Merge branch 'refactor-pre-mmtk' into add-mmtk-upstream

.gitignore

@@ -34,6 +34,7 @@
 .DS_Store
 .idea/*
 .vscode/*
+.zed/*
 *.heapsnapshot
 .cache
 # Buildkite: Ignore the entire .buildkite directory

Makefile

@@ -82,7 +82,7 @@ julia-deps: | $(DIRS) $(build_datarootdir)/julia/base $(build_datarootdir)/julia
 julia-stdlib: | $(DIRS) julia-deps
 	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT)/stdlib
 
-julia-base: julia-deps $(build_sysconfdir)/julia/startup.jl $(build_man1dir)/julia.1 $(build_datarootdir)/julia/julia-config.jl
+julia-base: julia-deps $(build_sysconfdir)/julia/startup.jl $(build_man1dir)/julia.1 $(build_datarootdir)/julia/julia-config.jl $(build_datarootdir)/julia/juliac.jl $(build_datarootdir)/julia/juliac-buildscript.jl
 	@$(MAKE) $(QUIET_MAKE) -C $(BUILDROOT)/base
 
 julia-libccalltest: julia-deps
@@ -181,7 +181,7 @@ $(build_sysconfdir)/julia/startup.jl: $(JULIAHOME)/etc/startup.jl | $(build_sysc
 	@echo Creating usr/etc/julia/startup.jl
 	@cp $< $@
 
-$(build_datarootdir)/julia/julia-config.jl: $(JULIAHOME)/contrib/julia-config.jl | $(build_datarootdir)/julia
+$(build_datarootdir)/julia/%: $(JULIAHOME)/contrib/% | $(build_datarootdir)/julia
 	$(INSTALL_M) $< $(dir $@)
 
 $(build_depsbindir)/stringreplace: $(JULIAHOME)/contrib/stringreplace.c | $(build_depsbindir)
@@ -410,7 +410,7 @@ endif
 	$(INSTALL_F) $(JULIAHOME)/contrib/julia.appdata.xml $(DESTDIR)$(datarootdir)/metainfo/
 	# Install terminal info database
 ifneq ($(WITH_TERMINFO),0)
-	cp -R -L $(build_datarootdir)/terminfo $(DESTDIR)$(datarootdir)
+	cp -R -L $(build_datarootdir)/julia/terminfo $(DESTDIR)$(datarootdir)/julia/
 endif
 
 	# Update RPATH entries and JL_SYSTEM_IMAGE_PATH if $(private_libdir_rel) != $(build_private_libdir_rel)

NEWS.md

@@ -4,6 +4,8 @@ Julia v1.12 Release Notes
 New language features
 ---------------------
 
+- New option `--trim` for building "trimmed" binaries, where code not provably reachable from entry points
+  is removed. Entry points can be marked using `Base.Experimental.entrypoint` ([#55047]).
 - A new keyword argument `usings::Bool` has been added to `names`. By using this, we can now
   find all the names available in module `A` by `names(A; all=true, imported=true, usings=true)`. ([#54609])
 - the `@atomic(...)` macro family supports now the reference assignment syntax, e.g.
@@ -35,6 +37,10 @@ Language changes
    expression within a given `:toplevel` expression to make use of macros
    defined earlier in the same `:toplevel` expression. ([#53515])
 
+ - Trivial infinite loops (like `while true; end`) are no longer undefined
+   behavior. Infinite loops that actually do things (e.g. have side effects
+   or sleep) were never and are still not undefined behavior. ([#52999])
+
 Compiler/Runtime improvements
 -----------------------------
 
@@ -57,6 +63,7 @@ variables. ([#53742]).
 * New `--trace-compile-timing` option to report how long each method reported by `--trace-compile` took
   to compile, in ms. ([#54662])
 * `--trace-compile` now prints recompiled methods in yellow or with a trailing comment if color is not supported ([#55763])
+* New `--trace-dispatch` option to report methods that are dynamically dispatched ([#55848]).
 
 Multi-threading changes
 -----------------------
@@ -175,6 +182,10 @@ Standard library changes
 
 #### InteractiveUtils
 
+* New macros `@trace_compile` and `@trace_dispatch` for running an expression with
+  `--trace-compile=stderr --trace-compile-timing` and `--trace-dispatch=stderr` respectively enabled.
+  ([#55915])
+
 Deprecated or removed
 ---------------------
 

base/Base.jl

@@ -306,7 +306,6 @@ end
 include("hashing.jl")
 include("rounding.jl")
 include("div.jl")
-include("rawbigints.jl")
 include("float.jl")
 include("twiceprecision.jl")
 include("complex.jl")
@@ -649,7 +648,7 @@ function __init__()
     empty!(explicit_loaded_modules)
     empty!(loaded_precompiles) # If we load a packageimage when building the image this might not be empty
     for (mod, key) in module_keys
-        loaded_precompiles[key => module_build_id(mod)] = mod
+        push!(get!(Vector{Module}, loaded_precompiles, key), mod)
     end
     if haskey(ENV, "JULIA_MAX_NUM_PRECOMPILE_FILES")
         MAX_NUM_PRECOMPILE_FILES[] = parse(Int, ENV["JULIA_MAX_NUM_PRECOMPILE_FILES"])

base/abstractarray.jl

@@ -1101,11 +1101,8 @@ function copyto_unaliased!(deststyle::IndexStyle, dest::AbstractArray, srcstyle:
             end
         else
             # Dual-iterator implementation
-            ret = iterate(iterdest)
-            @inbounds for a in src
-                idx, state = ret::NTuple{2,Any}
-                dest[idx] = a
-                ret = iterate(iterdest, state)
+            for (Idest, Isrc) in zip(iterdest, itersrc)
+                @inbounds dest[Idest] = src[Isrc]
             end
         end
     end

base/abstractdict.jl

@@ -392,6 +392,10 @@ Dict{String, Float64} with 3 entries:
 
 julia> ans == mergewith(+)(a, b)
 true
+
+julia> mergewith(-, Dict(), Dict(:a=>1))  # Combining function only used if key is present in both
+Dict{Any, Any} with 1 entry:
+  :a => 1
 ```
 """
 mergewith(combine, d::AbstractDict, others::AbstractDict...) =

base/array.jl

@@ -415,7 +415,7 @@ function fill!(a::Union{Array{UInt8}, Array{Int8}}, x::Integer)
     ref = a.ref
     t = @_gc_preserve_begin ref
     p = unsafe_convert(Ptr{Cvoid}, ref)
-    memset(p, x isa eltype(a) ? x : convert(eltype(a), x), length(a))
+    memset(p, x isa eltype(a) ? x : convert(eltype(a), x), length(a) % UInt)
     @_gc_preserve_end t
     return a
 end