diff --git a/mlir/include/mlir/IR/OpBase.td b/mlir/include/mlir/IR/OpBase.td
--- a/mlir/include/mlir/IR/OpBase.td
+++ b/mlir/include/mlir/IR/OpBase.td
@@ -2288,8 +2288,11 @@
 class ElementType<string name> : StrFunc<"getElementTypeOrSelf($" # name # ")">;
 
 class AllMatchPred<list<string> values> :
-    CPred<"::llvm::is_splat(::llvm::makeArrayRef({"
-          # !interleave(values, ", ") #"}))">;
+  CPred<!if(!lt(!size(values), 2),
+            "true",
+            !foldl(!head(values), !tail(values), acc, v,
+                   acc # " == " # v # " && " # v)
+              # " == " # !head(values))>;
 
 class AllMatch<list<string> values, string summary> :
     PredOpTrait<summary, AllMatchPred<values>>;