2013-06-08  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/57559
	* lra-constraints.c (process_alt_operands): Don't discourage
	memory with known offset for offsetable memory constraint.
	* lra.c (lra_emit_add): Exchange y and z for 2-op add insn.

2013-06-08  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/57559
	* gcc.target/s390/pr57559.c : New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@199859 138bc75d-0d04-0410-961f-82ee72b054a4