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Conditionally call normalize_erasing_regions only if polymorhization is enabled

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jackh726 2021-07-13 15:09:01 -04:00
parent a9f1e1c440
commit 09978bdcd1
1 changed files with 2 additions and 1 deletions
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3
compiler/rustc_middle/src/ty/layout.rs
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@ -2478,9 +2478,10 @@ impl<'tcx> ty::Instance<'tcx> {
// `src/test/ui/polymorphization/normalized_sig_types.rs`), and codegen not keeping // `src/test/ui/polymorphization/normalized_sig_types.rs`), and codegen not keeping
// track of a polymorphization `ParamEnv` to allow normalizing later. // track of a polymorphization `ParamEnv` to allow normalizing later.
let mut sig = match *ty.kind() { let mut sig = match *ty.kind() {
ty::FnDef(def_id, substs) => tcx ty::FnDef(def_id, substs) if tcx.sess.opts.debugging_opts.polymorphize => tcx
.normalize_erasing_regions(tcx.param_env(def_id), tcx.fn_sig(def_id)) .normalize_erasing_regions(tcx.param_env(def_id), tcx.fn_sig(def_id))
.subst(tcx, substs), .subst(tcx, substs),
ty::FnDef(def_id, substs) => tcx.fn_sig(def_id).subst(tcx, substs),
_ => unreachable!(), _ => unreachable!(),
}; };