bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	[ScheduleDAGRRList] Do not preschedule the node has ADJCALLSTACKDOWN parent	Shiva Chen	2019-01-18	1	-0/+32
	We should not pre-scheduled the node has ADJCALLSTACKDOWN parent, or else, when bottom-up scheduling, ADJCALLSTACKDOWN and ADJCALLSTACKUP may hold CallResource too long and make other calls can't be scheduled. If there's no other available node to schedule, the scheduler will try to rename the register by creating copy to avoid the conflict which will fail because CallResource is not a real physical register. llvm-svn: 351527