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  1. JDK
  2. JDK-8330213

RISC-V: C2: assert(false) failed: bad AD file after JDK-8316991

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    • b19
    • riscv
    • linux

    Description

      We witnessed more C2 conditional moves after JDK-8316991 which reduces merges used by CmpP/N and CastPP.
      But we are still lacking match rules for conditional moves like:
        match(Set dst (CMoveI (Binary cop (CmpN op1 op2)) (Binary dst src)))
        match(Set dst (CMoveI (Binary cop (CmpP op1 op2)) (Binary dst src)));

      How to reproduce the crash:

      Run following jtreg tests with fastdebug build on linux-riscv64 platform (not reproducible with release build):

      1.
        make test TEST="compiler/eliminateAutobox/TestDoubleBoxing.java"
        make test TEST="compiler/eliminateAutobox/TestFloatBoxing.java"

      o281  Binary  === _ o278 o251  [[ o279 ]]

      --N: o281  Binary  === _ o278 o251  [[ o279 ]]

         --N: o278  Bool  === _ o251  [[ o281 ]] [eq]
         CMPOP  1  CMPOP
         CMPOPU  1  CMPOPU
         CMPOPEQNE  0  CMPOPEQNE
         CMPOPUEQNELEGT  0  CMPOPUEQNELEGT

         --N: o251  CmpP  === _ o29 o107  [[ o252 o278 o253 o281 ]]
         _CmpP_iRegP_iRegP  100  _CmpP_iRegP_iRegP
         _CmpP_iRegP_immP0  0  _CmpP_iRegP_immP0

            --N: o29  Proj  === o24  [[ o276 o251 o262 o262 ]] #5  Oop:java/lang/Double (java/io/Serializable,java/lang/Comparable,java/lang/constant/Constable,java/lang/constant/ConstantDesc):exact *
            IREGP  0  IREGP
            IREGPNOSP  0  IREGPNOSP
            IREGP_R10  0  IREGP_R10
            IREGP_R11  0  IREGP_R11
            IREGP_R12  0  IREGP_R12
            IREGP_R13  0  IREGP_R13
            IREGP_R14  0  IREGP_R14
            IREGP_R15  0  IREGP_R15
            IREGP_R28  0  IREGP_R28
            IREGP_R30  0  IREGP_R30
            IREGP_R31  0  IREGP_R31
            JAVATHREAD_REGP  0  JAVATHREAD_REGP
            INDIRECT  0  INDIRECT
            INLINE_CACHE_REGP  0  INLINE_CACHE_REGP
            MEMORY  0  INDIRECT
            IREGNORP  0  IREGP
            IREGILNP  0  IREGP
            IREGILNPNOSP  0  IREGPNOSP
            VMEMA  0  INDIRECT

            --N: o107  ConP  === o0  [[ o276 o116 o251 4 ]]  #null
            IMMP  0  IMMP
            IMMP0  0  IMMP0
            IREGP  100  loadConP0
            IREGPNOSP  100  loadConP0
            IREGP_R10  100  loadConP0
            IREGP_R11  100  loadConP0
            IREGP_R12  100  loadConP0
            IREGP_R13  100  loadConP0
            IREGP_R14  100  loadConP0
            IREGP_R15  100  loadConP0
            IREGP_R28  100  loadConP0
            IREGP_R30  100  loadConP0
            IREGP_R31  100  loadConP0
            JAVATHREAD_REGP  100  loadConP0
            INDIRECT  100  loadConP0
            INLINE_CACHE_REGP  100  loadConP0
            MEMORY  100  INDIRECT
            IREGNORP  100  IREGP
            IREGILNP  100  IREGP
            IREGILNPNOSP  100  IREGPNOSP
            VMEMA  100  INDIRECT

      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      #  Internal Error (/home/sipeed/jdk/src/hotspot/share/opto/matcher.cpp:1727), pid=361457, tid=361473
      #  assert(false) failed: bad AD file
      #
      # JRE version: OpenJDK Runtime Environment (23.0) (fastdebug build 23-internal-adhoc.sipeed.jdk)
      # Java VM: OpenJDK 64-Bit Server VM (fastdebug 23-internal-adhoc.sipeed.jdk, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-riscv64)
      # Problematic frame:
      # V  [libjvm.so+0xf13dd8]  Matcher::Label_Root(Node const*, State*, Node*, Node*&)+0x606
      #
      # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
      #
      # An error report file with more information is saved as:
      # /home/sipeed/jdk/build/linux-riscv64-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_tier1/scratch/1/hs_err_pid361457.log
      #
      # Compiler replay data is saved as:
      # /home/sipeed/jdk/build/linux-riscv64-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_tier1/scratch/1/replay_pid361457.log
      #
      # If you would like to submit a bug report, please visit:
      #   https://bugreport.java.com/bugreport/crash.jsp
      #

      2.
        make test TEST="compiler/eliminateAutobox/TestLongBoxing.java"
        make test TEST="compiler/eliminateAutobox/TestIntBoxing.java"
        make test TEST="compiler/eliminateAutobox/TestShortBoxing.java"

      o497  Binary  === _ o436 o494  [[ o437 ]]

      --N: o497  Binary  === _ o436 o494  [[ o437 ]]

         --N: o436  Bool  === _ o494  [[ o497 ]] [eq]
         CMPOP  1  CMPOP
         CMPOPU  1  CMPOPU
         CMPOPEQNE  0  CMPOPEQNE
         CMPOPUEQNELEGT  0  CMPOPUEQNELEGT

         --N: o494  CmpN  === _ o242 o493  [[ o436 o409 o410 o497 ]]
         _CmpN_iRegN_iRegN  100  _CmpN_iRegN_iRegN
         _CmpN_iRegN_immN0  0  _CmpN_iRegN_immN0

            --N: o242  LoadN  === o227 o27 o240  [[ o496 o494 ]]  @narrowoop: java/lang/Object *[int:>=0] (java/lang/Cloneable,java/io/Serializable)+any * [narrow], idx=4; #narrowoop: java/lang/Long (java/io/Serializable,java/lang/Comparable,java/lang/constant/Constable,java/lang/constant/ConstantDesc):exact *
            IREGN  0  IREGN
            IREGNNOSP  0  IREGNNOSP
            IREGNORP  0  IREGN
            IREGILNP  0  IREGN
            IREGILNPNOSP  0  IREGNNOSP

            --N: o493  ConN  === o0  [[ o494 ]]  #narrowoop: null
            IMMN  0  IMMN
            IMMN0  0  IMMN0
            IREGN  100  loadConN0
            IREGNNOSP  100  loadConN0
            IREGNORP  100  IREGN
            IREGILNP  100  IREGN
            IREGILNPNOSP  100  IREGNNOSP

      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      #  Internal Error (/home/sipeed/jdk/src/hotspot/share/opto/matcher.cpp:1727), pid=361713, tid=361739
      #  assert(false) failed: bad AD file
      #
      # JRE version: OpenJDK Runtime Environment (23.0) (fastdebug build 23-internal-adhoc.sipeed.jdk)
      # Java VM: OpenJDK 64-Bit Server VM (fastdebug 23-internal-adhoc.sipeed.jdk, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-riscv64)
      # Problematic frame:
      # V  [libjvm.so+0xf13dd8]  Matcher::Label_Root(Node const*, State*, Node*, Node*&)+0x606
      #
      # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
      #
      # An error report file with more information is saved as:
      # /home/sipeed/jdk/build/linux-riscv64-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_tier1/scratch/0/hs_err_pid361713.log
      #
      # Compiler replay data is saved as:
      # /home/sipeed/jdk/build/linux-riscv64-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_tier1/scratch/0/replay_pid361713.log
      #
      # If you would like to submit a bug report, please visit:
      #   https://bugreport.java.com/bugreport/crash.jsp
      #

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              fjiang Feilong Jiang
              fyang Fei Yang
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                Updated:
                Resolved: