DOCUMENTATION

JIT Compilation Engine (src/jit/)

This directory documents the integration of the JIT compilation engine with the Cranelift backend, quiet-NaN boxing, register pre-analyses, and native instruction emission rules.

Directory Index

• jit_core.md: Details the Cranelift module integration, the method compilation pipeline, JIT FFI parameter layout, and nested local/direct wrapper-inner function ABIs.
• jit_codegen.md: Describes the CodegenCtx SSA register mapping, register pre-loading/spilling, static pointer analysis (featuring a 256-bit bitmask), bytecode type inference, NaN-boxing layout, and the inlined collection size optimization.
• jit_emitters.md: Covers the translation of bytecode instructions (arithmetic, control flow, memory, and database operations) into native Cranelift IR or FFI calls, and the eager execution pre-pass path.