Add I32ElementsAttr to OpBase

PiperOrigin-RevId: 264969142

Author: MLIR Team

include/mlir/IR/OpBase.td

@@ -902,6 +902,19 @@ def TypeArrayAttr : TypedArrayAttrBase<TypeAttr, "type array attribute"> {
   let constBuilderCall = ?;
 }
 
+def I32ElementsAttr : Attr<
+  CPred<"$_self.isa<DenseIntElementsAttr>() &&"
+      "$_self.cast<DenseIntElementsAttr>().getType()."
+      "getElementType().isInteger(32)">,
+  "32-bit integer elements attribute"> {
+  let storageType = [{ DenseIntElementsAttr }];
+  let returnType = [{ DenseIntElementsAttr }];
+  let constBuilderCall = "$_builder.getDenseElementsAttr("
+    "$_builder.getTensorType({}, $_builder.getIntegerType(32)), "
+      "{$_builder.getI32IntegerAttr($0)})";
+  let convertFromStorage = "$_self";
+}
+
 // Attributes containing symbol references.
 def SymbolRefAttr : Attr<CPred<"$_self.isa<SymbolRefAttr>()">,
                         "symbol reference attribute"> {

test/lib/TestDialect/TestOps.td

@@ -238,6 +238,10 @@ def SingleBlockImplicitTerminatorOp : TEST_Op<"SingleBlockImplicitTerminator",
   let regions = (region SizedRegion<1>:$region);
 }
 
+def I32ElementsAttributesOp : TEST_Op<"i32ElementsAttr"> {
+  let arguments = (ins I32ElementsAttr:$attr);
+}
+
 //===----------------------------------------------------------------------===//
 // Test Patterns
 //===----------------------------------------------------------------------===//

test/mlir-tblgen/types.mlir

@@ -205,3 +205,27 @@ func @does_not_have_static_memref(%arg0: memref<?xi32>) {
   // expected-error@+1 {{'test.takes_static_memref' op operand #0 must be statically shaped memref of any type values}}
   "test.takes_static_memref"(%arg0) : (memref<?xi32>) -> ()
 }
+
+// -----
+
+func @elements_attr_not_i32_f32() {
+  // expected-error@+1 {{32-bit integer elements attribute}}
+  "test.i32ElementsAttr"() {attr = dense<[1.0, 20.0]>:tensor<2xf32>} : () -> ()
+  return
+}
+
+// -----
+
+func @elements_attr_not_i32_i64() {
+  // expected-error@+1 {{32-bit integer elements attribute}}
+  "test.i32ElementsAttr"() {attr = dense<[1, 20]>:tensor<2xi64>} : () -> ()
+  return
+}
+
+
+// -----
+
+func @elements_attr_i32(%arg0: tensor<1x2xi32>) {
+  "test.i32ElementsAttr"() {attr = dense<[1, 2]>:tensor<2xi32>} : () -> ()
+  return
+}