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Add a note about checks with multiple revisions (#1963)

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Trevor Gross 2024-04-13 11:16:44 -04:00 committed by GitHub
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src/tests/compiletest.md
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@ -593,8 +593,7 @@ You can therefore use `#[cfg(foo)]` etc within the test to tweak
each of these results. each of these results.
You can also customize headers and expected error messages to a particular You can also customize headers and expected error messages to a particular
revision. To do this, add `[foo]` (or `bar`, `baz`, etc) after the `//` revision. To do this, add `[revision-name]` after the `//` comment, like so:
comment, like so:
```rust,ignore ```rust,ignore
// A flag to pass in only for cfg `foo`: // A flag to pass in only for cfg `foo`:
@ -606,6 +605,9 @@ fn test_foo() {
} }
``` ```
Multiple revisions can be specified in a comma-separated list, such as
`//[foo,bar,baz]~^`.
In test suites that use the LLVM [FileCheck] tool, the current revision name is In test suites that use the LLVM [FileCheck] tool, the current revision name is
also registered as an additional prefix for FileCheck directives: also registered as an additional prefix for FileCheck directives: