v0.19.0

Added

• implement basic jit branch instructions
• enable creation of jit control flow graph blocks
• generate jit control flow graph using cranelift blocks
• optimize operand stack layout
• optimize jit Instruction::Return
• optimize operand stack to prevent allocation when not used; e.g. Object.<init>()
• implement jit operand stack

Fixed

• add jit cfg exception blocks
• add jit block support for ifnull and ifnonnull
• add jit control flow logic for if_acmpeq and if_acmpne
• correct lcmp, dcmpl, dcmpg, fcmpl, fcmpg to pass stack values through block params
• correct jit dcmpl, dcmpg, fcmpl, fcmpg to emit float instructions instead of int.
• correct jit invoke* instruction parameter processing
• correct jit field, invoke and stack simulation errors

Other

• minor jit readme update
• simplify jit stack implementations
• update to Rust 1.87.0
• improve jit instruction simulation test coverage
• refactor to use block params for OperandStack
• update jit operand stack to use cranelift stack slot
• only enable jit verifier when debug assertions are enabled
• update to clap=4.5.38, os_info=3.11.0, sysinfo=0.35.1, tempfile=3.20.0