bjoernager/rust
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Simplify visit_place.

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This commit is contained in:
Camille GILLOT 2023-07-01 09:41:06 +00:00
parent 6d7304167c
commit b4c342edea
1 changed files with 13 additions and 14 deletions
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27
compiler/rustc_mir_transform/src/ref_prop.rs
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@ -374,23 +374,22 @@ impl<'tcx> MutVisitor<'tcx> for Replacer<'tcx> {
} }
fn visit_place(&mut self, place: &mut Place<'tcx>, ctxt: PlaceContext, loc: Location) { fn visit_place(&mut self, place: &mut Place<'tcx>, ctxt: PlaceContext, loc: Location) {
if place.projection.first() != Some(&PlaceElem::Deref) {
return;
}
loop { loop {
if let Value::Pointer(target, _) = self.targets[place.local] { if place.projection.first() != Some(&PlaceElem::Deref) {
let perform_opt = matches!(ctxt, PlaceContext::NonUse(_)) return;
|| self.allowed_replacements.contains(&(target.local, loc));
if perform_opt {
*place = target.project_deeper(&place.projection[1..], self.tcx);
self.any_replacement = true;
continue;
}
} }
break; let Value::Pointer(target, _) = self.targets[place.local] else { return };
let perform_opt = matches!(ctxt, PlaceContext::NonUse(_))
|| self.allowed_replacements.contains(&(target.local, loc));
if !perform_opt {
return;
}
*place = target.project_deeper(&place.projection[1..], self.tcx);
self.any_replacement = true;
} }
} }