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  1. JDK
  2. JDK-8288194

C2: assert(t->meet(t0) == t) failed: Not monotonic

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      Running:
      test/hotspot/jtreg/compiler/vectorapi/VectorMemoryAlias.java

      Also on:
      compiler/vectorapi/VectorReplicateLongSpecialImmTest.java
      (aarch64 only)

      with extra Flag:
      -XX:TypeProfileLevel=222

      # Internal Error (/home/emanuel/Documents/fork3-jdk/open/src/hotspot/share/opto/phaseX.cpp:1741), pid=2538074, tid=2538097
      # assert(t->meet(t0) == t) failed: Not monotonic
      #
      # JRE version: Java(TM) SE Runtime Environment (19.0) (fastdebug build 19-internal-2022-06-02-1355549.emanuel...)
      # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 19-internal-2022-06-02-1355549.emanuel..., mixed mode, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
      # Problematic frame:
      # V [libjvm.so+0x17bee9e] PhaseCCP::analyze()+0x27e
      #
      # An error report file with more information is saved as:
      # /home/emanuel/Documents/fork3-jdk/build/linux-x64-debug/jdk/bin/JTwork/scratch/hs_err_pid2538074.log
      #
      # Compiler replay data is saved as:
      # /home/emanuel/Documents/fork3-jdk/build/linux-x64-debug/jdk/bin/JTwork/scratch/replay_pid2538074.log

      --------------- T H R E A D ---------------

      Current thread (0x00007f1118002af0): JavaThread "C2 CompilerThread5" daemon [_thread_in_native, id=2538097, stack(0x00007f1155c30000,0x00007f1155d31000)]


      Current CompileTask:
      C2: 441 742 jdk.internal.vm.vector.VectorSupport$VectorPayload::getPayload (8 bytes)

      Stack: [0x00007f1155c30000,0x00007f1155d31000], sp=0x00007f1155d2bf40, free space=1007k
      Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
      V [libjvm.so+0x17bee9e] PhaseCCP::analyze()+0x27e
      V [libjvm.so+0xade4df] Compile::Optimize()+0x96f
      V [libjvm.so+0xae0d20] Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x1520
      V [libjvm.so+0x8f7fda] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x62a
      V [libjvm.so+0xaef7e8] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xbb8
      V [libjvm.so+0xaf07d8] CompileBroker::compiler_thread_loop()+0x6f8
      V [libjvm.so+0x1a6d27c] JavaThread::thread_main_inner()+0x23c
      V [libjvm.so+0x1a78760] Thread::call_run()+0x100
      V [libjvm.so+0x172a524] thread_native_entry(Thread*)+0x104


      Run with JTreg (intermittent):
      ~/Documents/jtreg/build/images/jtreg/bin/jtreg -va -s -jdk:/home/emanuel/Documents/fork3-jdk/build/linux-x64-debug/jdk/ -javaoptions:"-XX:TypeProfileLevel=222" /home/emanuel/Documents/fork3-jdk/open/test/hotspot/jtreg/compiler/vectorapi/VectorMemoryAlias.java

      Run replay file (deterministic):
      ./java -XX:+ReplayCompiles -XX:+ReplayIgnoreInitErrors -XX:ReplayDataFile=/home/emanuel/Documents/fork3-jdk/build/linux-x64-debug/jdk/bin/JTwork/scratch/replay_pid2538074.log -XX:TypeProfileLevel=222

        1. hs_err_pid2538074.log
          77 kB
          Emanuel Peter
        2. replay_pid2538074.log
          180 kB
          Emanuel Peter

            epeter Emanuel Peter
            epeter Emanuel Peter
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              Created:
              Updated:
              Resolved: