Rust Compiler Coverage Diff Prototype

Goal

Compare coverage across test groups and identify where coverage is lacking.

What it does

• Runs coverage on two test sets
• Merges coverage data
• Compares results
• Suggests areas where tests are missing

How to run

1. ./run_coverage.sh
2. ./merge_profiles.sh
3. ./export_coverage.sh
4. python3 coverage_diff.py
5. python3 prioritize.py

Output

Top uncovered compiler areas and suggested test focus