diff options
Diffstat (limited to 'compiler/rustc_borrowck/src/lib.rs')
| -rw-r--r-- | compiler/rustc_borrowck/src/lib.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_borrowck/src/lib.rs b/compiler/rustc_borrowck/src/lib.rs index d258c68b959..9ad941dabbe 100644 --- a/compiler/rustc_borrowck/src/lib.rs +++ b/compiler/rustc_borrowck/src/lib.rs @@ -821,6 +821,8 @@ impl<'a, 'mir, 'tcx, R> rustc_mir_dataflow::ResultsVisitor<'mir, 'tcx, R> | TerminatorKind::Return | TerminatorKind::TailCall { .. } | TerminatorKind::CoroutineDrop => { + // Returning from the function implicitly kills storage for all locals and statics. + // Often, the storage will already have been killed by an explicit // StorageDead, but we don't always emit those (notably on unwind paths), // so this "extra check" serves as a kind of backup. let borrow_set = self.borrow_set.clone(); |