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authorbors <bors@rust-lang.org>2025-10-02 08:09:33 +0000
committerbors <bors@rust-lang.org>2025-10-02 08:09:33 +0000
commit4b9c62b4da3e17cee99d3d2052f1c576b188e2a8 (patch)
treeb8500d73a15205e55e5cbc3d59f397d2547de007 /compiler/rustc_ty_utils/src/ty.rs
parent42b384ec0dfcd528d99a4db0a337d9188a9eecaa (diff)
parentd1bbd39c59523d7a5499816a9da200a5910f8b7f (diff)
downloadrust-4b9c62b4da3e17cee99d3d2052f1c576b188e2a8.tar.gz
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Auto merge of #147138 - jackh726:split-canonical-bound, r=lcnr
Split Bound index into Canonical and Bound

See [#t-types/trait-system-refactor > perf &#96;async-closures/post-mono-higher-ranked-hang.rs&#96;](https://rust-lang.zulipchat.com/#narrow/channel/364551-t-types.2Ftrait-system-refactor/topic/perf.20.60async-closures.2Fpost-mono-higher-ranked-hang.2Ers.60/with/541535613) for context

Things compile and tests pass, but not sure if this actually solves the perf issue (edit: it does). Opening up this to do a perf (and maybe crater) run.

r? lcnr
Diffstat (limited to 'compiler/rustc_ty_utils/src/ty.rs')
-rw-r--r--compiler/rustc_ty_utils/src/ty.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_ty_utils/src/ty.rs b/compiler/rustc_ty_utils/src/ty.rs
index e91e5055e90..bb25a14ef74 100644
--- a/compiler/rustc_ty_utils/src/ty.rs
+++ b/compiler/rustc_ty_utils/src/ty.rs
@@ -235,7 +235,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ImplTraitInTraitFinder<'_, 'tcx> {
             // bounds of the RPITIT. Shift these binders back out when
             // constructing the top-level projection predicate.
             let shifted_alias_ty = fold_regions(self.tcx, unshifted_alias_ty, |re, depth| {
-                if let ty::ReBound(index, bv) = re.kind() {
+                if let ty::ReBound(ty::BoundVarIndexKind::Bound(index), bv) = re.kind() {
                     if depth != ty::INNERMOST {
                         return ty::Region::new_error_with_message(
                             self.tcx,