MLton 20241230

http://mlton.org/Release20241230

• Compiler.
  • Enhance and fix bugs in Useless and ConstantPropagation SSA optimization passes.
  • Update LLVM codegen; using the LLVM codegen requires LLVM 15 (or higher).
  • Update elaboration error messages involving constants and infix patterns and expressions.
  • Accept a non-semicolon terminated final expression in the syntax of programs.
  • Eliminate (expert) -profile time-label compile-time option.
  • Fix -pi-style pie compile-time option.
• Runtime.
  • Fix bug in heap resizing that could lead to a segmentation fault.
  • Fix bug with -align 4 and mark-compact GC.
  • Fix bug in GC_sequenceCopy failing to update card map when
    copying object pointers.
• Libraries.
  • Basis Library.
    • Fix bug in ImperativeIO.getInstream.
    • Fix bug in Date.localOffset for time zones east of prime meridian.
    • Fix bugs in WORD.scan when 0 is followed by w or x or wx but not by more digits.
  • Other libraries.
    • Updated: ckit library, MLLPT library, MLRISC library, SML/NJ library
• Other.
  • Add preliminary support for wasm32-wasi.
  • Add support for loongarch64 architecture.
  • Update Makefiles to simplify bootstrapping.