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iree-org · Nov 16, 2023 · 9e3d7c4 · 9e3d7c4
1 parent 6c41f47
commit 9e3d7c4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/compiler/src/iree/compiler/Codegen/Common/CPU/CPUMaterializeEncodingPass.cpp b/compiler/src/iree/compiler/Codegen/Common/CPU/CPUMaterializeEncodingPass.cpp
@@ -172,7 +172,8 @@ enumerateMatmulTileX86_64(EncodingUser user, TypeRange elementTypes,
             TileMxNxK{1, 16, 1},  // Truncation of the above.
         };
       } else {
-        // Code generation tile sizes.
+        // Code generation tile sizes. We try to keep certain level of unrolling
+        // on the N dimension when the M dimension is too narrow for it.
         return {
             TileMxNxK{16, 16, 1}, // Aim to use VFMADD* (zmm).
             TileMxNxK{8, 32, 1},  // Truncation of the above.