Fix mistake in comment regarding dyn_cast_or_null

[ofri-frishman]

There was a mistake in a comment regarding dyn_cast_or_null deprication.
It was suggested to use cast_if_present instead of dyn_cast_or_null, but that was probably a copy paste mistake, and dyn_cast_if_present is the function that should be used instead of dyn_cast_or_null.

[github-actions]

Thank you for submitting a Pull Request (PR) to the LLVM Project!

This PR will be automatically labeled and the relevant teams will be notified.

If you wish to, you can add reviewers by using the "Reviewers" section on this page.

If this is not working for you, it is probably because you do not have write permissions for the repository. In which case you can instead tag reviewers by name in a comment by using @ followed by their GitHub username.

If you have received no comments on your PR for a week, you can request a review by "ping"ing the PR by adding a comment “Ping”. The common courtesy "ping" rate is once a week. Please remember that you are asking for valuable time from other developers.

If you have further questions, they may be answered by the LLVM GitHub User Guide.

You can also ask questions in a comment on this PR, on the LLVM Discord or on the forums.

[llvmbot]

@llvm/pr-subscribers-llvm-support

Author: ofri frishman (ofri-frishman)

Changes

There was a mistake in a comment regarding dyn_cast_or_null deprication.
It was suggested to use cast_if_present instead of dyn_cast_or_null, but that was probably a copy paste mistake, and dyn_cast_if_present is the function that should be used instead of dyn_cast_or_null.

---

Full diff: https://github.com/llvm/llvm-project/pull/108026.diff

1 Files Affected:

• (modified) llvm/include/llvm/Support/Casting.h (+1-1)

diff --git a/llvm/include/llvm/Support/Casting.h b/llvm/include/llvm/Support/Casting.h
index 14a32ccd0e0dc9..66fdcb44ea2c00 100644
--- a/llvm/include/llvm/Support/Casting.h
+++ b/llvm/include/llvm/Support/Casting.h
@@ -755,7 +755,7 @@ template <class X, class Y> auto dyn_cast_if_present(Y *Val) {
 
 // Forwards to dyn_cast_if_present to avoid breaking current users. This is
 // deprecated and will be removed in a future patch, use
-// cast_if_present instead.
+// dyn_cast_if_present instead.
 template <class X, class Y> auto dyn_cast_or_null(const Y &Val) {
   return dyn_cast_if_present<X>(Val);
 }

[ofri-frishman]

@bzcheeseman

[bzcheeseman]

Thanks for fixing that :)

[ofri-frishman]

@bzcheeseman can you land this for me? I don't yet have write permissions

[github-actions]

@ofri-frishman Congratulations on having your first Pull Request (PR) merged into the LLVM Project!

Your changes will be combined with recent changes from other authors, then tested by our build bots. If there is a problem with a build, you may receive a report in an email or a comment on this PR.

Please check whether problems have been caused by your change specifically, as the builds can include changes from many authors. It is not uncommon for your change to be included in a build that fails due to someone else's changes, or infrastructure issues.

How to do this, and the rest of the post-merge process, is covered in detail here.

If your change does cause a problem, it may be reverted, or you can revert it yourself. This is a normal part of LLVM development. You can fix your changes and open a new PR to merge them again.

If you don't get any reports, no action is required from you. Your changes are working as expected, well done!