rustc-dev-guide: document //@ ignore-auxiliary
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@ -175,6 +175,8 @@ See [compiletest directives] for a listing of directives.
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- For `ignore-*`/`needs-*`/`only-*` directives, unless extremely obvious,
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- For `ignore-*`/`needs-*`/`only-*` directives, unless extremely obvious,
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provide a brief remark on why the directive is needed. E.g. `"//@ ignore-wasi
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provide a brief remark on why the directive is needed. E.g. `"//@ ignore-wasi
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(wasi codegens the main symbol differently)"`.
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(wasi codegens the main symbol differently)"`.
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- When using `//@ ignore-auxiliary`, specify the corresponding main test files,
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e.g. ``//@ ignore-auxiliary (used by `./foo.rs`)``.
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## FileCheck best practices
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## FileCheck best practices
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@ -124,6 +124,9 @@ means the test won't be compiled or run.
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* `ignore-X` where `X` is a target detail or other criteria on which to ignore the test (see below)
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* `ignore-X` where `X` is a target detail or other criteria on which to ignore the test (see below)
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* `only-X` is like `ignore-X`, but will *only* run the test on that target or
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* `only-X` is like `ignore-X`, but will *only* run the test on that target or
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stage
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stage
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* `ignore-auxiliary` is intended for files that *participate* in one or more other
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main test files but that `compiletest` should not try to build the file itself.
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Please backlink to which main test is actually using the auxiliary file.
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* `ignore-test` always ignores the test. This can be used to temporarily disable
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* `ignore-test` always ignores the test. This can be used to temporarily disable
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a test if it is currently not working, but you want to keep it in tree to
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a test if it is currently not working, but you want to keep it in tree to
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re-enable it later.
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re-enable it later.
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