rust-lang/gcc
Jun 2025 – Sep 2025
2 Months active
Languages Used
CC++
Technical Skills
Assembly LanguageCompiler DevelopmentCompiler TestingDebuggingPerformance OptimizationTest Case Maintenance
Cui, Lili
PROFILE
Cui, Lili
Worked on the rust-lang/gcc repository to deliver targeted improvements to x86 shrink wrapping, introducing separate handling for function prologues and epilogues and optimizing instruction usage by replacing push/pop with mov. Addressed stack frame and register save/restore logic in C and C++, resulting in measurable performance gains on SPEC CPU 2017 and improved cross-platform stability. Fixed critical bugs in shrink wrapping and register allocation, including resolving overflows in gcc/ira-color by refactoring soft-conflict logic. Expanded test coverage and maintained test cases to ensure robust behavior across environments, demonstrating strong skills in compiler development, debugging, performance optimization, and x86 architecture.
Overall Statistics
Feature vs Bugs
33%Features
Repository Contributions
5Total
Bugs
2
Commits
5
Features
1
Lines of code
552
Activity Months2
Your Network
2389 peopleSame Organization
@intel.com2109
Shared Repositories
280
Work History
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for rust-lang/gcc development focusing on stabilizing the register allocation path and maintaining performance. Delivered a critical fix to ira-color soft-conflict handling that prevents expensive overflows, validated by benchmarks showing no regressions and some improvements. Highlights productivity, collaboration, and readiness for broader optimization passes.
1 Commits
Sep 1, 2025September 2025 monthly summary for rust-lang/gcc development focusing on stabilizing the register allocation path and maintaining performance. Delivered a critical fix to ira-color soft-conflict handling that prevents expensive overflows, validated by benchmarks showing no regressions and some improvements. Highlights productivity, collaboration, and readiness for broader optimization passes.
September 2025
June 2025
4 Commits • 1 Features
Jun 1, 2025June 2025: Delivered targeted x86 shrink-wrapping improvements and stabilized shrink wrapping across backends for rust-lang/gcc. Achieved measurable performance benefits and strengthened cross-environment robustness, enabling more reliable releases and platform coverage.
June 2025
4 Commits • 1 Features
Jun 1, 2025June 2025: Delivered targeted x86 shrink-wrapping improvements and stabilized shrink wrapping across backends for rust-lang/gcc. Achieved measurable performance benefits and strengthened cross-environment robustness, enabling more reliable releases and platform coverage.
Activity
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Quality Metrics
Correctness88.0%
Maintainability84.0%
Architecture76.0%
Performance76.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++
Technical Skills
Assembly LanguageCode RefactoringCompiler DevelopmentCompiler OptimizationCompiler TestingDebuggingPerformance OptimizationRegister AllocationTest Case MaintenanceTestingx86 Architecture
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