re PR target/84876 (ICE on invalid code in lra_assign at gcc/lra-assigns.c:1601 since...

re PR target/84876 (ICE on invalid code in lra_assign at gcc/lra-assigns.c:1601 since r258504)

2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/84876
	* lra-assigns.c (lra_split_hard_reg_for): Don't use
	regno_allocno_class_array and sorted_pseudos.
	* lra-constraints.c (spill_hard_reg_in_range): Ignore hard regs in
	insns where regno is used.

2018-03-16  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/84876
	* gcc.target/i386/pr84876.c: New test.

From-SVN: r258602