Refactor old tracing tests and remove deprecated ops.

* Old doctests to run under lit.
* Old custom filecheck tests -> pytest directory (under lit).
* Rename some old ufunc ops in the tracer.

README.md

@@ -55,7 +55,7 @@ The project is roughly split into the following areas of code:
 * C++ [include](include) and [lib](lib) trees, following LLVM/MLIR conventions
 * LIT testing trees:
   * [test](test): Lit/FileCheck tests covering core MLIR based infra
-  * [pytest/Compiler](pytest/Compiler): Lit test suite that drive the compiler 
+  * [pytest/Compiler](pytest/Compiler): Lit test suite that drive the compiler
     infra from Python
   * [backend_test](backend_test): Lit test suites conditionally enabled for
     each backend
@@ -82,8 +82,6 @@ LLVM_COMMIT="$(cat ./built_tools/llvm.version)"
 cd build
 ninja
 ninja check-npcomp
-# Note: currently, some python tests run separately
-./python/run_tests.py
 
 # Setup PYTHONPATH for interactive use
 export PYTHONPATH="$(realpath build/python):$(realpath build/python_native):$(realpath build/iree/bindings/python)"
@@ -95,12 +93,9 @@ The cmake configuration populates symlinks in the `build/python` directory
 mirroring the source layout. This allows edit-run without rebuilding (unless
 if files are added/removed).
 
-Configuring the `PYTHONPATH` as above should be sufficient to run any 
+Configuring the `PYTHONPATH` as above should be sufficient to run any
 interactive tooling (`python3`, Jupyter/Colab, etc).
 
-The `run_tests.py` script is special in that it sets up the PYTHONPATH
-correctly when run.
-
 Note that running the `cmake_configure.sh` script will also output a `.env`
 file in the workspace folder with the correct PYTHONPATH set. This allows
 tools like VSCode to work by default for debugging.

include/npcomp/Dialect/Numpy/IR/NumpyOps.td

@@ -102,67 +102,6 @@ def Numpy_BuiltinUfuncCallOp : Numpy_Op<"builtin_ufunc_call"> {
   }];
 }
 
-def Numpy_BuiltinUfuncOp : Numpy_Op<"builtin_ufunc", [Symbol]> {
-  let summary = "References a built-in universal function";
-  let description = [{
-    This module-level op binds by name to a fully-qualified numpy built-in
-    ufunc (i.e. "numpy.add") and carries metadata associated with it.
-
-    Deprecated: Remove once using new builtin_ufunc_call.
-  }];
-}
-
-def Numpy_GenericUfuncOp : Numpy_Op<"generic_ufunc", [
-    IsolatedFromAbove,
-    Symbol]> {
-  let summary = "Defines a ufunc in terms of overloaded element-wise functions";
-  let description = [{
-    Deprecated: Remove once using new builtin_ufunc_call.
-  }];
-
-  let arguments = (ins
-    TypeArrayAttr:$overload_types);
-
-  let regions = (region
-    VariadicRegion<AnyRegion>:$overloads);
-}
-
-def Numpy_UfuncReturnOp : Numpy_Op<"ufunc_return", [
-    Terminator,
-    HasParent<"Numpy::GenericUfuncOp">]> {
-  let summary = "Return a value from a generic_ufunc";
-  let description = [{
-    Must terminate the basic block of a generic_ufunc overload.
-    Deprecated: Remove once using new builtin_ufunc_call.
-  }];
-  let arguments = (ins
-    Variadic<AnyType>:$operands
-  );
-
-  let assemblyFormat = "attr-dict ($operands^ `:` type($operands))?";
-}
-
-def Numpy_UfuncCallOp : Numpy_Op<"ufunc_call", []> {
-  let summary = "Default operation on a func";
-  let description = [{
-    Invokes a ufunc with the given arguments. This variant models the __call__
-    behavior of a python ufunc except that it does not model the `out`
-    parameter, which indicates an in-place update.
-    Deprecated: Remove once using new builtin_ufunc_call.
-  }];
-  let arguments = (ins
-    FlatSymbolRefAttr:$ufunc_ref,
-    Variadic<Numpy_AnyArray>:$operands
-  );
-  let results = (outs
-    Numpy_AnyArray:$result
-  );
-
-  let assemblyFormat = [{
-    $ufunc_ref `(` operands `)` attr-dict `:` functional-type(operands, results)
-  }];
-}
-
 //----------------------------------------------------------------------------//
 // Built-in array functions
 //

lib/Dialect/Numpy/IR/NumpyOps.cpp

@@ -16,135 +16,6 @@
 namespace mlir {
 namespace NPCOMP {
 namespace Numpy {
-
-//===----------------------------------------------------------------------===//
-// BuildinUfuncOp
-//===----------------------------------------------------------------------===//
-
-static ParseResult parseBuiltinUfuncOp(OpAsmParser &parser,
-                                       OperationState *result) {
-  // Parse the name as a symbol.
-  StringAttr nameAttr;
-  if (parser.parseSymbolName(nameAttr, SymbolTable::getSymbolAttrName(),
-                             result->attributes)) {
-    return failure();
-  }
-  if (failed(parser.parseOptionalAttrDict(result->attributes))) {
-    return failure();
-  }
-  return success();
-}
-
-static void printBuiltinUfuncOp(OpAsmPrinter &p, BuiltinUfuncOp op) {
-  p << op.getOperationName() << " ";
-  p.printSymbolName(op.getName());
-  p.printOptionalAttrDict(op.getAttrs(), {SymbolTable::getSymbolAttrName()});
-}
-
-//===----------------------------------------------------------------------===//
-// GenericUfuncOp
-//===----------------------------------------------------------------------===//
-
-static ParseResult parseGenericUfuncOp(OpAsmParser &parser,
-                                       OperationState *result) {
-  Builder b(result->getContext());
-
-  // Parse the name as a symbol.
-  StringAttr nameAttr;
-  if (parser.parseSymbolName(nameAttr, SymbolTable::getSymbolAttrName(),
-                             result->attributes))
-    return failure();
-
-  // Parse the body of overloads.
-  if (parser.parseLParen())
-    return failure();
-
-  SmallVector<Attribute, 4> overloadTypes;
-  for (bool first = true;; first = false) {
-    if (first) {
-      if (parser.parseOptionalKeyword("overload"))
-        break;
-    }
-    if (!first) {
-      if (parser.parseOptionalComma())
-        break;
-      if (parser.parseKeyword("overload"))
-        return failure();
-    }
-    SmallVector<OpAsmParser::OperandType, 2> argNames;
-    SmallVector<Type, 2> argTypes;
-    SmallVector<Type, 1> resultTypes;
-    SmallVector<NamedAttrList, 1> unusedAttrs;
-    bool isVariadic = false;
-    if (::mlir::impl::parseFunctionSignature(parser, false, argNames, argTypes,
-                                             unusedAttrs, isVariadic,
-                                             resultTypes, unusedAttrs))
-      return failure();
-    overloadTypes.push_back(TypeAttr::get(
-        FunctionType::get(argTypes, resultTypes, result->getContext())));
-    auto *region = result->addRegion();
-    if (parser.parseRegion(*region, argNames, argTypes))
-      return failure();
-  }
-
-  if (parser.parseRParen())
-    return failure();
-
-  // Parse 'attributes {...}'
-  if (parser.parseOptionalAttrDictWithKeyword(result->attributes))
-    return failure();
-  result->addAttribute(b.getIdentifier("overload_types"),
-                       b.getArrayAttr(overloadTypes));
-
-  return success();
-}
-
-static void printGenericUfuncOp(OpAsmPrinter &p, GenericUfuncOp op) {
-  p << op.getOperationName() << " @" << op.getName() << "(";
-  bool first = true;
-  for (auto it : llvm::enumerate(op.getRegions())) {
-    auto *region = it.value();
-    if (first)
-      first = false;
-    else
-      p << ", ";
-    if (region->empty()) {
-      p << "<<OVERLOAD_ERROR>>";
-      continue;
-    }
-
-    Block &entryBlock = region->front();
-    p << "overload(";
-    if (it.index() >= op.overload_types().size()) {
-      p << "<<MISSING OVERLOAD TYPE>>";
-      continue;
-    }
-    TypeAttr tattr = op.overload_types()[it.index()].cast<TypeAttr>();
-    FunctionType overloadType = tattr.getValue().dyn_cast<FunctionType>();
-    if (!overloadType) {
-      p << "<<ILLEGAL OVERLOAD TYPE>>";
-      continue;
-    }
-    if (overloadType.getNumInputs() != entryBlock.getNumArguments()) {
-      p << "<<OVERLOAD ARG MISMATCH>>";
-      continue;
-    }
-
-    for (unsigned i = 0, e = entryBlock.getNumArguments(); i < e; ++i) {
-      auto arg = entryBlock.getArgument(i);
-      if (i > 0)
-        p << ", ";
-      p.printOperand(arg);
-      p << ": ";
-      p.printType(overloadType.getInputs()[i]);
-    }
-    p << ")";
-    p.printArrowTypeList(overloadType.getResults());
-    p.printRegion(*region, false, true);
-  }
-  p << ")";
-}
-
 #define GET_OP_CLASSES
 #include "npcomp/Dialect/Numpy/IR/NumpyOps.cpp.inc"
 } // namespace Numpy

pytest/Core/mlir_ir.py

@@ -1,12 +1,16 @@
+# RUN: %PYTHON %s | FileCheck %s --dump-input=fail
+
 #  Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 #  See https://llvm.org/LICENSE.txt for license information.
 #  SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-"""Test for the MLIR IR Python bindings"""
+"""Test for the MLIR IR Python bindings.
+
+TODO: These tests were just for bootstrapping and are not authoritative at this
+point.
+"""
 
 from _npcomp.mlir import ir
-from npcomp.utils import test_utils
 
-test_utils.start_filecheck_test()
 c = ir.MLIRContext()
 
 # CHECK-LABEL: module @parseSuccess
@@ -37,5 +41,3 @@ try:
 except ValueError as e:
   # CHECK: [ERROR]: expected operation name in quotes
   print(e)
-
-test_utils.end_filecheck_test(__file__)

pytest/Core/mlir_pass.py

@@ -1,3 +1,5 @@
+# RUN: %PYTHON %s | FileCheck %s --dump-input=fail
+
 #  Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 #  See https://llvm.org/LICENSE.txt for license information.
 #  SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
@@ -5,9 +7,7 @@
 
 from _npcomp.mlir import ir
 from _npcomp.mlir import passes
-from npcomp.utils import test_utils
 
-test_utils.start_filecheck_test()
 c = ir.MLIRContext()
 
 pm = passes.PassManager(c)
@@ -38,5 +38,3 @@ print("PASSES:", str(pm))
 pm.run(m)
 print(m.to_asm())
 # CHECK-NOT: func @notUsed
-
-test_utils.end_filecheck_test(__file__)

pytest/Tracing/mlir_trace.py

@@ -1,13 +1,15 @@
+# RUN: %PYTHON %s | FileCheck %s --dump-input=fail
+
 #  Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 #  See https://llvm.org/LICENSE.txt for license information.
 #  SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
+import os
+os.environ["NUMPY_EXPERIMENTAL_ARRAY_FUNCTION"] = "1"
+
 from npcomp.types import *
 from npcomp.exporter import *
 from npcomp.tracing.mlir_trace import *
-from npcomp.utils import test_utils
-
-test_utils.start_filecheck_test()
 
 
 def simple_mul(a: np.ndarray, b: np.ndarray) -> np.ndarray:
@@ -29,12 +31,10 @@ exp.simple_mul.sig.result += DType(np.float32)
 mb = ModuleBuilder()
 mb.trace(exp.simple_mul)
 # CHECK: func @simple_mul(%arg0: tensor<?x4xf32>, %arg1: tensor<1xf32>) -> tensor<?x4xf32> {
-# CHECK:  %0 = numpy.ufunc_call @numpy.multiply(%arg0, %arg1) : (tensor<?x4xf32>, tensor<1xf32>) -> tensor<*x!numpy.any_dtype>
+# CHECK:  %0 = numpy.builtin_ufunc_call<"numpy.multiply"> (%arg0, %arg1) : (tensor<?x4xf32>, tensor<1xf32>) -> tensor<*x!basicpy.UnknownType>
-# CHECK:  %1 = numpy.ufunc_call @numpy.add(%0, %arg0) : (tensor<*x!numpy.any_dtype>, tensor<?x4xf32>) -> tensor<*x!numpy.any_dtype>
+# CHECK:  %1 = numpy.builtin_ufunc_call<"numpy.add"> (%0, %arg0) : (tensor<*x!basicpy.UnknownType>, tensor<?x4xf32>) -> tensor<*x!basicpy.UnknownType>
-# CHECK:  %2 = numpy.ufunc_call @numpy.add(%1, %arg1) : (tensor<*x!numpy.any_dtype>, tensor<1xf32>) -> tensor<*x!numpy.any_dtype>
+# CHECK:  %2 = numpy.builtin_ufunc_call<"numpy.add"> (%1, %arg1) : (tensor<*x!basicpy.UnknownType>, tensor<1xf32>) -> tensor<*x!basicpy.UnknownType>
-# CHECK:  %3 = numpy.narrow %2 : (tensor<*x!numpy.any_dtype>) -> tensor<?x4xf32>
+# CHECK:  %3 = numpy.narrow %2 : (tensor<*x!basicpy.UnknownType>) -> tensor<?x4xf32>
 # CHECK:  return %3 : tensor<?x4xf32>
 # CHECK: }
 print(mb.module.to_asm())
-
-test_utils.end_filecheck_test(__file__)

pytest/doctests.py

@@ -1,15 +1,37 @@
 # RUN: %PYTHON %s
 
+import os
+os.environ["NUMPY_EXPERIMENTAL_ARRAY_FUNCTION"] = "1"
+
+import traceback
+
 
 def run_doctest(mod):
-  print("TESTING:", mod)
+  print("\n\nTESTING:", mod)
+  print("--------")
   import doctest
   import sys
   import importlib
-  m = importlib.import_module(mod)
+  try:
+    m = importlib.import_module(mod)
+  except:
+    print("ERROR IMPORTING MODULE:", mod)
+    sys.exit(1)
   fc, _ = doctest.testmod(m)
   if fc:
     sys.exit(1)
 
 
-run_doctest("npcomp.compiler.py_value_utils")
+TEST_MODULES = (
+    "npcomp.compiler.py_value_utils",
+    "npcomp.dialect.Basicpy",
+    "npcomp.dialect.Numpy",
+    "npcomp.tracing.context",
+    "npcomp.tracing.emitters",
+    "npcomp.tracing.mlir_trace",
+    "npcomp.types",
+    "npcomp.exporter",
+)
+
+for mname in TEST_MODULES:
+  run_doctest(mname)

python/npcomp/dialect/Numpy.py

@@ -17,24 +17,6 @@ class DialectHelper(Basicpy.DialectHelper):
 
     >>> c = ir.MLIRContext()
     >>> h = DialectHelper(c, ir.OpBuilder(c))
-    >>> m = c.new_module()
-    >>> tensor_type = h.tensor_type(h.f32_type)
-    >>> h.builder.insert_block_start(m.first_block)
-    >>> f = h.func_op("foobar", h.function_type(
-    ...   [tensor_type, tensor_type], [tensor_type]),
-    ...   create_entry_block=True)
-    >>> uf = h.numpy_ufunc_call_op("numpy.add", tensor_type,
-    ...   *f.first_block.args)
-    >>> _ = h.return_op(uf.results)
-    >>> print(m.to_asm())
-    <BLANKLINE>
-    <BLANKLINE>
-    module {
-      func @foobar(%arg0: tensor<*xf32>, %arg1: tensor<*xf32>) -> tensor<*xf32> {
-        %0 = numpy.ufunc_call @numpy.add(%arg0, %arg1) : (tensor<*xf32>, tensor<*xf32>) -> tensor<*xf32>
-        return %0 : tensor<*xf32>
-      }
-    }
 
   DenseElementsAttrs:
     >>> c.dense_elements_attr(np.asarray([1, 2, 3, 4]))
@@ -61,7 +43,7 @@ class DialectHelper(Basicpy.DialectHelper):
     tensor<*xf32>
     >>> t.function_type([t.i32_type], [t.f32_type])
     (i32) -> f32
-    >>> t.unknown_tensor_type
+    >>> t.numpy_unknown_tensor_type
     tensor<*x!basicpy.UnknownType>
 
   """
@@ -84,13 +66,6 @@ class DialectHelper(Basicpy.DialectHelper):
     attrs = c.dictionary_attr({"qualified_name": c.string_attr(qualified_name)})
     return self.op("numpy.builtin_ufunc_call", [result_type], args, attrs)
 
-  def numpy_ufunc_call_op(self, callee_symbol, result_type, *args):
-    """Creates a numpy.ufunc_call op."""
-    c = self.context
-    attrs = c.dictionary_attr(
-        {"ufunc_ref": c.flat_symbol_ref_attr(callee_symbol)})
-    return self.op("numpy.ufunc_call", [result_type], args, attrs)
-
   def numpy_narrow_op(self, result_type, operand):
     """Creates a numpy.narrow op."""
     return self.op("numpy.narrow", [result_type], [operand])
@@ -100,34 +75,6 @@ class DialectHelper(Basicpy.DialectHelper):
                    [array] + list(slice_elements))
 
 
-def load_builtin_module(context=None):
-  """Loads a module populated with numpy built-ins.
-
-  This is not a long-term solution but overcomes some bootstrapping
-  issues.
-
-    >>> m = load_builtin_module()
-    >>> op = m.region(0).blocks.front.operations.front
-    >>> op.is_registered
-    True
-    >>> op.name
-    'numpy.builtin_ufunc'
-
-  Args:
-    context: The MLIRContext to use (None to create a new one).
-  Returns:
-    A ModuleOp.
-  """
-  if context is None:
-    context = ir.MLIRContext()
-  return context.parse_asm(_BUILTIN_MODULE_ASM)
-
-
-_BUILTIN_MODULE_ASM = r"""
-  numpy.builtin_ufunc @numpy.add
-  numpy.builtin_ufunc @numpy.multiply
-"""
-
 if __name__ == "__main__":
   import doctest
   doctest.testmod()

python/npcomp/tracing/emitters.py

@@ -58,9 +58,9 @@ class TraceValueMap(
                ["input_trace_values", "result_trace_value_types", "extra"],
                defaults=(None,))):
   """The result of mapping an invocation to corresponding op structure.
-  
+
   This type associates:
-    - Python (object, TraceValueType) representing invocation inputs that 
+    - Python (object, TraceValueType) representing invocation inputs that
       correspond to SSA values in the IR.
     - TraceValueTypes that are the expected logical result types from the
       invocation.
@@ -92,7 +92,7 @@ class FuncEmitter:
 
   def map_results(self, py_results, extra):
     """Maps a list of python results to actual function return values.
-    
+
     Args:
       py_results: List of python results corresponding to the emitted op
         results.
@@ -105,7 +105,7 @@ class FuncEmitter:
 
   def emit(self, request: EmissionRequest):
     """Emits IR using the provided ops and types factories.
-    
+
     Args:
       emission_inputs: An EmissionRequest produced by tracing each TraceValue
         from a previous call to map_invocation and the corresponding extra
@@ -120,7 +120,7 @@ class FuncEmitter:
 
 class GenericCallUfuncEmitter(FuncEmitter):
   """A FuncEmitter for generic ufuncs requiring no special behavior.
-  
+
   Representation:
     >>> emitter = GenericCallUfuncEmitter("numpy.add")
     >>> emitter
@@ -168,8 +168,9 @@ class GenericCallUfuncEmitter(FuncEmitter):
   def emit(self, request: EmissionRequest):
     h = request.dialect_helper
     op_result_type = h.tensor_type(h.numpy_any_dtype)
-    call_op = h.numpy_ufunc_call_op(self._ufunc_name, op_result_type,
+    call_op = h.numpy_builtin_ufunc_call_op(*request.input_ssa_values,
-                                    *request.input_ssa_values)
+                                            qualified_name=self._ufunc_name,
+                                            result_type=op_result_type)
     return call_op.results
 
 
@@ -219,7 +220,7 @@ class GenericArrayFuncEmitter(FuncEmitter):
 
 class EmitterRegistry:
   """Registry of known Emitter instances mapped to source function.
-  
+
     >>> r = EmitterRegistry.create_default()
     >>> r.lookup_ufunc(np.add, "__call__")
     <ufunc emitter 'numpy.add'>

python/npcomp/tracing/mlir_trace.py

@@ -20,9 +20,7 @@ class ModuleBuilder:
 
   def __init__(self, mlir_context=None, emitter_registry=None):
     self.context = mlir_context if mlir_context else ir.MLIRContext()
-    # TODO: Instead of bootstrapping a large module, populate imports
+    self.module = self.context.new_module()
-    # dynamically.
-    self.module = Numpy.load_builtin_module(self.context)
     self.helper = Numpy.DialectHelper(self.context, ir.OpBuilder(self.context))
     self.emitters = (emitter_registry
                      if emitter_registry else EmitterRegistry.create_default())

python/run_tests.py

@@ -1,61 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import subprocess
-import sys
-
-TEST_MODULES = (
-    "npcomp.mlir_ir_test",
-    "npcomp.mlir_pass_test",
-    "npcomp.dialect.Basicpy",
-    "npcomp.dialect.Numpy",
-    "npcomp.tracing.context",
-    "npcomp.tracing.mlir_trace",
-    "npcomp.types",
-    "npcomp.exporter",
-    "npcomp.tracing.mlir_trace_test",
-)
-
-# Compute PYTHONPATH for sub processes.
-DIRSEP = os.path.pathsep
-LOCAL_PYTHONPATH_COMPONENTS = [
-    # This directory.
-    os.path.abspath(os.path.dirname(__file__)),
-    # The parallel python_native directory (assuming in the build tree).
-    os.path.abspath(
-        os.path.join(os.path.dirname(__file__), "..", "python_native"))
-]
-PYTHONPATH = DIRSEP.join(LOCAL_PYTHONPATH_COMPONENTS)
-if "PYTHONPATH" in os.environ:
-  PYTHONPATH = PYTHONPATH + DIRSEP + os.environ["PYTHONPATH"]
-CHILD_ENVIRON = dict(os.environ)
-CHILD_ENVIRON["PYTHONPATH"] = PYTHONPATH
-
-# Configure filecheck.
-FILECHECK_BINARY = os.path.abspath(
-    os.path.join(os.path.dirname(__file__), "..", "..", "..", "bin",
-                 "FileCheck"))
-if os.path.exists(FILECHECK_BINARY):
-  CHILD_ENVIRON["FILECHECK_BINARY"] = FILECHECK_BINARY
-else:
-  print("WARNING! Built FileCheck not found. Leaving to path resolution")
-
-passed = []
-failed = []
-
-for test_module in TEST_MODULES:
-  print("--------====== RUNNING %s ======--------" % test_module)
-  try:
-    subprocess.check_call([sys.executable, "-Wignore", "-m", test_module],
-                          env=CHILD_ENVIRON)
-    print("--------====== DONE %s ======--------\n" % test_module)
-    passed.append(test_module)
-  except subprocess.CalledProcessError:
-    print("!!!!!!!!====== ERROR %s ======!!!!!!!!\n" % test_module)
-    failed.append(test_module)
-
-print("Done: %d passed, %d failed" % (len(passed), len(failed)))
-if failed:
-  for test_module in failed:
-    print("  %s: FAILED" % test_module)
-  sys.exit(1)

test/Dialect/Numpy/ops.mlir

@@ -1,52 +1,8 @@
 // RUN: npcomp-opt -split-input-file %s | npcomp-opt | FileCheck --dump-input=fail %s
 
-// CHECK-LABEL: @any_dtype
-func @any_dtype(%arg0: tensor<*x!numpy.any_dtype>) -> (tensor<*x!numpy.any_dtype>) {
-  return %arg0 : tensor<*x!numpy.any_dtype>
-}
-
 // -----
 // CHECK-LABEL: @builtin_ufunc
-module @builtin_ufunc {
+func @builtin_ufunc(%arg0 : tensor<3xf64>, %arg1 : tensor<3xf64>) -> tensor<3xf64> {
-  // CHECK: numpy.builtin_ufunc @numpy.add
+  %0 = numpy.builtin_ufunc_call<"numpy.add"> (%arg0, %arg1) : (tensor<3xf64>, tensor<3xf64>) -> tensor<3xf64>
-  numpy.builtin_ufunc @numpy.add
+  return %0 : tensor<3xf64>
-  // CHECK: numpy.builtin_ufunc @numpy.custom_sub {some_attr = "foobar"}
-  numpy.builtin_ufunc @numpy.custom_sub { some_attr = "foobar" }
-}
-
-// -----
-// CHECK-LABEL: @example_generic_ufunc
-module @example_generic_ufunc {
-  // CHECK: numpy.generic_ufunc @numpy.add(
-  numpy.generic_ufunc @numpy.add (
-    // CHECK-SAME: overload(%arg0: i32, %arg1: i32) -> i32 {
-    overload(%arg0: i32, %arg1: i32) -> i32 {
-      // CHECK: addi
-      %0 = addi %arg0, %arg1 : i32
-      numpy.ufunc_return %0 : i32
-    },
-    // CHECK: overload(%arg0: f32, %arg1: f32) -> f32 {
-    overload(%arg0: f32, %arg1: f32) -> f32 {
-      // CHECK: addf
-      %0 = addf %arg0, %arg1 : f32
-      numpy.ufunc_return %0 : f32
-    }
-  )
-}
-
-// -----
-// CHECK-LABEL: @ufunc_apply_ops
-module @ufunc_apply_ops {
-  numpy.generic_ufunc @numpy.add (
-    overload(%arg0: i32, %arg1: i32) -> i32 {
-      %0 = addi %arg0, %arg1 : i32
-      numpy.ufunc_return %0 : i32
-    }
-  )
-
-  func @example(%arg0: tensor<*xi32>, %arg1: tensor<*xi32>) -> tensor<*xi32> {
-    %0 = numpy.ufunc_call @numpy.add(%arg0, %arg1) : (tensor<*xi32>, tensor<*xi32>) 
-      -> tensor<*xi32>
-    return %0 : tensor<*xi32>
-  }
 }