bjoernager/rust
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Remove polymorphization

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This commit is contained in:
Ben Kimock 2024-12-04 21:03:12 -05:00
parent 8dc83770f7
commit 711c8cc690
92 changed files with 59 additions and 2643 deletions
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19
compiler/rustc_ty_utils/src/abi.rs
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@ -45,23 +45,8 @@ fn fn_sig_for_fn_abi<'tcx>(
let ty = instance.ty(tcx, typing_env);
match *ty.kind() {
ty::FnDef(def_id, args) => {
// HACK(davidtwco,eddyb): This is a workaround for polymorphization considering
// parameters unused if they show up in the signature, but not in the `mir::Body`
// (i.e. due to being inside a projection that got normalized, see
// `tests/ui/polymorphization/normalized_sig_types.rs`), and codegen not keeping
// track of a polymorphization `ParamEnv` to allow normalizing later.
//
// We normalize the `fn_sig` again after instantiating at a later point.
let mut sig = tcx.instantiate_bound_regions_with_erased(
tcx.fn_sig(def_id)
.map_bound(|fn_sig| {
tcx.normalize_erasing_regions(
ty::TypingEnv::non_body_analysis(tcx, def_id),
fn_sig,
)
})
.instantiate(tcx, args),
);
let mut sig = tcx
.instantiate_bound_regions_with_erased(tcx.fn_sig(def_id).instantiate(tcx, args));
if let ty::InstanceKind::VTableShim(..) = instance.def {
let mut inputs_and_output = sig.inputs_and_output.to_vec();