Hi,

The following test program

--- cut here ---
public class Hello {
public static void main(String[] args) {
System.out.println("Hello, World\n");
}
}
--- cut here ---

When run as follows with a fastdebug build (built from the tip of the hs-comp repo with no patches applied)

/home/ed/images/jdk9-orig-fastdebug/bin/java -Xcomp -XX:-TieredCompilation Hello

generates the following error

# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/matcher.cpp:1572
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/ed/jdk9/hs-comp/hotspot/src/share/vm/opto/matcher.cpp:1572), pid=14902, tid=15054
# assert(false) failed: bad AD file
#
# JRE version: OpenJDK Runtime Environment (9.0) (fastdebug build 9-internal+0-2016-05-17-145011.ed.hs-comp)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 9-internal+0-2016-05-17-145011.ed.hs-comp, compiled mode, compressed oops, g1 gc, linux-aarch64)
# 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/ed/tmp/hasneg/hs_err_pid14902.log
#
# Compiler replay data is saved as:
# /home/ed/tmp/hasneg/replay_pid14902.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#

Here is the full log

o320 StrIndexOf === o335 o7 o353 o354 [[o321 o309 o326 143 ]]

--N: o320 StrIndexOf === o335 o7 o353 o354 [[o321 o309 o326 143 ]]

   --N: o353 Binary === _ o176 o171 [[o320 ]]
   _Binary_iRegP_R1_iRegI_R2 0 _Binary_iRegP_R1_iRegI_R2
   _Binary_iRegP_R3_iRegI_R4 0 _Binary_iRegP_R3_iRegI_R4
   _Binary_iRegP_R1_iRegI_R4 0 _Binary_iRegP_R1_iRegI_R4
   _Binary_iRegP_R3_iRegI_R2 0 _Binary_iRegP_R3_iRegI_R2
   _Binary_iRegP_R1_iRegI_R3 0 _Binary_iRegP_R1_iRegI_R3

      --N: o176 AddP === _ o10 o177 o172 [[o351 o353 ]]
      IREGP 0 IREGP
      IREGPNOSP 0 IREGPNOSP
      IREGP_R0 0 IREGP_R0
      IREGP_R1 0 IREGP_R1
      IREGP_R2 0 IREGP_R2
      IREGP_R3 0 IREGP_R3
      IREGP_R4 0 IREGP_R4
      IREGP_R5 0 IREGP_R5
      IREGP_R10 0 IREGP_R10
      IREGP_FP 0 IREGP_FP
      INLINE_CACHE_REGP 0 INLINE_CACHE_REGP
      INTERPRETER_METHOD_OOP_REGP 0 INTERPRETER_METHOD_OOP_REGP
      THREAD_REGP 0 THREAD_REGP
      LR_REGP 0 LR_REGP
      INDIRECT 0 INDIRECT
      VMEM4 0 INDIRECT
      VMEM8 0 INDIRECT
      VMEM16 0 INDIRECT
      MEMORY 0 INDIRECT

      --N: o171 SubI === _ o12 o344 [[o180 o232 o351 o353 ]]
      IREGI 0 IREGI
      IREGINOSP 0 IREGINOSP
      IREGI_R0 0 IREGI_R0
      IREGI_R2 0 IREGI_R2
      IREGI_R3 0 IREGI_R3
      IREGI_R4 0 IREGI_R4
      IREGIHEAPBASE 0 IREGIHEAPBASE
      IREGIORL2I 0 IREGI

   --N: o354 Binary === _ o178 o119 [[o320 ]]
   _Binary_iRegP_R1_iRegI_R2 0 _Binary_iRegP_R1_iRegI_R2
   _Binary_iRegP_R3_iRegI_R4 0 _Binary_iRegP_R3_iRegI_R4
   _Binary_iRegP_R1_iRegI_R4 0 _Binary_iRegP_R1_iRegI_R4
   _Binary_iRegP_R3_iRegI_R2 0 _Binary_iRegP_R3_iRegI_R2
   _Binary_iRegP_R1_iRegI_R3 0 _Binary_iRegP_R1_iRegI_R3

      --N: o178 AddP === _ o45 o45 o172 [[o352 o354 ]]
      IREGP 0 IREGP
      IREGPNOSP 0 IREGPNOSP
      IREGP_R0 0 IREGP_R0
      IREGP_R1 0 IREGP_R1
      IREGP_R2 0 IREGP_R2
      IREGP_R3 0 IREGP_R3
      IREGP_R4 0 IREGP_R4
      IREGP_R5 0 IREGP_R5
      IREGP_R10 0 IREGP_R10
      IREGP_FP 0 IREGP_FP
      INLINE_CACHE_REGP 0 INLINE_CACHE_REGP
      INTERPRETER_METHOD_OOP_REGP 0 INTERPRETER_METHOD_OOP_REGP
      THREAD_REGP 0 THREAD_REGP
      LR_REGP 0 LR_REGP
      INDIRECT 0 INDIRECT
      VMEM4 0 INDIRECT
      VMEM8 0 INDIRECT
      VMEM16 0 INDIRECT
      MEMORY 0 INDIRECT

      --N: o119 RShiftI === _ o98 o64 [[o303 o296 o288 o232 o127 o225 o202 o352 o354 ]]
      IREGI 0 IREGI
      IREGINOSP 0 IREGINOSP
      IREGI_R0 0 IREGI_R0
      IREGI_R2 0 IREGI_R2
      IREGI_R3 0 IREGI_R3
      IREGI_R4 0 IREGI_R4
      IREGIHEAPBASE 0 IREGIHEAPBASE
      IREGIORL2I 0 IREGI

# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/matcher.cpp:1572
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/ed/jdk9/hs-comp/hotspot/src/share/vm/opto/matcher.cpp:1572), pid=14902, tid=15054
# assert(false) failed: bad AD file
#
# JRE version: OpenJDK Runtime Environment (9.0) (fastdebug build 9-internal+0-2016-05-17-145011.ed.hs-comp)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 9-internal+0-2016-05-17-145011.ed.hs-comp, compiled mode, compressed oops, g1 gc, linux-aarch64)
# 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/ed/tmp/hasneg/hs_err_pid14902.log
#
# Compiler replay data is saved as:
# /home/ed/tmp/hasneg/replay_pid14902.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#