
Developed code coverage mapping support for the emscripten-core/emscripten repository by integrating LLVM’s compiler-rt profiling library and enabling source-based code coverage for C and C++ projects. The work involved implementing mechanisms to collect and manage profile data, activating -fprofile-instr-generate and -fcoverage-mapping flags to facilitate detailed coverage analysis. This addition established a data-driven foundation for testing and performance optimization across the toolchain. Leveraging expertise in compiler development, code coverage, and runtime libraries, the developer delivered a robust feature that enhances the ability to analyze and improve code quality within the emscripten ecosystem, focusing on actionable coverage insights.
June 2025: Delivered Code Coverage Mapping Support for emscripten by integrating the LLVM compiler-rt profiling library. Implemented source-based code coverage with new C/C++ sources to collect and manage profile data, and enabled -fprofile-instr-generate and -fcoverage-mapping for detailed coverage analysis. This establishes an actionable, data-driven basis for testing and performance optimization across the toolchain.
June 2025: Delivered Code Coverage Mapping Support for emscripten by integrating the LLVM compiler-rt profiling library. Implemented source-based code coverage with new C/C++ sources to collect and manage profile data, and enabled -fprofile-instr-generate and -fcoverage-mapping for detailed coverage analysis. This establishes an actionable, data-driven basis for testing and performance optimization across the toolchain.

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