const-eval interner: from-scratch rewrite using mutability information from provenance rather than types

2023-12-16 16:24:25 +01:00
parent a58ec8ff03
commit 2f1a8e2d7a
52 changed files with 1093 additions and 688 deletions
--- a/compiler/rustc_const_eval/src/const_eval/machine.rs
+++ b/compiler/rustc_const_eval/src/const_eval/machine.rs
@@ -723,7 +723,7 @@ impl<'mir, 'tcx> interpret::Machine<'mir, 'tcx> for CompileTimeInterpreter<'mir,
            && ty.is_freeze(*ecx.tcx, ecx.param_env)
        {
            let place = ecx.ref_to_mplace(val)?;
-            let new_place = place.map_provenance(|p| p.map(CtfeProvenance::as_immutable));
+            let new_place = place.map_provenance(CtfeProvenance::as_immutable);
            Ok(ImmTy::from_immediate(new_place.to_ref(ecx), val.layout))
        } else {
            Ok(val.clone())