1 files changed, 72 insertions, 0 deletions
diff --git a/tensorflow/compiler/xla/service/cpu/cpu_hlo_support_checker_test.cc b/tensorflow/compiler/xla/service/cpu/cpu_hlo_support_checker_test.cc
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index 0000000000..0f463e6de6
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+++ b/tensorflow/compiler/xla/service/cpu/cpu_hlo_support_checker_test.cc
@@ -0,0 +1,72 @@
+/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==============================================================================*/
+
+#include "tensorflow/compiler/xla/service/cpu/cpu_hlo_support_checker.h"
+#include "tensorflow/compiler/xla/shape_util.h"
+#include "tensorflow/compiler/xla/test.h"
+#include "tensorflow/compiler/xla/tests/hlo_test_base.h"
+#include "tensorflow/core/lib/core/error_codes.pb.h"
+#include "tensorflow/core/lib/core/status_test_util.h"
+
+namespace xla {
+namespace {
+
+using ::testing::HasSubstr;
+
+class CpuHloSupportCheckerTest : public HloTestBase {
+ protected:
+  CpuHloSupportChecker& checker() { return checker_; }
+
+ private:
+  CpuHloSupportChecker checker_;
+};
+
+TEST_F(CpuHloSupportCheckerTest, Add) {
+  HloComputation::Builder builder(TestName());
+  const Shape scalar_shape = ShapeUtil::MakeShape(F32, {});
+  HloInstruction* param0 = builder.AddInstruction(
+      HloInstruction::CreateParameter(0, scalar_shape, "param0"));
+  HloInstruction* param1 = builder.AddInstruction(
+      HloInstruction::CreateParameter(1, scalar_shape, "param1"));
+  builder.AddInstruction(HloInstruction::CreateBinary(
+      scalar_shape, HloOpcode::kAdd, param0, param1));
+  auto module = CreateNewModule();
+  module->AddEntryComputation(builder.Build());
+
+  TF_ASSERT_OK(checker().Run(module.get()).status());
+}
+
+TEST_F(CpuHloSupportCheckerTest, SparseUnimplemented) {
+  HloComputation::Builder builder(TestName());
+  const Shape sparse_shape = ShapeUtil::MakeShapeWithSparseLayout(F32, {10}, 2);
+  HloInstruction* param0 = builder.AddInstruction(
+      HloInstruction::CreateParameter(0, sparse_shape, "param0"));
+  HloInstruction* param1 = builder.AddInstruction(
+      HloInstruction::CreateParameter(1, sparse_shape, "param1"));
+  builder.AddInstruction(HloInstruction::CreateBinary(
+      sparse_shape, HloOpcode::kAdd, param0, param1));
+  auto module = CreateNewModule();
+  module->AddEntryComputation(builder.Build());
+
+  Status status = checker().Run(module.get()).status();
+  ASSERT_EQ(status.code(), tensorflow::error::UNIMPLEMENTED);
+  EXPECT_THAT(status.error_message(),
+              HasSubstr("CPU backend does not support"));
+  EXPECT_THAT(status.error_message(),
+              HasSubstr(ShapeUtil::HumanStringWithLayout(sparse_shape)));
+}
+
+}  // namespace
+}  // namespace xla