run-llvm-tests

name	run-llvm-tests
description	Builds and runs LLVM/MLIR/Clang tests. Use when you need to verify changes to the LLVM project by running relevant test suites.

Run Tests (LLVM)

Build all the required targets and run tests.

Steps

1. Find the build directory and cd to it

• This will usually be WORKSPACE_ROOT/build

2. Identify the relevant subproject to test

• Explore the codebase looking for relevant tests
• For mlir, run ninja check-mlir
  • For more specific components, append the component path test target, e.g.,: ninja check-mlir-dialect-spirv
• For LLVM, run ninja check-llvm
  • For more specific components, use the LIT_FILTERenvironment variable with env, e.g.: env LIT_FILTER=AMDGPU ninja check-llvm

3. Make sure that all test targets are actually built -- use ninja.

4. Summarize results

• How many tests were discovered. If none, the test invocation was most likely wrong.
• How many passed / failed / were disabled

5. Analyze failures (if any)
   • Categorize by type: pre-existing / unrelated, new failures
   • Generate a repro command that runs the failing tests only