bjoernager/rust
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don't inline polymorphic adt instances whose fields contain projections

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in DropGlue.
This commit is contained in:
b-naber 2023-05-04 21:03:57 +00:00
parent 7871bec7aa
commit e7a2f52ba1
2 changed files with 29 additions and 9 deletions
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11
compiler/rustc_mir_dataflow/src/elaborate_drops.rs
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@ -272,15 +272,10 @@ where
let field = FieldIdx::new(i);
let subpath = self.elaborator.field_subpath(variant_path, field);
let tcx = self.tcx();
assert_eq!(self.elaborator.param_env().reveal(), Reveal::All);
let fty = f.ty(tcx, substs);
let field_ty = match tcx
.try_normalize_erasing_regions(self.elaborator.param_env(), f.ty(tcx, substs))
{
Ok(f_ty) => f_ty,
Err(_) => fty,
};
assert_eq!(self.elaborator.param_env().reveal(), Reveal::All);
let field_ty =
tcx.normalize_erasing_regions(self.elaborator.param_env(), f.ty(tcx, substs));
(tcx.mk_place_field(base_place, field, field_ty), subpath)
})