1 // Copyright 2019 The Pigweed Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
5 // the License at
6 //
7 //     https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
13 // the License.
14 
15 char* volatile non_optimizable_pointer;
16 
SimpleFunction()17 int SimpleFunction() { return *non_optimizable_pointer; }
18 
main(int argc,char ** argv)19 int main(int argc, char** argv) {
20   (void)argc;
21   (void)argv;
22 
23   // Add function and call to this binary.
24   *non_optimizable_pointer = SimpleFunction();
25   return SimpleFunction();
26 }
27