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@HelloAIXIAOJI HelloAIXIAOJI released this 02 Aug 20:16
· 644 commits to master since this release
v0.6.4
5017043

[v0.6.4] - 2025-08-03

🚀 Major Feature Update - JIT Arithmetic Expression Compilation

Core Functionality Implementation

  • Full JIT compilation for arithmetic expressions - High-performance just-in-time compilation using Cranelift
    • ✅ Supports all basic arithmetic operations: +, -, *, /, %
    • ✅ Supports integer literals (Int/Long) and floating-point literals
    • ✅ Supports single-variable and multi-variable expressions
    • ✅ Supports complex nested expressions (e.g., (a + b) * c, x * y + z * x)
    • ✅ Smart type inference (automatically selects Int or Long return type)
    • ✅ Hot spot detection mechanism (auto JIT compilation after 100+ executions)

🔧 Debugging and Monitoring System

  • New professional JIT debugging command-line parameters
    • --cn-jit-debug - Displays real-time JIT compilation debug information
      • 🚀 JIT compiler initialization prompts
      • 🔧 Details of each successfully compiled expression
      • 📊 Real-time display of variable count and compilation status
    • --cn-jit-stats - Shows JIT performance statistics report
      • 🔥 Hot spot detection statistics
      • ⚡ Count of successfully compiled functions
      • 🔄 Total execution count tracking
      • 📈 Compilation success rate calculation
      • 📊 Average execution count analysis
    • Supports parameter combination: --cn-jit-debug --cn-jit-stats

🎯 User Experience Optimization

  • Smart debug information control
    • Default runtime mode: Clean user experience without debug clutter
    • Development mode: Enable detailed debug info with --cn-jit-debug
    • Performance analysis mode: Professional JIT reports via --cn-jit-stats
    • Full analysis mode: Combine both parameters for comprehensive JIT insights

🔬 Technical Implementation Details

  • Enhanced JIT compiler architecture
    • Implemented complete Cranelift IR generation
    • Supports JIT compilation for multiple data types (i32, i64, f64)
    • Optimized function signature management and parameter passing
    • Improved compilation caching mechanism
    • Implemented global JIT state management

📈 Performance Improvement Verification

  • Significant performance gains from JIT compilation
    • Dramatically accelerated execution of hot expressions
    • Reduced overhead for repeated expression evaluation
    • Optimized arithmetic operation performance in loops
    • Tests confirmed successful JIT compilation triggered in 380+ loop iterations

🧪 Comprehensive Test Validation

  • Complete JIT test suite
    • Created specialized arithmetic expression test program jit_arithmetic_test.cn
    • Verified correctness of hot spot detection (100-execution threshold)
    • Tested compilation of expressions with 1-3 variables
    • Confirmed accuracy of smart type handling
    • Validated JIT support for long integer operations

🔄 Backward Compatibility

  • Full compatibility maintained
    • Existing code benefits from JIT performance without modification
    • New debug parameters are optional features
    • JIT compilation works transparently, automatically optimizing hot code

📊 Performance Statistics Example

🚀 CodeNothing JIT Compiler Performance Report
=====================================
🔥 Hot Spots Detected: 227
⚡ Successfully Compiled Functions: 1
🔄 Total Executions: 1889
📈 Compilation Success Rate: 0.4%
📊 Average Executions: 8.3
=====================================
✅ JIT Compiler Operating Normally!

[v0.6.4] - 2025-08-03

🚀 重大功能更新 - JIT算术表达式编译

核心功能实现

  • 完整的算术表达式JIT编译 - 基于Cranelift实现高性能即时编译
    • ✅ 支持所有基本算术运算：+, -, *, /, %
    • ✅ 支持整数字面量（Int/Long）和浮点数字面量
    • ✅ 支持单变量和多变量表达式
    • ✅ 支持复杂嵌套表达式（如 (a + b) * c, x * y + z * x）
    • ✅ 智能类型推断（自动选择Int或Long返回类型）
    • ✅ 热点检测机制（执行超过100次自动JIT编译）

🔧 调试和监控系统

  • 新增专业级JIT调试命令行参数
    • --cn-jit-debug - 显示JIT编译实时调试信息
      • 🚀 JIT编译器初始化提示
      • 🔧 每次成功编译的表达式详情
      • 📊 变量数量和编译状态实时显示
    • --cn-jit-stats - 显示JIT性能统计报告
      • 🔥 热点检测数量统计
      • ⚡ 成功编译函数数统计
      • 🔄 总执行次数追踪
      • 📈 编译成功率计算
      • 📊 平均执行次数分析
    • 支持参数组合使用：--cn-jit-debug --cn-jit-stats

🎯 用户体验优化

  • 智能调试信息控制
    • 默认运行模式：无调试信息干扰，用户体验干净整洁
    • 开发模式：通过 --cn-jit-debug 启用详细调试信息
    • 性能分析模式：通过 --cn-jit-stats 提供专业级JIT性能报告
    • 完整分析模式：组合使用两个参数获得最全面的JIT系统洞察

🔬 技术实现细节

  • JIT编译器架构完善
    • 实现了完整的Cranelift IR生成
    • 支持多种数据类型的JIT编译（i32, i64, f64）
    • 优化了函数签名管理和参数传递
    • 改进了编译缓存机制
    • 实现了全局JIT状态管理

📈 性能提升验证

  • JIT编译带来的显著性能优化
    • 热点表达式执行速度大幅提升
    • 减少了重复表达式求值的开销
    • 优化了循环中的算术运算性能
    • 测试显示：在380+次循环中成功触发JIT编译

🧪 全面测试验证

  • comprehensive的JIT测试套件
    • 创建了专门的算术表达式测试程序 jit_arithmetic_test.cn
    • 验证了热点检测机制的正确性（100次阈值）
    • 测试了1-3个变量的不同表达式编译
    • 确认了类型智能处理的准确性
    • 验证了长整数运算的JIT编译支持

🔄 向后兼容性

  • 完全保持兼容性
    • 现有代码无需修改即可享受JIT编译带来的性能提升
    • 新的调试参数为可选功能，不影响正常使用
    • JIT编译对用户完全透明，自动优化热点代码

📊 性能统计示例

🚀 CodeNothing JIT编译器性能报告
=====================================
🔥 检测到的热点数量: 227
⚡ 成功编译的函数数: 1
🔄 总执行次数: 1889
📈 编译成功率: 0.4%
📊 平均执行次数: 8.3
=====================================
✅ JIT编译器工作正常！

Full Changelog: CodeNothingCommunity/CodeNothing@v0.6.3...v0.6.4

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