From a4025eba8f9ed016876f727a091e12c711c85cdb Mon Sep 17 00:00:00 2001
From: Scott McMurray <scottmcm@users.noreply.github.com>
Date: Sat, 25 May 2024 02:11:45 -0700
Subject: [PATCH] Add custom mir support for `PtrMetadata`

---
 core/src/intrinsics/mir.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/src/intrinsics/mir.rs b/core/src/intrinsics/mir.rs
index 02665b2676cc1..fa5bb28adff94 100644
--- a/core/src/intrinsics/mir.rs
+++ b/core/src/intrinsics/mir.rs
@@ -360,6 +360,10 @@ define!("mir_assume", fn Assume(operand: bool));
 define!("mir_deinit", fn Deinit<T>(place: T));
 define!("mir_checked", fn Checked<T>(binop: T) -> (T, bool));
 define!("mir_len", fn Len<T>(place: T) -> usize);
+define!(
+    "mir_ptr_metadata",
+    fn PtrMetadata<P: ?Sized>(place: *const P) -> <P as ::core::ptr::Pointee>::Metadata
+);
 define!("mir_copy_for_deref", fn CopyForDeref<T>(place: T) -> T);
 define!("mir_retag", fn Retag<T>(place: T));
 define!("mir_move", fn Move<T>(place: T) -> T);