diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_mir_transform/src/gvn.rs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs index 8a646d8cbfe..274eea9563f 100644 --- a/compiler/rustc_mir_transform/src/gvn.rs +++ b/compiler/rustc_mir_transform/src/gvn.rs @@ -1082,7 +1082,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { } } - if let AggregateTy::Def(_, _) = ty + // unsound: https://github.com/rust-lang/rust/issues/132353 + if tcx.sess.opts.unstable_opts.unsound_mir_opts + && let AggregateTy::Def(_, _) = ty && let Some(value) = self.simplify_aggregate_to_copy(rvalue, location, &fields, variant_index) { |