Xilinx/llvm-aie
Dec 2024 – Jan 2025
2 Months active
Languages Used
C++LLVM IR
Technical Skills
Code RefactoringCompiler DevelopmentDebuggingLLVMLLVM Pass DevelopmentRISC-V
LiqinWeng
PROFILE
Liqinweng
Liqin Weng contributed to LLVM-based projects such as Xilinx/llvm-project, Xilinx/llvm-aie, and llvm/clangir, focusing on compiler optimization and code generation for RISC-V architectures. Over three months, Liqin enhanced vectorization infrastructure, improved cost modeling for floating-point operations, and refactored debug logging for better code maintainability. Using C++ and LLVM IR, Liqin implemented features like EVL vectorization support for cast intrinsics and expanded VP intrinsic lowering to additional integer operations, directly improving loop performance and cost estimation accuracy. The work demonstrated depth in low-level optimization, careful attention to testing reliability, and a commitment to maintainable, readable code across repositories.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
13Total
Bugs
2
Commits
13
Features
7
Lines of code
4,046
Activity Months3
Your Network
1148 peopleSame Organization
@spacemit.com7
Work History
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focused on code readability improvements and maintainability in the llvm/clangir project. The work centers on non-functional refactoring of debug logging to align with project style and improve developer experience.
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focused on code readability improvements and maintainability in the llvm/clangir project. The work centers on non-functional refactoring of debug logging to align with project style and improve developer experience.
June 2025
January 2025
4 Commits • 3 Features
Jan 1, 2025Monthly performance summary for 2025-01 focused on delivering significant vectorization and cost-model enhancements in Xilinx/llvm-aie, with measurable impact on cost estimation accuracy and vector optimization capabilities. Highlights include RISC-V bf16/f16 cost model improvements, VP vectorization infra improvements for fast-math flag propagation and step-vector creation, and expanded VP intrinsics lowering to more integer operations.
January 2025
4 Commits • 3 Features
Jan 1, 2025Monthly performance summary for 2025-01 focused on delivering significant vectorization and cost-model enhancements in Xilinx/llvm-aie, with measurable impact on cost estimation accuracy and vector optimization capabilities. Highlights include RISC-V bf16/f16 cost model improvements, VP vectorization infra improvements for fast-math flag propagation and step-vector creation, and expanded VP intrinsics lowering to more integer operations.
December 2024
8 Commits • 3 Features
Dec 1, 2024Month: 2024-12 – Delivery focused on LLVM-based performance optimizations, EVL-vectorization enhancements, and test reliability improvements across Xilinx/llvm-project and Xilinx/llvm-aie. These changes deliver tangible business value by unlocking more folding opportunities on RISC-V, enabling cast-based vectorization with EVL, and strengthening testing stability for VPlan/EVL workflows.
8 Commits • 3 Features
Dec 1, 2024Month: 2024-12 – Delivery focused on LLVM-based performance optimizations, EVL-vectorization enhancements, and test reliability improvements across Xilinx/llvm-project and Xilinx/llvm-aie. These changes deliver tangible business value by unlocking more folding opportunities on RISC-V, enabling cast-based vectorization with EVL, and strengthening testing stability for VPlan/EVL workflows.
December 2024
Activity
Loading activity data...
Quality Metrics
Correctness97.0%
Maintainability93.8%
Architecture93.8%
Performance94.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++LLVM IR
Technical Skills
C++ DevelopmentCode GenerationCode RefactoringCompiler DevelopmentCompiler OptimizationCost ModelingDebuggingFloating-Point ArithmeticIntrinsic FunctionsLLVMLLVM IRLLVM Pass DevelopmentLow-Level OptimizationRISC-VRISC-V Architecture
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
Xilinx/llvm-project
Dec 2024 – Dec 2024
1 Month active
Languages Used
C++LLVM IR
Technical Skills
Code GenerationCompiler DevelopmentCompiler OptimizationLLVMRISC-VRISC-V Architecture
llvm/clangir
Jun 2025 – Jun 2025
1 Month active
Languages Used
C++
Technical Skills
Code RefactoringCompiler DevelopmentDebugging