llvm/circt
Oct 2025 – Jan 2026
3 Months active
Languages Used
C++MLIRSystemVerilogVerilog
Technical Skills
Compiler DevelopmentDialect DesignHardware Description LanguagesLLVM IRLow-Level ProgrammingType Conversion
Moritz Scherer
PROFILE
Moritz Scherer
Over a three-month period, contributed to the llvm/circt repository by developing advanced features for hardware description language tooling. Focused on enhancing the Moore dialect and ImportVerilog, this work introduced comprehensive real-number operations, robust class handling, and virtual dispatch table infrastructure using C++ and MLIR. Improvements included real-to-integer formatting, static member support, and queue modeling, all aligned with SystemVerilog and IEEE 1800-2023 standards. The technical approach emphasized stability, correctness, and extensibility, with extensive regression testing and careful refactoring to reduce crashes and improve code generation reliability for hardware import and verification workflows in complex compiler environments.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
18Total
Bugs
0
Commits
18
Features
6
Lines of code
2,329
Activity Months3
Your Network
86 peopleWork History
January 2026
13 Commits • 3 Features
Jan 1, 2026January 2026 — Performance summary for llvm/circt: Achieved substantial stability and capability improvements in ImportVerilog, expanded Moore dialect queue modeling, and added SystemVerilog null handling in line with IEEE 1800-2023. These changes reduce crashes, improve correctness, and broaden modeling capabilities, delivering tangible business value in hardware import reliability and verification flexibility.
13 Commits • 3 Features
Jan 1, 2026January 2026 — Performance summary for llvm/circt: Achieved substantial stability and capability improvements in ImportVerilog, expanded Moore dialect queue modeling, and added SystemVerilog null handling in line with IEEE 1800-2023. These changes reduce crashes, improve correctness, and broaden modeling capabilities, delivering tangible business value in hardware import reliability and verification flexibility.
January 2026
November 2025
3 Commits • 2 Features
Nov 1, 2025Concise monthly summary for 2025-11 focusing on delivering robust Verilog import and virtual dispatch table infrastructure within Circt, highlighting business value, technical achievements, and skills demonstrated.
November 2025
3 Commits • 2 Features
Nov 1, 2025Concise monthly summary for 2025-11 focusing on delivering robust Verilog import and virtual dispatch table infrastructure within Circt, highlighting business value, technical achievements, and skills demonstrated.
October 2025
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Real-number support and formatting enhancements delivered for llvm/circt. Implemented comprehensive real-valued ops (f32/f64) in Moore dialect and ImportVerilog, including arithmetic, comparisons, unary negation, and inc/dec; refactored operator lowering for consistency and added extensive tests. Enhanced ImportVerilog's FormatStringParser to support real-to-integer conversion for formatting specifiers (e.g., %d, %h) by inserting RealToIntOp and computing necessary signed width per IEEE-754 standards, with targeted tests and regression safeguards.
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Real-number support and formatting enhancements delivered for llvm/circt. Implemented comprehensive real-valued ops (f32/f64) in Moore dialect and ImportVerilog, including arithmetic, comparisons, unary negation, and inc/dec; refactored operator lowering for consistency and added extensive tests. Enhanced ImportVerilog's FormatStringParser to support real-to-integer conversion for formatting specifiers (e.g., %d, %h) by inserting RealToIntOp and computing necessary signed width per IEEE-754 standards, with targeted tests and regression safeguards.
October 2025
Activity
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Quality Metrics
Correctness96.6%
Maintainability83.2%
Architecture88.8%
Performance83.2%
AI Usage23.4%
Skills & Technologies
Programming Languages
C++MLIRSystemVerilogVerilog
Technical Skills
AST manipulationC++C++ DevelopmentC++ developmentC++ programmingCompiler DesignCompiler DevelopmentCompiler designDialect DesignHardware Description LanguagesLLVM IRLow-Level ProgrammingMLIRSoftware TestingSoftware testing
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