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-rw-r--r--compiler/rustc_parse_format/src/lib.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_parse_format/src/lib.rs b/compiler/rustc_parse_format/src/lib.rs
index 4d01f706272..9cbe04c1288 100644
--- a/compiler/rustc_parse_format/src/lib.rs
+++ b/compiler/rustc_parse_format/src/lib.rs
@@ -908,5 +908,9 @@ fn find_skips_from_snippet(
     (skips, true)
 }
 
+// Assert a reasonable size for `Piece`
+#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
+rustc_data_structures::static_assert_size!(Piece<'_>, 16);
+
 #[cfg(test)]
 mod tests;