src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp

rev 59218 : 8244667: Shenandoah: SBC2Support::test_gc_state takes loop for wrong control
Reviewed-by: XXX

*** 877,887 ****
  
    IfNode* gc_state_iff  = new IfNode(old_ctrl, gc_state_bool, PROB_UNLIKELY(0.999), COUNT_UNKNOWN);
    ctrl                  = new IfTrueNode(gc_state_iff);
    test_fail_ctrl        = new IfFalseNode(gc_state_iff);
  
!   IdealLoopTree* loop = phase->get_loop(ctrl);
    phase->register_control(gc_state_iff,   loop, old_ctrl);
    phase->register_control(ctrl,           loop, gc_state_iff);
    phase->register_control(test_fail_ctrl, loop, gc_state_iff);
  
    phase->register_new_node(thread,        old_ctrl);
--- 877,887 ----
  
    IfNode* gc_state_iff  = new IfNode(old_ctrl, gc_state_bool, PROB_UNLIKELY(0.999), COUNT_UNKNOWN);
    ctrl                  = new IfTrueNode(gc_state_iff);
    test_fail_ctrl        = new IfFalseNode(gc_state_iff);
  
!   IdealLoopTree* loop = phase->get_loop(old_ctrl);
    phase->register_control(gc_state_iff,   loop, old_ctrl);
    phase->register_control(ctrl,           loop, gc_state_iff);
    phase->register_control(test_fail_ctrl, loop, gc_state_iff);
  
    phase->register_new_node(thread,        old_ctrl);