JDK-8279535 : C2: Dead code in PhaseIdealLoop::create_loop_nest after JDK-8276116
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 18,19
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2022-01-05
  • Updated: 2022-01-18
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JDK 19
19Unresolved
Related Reports
Relates :  
JDK-8276116 - C2: optimize long range checks in int counted loops
Description
SonarCloud reports these lines are dead:

bool PhaseIdealLoop::create_loop_nest(IdealLoopTree* loop, Node_List &old_new) {
 ...
  BoolTest::mask mask = exit_test->as_BaseCountedLoopEnd()->test_trip();
  Node* cmp = exit_test->as_BaseCountedLoopEnd()->cmp_node();
 ...

Either these are a simple leftovers, or their non-use constitutes a bug?