OpenJDK 64-Bit Server VM warning: printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output
Compiled method (c2)     279   11             TestString::bar (14 bytes)
 total in heap  [0x0000007fa10eaa90,0x0000007fa10ead68] = 728
 relocation     [0x0000007fa10eabb0,0x0000007fa10eabc0] = 16
 main code      [0x0000007fa10eabc0,0x0000007fa10eac40] = 128
 stub code      [0x0000007fa10eac40,0x0000007fa10eac50] = 16
 oops           [0x0000007fa10eac50,0x0000007fa10eac58] = 8
 metadata       [0x0000007fa10eac58,0x0000007fa10eac70] = 24
 scopes data    [0x0000007fa10eac70,0x0000007fa10eacb8] = 72
 scopes pcs     [0x0000007fa10eacb8,0x0000007fa10ead48] = 144
 dependencies   [0x0000007fa10ead48,0x0000007fa10ead50] = 8
 nul chk table  [0x0000007fa10ead50,0x0000007fa10ead68] = 24
Loaded disassembler from /home/shihui/openjdk-1.9.0-internal/lib/aarch64/server/hsdis-aarch64.so
Decoding compiled method 0x0000007fa10eaa90:
Code:
[Disassembling for mach='aarch64']
[Entry Point]
[Verified Entry Point]
[Constants]
  # {method} {0x0000007e90f76400} 'bar' '(Ljava/lang/String;)I' in 'TestString'
  # parm0:    c_rarg1:c_rarg1 
                        = 'java/lang/String'
  #           [sp+0x20]  (sp of caller)
  0x0000007fa10eabc0: nop
  0x0000007fa10eabc4: orr       x9, xzr, #0xffffffffffffc000
  0x0000007fa10eabc8: str       xzr, [sp,x9]
  0x0000007fa10eabcc: sub       sp, sp, #0x20
  0x0000007fa10eabd0: stp       x29, x30, [sp,#16]  ;*synchronization entry
                                                ; - TestString::bar@-1 (line 12)

  0x0000007fa10eabd4: ldr       w11, [x1,#12]   ; implicit exception: dispatches to 0x0000007fa10eabf4
  0x0000007fa10eabd8: lsl       x10, x11, #3    ;*getfield value
                                                ; - java.lang.String::<init>@6 (line 158)
                                                ; - TestString::bar@5 (line 12)

  0x0000007fa10eabdc: ldr       w0, [x10,#12]   ;*arraylength
                                                ; - java.lang.String::length@4 (line 630)
                                                ; - TestString::bar@10 (line 13)
                                                ; implicit exception: dispatches to 0x0000007fa10eac00
  0x0000007fa10eabe0: ldp       x29, x30, [sp,#16]
  0x0000007fa10eabe4: add       sp, sp, #0x20
  0x0000007fa10eabe8: adrp      x8, 0x0000007faa451000
                                                ;   {poll_return}
  0x0000007fa10eabec: ldr       wzr, [x8]       ;   {poll_return}
  0x0000007fa10eabf0: ret
  0x0000007fa10eabf4: mov       w1, #0xfffffff6                 // #-10
  0x0000007fa10eabf8: bl        0x0000007fa107f080  ; ImmutableOopMap{}
                                                ;*getfield value
                                                ; - java.lang.String::<init>@6 (line 158)
                                                ; - TestString::bar@5 (line 12)
                                                ;   {runtime_call UncommonTrapBlob}
  0x0000007fa10eabfc: brk       #0x3e7          ;*getfield value
                                                ; - java.lang.String::<init>@6 (line 158)
                                                ; - TestString::bar@5 (line 12)

  0x0000007fa10eac00: mov       w1, #0xfffffff6                 // #-10
  0x0000007fa10eac04: bl        0x0000007fa107f080  ; ImmutableOopMap{}
                                                ;*arraylength
                                                ; - java.lang.String::length@4 (line 630)
                                                ; - TestString::bar@10 (line 13)
                                                ;   {runtime_call UncommonTrapBlob}
  0x0000007fa10eac08: brk       #0x3e7          ;*arraylength
                                                ; - java.lang.String::length@4 (line 630)
                                                ; - TestString::bar@10 (line 13)

  0x0000007fa10eac0c: .inst     0x00000000 ; undefined
  0x0000007fa10eac10: .inst     0x00000000 ; undefined
  0x0000007fa10eac14: .inst     0x00000000 ; undefined
  0x0000007fa10eac18: .inst     0x00000000 ; undefined
  0x0000007fa10eac1c: .inst     0x00000000 ; undefined
  0x0000007fa10eac20: .inst     0x00000000 ; undefined
  0x0000007fa10eac24: .inst     0x00000000 ; undefined
  0x0000007fa10eac28: .inst     0x00000000 ; undefined
  0x0000007fa10eac2c: .inst     0x00000000 ; undefined
  0x0000007fa10eac30: .inst     0x00000000 ; undefined
  0x0000007fa10eac34: .inst     0x00000000 ; undefined
  0x0000007fa10eac38: .inst     0x00000000 ; undefined
  0x0000007fa10eac3c: .inst     0x00000000 ; undefined
[Exception Handler]
[Stub Code]
  0x0000007fa10eac40: b 0x0000007fa10dd180      ;   {no_reloc}
[Deopt Handler Code]
  0x0000007fa10eac44: adr       x30, 0x0000007fa10eac44
  0x0000007fa10eac48: b 0x0000007fa10b3780      ;   {runtime_call DeoptimizationBlob}
  0x0000007fa10eac4c: .inst     0x00000000 ; undefined