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Deduplicate tcx.instance_mir(instance) calls in try_instance_mir

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This commit is contained in:
zetanumbers 2024-02-08 15:42:41 +03:00
parent af88f7db51
commit da4ec6ffa7
1 changed files with 10 additions and 15 deletions
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25
compiler/rustc_mir_transform/src/inline.rs
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@ -1027,21 +1027,16 @@ fn try_instance_mir<'tcx>(
tcx: TyCtxt<'tcx>, tcx: TyCtxt<'tcx>,
instance: InstanceDef<'tcx>, instance: InstanceDef<'tcx>,
) -> Result<&'tcx Body<'tcx>, &'static str> { ) -> Result<&'tcx Body<'tcx>, &'static str> {
match instance { if let ty::InstanceDef::DropGlue(_, Some(ty)) = instance
ty::InstanceDef::DropGlue(_, Some(ty)) => match ty.kind() { && let ty::Adt(def, args) = ty.kind()
ty::Adt(def, args) => { {
let fields = def.all_fields(); let fields = def.all_fields();
for field in fields { for field in fields {
let field_ty = field.ty(tcx, args); let field_ty = field.ty(tcx, args);
if field_ty.has_param() && field_ty.has_projections() { if field_ty.has_param() && field_ty.has_projections() {
return Err("cannot build drop shim for polymorphic type"); return Err("cannot build drop shim for polymorphic type");
}
}
Ok(tcx.instance_mir(instance))
} }
_ => Ok(tcx.instance_mir(instance)), }
},
_ => Ok(tcx.instance_mir(instance)),
} }
Ok(tcx.instance_mir(instance))
} }