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Elide storage markers when elaborating box derefs

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This commit is contained in:
Tomasz Miąsko 2022-07-30 00:00:00 +00:00
parent 38528d4dc0
commit 943a380b37
1 changed files with 1 additions and 8 deletions
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9
compiler/rustc_mir_transform/src/elaborate_box_derefs.rs
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@ -69,9 +69,7 @@ impl<'tcx, 'a> MutVisitor<'tcx> for ElaborateBoxDerefVisitor<'tcx, 'a> {
let (unique_ty, nonnull_ty, ptr_ty) =
build_ptr_tys(tcx, base_ty.boxed_ty(), self.unique_did, self.nonnull_did);
let ptr_local = self.patch.new_temp(ptr_ty, source_info.span);
self.patch.add_statement(location, StatementKind::StorageLive(ptr_local));
let ptr_local = self.patch.new_internal(ptr_ty, source_info.span);
self.patch.add_assign(
location,
@ -83,11 +81,6 @@ impl<'tcx, 'a> MutVisitor<'tcx> for ElaborateBoxDerefVisitor<'tcx, 'a> {
);
place.local = ptr_local;
self.patch.add_statement(
Location { block: location.block, statement_index: location.statement_index + 1 },
StatementKind::StorageDead(ptr_local),
);
}
self.super_place(place, context, location);