Backports for 1.10.2 (#53405)

Backported PRs:
- [x] #53205 <!-- Profile: add notes to `print()` docs -->
- [x] #53170 <!-- Remove outdated discussion about externally changing
module bindings -->
- [x] #53228 <!-- SubArray: avoid invalid elimination of singleton
indices -->
- [x] #51361 <!-- code_warntype docs: more neutral reference to
@code_warntype -->
- [x] #50480 <!-- Document --heap-size-hint in Command-line Interface
-->
- [x] #53301 <!-- Fix typo in `Sys.total_memory` docstring. -->
- [x] #53354 <!-- fix code coverage bug in tail position and `else` -->
- [x] #53388 <!-- Fix documentation: thread pool of main thread -->
- [x] #53429 <!-- Subtype: skip slow-path in `local_∀_∃_subtype` if
inputs contain no ∃ typevar. -->
- [x] #53437 <!-- Add debug variant of loader_trampolines.o -->

Need manual backport:
- [ ] #52505 <!-- fix alignment of emit_unbox_store copy -->
- [ ] #53373 <!-- fix sysimage-native-code=no option with pkgimages -->
- [ ] #53439 <!-- staticdata: fix assert from partially disabled native
code -->

Contains multiple commits, manual intervention needed:
- [ ] #52913 <!-- Added docstring for Artifacts.jl -->
- [ ] #53218 <!-- Fix interpreter_exec.jl test -->

Non-merged PRs with backport label:
- [ ] #53424 <!-- yet more atomics & cache-line fixes on work-stealing
queue -->
- [ ] #53125 <!-- coverage: count coverage where explicitly requested by
inference only -->
- [ ] #52694 <!-- Reinstate similar for AbstractQ for backward
compatibility -->
- [ ] #51479 <!-- prevent code loading from lookin in the versioned
environment when building Julia -->

Author: KristofferC

base/compiler/ssair/inlining.jl

@@ -1811,7 +1811,9 @@ function ssa_substitute!(insert_node!::Inserter,
                          spvals_ssa::Union{Nothing, SSAValue},
                          linetable_offset::Int32, boundscheck::Symbol)
     subst_inst[:flag] &= ~IR_FLAG_INBOUNDS
-    subst_inst[:line] += linetable_offset
+    if subst_inst[:line] != 0
+        subst_inst[:line] += linetable_offset
+    end
     return ssa_substitute_op!(insert_node!, subst_inst,
         val, arg_replacements, spsig, spvals, spvals_ssa, boundscheck)
 end

base/compiler/ssair/passes.jl

@@ -1205,8 +1205,12 @@ function try_inline_finalizer!(ir::IRCode, argexprs::Vector{Any}, idx::Int,
             ssa_rename[ssa.id]
         end
         stmt′ = ssa_substitute_op!(InsertBefore(ir, SSAValue(idx)), inst, stmt′, argexprs, mi.specTypes, mi.sparam_vals, sp_ssa, :default)
+        newline = inst[:line]
+        if newline != 0
+            newline += linetable_offset
+        end
         ssa_rename[idx′] = insert_node!(ir, idx,
-            NewInstruction(inst; stmt=stmt′, line=inst[:line]+linetable_offset),
+            NewInstruction(inst; stmt=stmt′, line=newline),
             attach_after)
     end
 

base/subarray.jl

@@ -127,6 +127,11 @@ _maybe_reshape_parent(A::AbstractArray, ::NTuple{1, Bool}) = reshape(A, Val(1))
 _maybe_reshape_parent(A::AbstractArray{<:Any,1}, ::NTuple{1, Bool}) = reshape(A, Val(1))
 _maybe_reshape_parent(A::AbstractArray{<:Any,N}, ::NTuple{N, Bool}) where {N} = A
 _maybe_reshape_parent(A::AbstractArray, ::NTuple{N, Bool}) where {N} = reshape(A, Val(N))
+# The trailing singleton indices could be eliminated after bounds checking.
+rm_singleton_indices(ndims::Tuple, J1, Js...) = (J1, rm_singleton_indices(IteratorsMD._splitrest(ndims, index_ndims(J1)), Js...)...)
+rm_singleton_indices(::Tuple{}, ::ScalarIndex, Js...) = rm_singleton_indices((), Js...)
+rm_singleton_indices(::Tuple) = ()
+
 """
     view(A, inds...)
 
@@ -173,15 +178,12 @@ julia> view(2:5, 2:3) # returns a range as type is immutable
 3:4
 ```
 """
-function view(A::AbstractArray{<:Any,N}, I::Vararg{Any,M}) where {N,M}
+function view(A::AbstractArray, I::Vararg{Any,M}) where {M}
     @inline
     J = map(i->unalias(A,i), to_indices(A, I))
     @boundscheck checkbounds(A, J...)
-    if length(J) > ndims(A) && J[N+1:end] isa Tuple{Vararg{Int}}
-        # view([1,2,3], :, 1) does not need to reshape
-        return unsafe_view(A, J[1:N]...)
-    end
-    unsafe_view(_maybe_reshape_parent(A, index_ndims(J...)), J...)
+    J′ = rm_singleton_indices(ntuple(Returns(true), Val(ndims(A))), J...)
+    unsafe_view(_maybe_reshape_parent(A, index_ndims(J′...)), J′...)
 end
 
 # Ranges implement getindex to return recomputed ranges; use that for views, too (when possible)

base/sysinfo.jl

@@ -276,7 +276,7 @@ free_memory() = ccall(:uv_get_available_memory, UInt64, ())
 
 Get the total memory in RAM (including that which is currently used) in bytes.
 This amount may be constrained, e.g., by Linux control groups. For the unconstrained
-amount, see `Sys.physical_memory()`.
+amount, see `Sys.total_physical_memory()`.
 """
 function total_memory()
     constrained = ccall(:uv_get_constrained_memory, UInt64, ())

cli/Makefile

@@ -47,7 +47,7 @@ LIB_DOBJS := $(BUILDDIR)/loader_lib.dbg.obj
 # If this is an architecture that supports dynamic linking, link in a trampoline definition
 ifneq (,$(wildcard $(SRCDIR)/trampolines/trampolines_$(ARCH).S))
 LIB_OBJS += $(BUILDDIR)/loader_trampolines.o
-LIB_DOBJS += $(BUILDDIR)/loader_trampolines.o
+LIB_DOBJS += $(BUILDDIR)/loader_trampolines.dbg.obj
 endif
 
 default: release
@@ -64,6 +64,8 @@ $(BUILDDIR)/loader_exe.dbg.obj : $(SRCDIR)/loader_exe.c $(HEADERS) $(JULIAHOME)/
 	@$(call PRINT_CC, $(CC) $(DEBUGFLAGS) $(LOADER_CFLAGS) -c $< -o $@)
 $(BUILDDIR)/loader_trampolines.o : $(SRCDIR)/trampolines/trampolines_$(ARCH).S $(HEADERS) $(SRCDIR)/trampolines/common.h
 	@$(call PRINT_CC, $(CC) $(SHIPFLAGS) $(LOADER_CFLAGS) $< -c -o $@)
+$(BUILDDIR)/loader_trampolines.dbg.obj : $(SRCDIR)/trampolines/trampolines_$(ARCH).S $(HEADERS) $(SRCDIR)/trampolines/common.h
+	@$(call PRINT_CC, $(CC) $(DEBUGFLAGS) $(LOADER_CFLAGS) $< -c -o $@)
 
 # Debugging target to help us see what kind of code is being generated for our trampolines
 dump-trampolines: $(SRCDIR)/trampolines/trampolines_$(ARCH).S

deps/checksums/NetworkOptions-0bd33455cf3c77f2f87bf64167b64611dc5ff128.tar.gz/md5

@@ -0,0 +1 @@
+193abc96d1ea3a83096ba8401acbc5fa

deps/checksums/NetworkOptions-0bd33455cf3c77f2f87bf64167b64611dc5ff128.tar.gz/sha512

@@ -0,0 +1 @@
+17f7567be44c2ff3e2c567311cd716191127d0d0f9a4a226d7c06003a5b455343dd8e308032f942bb0a5b95e4b5defc530cc2cda9dfff482aab6f688080c20e7

deps/checksums/NetworkOptions-aab83e5dd900c874826d430e25158dff43559d78.tar.gz/md5

@@ -142,6 +142,7 @@ The following is a complete list of command-line switches available when launchi
 |`--output-incremental={yes\|no*}`      |Generate an incremental output file (rather than complete)|
 |`--trace-compile={stderr,name}`        |Print precompile statements for methods compiled during execution or save to a path|
 |`--image-codegen`                      |Force generate code in imaging mode|
+|`--heap-size-hint=<size>`              |Forces garbage collection if memory usage is higher than that value. The memory hint might be specified in megabytes (e.g., 500M) or gigabytes (e.g., 1G)|
 
 
 !!! compat "Julia 1.1"