asmjit/asmjit

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

4588 stars · 595 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

AsmJit is a lightweight C++ library for low-latency machine code generation supporting X86, X86_64, and AArch64 architectures. It provides a type-safe assembler/builder/compiler API with an optional register allocator, instruction database, and virtual memory management for JIT compilation.

Use cases

• generate machine code at runtime for a JIT compiler
• assemble x86-64 instructions programmatically in C++
• emit AArch64 code with a register allocator
• build a DSL that compiles to native code
• inspect and validate CPU instructions
• execute dynamically generated native functions

When to choose

• you need low-latency runtime code generation in C++ with no dependencies
• you want type-safe assembly emission with compile-time semantic checks
• you target both x86/x64 and AArch64 from one API
• you need an optional register allocator instead of hand-assigning registers

When to avoid

• you need a full optimizing compiler backend like LLVM
• you want to compile from a high-level language rather than emit instructions
• your project is not C/C++ or cannot link native libraries

Facets

library · maturity active

compiler parser developer-tools compilers developer-tools performance programming-languages cpp cross-platform windows jit assembler code-generation x86 aarch64 machine-code register-allocator linux macos

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