diff options
| author | Eric Fiselier <eric@efcs.ca> | 2018-12-14 21:11:28 +0000 |
|---|---|---|
| committer | Eric Fiselier <eric@efcs.ca> | 2018-12-14 21:11:28 +0000 |
| commit | 5e6ad21ed04379e510f72b14b9325a3ebf27a9a6 (patch) | |
| tree | bdfd8d51152afa5b20113e9736c118f49bd673f6 /include/clang/Basic/DiagnosticSemaKinds.td | |
| parent | e98c891a878808bd78a7947557e53b035d2336d8 (diff) | |
[Clang] Add __builtin_launder
Summary:
This patch adds `__builtin_launder`, which is required to implement `std::launder`. Additionally GCC provides `__builtin_launder`, so thing brings Clang in-line with GCC.
I'm not exactly sure what magic `__builtin_launder` requires, but based on previous discussions this patch applies a `@llvm.invariant.group.barrier`. As noted in previous discussions, this may not be enough to correctly handle vtables.
Reviewers: rnk, majnemer, rsmith
Reviewed By: rsmith
Subscribers: kristina, Romain-Geissler-1A, erichkeane, amharc, jroelofs, cfe-commits, Prazek
Differential Revision: https://reviews.llvm.org/D40218
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@349195 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Basic/DiagnosticSemaKinds.td')
| -rw-r--r-- | include/clang/Basic/DiagnosticSemaKinds.td | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/clang/Basic/DiagnosticSemaKinds.td b/include/clang/Basic/DiagnosticSemaKinds.td index c11b6db488..2e84f5fedf 100644 --- a/include/clang/Basic/DiagnosticSemaKinds.td +++ b/include/clang/Basic/DiagnosticSemaKinds.td @@ -9475,4 +9475,8 @@ def warn_noderef_on_non_pointer_or_array : Warning< def warn_noderef_to_dereferenceable_pointer : Warning< "casting to dereferenceable pointer removes 'noderef' attribute">, InGroup<NoDeref>; +def err_builtin_launder_invalid_arg : Error< + "%select{non-pointer|function pointer|void pointer}0 argument to " + "'__builtin_launder' is not allowed">; + } // end of sema component. |