
During April 2025, Sam Herbst enhanced Verilog parsing in the xlsynth/bedrock-rtl repository, focusing on both speed and build stability. He optimized the load_module function in Rust to filter input sources, ensuring only top-level, package, and multi-definition files were parsed, which reduced unnecessary processing. Sam also updated build tooling by configuring the slang parser to run single-threaded and upgrading TopStitch, addressing thread contention issues in parallel Bazel builds. These changes improved parsing performance and reliability for large SystemVerilog projects, demonstrating depth in build system configuration, code optimization, and dependency management while enabling faster and more dependable development cycles.

Month 2025-04 — Key Verilog parsing improvements in xlsynth/bedrock-rtl: speed and stability enhancements that support faster iteration on RTL code and more reliable builds. Implemented input-source filtering in load_module to parse only top-level, package, and multi-definition sources, and updated build/tooling: TopStitch 0.57.0 and single-threaded slang parser to reduce thread contention in parallel Bazel builds and improve handling of Verilog sources.
Month 2025-04 — Key Verilog parsing improvements in xlsynth/bedrock-rtl: speed and stability enhancements that support faster iteration on RTL code and more reliable builds. Implemented input-source filtering in load_module to parse only top-level, package, and multi-definition sources, and updated build/tooling: TopStitch 0.57.0 and single-threaded slang parser to reduce thread contention in parallel Bazel builds and improve handling of Verilog sources.
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