[mlir] Add OpAsmTypeInterface for pretty-print

Author: ZenithalHourlyRate

mlir/include/mlir/IR/CMakeLists.txt

@@ -1,7 +1,14 @@
-add_mlir_interface(OpAsmInterface)
 add_mlir_interface(SymbolInterfaces)
 add_mlir_interface(RegionKindInterface)
 
+set(LLVM_TARGET_DEFINITIONS OpAsmInterface.td)
+mlir_tablegen(OpAsmOpInterface.h.inc -gen-op-interface-decls)
+mlir_tablegen(OpAsmOpInterface.cpp.inc -gen-op-interface-defs)
+mlir_tablegen(OpAsmTypeInterface.h.inc -gen-type-interface-decls)
+mlir_tablegen(OpAsmTypeInterface.cpp.inc -gen-type-interface-defs)
+add_public_tablegen_target(MLIROpAsmInterfaceIncGen)
+add_dependencies(mlir-generic-headers MLIROpAsmInterfaceIncGen)
+
 set(LLVM_TARGET_DEFINITIONS BuiltinAttributes.td)
 mlir_tablegen(BuiltinAttributes.h.inc -gen-attrdef-decls)
 mlir_tablegen(BuiltinAttributes.cpp.inc -gen-attrdef-defs)

mlir/include/mlir/IR/OpAsmInterface.td

@@ -109,6 +109,31 @@ def OpAsmOpInterface : OpInterface<"OpAsmOpInterface"> {
   ];
 }
 
+//===----------------------------------------------------------------------===//
+// OpAsmTypeInterface
+//===----------------------------------------------------------------------===//
+
+def OpAsmTypeInterface : TypeInterface<"OpAsmTypeInterface"> {
+  let description = [{
+    This interface provides hooks to interact with the AsmPrinter and AsmParser
+    classes.
+  }];
+  let cppNamespace = "::mlir";
+
+  let methods = [
+    InterfaceMethod<[{
+        Get a special name to use when printing value of this type.
+
+        For example, the default implementation of OpAsmOpInterface
+        will respect this method when printing the results of an operation
+        and/or block argument of it.
+      }],
+      "void", "getAsmName",
+      (ins "::mlir::OpAsmSetNameFn":$setNameFn), "", ";"
+    >,
+  ];
+}
+
 //===----------------------------------------------------------------------===//
 // ResourceHandleParameter
 //===----------------------------------------------------------------------===//

mlir/include/mlir/IR/OpImplementation.h

@@ -734,7 +734,7 @@ class AsmParser {
   virtual OptionalParseResult parseOptionalInteger(APInt &result) = 0;
   virtual OptionalParseResult parseOptionalDecimalInteger(APInt &result) = 0;
 
- private:
+private:
   template <typename IntT, typename ParseFn>
   OptionalParseResult parseOptionalIntegerAndCheck(IntT &result,
                                                    ParseFn &&parseFn) {
@@ -756,7 +756,7 @@ class AsmParser {
     return success();
   }
 
- public:
+public:
   template <typename IntT>
   OptionalParseResult parseOptionalInteger(IntT &result) {
     return parseOptionalIntegerAndCheck(
@@ -1727,6 +1727,10 @@ class OpAsmParser : public AsmParser {
 // Dialect OpAsm interface.
 //===--------------------------------------------------------------------===//
 
+/// A functor used to set the name of the result. See 'getAsmResultNames' below
+/// for more details.
+using OpAsmSetNameFn = function_ref<void(StringRef)>;
+
 /// A functor used to set the name of the start of a result group of an
 /// operation. See 'getAsmResultNames' below for more details.
 using OpAsmSetValueNameFn = function_ref<void(Value, StringRef)>;
@@ -1820,7 +1824,9 @@ ParseResult parseDimensionList(OpAsmParser &parser,
 //===--------------------------------------------------------------------===//
 
 /// The OpAsmOpInterface, see OpAsmInterface.td for more details.
-#include "mlir/IR/OpAsmInterface.h.inc"
+#include "mlir/IR/OpAsmTypeInterface.h.inc"
+// put Attr/Type before Op
+#include "mlir/IR/OpAsmOpInterface.h.inc"
 
 namespace llvm {
 template <>

mlir/lib/IR/AsmPrinter.cpp

@@ -125,7 +125,8 @@ void OpAsmPrinter::printFunctionalType(Operation *op) {
 //===----------------------------------------------------------------------===//
 
 /// The OpAsmOpInterface, see OpAsmInterface.td for more details.
-#include "mlir/IR/OpAsmInterface.cpp.inc"
+#include "mlir/IR/OpAsmOpInterface.cpp.inc"
+#include "mlir/IR/OpAsmTypeInterface.cpp.inc"
 
 LogicalResult
 OpAsmDialectInterface::parseResource(AsmParsedResourceEntry &entry) const {

mlir/test/lib/Dialect/Test/TestTypeDefs.td

@@ -398,4 +398,8 @@ def TestTypeVerification : Test_Type<"TestTypeVerification"> {
   let assemblyFormat = "`<` $param `>`";
 }
 
+def TestTypeOpAsmTypeInterface : Test_Type<"TestTypeOpAsmTypeInterface", [DeclareTypeInterfaceMethods<OpAsmTypeInterface, ["getAsmName"]>]> {
+  let mnemonic = "op_asm_type_interface";
+}
+
 #endif // TEST_TYPEDEFS

mlir/test/lib/Dialect/Test/TestTypes.cpp

@@ -532,3 +532,8 @@ void TestRecursiveAliasType::print(AsmPrinter &printer) const {
   }
   printer << ">";
 }
+
+void TestTypeOpAsmTypeInterfaceType::getAsmName(
+    OpAsmSetNameFn setNameFn) const {
+  setNameFn("op_asm_type_interface");
+}