re PR target/48273 (ICE: in create_copy_of_insn_rtx, at sel-sched-ir.c:5604...

re PR target/48273 (ICE: in create_copy_of_insn_rtx, at sel-sched-ir.c:5604 with -fsel-sched-pipelining -fselective-scheduling2 -march=core2)

	PR target/48273
	* cfgloop.h (loop_has_exit_edges): New helper.
	* sel-sched-ir.c (init_global_and_expr_for_insn): Make CALLs
	non-clonable.
	* sel-sched.c (sel_setup_region_sched_flags): Don't pipeline loops
	that have no exit edges.

testsuite:
	* g++.dg/opt/pr48273.C: New.

From-SVN: r172175