bjoernager/rust
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simplify more, ret_deref -> has_deref

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ouz-a 2022-05-16 16:23:42 +03:00
parent c0e4230bf5
commit c3e1e7a947
3 changed files with 9 additions and 11 deletions
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5
compiler/rustc_mir_transform/src/add_retag.rs
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@ -15,7 +15,7 @@ pub struct AddRetag;
/// (Concurrent accesses by other threads are no problem as these are anyway non-atomic
/// copies. Data races are UB.)
fn is_stable(place: PlaceRef<'_>) -> bool {
if place.ret_deref().is_some() {
if place.has_deref() {
// Which place this evaluates to can change with any memory write,
// so cannot assume deref to be stable.
return false;
@ -83,8 +83,7 @@ impl<'tcx> MirPass<'tcx> for AddRetag {
let place_base_raw = |place: &Place<'tcx>| {
// If this is a `Deref`, get the type of what we are deref'ing.
if place.ret_deref().is_some() {
let base_proj = &place.projection[..0];
let ty = Place::ty_from(place.local, base_proj, &*local_decls, tcx).ty;
let ty = place.ty(local_decls, tcx).ty;
ty.is_unsafe_ptr()
} else {
// Not a deref, and thus not raw.