A strong testing infrastructure is critical for compilers to maintain a high quality of correctness and performance. This tutorial will cover the various elements of the LLVM testing infrastructure. The focus will be to for newcomers to learn to write and run the unit, regression and whole program tests in the LLVM infrastructure as well as the integration of external suites into the LLVM test suite. We will additionally cover the various frameworks and tools used within the test suites, including using LNT to track performance data.
