45e8b923f 100644
--- a/stdlib/LinearAlgebra/test/diagonal.jl
+++ b/stdlib/LinearAlgebra/test/diagonal.jl
@@ -471,32 +471,32 @@ end
 
                 # Triangular * Diagonal
                 R = T * D
-                @test R == Array(T) * Array(D)
+                @test R ≈ Array(T) * Array(D)
                 @test isa(R, rtype)
 
                 # Diagonal * Triangular
                 R = D * T
-                @test R == Array(D) * Array(T)
+                @test R ≈ Array(D) * Array(T)
                 @test isa(R, rtype)
 
                 # Adjoint of Triangular * Diagonal
                 R = T' * D
-                @test R == Array(T)' * Array(D)
+                @test R ≈ Array(T)' * Array(D)
                 @test isa(R, adjtype)
 
                 # Diagonal * Adjoint of Triangular
                 R = D * T'
-                @test R == Array(D) * Array(T)'
+                @test R ≈ Array(D) * Array(T)'
                 @test isa(R, adjtype)
 
                 # Transpose of Triangular * Diagonal
                 R = transpose(T) * D
-                @test R == transpose(Array(T)) * Array(D)
+                @test R ≈ transpose(Array(T)) * Array(D)
                 @test isa(R, adjtype)
 
                 # Diagonal * Transpose of Triangular
                 R = D * transpose(T)
-                @test R == Array(D) * transpose(Array(T))
+                @test R ≈ Array(D) * transpose(Array(T))
                 @test isa(R, adjtype)
             end
         end

From 8860214859f9a5f0b03d9b67c071cd0a73491839 Mon Sep 17 00:00:00 2001
From: Tim Besard <tim.besard@gmail.com>
Date: Thu, 9 Jan 2020 16:27:16 +0100
Subject: [PATCH 20/31] Generate an error for closure cfunctions on unsupported
 platforms.

(cherry picked from commit f53e144c76530fc164f8faebcc1dff16b7f05590)
---
 base/c.jl                                    |  2 +-
 doc/src/manual/calling-c-and-fortran-code.md |  4 ++++
 src/codegen.cpp                              |  6 ++++++
 src/support/platform.h                       |  1 +
 test/ccall.jl                                | 11 +++++++++++
 test/testenv.jl                              |  4 ++++
 test/threads_exec.jl                         | 13 +++++++++----
 7 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/base/c.jl b/base/c.jl
index 3654ca8b111e4..bb5da1c508922 100644
--- a/base/c.jl
+++ b/base/c.jl
@@ -47,7 +47,7 @@ Note that the argument type tuple must be a literal tuple, and not a tuple-value
 (although it can include a splat expression). And that these arguments will be evaluated in global scope
 during compile-time (not deferred until runtime).
 Adding a '\\\$' in front of the function argument changes this to instead create a runtime closure
-over the local variable `callable`.
+over the local variable `callable` (this is not supported on all architectures).
 
 See [manual section on ccall and cfunction usage](@ref Calling-C-and-Fortran-Code).
 
diff --git a/doc/src/manual/calling-c-and-fortran-code.md b/doc/src/manual/calling-c-and-fortran-code.md
index 2fb7e6aca9d87..b56a1d8f08ff9 100644
--- a/doc/src/manual/calling-c-and-fortran-code.md
+++ b/doc/src/manual/calling-c-and-fortran-code.md
@@ -945,6 +945,10 @@ function qsort(a::Vector{T}, cmp) where T
 end
 ```
 
+!!! note
+    Closure [`@cfunction`](@ref) rely on LLVM trampolines, which are not available on all
+    platforms (for example ARM and PowerPC).
+
 
 ## Closing a Library
 
diff --git a/src/codegen.cpp b/src/codegen.cpp
index a7ee60d934e8c..dad73e3f08030 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -5075,6 +5075,12 @@ static jl_cgval_t emit_cfunction(jl_codectx_t &ctx, jl_value_t *output_type, con
     }
 
     bool nest = (!fexpr_rt.constant || unionall_env);
+#if defined(_CPU_AARCH64_) || defined(_CPU_ARM_) || defined(_CPU_PPC64_)
+    if (nest) {
+        emit_error(ctx, "cfunction: closures are not supported on this platform");
+        return jl_cgval_t();
+    }
+#endif
     Value *F = gen_cfun_wrapper(
             jl_Module,
             sig, fexpr_rt.constant,
diff --git a/src/support/platform.h b/src/support/platform.h
index 9cfb3c7a9e60b..2c5ca94017f98 100644
--- a/src/support/platform.h
+++ b/src/support/platform.h
@@ -27,6 +27,7 @@
  *      CPU/Architecture:
  *          _CPU_X86_
  *          _CPU_X86_64_
+ *          _CPU_AARCH64_
  *          _CPU_ARM_
  *          _CPU_WASM_
  */
diff --git a/test/ccall.jl b/test/ccall.jl
index 08335390de221..339896172aea4 100644
--- a/test/ccall.jl
+++ b/test/ccall.jl
@@ -6,6 +6,9 @@ using InteractiveUtils: code_llvm
 
 import Libdl
 
+# for cfunction_closure
+include("testenv.jl")
+
 const libccalltest = "libccalltest"
 
 const verbose = false
@@ -791,6 +794,8 @@ end
 ## cfunction roundtrip
 
 verbose && Libc.flush_cstdio()
+
+if cfunction_closure
 verbose && println("Testing cfunction closures: ")
 
 # helper Type for testing that constructors work
@@ -974,6 +979,12 @@ for (t, v) in ((Complex{Int32}, :ci32), (Complex{Int64}, :ci64),
     end
 end
 
+else
+
+@test_broken "cfunction: no support for closures on this platform"
+
+end
+
 # issue 13031
 foo13031(x) = Cint(1)
 foo13031p = @cfunction(foo13031, Cint, (Ref{Tuple{}},))
diff --git a/test/testenv.jl b/test/testenv.jl
index 9094ab66f197e..e07355301b55a 100644
--- a/test/testenv.jl
+++ b/test/testenv.jl
@@ -32,4 +32,8 @@ if !@isdefined(testenv_defined)
     const curmod_name = fullname(curmod)
     const curmod_str = curmod === Main ? "Main" : join(curmod_name, ".")
     const curmod_prefix = "$(["$m." for m in curmod_name]...)"
+
+    # platforms that support cfunction with closures
+    # (requires LLVM back-end support for trampoline intrinsics)
+    const cfunction_closure = Sys.ARCH === :x86_64 || Sys.ARCH === :i686
 end
diff --git a/test/threads_exec.jl b/test/threads_exec.jl
index e1b4f09bd7d41..848150a8e8b84 100644
--- a/test/threads_exec.jl
+++ b/test/threads_exec.jl
@@ -4,6 +4,9 @@ using Test
 using Base.Threads
 using Base.Threads: SpinLock
 
+# for cfunction_closure
+include("testenv.jl")
+
 # threading constructs
 
 let a = zeros(Int, 2 * nthreads())
@@ -460,10 +463,12 @@ function test_thread_cfunction()
     end
     @test sum(ok) == 10000
 end
-if nthreads() == 1
-    test_thread_cfunction()
-else
-    @test_broken "cfunction trampoline code not thread-safe"
+if cfunction_closure
+    if nthreads() == 1
+        test_thread_cfunction()
+    else
+        @test_broken "cfunction trampoline code not thread-safe"
+    end
 end
 
 # Compare the two ways of checking if threading is enabled.

From e3f9911d0ba512cedc33b50509e57cb33d52fe33 Mon Sep 17 00:00:00 2001
From: Takafumi Arakaki <aka.tkf@gmail.com>
Date: Tue, 14 Jan 2020 11:47:28 -0800
Subject: [PATCH 21/31] Fix initial value handling with flatten transducer
 (#34369)

There was a bug in initial value handling of `FlatteningRF` and the
following example failed:

    @test mapfoldl(
        x -> (x, x),
        ((a, b), (c, d)) -> (min(a, c), max(b, d)),
        Iterators.flatten((1:2, 3:4)),
    ) == (1, 4)

This is because `BottomRF(op.rf)` was called inside `FlatteningRF`
where `op.rf` is already a "non-bottom" reducing function; here it's a
`MappingRF`.  As `BottomRF(rf)` forwards anything on the second
argument on the first invocation as the first argument (accumulator)
of the next calls, we need to make sure that this value is processed
through `MappingRF` in the above example.  However, if we do
`BottomRF(op.rf)` where `op.rf` is a `MappingRF`, this `BottomRF`
bypasses any processing that has to happen in `op.rf`.

(cherry picked from commit 0ee3264be377a70e56465142649e67b4f85dda12)
---
 base/reduce.jl | 2 +-
 test/reduce.jl | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/base/reduce.jl b/base/reduce.jl
index 2c97effdf9550..c89e7b8763547 100644
--- a/base/reduce.jl
+++ b/base/reduce.jl
@@ -112,7 +112,7 @@ struct FlatteningRF{T}
 end
 
 @inline function (op::FlatteningRF)(acc, x)
-    op′, itr′ = _xfadjoint(BottomRF(op.rf), x)
+    op′, itr′ = _xfadjoint(op.rf, x)
     return _foldl_impl(op′, acc, itr′)
 end
 
diff --git a/test/reduce.jl b/test/reduce.jl
index e57e964002ea2..4a852d3097135 100644
--- a/test/reduce.jl
+++ b/test/reduce.jl
@@ -535,3 +535,11 @@ x = [j^2 for j in i]
 i = Base.Slice(0:0)
 x = [j+7 for j in i]
 @test sum(x) == 7
+
+@testset "initial value handling with flatten" begin
+    @test mapfoldl(
+        x -> (x, x),
+        ((a, b), (c, d)) -> (min(a, c), max(b, d)),
+        Iterators.flatten((1:2, 3:4)),
+    ) == (1, 4)
+end

From 381785b93620204ada29ade4c2f4956650ce1125 Mon Sep 17 00:00:00 2001
From: Keno Fischer <keno@juliacomputing.com>
Date: Tue, 14 Jan 2020 20:36:49 -0500
Subject: [PATCH 22/31] Change lowering of gc preserve (#34379)

This fixes #34247 by changing the way gc preserve is lowered.
Instead of lowering it in a macro, lower it in the frontend.
This allows us to use an SSA value directly for the return token
of the gc begin expression. This bypasses the slot-renaming pass
of the compiler, thus preventing the compiler from trying to save
and restore the token. Of course, this kind of code would generally
not be legal (because it uses an SSA value outside of the regular
domination relation), but since this is a julia restriction, not
an LLVM restriction, we can simply exempt gc_begin tokens from this
particular validation. This works fine at the LLVM level also, because
it doesn't have this particular restriction. It also doesn't have
the same correctness problems as doing the same for non-token values,
as the tokens get lowered away by the try/catch lowering before reaching
the LLVM backend.

(cherry picked from commit 07a16d695feeba66db2a44c640675e7974ae870b)
---
 base/compiler/ssair/verify.jl | 16 ++++++++++++----
 base/gcutils.jl               |  8 +-------
 src/julia-syntax.scm          | 19 ++++++++++++++-----
 test/core.jl                  |  9 +++++++++
 4 files changed, 36 insertions(+), 16 deletions(-)

diff --git a/base/compiler/ssair/verify.jl b/base/compiler/ssair/verify.jl
index d8297f9c2cfd1..7363e70a72725 100644
--- a/base/compiler/ssair/verify.jl
+++ b/base/compiler/ssair/verify.jl
@@ -29,6 +29,7 @@ function check_op(ir::IRCode, domtree::DomTree, @nospecialize(op), use_bb::Int,
             end
         else
             if !dominates(domtree, def_bb, use_bb) && !(bb_unreachable(domtree, def_bb) && bb_unreachable(domtree, use_bb))
+                # At the moment, we allow GC preserve tokens outside the standard domination notion
                 #@Base.show ir
                 @verify_error "Basic Block $def_bb does not dominate block $use_bb (tried to use value $(op.id))"
                 error()
@@ -189,10 +190,17 @@ function verify_ir(ir::IRCode)
                     end
                 end
             end
-            if isa(stmt, Expr) && stmt.head === :(=)
-                if stmt.args[1] isa SSAValue
-                    @verify_error "SSAValue as assignment LHS"
-                    error()
+            if isa(stmt, Expr)
+                if stmt.head === :(=)
+                    if stmt.args[1] isa SSAValue
+                        @verify_error "SSAValue as assignment LHS"
+                        error()
+                    end
+                elseif stmt.head === :gc_preserve_end
+                    # We allow gc_preserve_end tokens to span across try/catch
+                    # blocks, which isn't allowed for regular SSA values, so
+                    # we skip the validation below.
+                    continue
                 end
             end
             for op in userefs(stmt)
diff --git a/base/gcutils.jl b/base/gcutils.jl
index 95de3137deda7..f9edb5441edb8 100644
--- a/base/gcutils.jl
+++ b/base/gcutils.jl
@@ -90,13 +90,7 @@ macro preserve(args...)
     for x in syms
         isa(x, Symbol) || error("Preserved variable must be a symbol")
     end
-    s, r = gensym(), gensym()
-    esc(quote
-        $s = $(Expr(:gc_preserve_begin, syms...))
-        $r = $(args[end])
-        $(Expr(:gc_preserve_end, s))
-        $r
-    end)
+    esc(Expr(:gc_preserve, args[end], syms...))
 end
 
 """
diff --git a/src/julia-syntax.scm b/src/julia-syntax.scm
index 7ae508c59d601..5c936908afb06 100644
--- a/src/julia-syntax.scm
+++ b/src/julia-syntax.scm
@@ -2318,7 +2318,18 @@
                       ;; TODO: this is a hack to lower simple comprehensions to loops very
                       ;; early, to greatly reduce the # of functions and load on the compiler
                       (lower-comprehension (cadr e) (cadr (caddr e)) ranges))))
-          `(call (top collect) ,(cadr e) ,(caddr e)))))))
+          `(call (top collect) ,(cadr e) ,(caddr e)))))
+
+    'gc_preserve
+    (lambda (e)
+      (let* ((s (make-ssavalue))
+             (r (gensy)))
+        `(block
+          (= ,s (gc_preserve_begin ,@(cddr e)))
+          (= ,r ,(expand-forms (cadr e)))
+          (gc_preserve_end ,s)
+          ,r)))
+    ))
 
 (define (has-return? e)
   (expr-contains-p return? e (lambda (x) (not (function-def? x)))))
@@ -4009,10 +4020,8 @@ f(x) = yt(x)
              '(null))
 
             ((gc_preserve_begin)
-             (let ((s    (make-ssavalue))
-                   (args (compile-args (cdr e) break-labels linearize-args)))
-               (emit `(= ,s ,(cons (car e) args)))
-               s))
+             (let ((args (compile-args (cdr e) break-labels linearize-args)))
+               (cons (car e) args)))
 
             ;; metadata expressions
             ((line meta inbounds loopinfo gc_preserve_end aliasscope popaliasscope)
diff --git a/test/core.jl b/test/core.jl
index 23ed03072ea5a..97b66724ed3f3 100644
--- a/test/core.jl
+++ b/test/core.jl
@@ -7164,3 +7164,12 @@ function mre34206(a, n)
     return b[1].offset1
 end
 @test mre34206([44], 1) == 0
+
+# Issue #34247
+function f34247(a)
+    GC.@preserve a try
+    catch
+    end
+    true
+end
+@test f34247("")

From 2e9ceb80de2527d570917db4d6dc3b88e0d461f5 Mon Sep 17 00:00:00 2001
From: Keno Fischer <keno@juliacomputing.com>
Date: Sat, 11 Jan 2020 15:34:00 -0500
Subject: [PATCH 23/31] Force full collection in SharedArrays tests (#34349)

Fixes the same CI failure as https://github.com/JuliaLang/julia/pull/34336,
but hopefully should be immediately mergeable without objection about what
the interface is.

(cherry picked from commit 3ed4e943616b45ed8be4216c2e0c52adc17bb6ba)
---
 stdlib/SharedArrays/test/runtests.jl | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/stdlib/SharedArrays/test/runtests.jl b/stdlib/SharedArrays/test/runtests.jl
index ee741aa4a647b..481f36b81516f 100644
--- a/stdlib/SharedArrays/test/runtests.jl
+++ b/stdlib/SharedArrays/test/runtests.jl
@@ -145,9 +145,9 @@ finalize(S)
 
 # call gc 3 times to avoid unlink: operation not permitted (EPERM) on Windows
 S = nothing
-@everywhere GC.gc()
-@everywhere GC.gc()
-@everywhere GC.gc()
+@everywhere GC.gc(true)
+@everywhere GC.gc(true)
+@everywhere GC.gc(true)
 rm(fn); rm(fn2); rm(fn3)
 
 ### Utility functions
@@ -288,7 +288,7 @@ let
     id = a1.id
     aorig = nothing
     a1 = remotecall_fetch(fill!, id_other, a1, 1.0)
-    GC.gc(); GC.gc()
+    GC.gc(true); GC.gc(true)
     a1 = remotecall_fetch(fill!, id_other, a1, 1.0)
     @test haskey(SharedArrays.sa_refs, id)
     finalize(a1)

From 0665762dee8f0f8796272b439976eb6157e02523 Mon Sep 17 00:00:00 2001
From: Keno Fischer <keno@juliacomputing.com>
Date: Tue, 31 Dec 2019 09:51:02 -0500
Subject: [PATCH 24/31] Fix CI hangs on win32

After much debugging, it turns out that OpenBlas is sometimes hanging
on exit due to bad assumptions in its thread management. The upstream
discussion is at https://github.com/xianyi/OpenBLAS/pull/2350, but this
should fix our frequent win32 CI failures in the meantime.
---
 deps/blas.mk                        |  7 ++++++-
 deps/patches/openblas-winexit.patch | 27 +++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 deps/patches/openblas-winexit.patch

diff --git a/deps/blas.mk b/deps/blas.mk
index cd6026319c5dc..89656c1844365 100644
--- a/deps/blas.mk
+++ b/deps/blas.mk
@@ -99,7 +99,12 @@ $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/openblas-skylakexdgemm.patch-applied: $(BUILDDIR
 		patch -p1 -f < $(SRCDIR)/patches/openblas-skylakexdgemm.patch
 	echo 1 > $@
 
-$(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-configured: $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/openblas-skylakexdgemm.patch-applied
+$(BUILDDIR)/$(OPENBLAS_SRC_DIR)/openblas-winexit.patch-applied: $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/source-extracted
+	cd $(BUILDDIR)/$(OPENBLAS_SRC_DIR) && \
+		patch -p1 -f < $(SRCDIR)/patches/openblas-winexit.patch
+	echo 1 > $@
+
+$(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-configured: $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/openblas-skylakexdgemm.patch-applied $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/openblas-winexit.patch-applied
 	echo 1 > $@
 
 $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-compiled: $(BUILDDIR)/$(OPENBLAS_SRC_DIR)/build-configured
diff --git a/deps/patches/openblas-winexit.patch b/deps/patches/openblas-winexit.patch
new file mode 100644
index 0000000000000..6e46a647932df
--- /dev/null
+++ b/deps/patches/openblas-winexit.patch
@@ -0,0 +1,27 @@
+commit 7f4a96a353c06c2fdecb0b2464800bcf8fab6fd7
+Author: Keno Fischer <keno@juliacomputing.com>
+Date:   Sun Dec 29 15:08:13 2019 -0500
+
+    win32: Don't run cleanup if we're about to exit anyway
+    
+    If the process is about to exit, there's no point trying to do
+    a bunch of work to clean up resources. The kernel will release
+    them much more efficiently when the process exits at the end
+    of this function.
+
+diff --git a/exports/dllinit.c b/exports/dllinit.c
+index 02ff092e..56aafa95 100644
+--- a/exports/dllinit.c
++++ b/exports/dllinit.c
+@@ -48,7 +48,10 @@ BOOL APIENTRY DllMain(HINSTANCE hInst, DWORD reason, LPVOID reserved) {
+   }
+ 
+   if (reason == DLL_PROCESS_DETACH) {
+-    gotoblas_quit();
++    // If the process is about to exit, don't bother releasing any resources
++    // The kernel is much better at bulk releasing then.
++    if (!reserved)
++      gotoblas_quit();
+   }
+ 
+   return TRUE;

From 0360daa4f4b6a97533823588f279e57d5166fedd Mon Sep 17 00:00:00 2001
From: Elliot Saba <staticfloat@gmail.com>
Date: Wed, 8 Jan 2020 19:38:53 -0800
Subject: [PATCH 25/31] Bump OpenBLAS BB release to include win32 threading
 patch (#34273)

---
 deps/Versions.make                                              | 2 +-
 deps/blas.mk                                                    | 2 +-
 .../OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/md5         | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/sha512      | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/md5         | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/sha512      | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc8.tar.gz/md5         | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc8.tar.gz/sha512      | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-musl-gcc4.tar.gz/md5        | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-musl-gcc4.tar.gz/sha512     | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-musl-gcc7.tar.gz/md5        | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-musl-gcc7.tar.gz/sha512     | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-musl-gcc8.tar.gz/md5        | 1 +
 .../OpenBLAS.v0.3.5-0.aarch64-linux-musl-gcc8.tar.gz/sha512     | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-gnueabihf-gcc4.tar.gz/md5       | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-gnueabihf-gcc4.tar.gz/sha512    | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-gnueabihf-gcc7.tar.gz/md5       | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-gnueabihf-gcc7.tar.gz/sha512    | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-gnueabihf-gcc8.tar.gz/md5       | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-gnueabihf-gcc8.tar.gz/sha512    | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-musleabihf-gcc4.tar.gz/md5      | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-musleabihf-gcc4.tar.gz/sha512   | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-musleabihf-gcc7.tar.gz/md5      | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-musleabihf-gcc7.tar.gz/sha512   | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-musleabihf-gcc8.tar.gz/md5      | 1 +
 .../OpenBLAS.v0.3.5-0.arm-linux-musleabihf-gcc8.tar.gz/sha512   | 1 +
 deps/checksums/OpenBLAS.v0.3.5-0.i686-linux-gnu-gcc4.tar.gz/md5 | 1 +
 .../OpenBLAS.v0.3.5-0.i686-linux-gnu-gcc4.tar.gz/sha512         | 1 +
 deps/checksums/OpenBLAS.v0.3.5-0.i686-linux-gnu-gcc7.tar.gz/md5 | 1 +
 .../OpenBLAS.v0.3.5-0.i686-linux-gnu-gcc7.tar.gz/sha512         | 1 +
 deps/checksums/OpenBLAS.v0.3.5-0.i686-linux-gnu-gcc8.tar.gz/md5 | 1 +
 .../OpenBLAS.v0.3.5-0.i686-linux-gnu-gcc8.tar.gz/sha512         | 1 +
 .../checksums/OpenBLAS.v0.3.5-0.i686-linux-musl-gcc4.tar.gz/md5 | 1 +
 .../OpenBLAS.v0.3.5-0.i686-linux-musl-gcc4.tar.gz/sha512        | 1 +
 .../checksums/OpenBLAS.v0.3.5-0.i686-linux-musl-gcc7.tar.gz/md5 | 1 +
 .../OpenBLAS.v0.3.5-0.i686-linux-musl-gcc7.tar.gz/sha512        | 1 +
 .../checksums/OpenBLAS.v0.3.5-0.i686-linux-musl-gcc8.tar.gz/md5 | 1 +
 .../OpenBLAS.v0.3.5-0.i686-linux-musl-gcc8.tar.gz/sha512        | 1 +
 .../OpenBLAS.v0.3.5-0.i686-w64-mingw32-gcc4.tar.gz/md5          | 1 +
 .../OpenBLAS.v0.3.5-0.i686-w64-mingw32-gcc4.tar.gz/sha512       | 1 +
 .../OpenBLAS.v0.3.5-0.i686-w64-mingw32-gcc7.tar.gz/md5          | 1 +
 .../OpenBLAS.v0.3.5-0.i686-w64-mingw32-gcc7.tar.gz/sha512       | 1 +
 .../OpenBLAS.v0.3.5-0.i686-w64-mingw32-gcc8.tar.gz/md5          | 1 +
 .../OpenBLAS.v0.3.5-0.i686-w64-mingw32-gcc8.tar.gz/sha512       | 1 +
 .../OpenBLAS.v0.3.5-0.powerpc64le-linux-gnu-gcc4.tar.gz/md5     | 1 +
 .../OpenBLAS.v0.3.5-0.powerpc64le-linux-gnu-gcc4.tar.gz/sha512  | 1 +
 .../OpenBLAS.v0.3.5-0.powerpc64le-linux-gnu-gcc7.tar.gz/md5     | 1 +
 .../OpenBLAS.v0.3.5-0.powerpc64le-linux-gnu-gcc7.tar.gz/sha512  | 1 +
 .../OpenBLAS.v0.3.5-0.powerpc64le-linux-gnu-gcc8.tar.gz/md5     | 1 +
 .../OpenBLAS.v0.3.5-0.powerpc64le-linux-gnu-gcc8.tar.gz/sha512  | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-apple-darwin14-gcc4.tar.gz/md5     | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-apple-darwin14-gcc4.tar.gz/sha512  | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-apple-darwin14-gcc7.tar.gz/md5     | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-apple-darwin14-gcc7.tar.gz/sha512  | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-apple-darwin14-gcc8.tar.gz/md5     | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-apple-darwin14-gcc8.tar.gz/sha512  | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-gnu-gcc4.tar.gz/md5          | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-gnu-gcc4.tar.gz/sha512       | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-gnu-gcc7.tar.gz/md5          | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-gnu-gcc7.tar.gz/sha512       | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-gnu-gcc8.tar.gz/md5          | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-gnu-gcc8.tar.gz/sha512       | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-musl-gcc4.tar.gz/md5         | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-musl-gcc4.tar.gz/sha512      | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-musl-gcc7.tar.gz/md5         | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-musl-gcc7.tar.gz/sha512      | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-musl-gcc8.tar.gz/md5         | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-linux-musl-gcc8.tar.gz/sha512      | 1 +
 .../md5                                                         | 1 +
 .../sha512                                                      | 1 +
 .../md5                                                         | 1 +
 .../sha512                                                      | 1 +
 .../md5                                                         | 1 +
 .../sha512                                                      | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-w64-mingw32-gcc4.tar.gz/md5        | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-w64-mingw32-gcc4.tar.gz/sha512     | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-w64-mingw32-gcc7.tar.gz/md5        | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-w64-mingw32-gcc7.tar.gz/sha512     | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-w64-mingw32-gcc8.tar.gz/md5        | 1 +
 .../OpenBLAS.v0.3.5-0.x86_64-w64-mingw32-gcc8.tar.gz/sha512     | 1 +
 .../OpenBLAS.v0.3.5-2.aarch64-linux-gnu-gcc4.tar.gz/md5         | 1 -
 .../OpenBLAS.v0.3.5-2.aarch64-linux-gnu-gcc4.tar.gz/sha512      | 1 -
 .../OpenBLAS.v0.3.5-2.aarch64-linux-gnu-gcc7.tar.gz/md5         | 1 -
 .../OpenBLAS.v0.3.5-2.aarch64-linux-gnu-gcc7.tar.gz/sha512      | 1 -
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 .../OpenBLAS.v0.3.5-2.arm-linux-musleabihf-gcc8.tar.gz/md5      | 1 -
 .../OpenBLAS.v0.3.5-2.arm-linux-musleabihf-gcc8.tar.gz/sha512   | 1 -
 deps/checksums/OpenBLAS.v0.3.5-2.i686-linux-gnu-gcc4.tar.gz/md5 | 1 -
 .../OpenBLAS.v0.3.5-2.i686-linux-gnu-gcc4.tar.gz/sha512         | 1 -
 deps/checksums/OpenBLAS.v0.3.5-2.i686-linux-gnu-gcc7.tar.gz/md5 | 1 -
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 deps/checksums/OpenBLAS.v0.3.5-2.i686-linux-gnu-gcc8.tar.gz/md5 | 1 -
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 .../checksums/OpenBLAS.v0.3.5-2.i686-linux-musl-gcc7.tar.gz/md5 | 1 -
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 .../OpenBLAS.v0.3.5-2.i686-linux-musl-gcc8.tar.gz/sha512        | 1 -
 .../OpenBLAS.v0.3.5-2.i686-w64-mingw32-gcc4.tar.gz/md5          | 1 -
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 .../OpenBLAS.v0.3.5-2.i686-w64-mingw32-gcc8.tar.gz/sha512       | 1 -
 .../OpenBLAS.v0.3.5-2.powerpc64le-linux-gnu-gcc4.tar.gz/md5     | 1 -
 .../OpenBLAS.v0.3.5-2.powerpc64le-linux-gnu-gcc4.tar.gz/sha512  | 1 -
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 .../OpenBLAS.v0.3.5-2.powerpc64le-linux-gnu-gcc8.tar.gz/sha512  | 1 -
 .../OpenBLAS.v0.3.5-2.x86_64-apple-darwin14-gcc4.tar.gz/md5     | 1 -
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 .../md5                                                         | 1 -
 .../sha512                                                      | 1 -
 .../md5                                                         | 1 -
 .../sha512                                                      | 1 -
 .../md5                                                         | 1 -
 .../sha512                                                      | 1 -
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 .../OpenBLAS.v0.3.5-2.x86_64-w64-mingw32-gcc8.tar.gz/sha512     | 1 -
 158 files changed, 80 insertions(+), 80 deletions(-)
 create mode 100644 deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/md5
 create mode 100644 deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/sha512
 create mode 100644 deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/md5
 create mode 100644 deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/sha512
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diff --git a/deps/Versions.make b/deps/Versions.make
index 666a5aa714d23..74d802921fb0c 100644
--- a/deps/Versions.make
+++ b/deps/Versions.make
@@ -5,7 +5,7 @@ PCRE_BB_REL = 0
 DSFMT_VER = 2.2.3
 DSFMT_BB_REL = 0
 OPENBLAS_VER = 0.3.5
-OPENBLAS_BB_REL = 2
+OPENBLAS_BB_REL = 0
 LAPACK_VER = 3.5.0
 SUITESPARSE_VER = 5.4.0
 SUITESPARSE_BB_REL = 2
diff --git a/deps/blas.mk b/deps/blas.mk
index 89656c1844365..13b29014c808b 100644
--- a/deps/blas.mk
+++ b/deps/blas.mk
@@ -209,7 +209,7 @@ check-lapack: $(BUILDDIR)/lapack-$(LAPACK_VER)/build-checked
 else # USE_BINARYBUILDER_OPENBLAS
 
 
-OPENBLAS_BB_URL_BASE := https://github.com/JuliaPackaging/Yggdrasil/releases/download/OpenBLAS-v$(OPENBLAS_VER)-$(OPENBLAS_BB_REL)
+OPENBLAS_BB_URL_BASE := https://github.com/JuliaBinaryWrappers/OpenBLAS_jll.jl/releases/download/OpenBLAS-v$(OPENBLAS_VER)+$(OPENBLAS_BB_REL)
 OPENBLAS_BB_NAME := OpenBLAS.v$(OPENBLAS_VER)
 
 $(eval $(call bb-install,openblas,OPENBLAS,true))
diff --git a/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/md5 b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/md5
new file mode 100644
index 0000000000000..2d130cd135a25
--- /dev/null
+++ b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/md5
@@ -0,0 +1 @@
+9bbf83fce2f15f717101ec7d0df2fa4f
diff --git a/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/sha512 b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/sha512
new file mode 100644
index 0000000000000..262d053cde546
--- /dev/null
+++ b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc4.tar.gz/sha512
@@ -0,0 +1 @@
+667f9036b2ae1e16feb2c59192561017d14b843f1f967e9a150f2b3190f3d14624a4bcab322fc4ebc9ba0281d721c1ecd326fc1cf663ed3b59f57a82ea6834fd
diff --git a/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/md5 b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/md5
new file mode 100644
index 0000000000000..90a7df063b85b
--- /dev/null
+++ b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/md5
@@ -0,0 +1 @@
+1f4a939afe0bcb144e588b62be0b3d37
diff --git a/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/sha512 b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/sha512
new file mode 100644
index 0000000000000..a7b42e4cc27b1
--- /dev/null
+++ b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc7.tar.gz/sha512
@@ -0,0 +1 @@
+d203ee0b090d88fb9cf0c7639c638c6d57794c51c40489fd27c7d8bebdf5313882ba0c38860c2dd8c9ae3f8aad0731618e5fa03981db74ef2500a6b9140c6680
diff --git a/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc8.tar.gz/md5 b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc8.tar.gz/md5
new file mode 100644
index 0000000000000..6c78c684c383a
--- /dev/null
+++ b/deps/checksums/OpenBLAS.v0.3.5-0.aarch64-linux-gnu-gcc8.tar.gz/md5
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deleted file mode 100644
index 09801e687c899..0000000000000
--- a/deps/checksums/OpenBLAS.v0.3.5-2.x86_64-w64-mingw32-gcc8.tar.gz/md5
+++ /dev/null
@@ -1 +0,0 @@
-617c4587e25dc495446d389fa323c45f
diff --git a/deps/checksums/OpenBLAS.v0.3.5-2.x86_64-w64-mingw32-gcc8.tar.gz/sha512 b/deps/checksums/OpenBLAS.v0.3.5-2.x86_64-w64-mingw32-gcc8.tar.gz/sha512
deleted file mode 100644
index 38bc2a3bf33a6..0000000000000
--- a/deps/checksums/OpenBLAS.v0.3.5-2.x86_64-w64-mingw32-gcc8.tar.gz/sha512
+++ /dev/null
@@ -1 +0,0 @@
-63938a2e8ee30807cbeca92589d79d3c438f2aed3eb818735c3ab28e6a6d9835fb7cf250ea7c05fdc8949ba32769f394e6981be46c71b19a389a9b00501962ee

From d3ba27dfbdd315d856e39d6ea9376ed76f461dfe Mon Sep 17 00:00:00 2001
From: Sebastian Stock <42280794+sostock@users.noreply.github.com>
Date: Fri, 17 Jan 2020 11:07:05 +0100
Subject: [PATCH 26/31] Fix array-argument gcd for non-integers

(cherry picked from commit 3549cd190ecd0574c803de80e5f6d8d70cbf05e3)
---
 base/intfuncs.jl | 3 ++-
 test/rational.jl | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/base/intfuncs.jl b/base/intfuncs.jl
index 77938f58d5b33..2e1ec8fc50a1b 100644
--- a/base/intfuncs.jl
+++ b/base/intfuncs.jl
@@ -87,9 +87,10 @@ lcm(a::Union{Integer,Rational}, b::Union{Integer,Rational}) = lcm(promote(a,b)..
 gcd(a::Union{Integer,Rational}, b::Union{Integer,Rational}...) = gcd(a, gcd(b...))
 lcm(a::Union{Integer,Rational}, b::Union{Integer,Rational}...) = lcm(a, lcm(b...))
 
+gcd(abc::AbstractArray{<:Union{Integer,Rational}}) = reduce(gcd, abc; init=zero(eltype(abc)))
 lcm(abc::AbstractArray{<:Union{Integer,Rational}}) = reduce(lcm, abc; init=one(eltype(abc)))
 
-function gcd(abc::AbstractArray{<:Union{Integer,Rational}})
+function gcd(abc::AbstractArray{<:Integer})
     a = zero(eltype(abc))
     for b in abc
         a = gcd(a,b)
diff --git a/test/rational.jl b/test/rational.jl
index 083fb1c19c10f..52f502b4178a6 100644
--- a/test/rational.jl
+++ b/test/rational.jl
@@ -399,5 +399,7 @@ end
     @test lcm(1//3, 1) == 1//1
     @test lcm(3//1, 1//0) == 3//1
     @test lcm(0//1, 1//0) == 0//1
+
+    @test gcd([5, 2, 1//2]) == 1//2
 end
 

From 4bd73b297a1bd3f528a4196d0f1fab47b9333fa9 Mon Sep 17 00:00:00 2001
From: Sebastian Stock <42280794+sostock@users.noreply.github.com>
Date: Tue, 17 Dec 2019 20:45:43 +0100
Subject: [PATCH 27/31] Make it easier to extend lcm/gcd/gcdx to custom types

(cherry picked from commit 85eb20f9cab2100c3688029ab5123c366432b20e)
---
 base/intfuncs.jl | 17 ++++++++++-------
 test/intfuncs.jl | 11 +++++++++++
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/base/intfuncs.jl b/base/intfuncs.jl
index 2e1ec8fc50a1b..a3218f82c606b 100644
--- a/base/intfuncs.jl
+++ b/base/intfuncs.jl
@@ -82,13 +82,15 @@ end
 
 gcd(a::Union{Integer,Rational}) = a
 lcm(a::Union{Integer,Rational}) = a
-gcd(a::Union{Integer,Rational}, b::Union{Integer,Rational}) = gcd(promote(a,b)...)
-lcm(a::Union{Integer,Rational}, b::Union{Integer,Rational}) = lcm(promote(a,b)...)
-gcd(a::Union{Integer,Rational}, b::Union{Integer,Rational}...) = gcd(a, gcd(b...))
-lcm(a::Union{Integer,Rational}, b::Union{Integer,Rational}...) = lcm(a, lcm(b...))
+gcd(a::Real, b::Real) = gcd(promote(a,b)...)
+lcm(a::Real, b::Real) = lcm(promote(a,b)...)
+gcd(a::Real, b::Real, c::Real...) = gcd(a, gcd(b, c...))
+lcm(a::Real, b::Real, c::Real...) = lcm(a, lcm(b, c...))
+gcd(a::T, b::T) where T<:Real = throw(MethodError(gcd, (a,b)))
+lcm(a::T, b::T) where T<:Real = throw(MethodError(lcm, (a,b)))
 
-gcd(abc::AbstractArray{<:Union{Integer,Rational}}) = reduce(gcd, abc; init=zero(eltype(abc)))
-lcm(abc::AbstractArray{<:Union{Integer,Rational}}) = reduce(lcm, abc; init=one(eltype(abc)))
+gcd(abc::AbstractArray{<:Real}) = reduce(gcd, abc; init=zero(eltype(abc)))
+lcm(abc::AbstractArray{<:Real}) = reduce(lcm, abc; init=one(eltype(abc)))
 
 function gcd(abc::AbstractArray{<:Integer})
     a = zero(eltype(abc))
@@ -147,7 +149,8 @@ function gcdx(a::T, b::T) where T<:Integer
     end
     a < 0 ? (-a, -s0, -t0) : (a, s0, t0)
 end
-gcdx(a::Union{Integer,Rational}, b::Union{Integer,Rational}) = gcdx(promote(a,b)...)
+gcdx(a::Real, b::Real) = gcdx(promote(a,b)...)
+gcdx(a::T, b::T) where T<:Real = throw(MethodError(gcdx, (a,b)))
 
 # multiplicative inverse of n mod m, error if none
 
diff --git a/test/intfuncs.jl b/test/intfuncs.jl
index 1214172c20b73..2e492a01a539f 100644
--- a/test/intfuncs.jl
+++ b/test/intfuncs.jl
@@ -68,6 +68,17 @@ end
     @test gcdx(5, -12) == (1, 5, 2)
     @test gcdx(-25, -4) == (1, -1, 6)
 end
+@testset "gcd/lcm/gcdx for custom types" begin
+    struct MyRational <: Real
+        val::Rational{Int}
+    end
+    Base.promote_rule(::Type{MyRational}, T::Type{<:Real}) = promote_type(Rational{Int}, T)
+    (T::Type{<:Real})(x::MyRational) = T(x.val)
+
+    @test gcd(MyRational(2//3), 3) == gcd(2//3, 3) == gcd(Real[MyRational(2//3), 3])
+    @test lcm(MyRational(2//3), 3) == lcm(2//3, 3) == lcm(Real[MyRational(2//3), 3])
+    @test gcdx(MyRational(2//3), 3) == gcdx(2//3, 3)
+end
 @testset "invmod" begin
     @test invmod(6, 31) === 26
     @test invmod(-1, 3) === 2

From eaec4a7c386e06a5e953055c59b3c8147c9717de Mon Sep 17 00:00:00 2001
From: Mustafa M <mus-m@outlook.com>
Date: Sat, 18 Jan 2020 13:21:19 -0500
Subject: [PATCH 28/31] Use UUID's to generate random tempname on Windows
 (#33785)

* Use UIUD to create random tempname on Windows

* Use underscores and remove extension

* Truncate to 10 chars the UUID

* Generate the random name from a random byte array

* Update file.jl

(cherry picked from commit d759b5b3343d1b2654453b06f7e802a76c9e27e6)
---
 base/file.jl | 31 +++++++++++++++++++------------
 test/file.jl | 12 ++++++++++++
 2 files changed, 31 insertions(+), 12 deletions(-)

diff --git a/base/file.jl b/base/file.jl
index 094327922dcc5..6d4fca5fda8c5 100644
--- a/base/file.jl
+++ b/base/file.jl
@@ -517,20 +517,27 @@ function mktemp(parent::AbstractString=tempdir(); cleanup::Bool=true)
     return (filename, Base.open(filename, "r+"))
 end
 
+# generate a random string from random bytes
+function _rand_string()
+	nchars = 10
+	A = Vector{UInt8}(undef, nchars)
+	ccall((:SystemFunction036, :Advapi32), stdcall, UInt8, (Ptr{Cvoid}, UInt32), A, sizeof(A))
+
+	slug = Base.StringVector(10)
+	chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	for i = 1:nchars
+	    slug[i] = chars[(A[i] % length(chars)) + 1]
+	end
+	return name = String(slug)
+end
+
 function tempname(parent::AbstractString=tempdir(); cleanup::Bool=true)
     isdir(parent) || throw(ArgumentError("$(repr(parent)) is not a directory"))
-    seed::UInt32 = rand(UInt32)
-    while true
-        if (seed & typemax(UInt16)) == 0
-            seed += 1
-        end
-        filename = _win_tempname(parent, seed)
-        if !ispath(filename)
-            cleanup && temp_cleanup_later(filename)
-            return filename
-        end
-        seed += 1
-    end
+    name = _rand_string()
+    filename = joinpath(parent, temp_prefix * name)
+    @assert !ispath(filename)
+    cleanup && temp_cleanup_later(filename)
+    return filename
 end
 
 else # !windows
diff --git a/test/file.jl b/test/file.jl
index e15807c0adccb..ae3ce717060e0 100644
--- a/test/file.jl
+++ b/test/file.jl
@@ -50,6 +50,18 @@ end
 
 using Random
 
+@testset "that temp names are actually unique" begin
+    temps = [tempname(cleanup=false) for _ = 1:100]
+    @test allunique(temps)
+    temps = map(1:100) do _
+        path, io = mktemp(cleanup=false)
+        close(io)
+        rm(path, force=true)
+        return path
+    end
+    @test allunique(temps)
+end
+
 @testset "tempname with parent" begin
     t = tempname()
     @test dirname(t) == tempdir()

From 4865045e1b0a452b8f61478bf90c5c601550ca4d Mon Sep 17 00:00:00 2001
From: Keno Fischer <keno@juliacomputing.com>
Date: Sat, 18 Jan 2020 21:41:16 -0500
Subject: [PATCH 29/31] Check return value of SystemFunction036 (#34429)

In both places we call it. Also tabs-to-spaces for the new code
to match the formatting of the rest of the code.

(cherry picked from commit f120989cbdee2cc075ad52388cda2959aeb33e9d)
---
 base/file.jl              | 22 ++++++++++++----------
 stdlib/Random/src/RNGs.jl |  5 +++--
 2 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/base/file.jl b/base/file.jl
index 6d4fca5fda8c5..8fec68f4d7e1c 100644
--- a/base/file.jl
+++ b/base/file.jl
@@ -519,16 +519,18 @@ end
 
 # generate a random string from random bytes
 function _rand_string()
-	nchars = 10
-	A = Vector{UInt8}(undef, nchars)
-	ccall((:SystemFunction036, :Advapi32), stdcall, UInt8, (Ptr{Cvoid}, UInt32), A, sizeof(A))
-
-	slug = Base.StringVector(10)
-	chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
-	for i = 1:nchars
-	    slug[i] = chars[(A[i] % length(chars)) + 1]
-	end
-	return name = String(slug)
+    nchars = 10
+    A = Vector{UInt8}(undef, nchars)
+    windowserror("SystemFunction036 (RtlGenRandom)", 0 == ccall(
+        (:SystemFunction036, :Advapi32), stdcall, UInt8, (Ptr{Cvoid}, UInt32),
+            A, sizeof(A)))
+
+    slug = Base.StringVector(10)
+    chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+    for i = 1:nchars
+        slug[i] = chars[(A[i] % length(chars)) + 1]
+    end
+    return name = String(slug)
 end
 
 function tempname(parent::AbstractString=tempdir(); cleanup::Bool=true)
diff --git a/stdlib/Random/src/RNGs.jl b/stdlib/Random/src/RNGs.jl
index 9b1d2fce6ac1e..22271ba6109ba 100644
--- a/stdlib/Random/src/RNGs.jl
+++ b/stdlib/Random/src/RNGs.jl
@@ -43,8 +43,9 @@ end # os-test
 for T in (Bool, BitInteger_types...)
     if Sys.iswindows()
         @eval function rand!(rd::RandomDevice, A::Array{$T}, ::SamplerType{$T})
-            ccall((:SystemFunction036, :Advapi32), stdcall, UInt8, (Ptr{Cvoid}, UInt32),
-                  A, sizeof(A))
+            Base.windowserror("SystemFunction036 (RtlGenRandom)", 0 == ccall(
+                (:SystemFunction036, :Advapi32), stdcall, UInt8, (Ptr{Cvoid}, UInt32),
+                  A, sizeof(A)))
             A
         end
     else

From ea6f264e8771b76f646b416328a2352de39ed3e4 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Fri, 17 Jan 2020 03:18:24 -0500
Subject: [PATCH 30/31] remove code forcing testsets to be compiled (#34405)

(cherry picked from commit ed87ece188bea86893623fa25fca7005033e681f)
---
 stdlib/Test/src/Test.jl      | 3 ---
 stdlib/Test/test/runtests.jl | 2 --
 2 files changed, 5 deletions(-)

diff --git a/stdlib/Test/src/Test.jl b/stdlib/Test/src/Test.jl
index 732aa4347fe31..3877b5dd68203 100644
--- a/stdlib/Test/src/Test.jl
+++ b/stdlib/Test/src/Test.jl
@@ -1101,9 +1101,6 @@ function testset_beginend(args, tests, source)
     ex = quote
         _check_testset($testsettype, $(QuoteNode(testsettype.args[1])))
         local ts = $(testsettype)($desc; $options...)
-        # this empty loop is here to force the block to be compiled,
-        # which is needed for backtrace scrubbing to work correctly.
-        while false; end
         push_testset(ts)
         # we reproduce the logic of guardseed, but this function
         # cannot be used as it changes slightly the semantic of @testset,
diff --git a/stdlib/Test/test/runtests.jl b/stdlib/Test/test/runtests.jl
index 10ed2ea165cb1..e50ae7f15429c 100644
--- a/stdlib/Test/test/runtests.jl
+++ b/stdlib/Test/test/runtests.jl
@@ -607,8 +607,6 @@ end
     end
     """)
     local msg = read(pipeline(ignorestatus(`$(Base.julia_cmd()) --startup-file=no --color=no $f`), stderr=devnull), String)
-    # NOTE: This test depends on the code generated by @testset getting compiled,
-    # to get good backtraces. If it fails, check the implementation of `testset_beginend`.
     @test !occursin("do_test(", msg)
     @test !occursin("include(", msg)
     @test occursin("at " * f * ":3", msg)

From 139696bc4f5208362555a26249aeae6b08fa3488 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Mon, 20 Jan 2020 03:34:34 -0500
Subject: [PATCH 31/31] fix #34415, remove affinity setting code (#34433)

This was removed before and added back apparently by mistake.

(cherry picked from commit 592878623d376c71e5452dc2775fa2f7a4e097ca)
---
 src/init.c           | 12 ------------
 src/julia_internal.h |  1 -
 test/threads.jl      |  7 +++++++
 3 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/src/init.c b/src/init.c
index b8f668d023372..6b55e45ea4733 100644
--- a/src/init.c
+++ b/src/init.c
@@ -698,18 +698,6 @@ void _julia_init(JL_IMAGE_SEARCH rel)
     }
 #endif
 
-#if defined(__linux__)
-    int ncores = jl_cpu_threads();
-    if (ncores > 1) {
-        cpu_set_t cpumask;
-        CPU_ZERO(&cpumask);
-        for(int i=0; i < ncores; i++) {
-            CPU_SET(i, &cpumask);
-        }
-        sched_setaffinity(0, sizeof(cpu_set_t), &cpumask);
-    }
-#endif
-
     if ((jl_options.outputo || jl_options.outputbc) &&
         (jl_options.code_coverage || jl_options.malloc_log)) {
         jl_error("cannot generate code-coverage or track allocation information while generating a .o or .bc output file");
diff --git a/src/julia_internal.h b/src/julia_internal.h
index fc0dd3096a8d9..057081c0e37ad 100644
--- a/src/julia_internal.h
+++ b/src/julia_internal.h
@@ -8,7 +8,6 @@
 #include <uv.h>
 #if !defined(_MSC_VER) && !defined(__MINGW32__)
 #include <unistd.h>
-#include <sched.h>
 #else
 #define sleep(x) Sleep(1000*x)
 #endif
diff --git a/test/threads.jl b/test/threads.jl
index 4f2b3acdc014d..54e11c8df3f19 100644
--- a/test/threads.jl
+++ b/test/threads.jl
@@ -13,3 +13,10 @@ let p, cmd = `$(Base.julia_cmd()) --depwarn=error --startup-file=no threads_exec
         error("threads test failed with nthreads == $other_nthreads")
     end
 end
+
+# issue #34415 - make sure external affinity settings work
+if Sys.islinux() && Sys.CPU_THREADS > 1 && Sys.which("taskset") !== nothing
+    run_with_affinity(spec) = readchomp(`taskset -c $spec $(Base.julia_cmd()) -e "run(\`taskset -p \$(getpid())\`)"`)
+    @test endswith(run_with_affinity("1"), "2")
+    @test endswith(run_with_affinity("0,1"), "3")
+end