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-rw-r--r--compiler/rustc_hir/src/hir.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs
index 21fe894c6fc..4821b81153a 100644
--- a/compiler/rustc_hir/src/hir.rs
+++ b/compiler/rustc_hir/src/hir.rs
@@ -445,6 +445,9 @@ pub enum GenericBound<'hir> {
     Outlives(Lifetime),
 }
 
+#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
+rustc_data_structures::static_assert_size!(GenericBound<'_>, 48);
+
 impl GenericBound<'_> {
     pub fn trait_ref(&self) -> Option<&TraitRef<'_>> {
         match self {