OpenVADL/openvadl
Mar 2026 – May 2026
3 Months active
Languages Used
CJavaC++
Technical Skills
C programmingJavabackend developmenterror handlingtest-driven developmentLLVM
Tobias Weiss
PROFILE
Tobias Weiss
Contributed to the OpenVADL/openvadl repository by delivering targeted improvements in compiler infrastructure and test architecture over a three-month period. Focused on backend development using Java, C, and C++, this work included reorganizing floating-point test suites for clearer separation and maintainability, enhancing error handling in diagnostic utilities, and stabilizing xaarch64 code generation by harmonizing type widths and removing hardcoded intrinsics. Addressed critical bugs in the LLVM backend, such as correcting conditional move instruction labeling and expanding 32-bit coverage. Emphasized test-driven development and robust error handling, resulting in improved code quality, maintainability, and cross-architecture reliability throughout the project.
Overall Statistics
Feature vs Bugs
25%Features
Repository Contributions
4Total
Bugs
3
Commits
4
Features
1
Lines of code
5,011
Activity Months3
Your Network
24 peopleShared Repositories
24
Andreas KrallMember
Benedikt HuberMember
Giftzwerg02Member
Matthias RaschhoferMember
Alexander RiparMember
kevinMember
Benjamin KasperMember
tmagesMember
Tobias WeissMember
Work History
May 2026
1 Commits
May 1, 2026May 2026 - OpenVADL/openvadl: Focused on LLVM backend conditional move (CSEL) reliability. Delivered mislabeling fix and enhancements for 32-bit CSEL, expanding coverage with MachineInstructionLabels for CSEL_<cond> variants and correcting 32-bit CSEL_NEQ labeling. Commit: 0bf467b4afd8a45d44173f3cf56063cfb04f33f5 (lcb: Implement more conditional move variations, #964), co-authored by Tobias Weiss. Result: improved instruction selection correctness, expanded 32-bit coverage, reduced risk of incorrect codegen in the critical path.
1 Commits
May 1, 2026May 2026 - OpenVADL/openvadl: Focused on LLVM backend conditional move (CSEL) reliability. Delivered mislabeling fix and enhancements for 32-bit CSEL, expanding coverage with MachineInstructionLabels for CSEL_<cond> variants and correcting 32-bit CSEL_NEQ labeling. Commit: 0bf467b4afd8a45d44173f3cf56063cfb04f33f5 (lcb: Implement more conditional move variations, #964), co-authored by Tobias Weiss. Result: improved instruction selection correctness, expanded 32-bit coverage, reduced risk of incorrect codegen in the critical path.
May 2026
April 2026
1 Commits
Apr 1, 2026April 2026 monthly summary for OpenVADL/openvadl focused on stabilizing xaarch64 code generation and harmonizing type widths to improve portability and correctness across architectures. Delivered targeted fixes to ensure compilability, align immediates to the smallest register bitwidth, and remove hardcoded return types for intrinsics, reducing cross-arch discrepancies and maintenance burden.
April 2026
1 Commits
Apr 1, 2026April 2026 monthly summary for OpenVADL/openvadl focused on stabilizing xaarch64 code generation and harmonizing type widths to improve portability and correctness across architectures. Delivered targeted fixes to ensure compilability, align immediates to the smallest register bitwidth, and remove hardcoded return types for intrinsics, reducing cross-arch discrepancies and maintenance burden.
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for OpenVADL/openvadl: Delivered key test-architecture improvements and more robust diagnostics, contributing to faster feedback and higher maintainability. The Floating-point Test Suite Reorganization establishes a dedicated FP subdirectory, improving test discovery, maintainability, and reducing FP-related noise in CI. The Improved DiagnosticPrinter error handling enhances debuggability by widening exception handling and refining error previews based on available source location. These changes streamline CI, reduce debugging time, and reinforce code quality for long-term maintainability.
2 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for OpenVADL/openvadl: Delivered key test-architecture improvements and more robust diagnostics, contributing to faster feedback and higher maintainability. The Floating-point Test Suite Reorganization establishes a dedicated FP subdirectory, improving test discovery, maintainability, and reducing FP-related noise in CI. The Improved DiagnosticPrinter error handling enhances debuggability by widening exception handling and refining error previews based on available source location. These changes streamline CI, reduce debugging time, and reinforce code quality for long-term maintainability.
March 2026
Activity
Loading activity data...
Quality Metrics
Correctness95.0%
Maintainability85.0%
Architecture95.0%
Performance85.0%
AI Usage30.0%
Skills & Technologies
Programming Languages
CC++Java
Technical Skills
C programmingC++ programmingJavaJava programmingLLVMbackend developmentcompiler designcompiler developmenterror handlingtest-driven development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline