re PR rtl-optimization/63448 (ICE when compiling atlas 3.10.2)

re PR rtl-optimization/63448 (ICE when compiling atlas 3.10.2)

2014-10-15  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/63448
	* lra-int.h (LRA_MAX_CONSTRAINT_ITERATION_NUMBER): Remove.
	(LRA_MAX_ASSIGNMENT_ITERATION_NUMBER): New.
	(LRA_MAX_INHERITANCE_PASSES): Use it.
	(lra_constraint_iter_after_spill): Remove.
	(lra_assignment_iter): New.
	(lra_assignment_iter_after_spill): New.
	* lra-assigns.c (lra_assignment_iter): New.
	(lra_assignment_iter_after_spill): New.
	(former_reload_pseudo_spill_p): New.
	(spill_for): Set up former_reload_pseudo_spill_p.
	(setup_live_pseudos_and_spill_after_risky): Ditto.
	(assign_by_spills): Ditto.
	(lra_assign): Increment lra_assignment_iter.  Print the iteration
	number.  Reset former_reload_pseudo_spill_p.  Check
	lra_assignment_iter_after_spill.
	* lra.c (lra): Remove lra_constraint_iter_after_spill.  Initialize
	lra_assignment_iter and lra_assignment_iter_after_spill.
	* lra-constraints.c (lra_constraint_iter_after_spill): Remove.
	(lra_constraints): Remove code with
	lra_assignment_iter_after_spill.

2014-10-15  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/63448
	* gcc.target/i386/pr63448.c: New test.

From-SVN: r216270