opp-repl-coverage-reports

To generate C++ coverage reports for opp_repl simulation runs, use the open_coverage_report command on a chosen project. This builds the project in coverage mode, executes the simulation, and produces an HTML report for inspecting executed code paths.

Yes, producing HTML coverage reports requires LLVM tools, specifically llvm-profdata and llvm-cov. These tools process the raw profiling data generated during coverage builds and convert it into a viewable HTML format.

The best way to identify untested code paths is to generate project-wide coverage data across representative configurations. Analyzing the resulting HTML coverage report reveals which C++ simulation source lines remain unexecuted, guiding test improvements.

Yes, you can analyze coverage data for a single simulation run. The tool supports both per-run and project-wide sweeps, allowing you to determine which parts of a specific simulation example exercise the code before scaling to broader configurations.

Building in coverage mode instruments the C++ source code to track execution during the simulation run. This instrumentation is necessary to generate the raw profiling data that LLVM tools later parse into an HTML coverage report.

Use project-wide coverage sweeps across representative configurations when you need a comprehensive view of untested code paths across the entire project. Use per-run reports when focusing on how a specific simulation example exercises the code.