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Delete unused polymorphization code

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This commit is contained in:
Nilstrieb 2022-12-01 22:00:19 +01:00
parent 2855794257
commit a4b859e35f
1 changed files with 1 additions and 46 deletions
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47
compiler/rustc_monomorphize/src/polymorphize.rs
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@ -340,55 +340,10 @@ impl<'a, 'tcx> TypeVisitor<'tcx> for MarkUsedGenericParams<'a, 'tcx> {
}
ty::Param(param) => {
debug!(?param);
self.unused_parameters.clear(param.index);
self.unused_parameters.mark_used(param.index);
ControlFlow::CONTINUE
}
_ => ty.super_visit_with(self),
}
}
}
/// Visitor used to check if a generic parameter is used.
struct HasUsedGenericParams<'a> {
unused_parameters: &'a FiniteBitSet<u32>,
}
impl<'a, 'tcx> TypeVisitor<'tcx> for HasUsedGenericParams<'a> {
type BreakTy = ();
#[instrument(level = "debug", skip(self))]
fn visit_const(&mut self, c: Const<'tcx>) -> ControlFlow<Self::BreakTy> {
if !c.has_non_region_param() {
return ControlFlow::CONTINUE;
}
match c.kind() {
ty::ConstKind::Param(param) => {
if self.unused_parameters.contains(param.index).unwrap_or(false) {
ControlFlow::CONTINUE
} else {
ControlFlow::BREAK
}
}
_ => c.super_visit_with(self),
}
}
#[instrument(level = "debug", skip(self))]
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<Self::BreakTy> {
if !ty.has_non_region_param() {
return ControlFlow::CONTINUE;
}
match ty.kind() {
ty::Param(param) => {
if self.unused_parameters.contains(param.index).unwrap_or(false) {
ControlFlow::CONTINUE
} else {
ControlFlow::BREAK
}
}
_ => ty.super_visit_with(self),
}
}
}