diff options
| -rw-r--r-- | compiler/rustc_hir_analysis/src/lib.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_hir_analysis/src/lib.rs b/compiler/rustc_hir_analysis/src/lib.rs index 4f95174f869..b0f333b79ca 100644 --- a/compiler/rustc_hir_analysis/src/lib.rs +++ b/compiler/rustc_hir_analysis/src/lib.rs @@ -237,6 +237,10 @@ pub fn check_crate(tcx: TyCtxt<'_>) -> Result<(), ErrorGuaranteed> { tcx.hir().for_each_module(|module| tcx.ensure().check_mod_item_types(module)) }); + // Freeze definitions as we don't add new ones at this point. This improves performance by + // allowing lock-free access to them. + tcx.untracked().definitions.freeze(); + // FIXME: Remove this when we implement creating `DefId`s // for anon constants during their parents' typeck. // Typeck all body owners in parallel will produce queries |