From dc98684e9d86e5489456a23759ff90e1a42b53bb Mon Sep 17 00:00:00 2001
From: "assistant-librarian[bot]"
 <assistant-librarian[bot]@users.noreply.github.com>
Date: Mon, 7 Jul 2025 07:08:11 +0000
Subject: [PATCH] Merge commit '0aecb5ab68a468f780bd16aea0471f59b11d4972' into
 develop

---
 include/ck_tile/core/config.hpp                            | 6 ++++++
 include/ck_tile/core/tensor/tile_distribution_encoding.hpp | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/include/ck_tile/core/config.hpp b/include/ck_tile/core/config.hpp
index 1ecc28fbeb..3a1ddd8abd 100644
--- a/include/ck_tile/core/config.hpp
+++ b/include/ck_tile/core/config.hpp
@@ -263,3 +263,9 @@
 #ifndef CK_TILE_WA_ISSUE_2028
 #define CK_TILE_WA_ISSUE_2028 0
 #endif
+
+// Y pointed to R, we don't see a valuable use case.
+// Will enforce encoding to check Y not pointed to R if set to zero
+#ifndef CK_TILE_ENC_SUPPORT_Y_TO_R
+#define CK_TILE_ENC_SUPPORT_Y_TO_R 0
+#endif
diff --git a/include/ck_tile/core/tensor/tile_distribution_encoding.hpp b/include/ck_tile/core/tensor/tile_distribution_encoding.hpp
index 30cd698595..52a16f32bd 100644
--- a/include/ck_tile/core/tensor/tile_distribution_encoding.hpp
+++ b/include/ck_tile/core/tensor/tile_distribution_encoding.hpp
@@ -47,6 +47,11 @@ struct tile_distribution_encoding
     static constexpr auto ys_to_rhs_major_  = Ys2RHsMajor{};
     static constexpr auto ys_to_rhs_minor_  = Ys2RHsMinor{};
 
+#if !CK_TILE_ENC_SUPPORT_Y_TO_R
+    static_assert(container_find(ys_to_rhs_major_, 0) == NDimY,
+                  "do not support Y dim pointed to R dim");
+#endif
+
     // redundant but useful info
     // TODO: really bad code, should be over-hauled
     struct detail