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| author | 许杰友 Jieyou Xu (Joe) <39484203+jieyouxu@users.noreply.github.com> | 2024-10-30 21:11:37 +0800 |
|---|---|---|
| committer | Josh Stone <jistone@redhat.com> | 2024-11-01 11:15:23 -0700 |
| commit | b5bc13a36741c9a5199eada4baf331ff7bdfcc05 (patch) | |
| tree | 9905a4d989ab08f29b4880fa8eb1b084968b4495 /compiler | |
| parent | 90a1f5f7896f4ce0e21b40e52553dd5cc0fa6316 (diff) | |
| download | rust-b5bc13a36741c9a5199eada4baf331ff7bdfcc05.tar.gz rust-b5bc13a36741c9a5199eada4baf331ff7bdfcc05.zip | |
Mark `simplify_aggregate_to_copy` mir-opt as unsound
Co-authored-by: DianQK <dianqk@dianqk.net> (cherry picked from commit 10b8ba4ecb19ac2eb7be97a1a1eb1ffae9fec534)
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 daf868559bc..de53ebfcd0e 100644 --- a/compiler/rustc_mir_transform/src/gvn.rs +++ b/compiler/rustc_mir_transform/src/gvn.rs @@ -1079,7 +1079,9 @@ 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) { |