dev-2022-04

New Language Features

• None

New Compiler Features

• Rework of the entire atomic intrinsics (similar to C11 in design)
  • Atomic_Memory_Order enum
  • atomic_type_is_lock_free
  • atomic_thread_fence
  • atomic_signal_fence
  • atomic_store
  • atomic_store_explicit
  • atomic_load
  • atomic_load_explicit
  • atomic_add
  • atomic_add_explicit
  • atomic_sub
  • atomic_sub_explicit
  • atomic_and
  • atomic_and_explicit
  • atomic_nand
  • atomic_nand_explicit
  • atomic_or
  • atomic_or_explicit
  • atomic_xor
  • atomic_xor_explicit
  • atomic_exchange
  • atomic_exchange_explicit
  • atomic_compare_exchange_strong
  • atomic_compare_exchange_strong_explicit
  • atomic_compare_exchange_weak
  • atomic_compare_exchange_weak_explicit
• union #shared_nil
  • This adds a feature to union which requires all the variants to have a nil value and on assign to the union, checks whether that value is nil or not. If the value is nil, the union will be nil (thus sharing the nil value)
• Improved build script for the compiler
• Numerous bug fixes

Compiler Improvements

• Improve -help messages for define/config

New Packages

• Completely redesigned core:sync
  • Designed from the ground up with making the zero value useful (no need to initialize nor destroy values)
  • Utilizes the abilities of modern OSes with native futex support
  • Primitives:
    • Mutex
    • RW_Mutex
    • Recursive_Mutex
    • Cond
    • Sema
    • Futex
  • Extended:
    • Wait_Group
    • Barrier
    • Auto_Reset_Event
    • Ticket_Mutex
    • Benaphore
    • Recursive_Benaphore
    • Once
• core:math/ease

Package Improvements

• Update Thread Pool in core:thread
• More additions to core:sys/windows
• Remove #caller_location from certain calls in core:container/small_array
• vendor:stb/easy_font fixes/improvements
• Update mem.nil_allocator to match the same implementation in runtime
• Numerous improvements and additions to core:strings
• Add nil check on ast.walk in core:odin/ast
• Numerous bug fixes