Fix null ptr dereference in squeeze cpu implementation.

Squeeze, when used on a single-value tensor with 1s in
each dimension, will result in zero-sized tensor without dimensions.

This change fixes it, by making its output a tensor of size [1].

Bug: 155238914
Test: squeeze_b155238914.mod.py run on coral.
Change-Id: Ia5bf655c647084d9fa094ae8a2048917a8237b81

1 files changed, 32 insertions, 0 deletions

diff --git a/nn/runtime/test/specs/V1_2/squeeze_b155238914.mod.py b/nn/runtime/test/specs/V1_2/squeeze_b155238914.mod.py
new file mode 100644
index 000000000..70e41c6d3
--- /dev/null
+++ b/nn/runtime/test/specs/V1_2/squeeze_b155238914.mod.py
@@ -0,0 +1,32 @@
+#
+# Copyright (C) 2020 The Android Open Source Project
+#
+# 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.
+#
+# Model operands
+op0 = Input("op0", ["TENSOR_FLOAT32", [9, 1, 1]])
+op1 = Output("op1", ["TENSOR_FLOAT32", [9, 1, 1]])
+op5 = Parameter("op5", ["TENSOR_FLOAT32", [1, 1, 1]], [0])
+op7 = Parameter("op7", ["TENSOR_INT32", [0]], value=None)  # omitted
+op8 = Internal("op8", ["TENSOR_FLOAT32", []])
+
+# Model operations
+model = Model()
+model.Operation("FLOOR", op0).To(op1)
+model.Operation("SQUEEZE", op5, op7).To(op8)
+
+# Example
+Example({
+    op0: [0, 0, 0, 0, 0, 0, 0, 0, 0],
+    op1: [0, 0, 0, 0, 0, 0, 0, 0, 0],
+}, model=model).DisableLifeTimeVariation()