WIP: Project Lilliput backport #12
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… Headers This commit is a commination of 75 backported commits from lilliput-jdk17u: 1. Initial import of Lilliput in JDK17u 2. Use LRB instead of plain resolve in Shenandoah object iterator 3. 8299478: [Lilliput/JDK17] Fix Windows build 4. 8299552: [Lilliput/JDK17] Fix 32bit builds 5. 8300138: [Lilliput/JDK17] Optimize anonymous owner fix-up path 6. 8300566: [Lilliput/JDK17] Properly set ZF on anon-check path 7. 8303027: [Lilliput/JDK17] Correctly resolve forwarded objects in G1 heap iteration 8. 8302210: [Lilliput/JDK17] Optimize fix-anon monitor owner path 9. 8303771: [Lilliput/JDK17] Fix interpreter asymmetric fast-locking 10. 8303450: [Lilliput/JDK17] Runtime flag to enable Lilliput 11. 8304410: [Lilliput/JDK17] Remove unneeded code in ContiguousSpace::object_iterate_from() 12. 8304702: [Lilliput/JDK17] Increase size of C2HandleAnonOMOwnerStub on x86 13. 8304329: [Lilliput/JDK17] Fix DiagnoseSyncOnValueBasedClasses 14. 8304331: [Lilliput/JDK17] Fix RTM locking 15. 8307764: [Lilliput/JDK17] Fix JVMTI GetObjectMonitorUsage() 16. 8308011: [Lilliput/JDK17] Use narrow i-hash only when +UseCompactObjectHeaders 17. 8308172: [Lilliput/JDK17] Revert disabling vzeroupper 18. 8308107: [Lilliput/JDK17] Cherry-pick: 8291555: Implement alternative fast-locking scheme 19. 8308641: [Lilliput/JDK17] Remove wrong assert in klass.hpp 20. 8308651: [Lilliput/JDK17] Cherry-pick PPC parts of 8297036: Generalize C2 stub mechanism 21. 8308647: [Lilliput/JDK17] Fix cross-builds 22. 8308680: [Lilliput/JDK17] Add missing LoadKlassStub skeletons 23. 8308423: [Lilliput/JDK17] Cherry-pick GC forwarding 24. 8308901: [Lilliput/JDK17] Cherry-pick C2 prototype header improvements 25. 8308956: [Lilliput/JDK17] Fix some object initialization paths 26. 8309192: [Lilliput/JDK17] Properly deal with flag mismatch in CDS 27. 8309197: [Lilliput/JDK17] Fix ObjectSampleMarker without Lilliput 28. 8310042: [Lilliput/JDK17] ZGC fixes and cleanups 29. 8310231: [Lilliput/JDK17] Disable compact headers by default 30. 8310243: [Lilliput/JDK17] Revert UseCompressedClassPointers back to false 31. 8310156: [Lilliput/JDK17] Specialize full-GC loops 32. 8310529: [Lilliput/JDK17] Provide infrastructure for Lilliput-specific ProblemList 33. 8310534: [Lilliput/JDK17] Shenandoah/JVMTI heap-walk crashes 34. 8310555: [Lilliput/JDK17] Revert innocuous changes against upstream 35. 8310427: [Lilliput/JDK17] Protect from running broken JFR and JVMTI code with compact headers 36. 8310531: [Lilliput/JDK17] Revert unnecessary test code modifications and fix the tests 37. 8310558: [Lilliput/JDK17] Missing klass gap initialization in ContiguousSpace::allocate_temporary_filler 38. 8310573: [Lilliput/JDK17] Revert assert removals for -UCOH paths 39. 8310642: [Lilliput/JDK17] Remove unnecessary check in G1ParScanThreadState 40. 8310662: [Lilliput/JDK17] Fix OptoRuntime::new_array_nozero_C 41. 8310670: [Lilliput/JDK17] Add more tests to Lilliput ProblemList 42. 8310715: [Lilliput/JDK17] Revert more non-Lilliput test adjustments 43. 8310744: [Lilliput/JDK17] Revert C1_MacroAssembler::initialize_header removal of BiasedLocking path 44. 8310733: [Lilliput/JDK17] Enter object_iterate_impl() RESOLVE path only when +UCOH 45. 8310742: [Lilliput/JDK17] Revert JVMCI _metadata field removal 46. 8310944: [Lilliput/JDK17] Streamline and cleanup GC code 47. 8311866: [Lilliput/JDK17] Disallow accessing oop metadata vmStructs with +UCOH 48. 8312095: [Lilliput/JDK17] Reinstate use of BiasedLockingCounters 49. 8312171: [Lilliput/JDK17] Fix oop array element alignment 50. 8275415: Prepare Leak Profiler for Lilliput 51. 8308296: [Lilliput/JDK17] Cherry-pick: 8275415: Prepare Leak Profiler for Lilliput 52. 8312606: [Lilliput/JDK17] Cherry-pick: 8276333: jdk/jfr/event/oldobject/TestLargeRootSet.java failed "assert(!contains(edge->reference())) failed: invariant" 53. 8314131: [Lilliput/JDK17] Make loadNKlassCompactHeaders not use a TEMP register 54. 8308411: [Lilliput/JDK17] Cherry-pick: 8283710: JVMTI: Use BitSet for object marking 55. 8314894: [Lilliput/JDK17] Revert changes in zRelocate, prevent ZGC with Lilliput 56. 8317957: [Lilliput/JDK17] Make C2 LoadNKlassCompactHeader more robust 57. 8318172: [Lilliput/JDK17] Disable Lilliput in TestZGCWithCDS 58. 8319724: [Lilliput] ParallelGC: Forwarded objects found during heap inspection 59. 8319135: [Lilliput] Fix objArrayOop gtest 60. 8319524: [Lilliput] Only warn when compact headers are explicitly enabled 61. 8320666: [Lilliput/JDK17] Add arrayOopDesc::base_offset() gtest 62. 8316746: Top of lock-stack does not match the unlocked object 63. 8316179: Use consistent naming for lightweight locking in MacroAssembler 64. 8316735: Print LockStack in hs_err files 65. 8316401: sun/tools/jhsdb/JStackStressTest.java failed with "InternalError: We should have found a thread that owns the anonymous lock" 66. 8316181: Move the fast locking implementation out of the .ad files 67. 8316880: AArch64: "stop: Header is not fast-locked" with -XX:-UseLSE since JDK-8315880 68. 8317452: [JVMCI] Export symbols used by lightweight locking to JVMCI compilers. 69. 8317262: LockStack::contains(oop) fails "assert(t->is_Java_thread()) failed: incorrect cast to JavaThread" 70. 8318015: Lock inflation not needed for OSR or Deopt for new locking modes 71. 8318895: Deoptimization results in incorrect lightweight locking stack 72. 8319897: Move StackWatermark handling out of LockStack::contains 73. 8319778: Remove unreachable code in ObjectSynchronizer::exit 74. 8319773: Avoid inflating monitors when installing hash codes for LM_LIGHTWEIGHT 75. 8324881: ObjectSynchronizer::inflate(Thread* current...) is invoked for non-current thread
This is a combination of 9 backported commits from openjdk/lilliput: 1. 8307392: [Lilliput] Revert deflation of dead object's monitors 2. 8319896: Remove monitor deflation from final audit 3. 8320317: ObjectMonitor NotRunnable is not really an optimization 4. 8316417: ObjectMonitorIterator does not return the most recent monitor and is incorrect if no monitors exists 5. 8329726: Use non-short forward jumps in lightweight locking 6. 8324174: assert(m->is_entered(current)) failed: invariant 7. 8329757: Crash with fatal error: DEBUG MESSAGE: Fast Unlock lock on stack 8. 8330813: Don't call methods from Compressed(Oops|Klass) if the associated mode is inactive 9. 8323724: Remove potential re-inflation from FastHashCode under LM_LIGHTWEIGHT
Also re-add Thread.isAlive() removed in JDK-8305425
…promotion-failed objects
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