bjoernager/rust
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Also InstSimplify &raw*

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We do this for `&*` and `&mut*` already; might as well do it for raw pointers too.
This commit is contained in:
Scott McMurray 2024-05-30 22:05:30 -07:00
parent 366da30d55
commit 4b96e44ebb
4 changed files with 157 additions and 1 deletions
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2
compiler/rustc_mir_transform/src/instsimplify.rs
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@ -123,7 +123,7 @@ impl<'tcx> InstSimplifyContext<'tcx, '_> {
/// Transform `&(*a)` ==> `a`.
fn simplify_ref_deref(&self, source_info: &SourceInfo, rvalue: &mut Rvalue<'tcx>) {
if let Rvalue::Ref(_, _, place) = rvalue {
if let Rvalue::Ref(_, _, place) | Rvalue::AddressOf(_, place) = rvalue {
if let Some((base, ProjectionElem::Deref)) = place.as_ref().last_projection() {
if rvalue.ty(self.local_decls, self.tcx) != base.ty(self.local_decls, self.tcx).ty {
return;