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Mention skip in README.

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Camille GILLOT 2023-10-16 20:17:45 +00:00
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tests/mir-opt/README.md
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@ -56,6 +56,8 @@ The LLVM FileCheck tool is used to verify the contents of output MIR against `CH
present in the test file. This works on the runtime MIR, generated by `--emit=mir`, and not
on the output of a individual passes.
Use `// skip-filecheck` to prevent FileCheck from running.
To check MIR for function `foo`, start with a `// CHECK-LABEL fn foo(` directive.
`{{regex}}` syntax allows to match `regex`.