S/390: Fix PR80725.

gcc/ChangeLog:

2017-05-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	PR target/80725
	* config/s390/s390.c (s390_check_qrst_address): Check incoming
	address against address_operand predicate.
	* config/s390/s390.md ("*indirect_jump"): Swap alternatives.

gcc/testsuite/ChangeLog:

2017-05-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/pr80725.c: New test.

From-SVN: r248407