gcc/
2017-11-02  Claudiu Zissulescu <claziss@synopsys.com>

	    * config/arc/arc.c (hwloop_optimize): Account for empty
	    body loops.

testsuite/
2017-11-02  Claudiu Zissulescu <claziss@synopsys.com>

 	    * gcc.target/arc/loop-1.c: Add test.

From-SVN: r254339