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Check for free regions in MIR validation

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This commit is contained in:
Ben Kimock 2023-03-05 13:20:17 -05:00
parent bb1838847d
commit cb4ebc1453
2 changed files with 11 additions and 6 deletions
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11
compiler/rustc_const_eval/src/transform/validate.rs
View File

@ -72,6 +72,17 @@ impl<'tcx> MirPass<'tcx> for Validator {
};
checker.visit_body(body);
checker.check_cleanup_control_flow();
if let MirPhase::Runtime(_) = body.phase {
if let ty::InstanceDef::Item(_) = body.source.instance {
if body.has_free_regions() {
checker.fail(
Location::START,
format!("Free regions in optimized {} MIR", body.phase.name()),
);
}
}
}
}
}

6
compiler/rustc_mir_transform/src/lib.rs
View File

@ -416,8 +416,6 @@ fn inner_mir_for_ctfe(tcx: TyCtxt<'_>, def: ty::WithOptConstParam<LocalDefId>) -
pm::run_passes(tcx, &mut body, &[&ctfe_limit::CtfeLimit], None);
debug_assert!(!body.has_free_regions(), "Free regions in MIR for CTFE");
body
}
@ -626,8 +624,6 @@ fn inner_optimized_mir(tcx: TyCtxt<'_>, did: LocalDefId) -> Body<'_> {
debug!("body: {:#?}", body);
run_optimization_passes(tcx, &mut body);
debug_assert!(!body.has_free_regions(), "Free regions in optimized MIR");
body
}
@ -651,7 +647,5 @@ fn promoted_mir(
run_analysis_to_runtime_passes(tcx, body);
}
debug_assert!(!promoted.has_free_regions(), "Free regions in promoted MIR");
tcx.arena.alloc(promoted)
}