Test for:
  commit ed6431d6d5850a44e4087c282aac95e8743d6c3f
  Author: Joern Rennecke <joern.rennecke@embecosm.com>
  Date:   Wed May 1 01:14:23 2013 +0100
  * resource.c (mark_referenced_resources): Handle COND_EXEC.

        * testsuite/gcc.target/arc/cond-set-use.c: New test.