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Verilator coverage testing #178

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jbush001 opened this issue Feb 15, 2019 · 1 comment

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test

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jbush001 commented Feb 15, 2019 •

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Collect coverage information at end of tests.

https://www.veripool.org/projects/verilator/wiki/Manual-verilator

Pass --coverage option to verilator in makefile
Modify c++ test harness to VerilatedCov::write into an output file. There will be one file per test, which should be collected somewhere (this probably needs to be done by test_harness.py)
Run verilator_coverage executable, passing paths of all output files, which it will consolidate.

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jbush001 commented Feb 18, 2019

It takes a very long time to compile the full processor model with this enabled, which may be prohibitive. This may still be useful for unit tests.

jbush001 added the test label

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