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  1. JDK
  2. JDK-8340454

C2 EA asserts with "previous reducible Phi is no longer reducible before SUT"

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      4096 157 b 4 org.springframework.core.convert.support.CollectionToCollectionConverter::convert (197 bytes)
          0 Root === 0 39 62 76 115 133 152 211 236 254 308 358 457 559 750 766 787 820 922 957 1012 1023 1034 1290 1289 1279 1147 1162 1176 1229 1262 [[ 0 1 3 25 34 1189 43 44 48 57 71 78 81 97 117 128 1363 197 221 241 360 392 1200 1057 1029 1018 578 596 621 1007 698 713 738 952 839 865 871 1370 1371 ]]
        406 Proj === 394 [[ 407 411 ]] #5 !jvms: TypeDescriptor::getElementTypeDescriptor @ bci:10 (line 335) CollectionToCollectionConverter::convert @ bci:48 (line 75)
        408 Proj === 407 [[ 450 411 ]] #0 !jvms: TypeDescriptor::getElementTypeDescriptor @ bci:10 (line 335) CollectionToCollectionConverter::convert @ bci:48 (line 75)
       1263 IfFalse === 1254 [[ 318 ]] #0 !jvms: TypeDescriptor::getRelatedIfResolvable @ bci:4 (line 724) TypeDescriptor::getElementTypeDescriptor @ bci:84 (line 340) CollectionToCollectionConverter::convert @ bci:48 (line 75)
        704 Proj === 703 [[ 318 ]] #0 !jvms: TypeDescriptor::<init> @ bci:-1 (line 125) TypeDescriptor::getElementTypeDescriptor @ bci:26 (line 335) CollectionToCollectionConverter::convert @ bci:48 (line 75)
         25 ConP === 0 [[ 26 64 72 104 111 120 225 232 347 354 446 453 1269 322 489 1252 1225 1351 1143 1136 809 816 548 555 600 918 911 739 746 754 ]] #null
        411 CheckCastPP === 408 406 [[ 703 699 653 699 623 623 623 618 466 466 618 537 537 322 489 489 ]] #org/springframework/core/convert/TypeDescriptor (java/io/Serializable):NotNull:exact * Oop:org/springframework/core/convert/TypeDescriptor (java/io/Serializable):NotNull:exact * !jvms: TypeDescriptor::getElementTypeDescriptor @ bci:10 (line 335) CollectionToCollectionConverter::convert @ bci:48 (line 75)
        318 Region === 318 704 1263 [[ 318 322 319 320 1271 ]] !jvms: CollectionToCollectionConverter::convert @ bci:48 (line 75)
        322 Phi === 318 411 25 [[ 1275 1275 1269 ]] #org/springframework/core/convert/TypeDescriptor (java/io/Serializable):exact * Oop:org/springframework/core/convert/TypeDescriptor (java/io/Serializable):exact * !jvms: CollectionToCollectionConverter::convert @ bci:48 (line 75)
        322 Phi === 318 411 25 [[ 1275 1275 1269 ]] #org/springframework/core/convert/TypeDescriptor (java/io/Serializable):exact * Oop:org/springframework/core/convert/TypeDescriptor (java/io/Serializable):exact * !jvms: CollectionToCollectionConverter::convert @ bci:48 (line 75)
       1275 CallStaticJava === 1274 319 320 8 9 (34 10 54 12 77 54 44 322 1 1 1 1 322 ) [[ 1276 ]] # Static uncommon_trap(reason='unstable_if' action='reinterpret' debug_id='0') void ( int ) C=0.000100 CollectionToCollectionConverter::convert @ bci:55 (line 76) reexecute !jvms: CollectionToCollectionConverter::convert @ bci:55 (line 76)
       1269 CmpP === _ 322 25 [[ 1270 ]] !jvms: CollectionToCollectionConverter::convert @ bci:55 (line 76)
       1276 Proj === 1275 [[ 1279 ]] #0 !jvms: CollectionToCollectionConverter::convert @ bci:55 (line 76)
       1270 Bool === _ 1269 [[ 1271 ]] [ne] !jvms: CollectionToCollectionConverter::convert @ bci:55 (line 76)
      Can NOT reduce Phi 322 on invocation 0. No SR Allocate as input.
      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/opt/mach5/mesos/work_dir/slaves/7a20d425-e769-4142-b5c1-e3cc2d88e03e-S17105/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/0bf0bce7-7ba3-45ac-a25b-a3d9ebb91b4e/runs/af53efcd-4323-42dd-bb8a-98a4496bca96/workspace/open/src/hotspot/share/opto/escape.cpp:385), pid=3744273, tid=3744288
      # assert(can_reduce_phi(n->as_Phi())) failed: Sanity: previous reducible Phi is no longer reducible before SUT.
      #
      # JRE version: Java(TM) SE Runtime Environment (24.0+18) (fastdebug build 24-ea+18-2073)
      # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 24-ea+18-2073, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
      # Problematic frame:
      # V [libjvm.so+0xc06a44] ConnectionGraph::compute_escape()+0x2324

      Current CompileTask:
      C2:4104 157 b 4 org.springframework.core.convert.support.CollectionToCollectionConverter::convert (197 bytes)

      Stack: [0x0000778db1000000,0x0000778db1100000], sp=0x0000778db10facb0, free space=1003k
      Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
      V [libjvm.so+0xc06a44] ConnectionGraph::compute_escape()+0x2324 (escape.cpp:385)
      V [libjvm.so+0xc07061] ConnectionGraph::do_analysis(Compile*, PhaseIterGVN*)+0xf1
      V [libjvm.so+0xa2c02a] Compile::Optimize()+0x63a
      V [libjvm.so+0xa2ffd0] Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x1b80
      V [libjvm.so+0x878bc5] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x1d5
      V [libjvm.so+0xa3bcd8] CompileBroker::invoke_compiler_on_method(CompileTask*)+0x928
      V [libjvm.so+0xa3c968] CompileBroker::compiler_thread_loop()+0x478
      V [libjvm.so+0xeedc7c] JavaThread::thread_main_inner()+0xcc
      V [libjvm.so+0x1813a86] Thread::call_run()+0xb6
      V [libjvm.so+0x14f8ee7] thread_native_entry(Thread*)+0x127
      C [libc.so.6+0x9ca94]

        1. hs_err_pid81583.log
          121 kB
        2. replay_pid1300147.log
          1.29 MB
        3. jars.zip
          45.15 MB
        4. hs_err_pid1300147.log
          144 kB

            cslucas Cesar Soares
            thartmann Tobias Hartmann
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              Created:
              Updated: