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Gracefully handle normalization failures in the prospective inliner cycle detector
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@ -45,7 +45,10 @@ crate fn mir_callgraph_reachable<'tcx>(
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) -> bool {
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trace!(%caller);
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for &(callee, substs) in tcx.mir_inliner_callees(caller.def) {
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let substs = caller.subst_mir_and_normalize_erasing_regions(tcx, param_env, substs);
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let Ok(substs) = caller.try_subst_mir_and_normalize_erasing_regions(tcx, param_env, substs) else {
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trace!(?caller, ?param_env, ?substs, "cannot normalize, skipping");
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continue;
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};
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let Some(callee) = ty::Instance::resolve(tcx, param_env, callee, substs).unwrap() else {
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trace!(?callee, "cannot resolve, skipping");
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continue;
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