diff options
| author | Rémy Rakic <remy.rakic+github@gmail.com> | 2023-07-03 20:24:29 +0000 |
|---|---|---|
| committer | Tshepang Mbambo <tshepang@gmail.com> | 2023-07-05 02:14:36 +0200 |
| commit | 4b5b3591a2c5d48b59fab94b0e1178ff348c8bcd (patch) | |
| tree | 0cc56f73e48fb424e1eae71e23b0c9e699a75162 /src/doc/rustc-dev-guide | |
| parent | 0aa1b465cfad40e624721554bc4af239a8c7ff4b (diff) | |
| download | rust-4b5b3591a2c5d48b59fab94b0e1178ff348c8bcd.tar.gz rust-4b5b3591a2c5d48b59fab94b0e1178ff348c8bcd.zip | |
document `.x test --rustc-args` option
Diffstat (limited to 'src/doc/rustc-dev-guide')
| -rw-r--r-- | src/doc/rustc-dev-guide/src/tests/running.md | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/doc/rustc-dev-guide/src/tests/running.md b/src/doc/rustc-dev-guide/src/tests/running.md index 6bc794ca917..71fb82b68b1 100644 --- a/src/doc/rustc-dev-guide/src/tests/running.md +++ b/src/doc/rustc-dev-guide/src/tests/running.md @@ -133,6 +133,15 @@ Under the hood, the test runner invokes the standard Rust test runner filtering for tests that include "issue-1234" in the name. (Thus `--test-args` is a good way to run a collection of related tests.) +## Passing arguments to `rustc` when running tests + +It can sometimes be useful to run some tests with specific compiler arguments, +without using `RUSTFLAGS` (during development of unstable features, with `-Z` +flags, for example). + +This can be done with `./x test`'s `--rustc-args` option, to pass additional +arguments to the compiler when building the tests. + ## Editing and updating the reference files If you have changed the compiler's output intentionally, or you are |