ci: update linux to llvm12 tarball

ci: macos-aarch64 update dep tarballs for llvm12

os/posix: handle ECONNRESET for write/writev

Merge remote-tracking branch 'origin/llvm12'

Merge pull request #8518 from akvadrako/doc-field-align

translate-c: wrap switch statements in a while (true) loop

Merge pull request #8517 from ziglang/zld-archive-fix

zld: cleanup redundant changes

zld: rebase to new naming conv for aarch64

zld: add x86_64 relocs

zld: save locals per TU

zld: differentiate between static and global in stabs

zld: streamline tags for Symbol

zld: fix indirect symtab

zld: fix rebase vs bind for GOT entries

zld: fix parsing debug info

zld: limit exports to just main entrypoint

zld: move parsing debug info into object

zld: add prelim support for locals

zld: flush MachO

zld: resolve target addresses for relocs

zld: resolve stubs and GOT entries

zld: migrate parts of main to new relocs

zld: preprocess relocs on arm64

zld: allocate addresses for global symbols

zld: store a single global symtab

zld: start work on reloc preprocessing

zld: allocate segments based on worst-case and upper-limit

zld: assume remaining undefs are from libSystem

zld: refactor object and archive parsing

zld: redo symbol resolution in objects

stage1: resolve builtin types and values via std.builtin

Merge pull request #8502 from xackus/std-docs

CI: update brew before installing pkgs

Merge pull request #8477 from joachimschmidt557/stage2-arm

Merge pull request #8497 from LemonBoy/some-ppc-fixes

Merge pull request #8483 from fengb/powerpc

azure: OnMasterSuccess dependsOn BuildMacOS_arm64

ci: remove superfluous linefeed from macos arm64

test: overhaul stack_trace testing

macos: add aarch64 (arm64) to downloads page

zig fmt: fix line comment detection

Fix langref.html anchor navigation

lib/std: remove empty init from HashMapUnmanaged

zig fmt: render array init on one line if no trailing comma

stage2: fix case where public variables did not work

stage2: fix regression from previous commit

stage2: fix stderr deadlock and slightly wrong tty coloring

Merge pull request #8470 from ziglang/stage2-start

Merge pull request #8439 from Luukdegram/wasm-mem

testing: Avoid @import-ing builtins module

testing: Avoid printing expected line twice

testing: Use indexOfScalar instead of indexOf

zig fmt: Fix rendering of arrays with single row

Merge pretty printing compile errors branch

std docs: fix layout broken by the banner

Merge pull request #8464 from gracefuu/grace/wasm-ops

stage2 AArch64: Add conditional branch instructions

Merge pull request #8459 from joachimschmidt557/stage2-regalloc

translate-c: fix meta.cast to ?*c_void

Merge pull request #8449 from ziglang/stage2-enums

netbsd: minor fixes to allow stage1 to build

AstGen: fix `@breakpoint` ZIR

test: fix std.time timing tests to skip on failure

stage2: do not set clang_passthrough_mode for `zig run`

Merge pull request #8416 from gracefuu/grace/wasm-ops

translate-c: Add support for vector expressions

std/build: fix ?[:0]const u8 build options

stage2: Default AVR generic cpu to avr2

os/linux: return error on EALREADY for connect() and getsockoptError()

Fixed error types for GetSeekPosError

Tidy-up in json test module (#8431)

std docs: enhance search browser history UX

LLVM sub-arch triple: remove TODO comment

glibc: update ABI files to 2.33

glibc: update headers to 2.33

os/bits/linux: add IPv6 socket options

translate-c: fix calls with no args in macros

Switch std.json to use an ordered hashmap

Merge pull request #8410 from antlilja/remove-undefined-math

stage2: implement Type.onePossibleValue for structs

stage2: Sema: implement validate_struct_init_ptr

stage2: progress towards basic structs

stage2 AArch64: Add ldrh and ldrb instructions

docgen: correct the progress bar

stage2 register_manager: Add unit tests for tryAllocReg and allocReg

stage2 codegen: Extract register management code into separate file

Merge pull request #8028 from mguaypaq/nosuspend-allow

docs: document the nosuspend keyword (#7972)

make visited links readable in the stdlib docs warning bar

added warning banner to stdlib docs

Merge pull request #7792 from zanderxyz/zanderxyz/priority-dequeue

put async frame in correct addrspace

Merge pull request #8412 from g-w1/fix-docgen-test-release

test: fix io_uring timing test to skip on failure

stage2: implement structs in the frontend

stage2: AstGen and ZIR printing for struct decls

zig cc: copy .pdb files from zig-cache/ when appropriate

stage2: implement struct init syntax with ptr result loc

os: handle ECONNRESET for connect() syscall