ThrowBug code paths

--------
	gamma -XX:+PrintAssembly -Xbatch -XX:+PrintCompilation -XX:+EnableMethodHandles -cp $BUGDIR ThrowBug
VM option '+PrintAssembly'
VM option '+PrintCompilation'
VM option '+EnableMethodHandles'
OpenJDK Server VM warning: JSR 292 invokedynamic is disabled in this JVM.  Use -XX:+EnableInvokeDynamic to enable.
  1  !b   ThrowBug::catcher (18 bytes)
Loaded disassembler from hsdis-i386.dylib
Decoding compiled method 0x090d44c8:
Code:
[Disassembling for mach='i386(base-hsdis)']
[Entry Point]
[Verified Entry Point]
  0x090d45a0: mov	[esp-0x4000], eax
  0x090d45a7: push	ebp
  0x090d45a8: sub	esp, 0x00000018  ;*synchronization entry
                                        ; - ThrowBug::catcher@-1 (line 33)
  0x090d45ae: mov	ebx, 0x00000154
  0x090d45b3: mov	ecx, [ebx+0x101B6C20]  ;   {oop('ThrowBug')}
  0x090d45b9: mov	ebp, esp
  0x090d45bb: call	0x090ab060      ; OopMap{off=32}
                                        ;*invokevirtual invoke
                                        ; - ThrowBug::catcher@3 (line 33)
                                        ;   {optimized virtual_call}
  0x090d45c0: mov	esp, ebp        ;*invokevirtual invoke
                                        ; - ThrowBug::catcher@3 (line 33)
  0x090d45c2: add	esp, 0x00000018
  0x090d45c5: pop	ebp
  0x090d45c6: test	[0x4C000], eax  ;   {poll_return}
  0x090d45cc: ret
  0x090d45cd: mov	ebx, 0x00000158
  0x090d45d2: inc	[ebx+0x101B6C20]  ;*putstatic catches
                                        ; - ThrowBug::catcher@13 (line 35)
                                        ;   {oop('ThrowBug')}
  0x090d45d8: mov	eax, 0x00000000
  0x090d45dd: jmp	0x090d45c2
  0x090d45df: hlt
[Stub Code]
  0x090d45e0: mov	ebx, 0x00000000  ;   {no_reloc}
  0x090d45e5: jmp	0x090d45e5      ;   {runtime_call}
[Exception Handler]
  0x090d45ea: jmp	0x090d2c60      ;   {runtime_call}
  0x090d45ef: push	0x090d45ef      ;   {section_word}
  0x090d45f4: jmp	0x090abb80      ;   {runtime_call}
[Constants]
  0x090d45f9: int3
  0x090d45fa: int3
  0x090d45fb: int3
  2   b   ThrowBug::thrower (4 bytes)
Decoding compiled method 0x090d46c8:
Code:
[Disassembling for mach='i386(base-hsdis)']
[Entry Point]
[Verified Entry Point]
  0x090d47a0: push	ebp
  0x090d47a1: sub	esp, 8          ;*synchronization entry
                                        ; - ThrowBug::thrower@-1 (line 26)
  0x090d47a7: mov	ebx, 0x00000150
  0x090d47ac: mov	ecx, [ebx+0x101B6C20]  ;*getstatic blintz
                                        ; - ThrowBug::thrower@0 (line 26)
                                        ;   {oop('ThrowBug')}
  0x090d47b2: add	esp, 8
  0x090d47b5: pop	ebp
  0x090d47b6: jmp	0x090d4020      ;   {runtime_call}
  0x090d47bb: hlt
  0x090d47bc: hlt
  0x090d47bd: hlt
  0x090d47be: hlt
  0x090d47bf: hlt
[Exception Handler]
[Stub Code]
  0x090d47c0: jmp	0x090d2c60      ;   {no_reloc}
  0x090d47c5: push	0x090d47c5      ;   {section_word}
  0x090d47ca: jmp	0x090abb80      ;   {runtime_call}
[Constants]
  0x090d47cf: int3
*** MH ret @0x090d45c0: c483e58b
*** MH ret @0x090d45c0: c483e58b
*** MH ret @0x090d45c0: c483e58b
*** MH ret @0x090d45c0: c483e58b
Segmentation fault

Decoding RuntimeStub - _rethrow_Java 0x090d3fc8
[Disassembling for mach='i386(base-hsdis)']
  0x090d4020: push	ebp
  0x090d4021: sub	esp, 0x00000028
  0x090d4027: push	[esp+0x2C]
  0x090d402b: pop	[esp+0xC]
  0x090d402f: mov	ebx, esp
  0x090d4031: shr	ebx, 0x0000000c
  0x090d4034: mov	ebx, [ebx*4+0x4D57E20]
  0x090d403b: mov	[ebx+0x118], esp
  0x090d4041: mov	[esp+0x10], ebx
  0x090d4045: mov	[esp], ecx
  0x090d4048: mov	[esp+0x4], ebx
  0x090d404c: push	[esp+0xC]
  0x090d4050: pop	[esp+0x8]
  0x090d4054: call	0x04a3ffe0
  0x090d4059: mov	ecx, eax
  0x090d405b: mov	ebp, [esp+0x10]
  0x090d405f: mov	[ebp+0x118], 0x00000000
  0x090d4069: mov	ebx, ebp
  0x090d406b: mov	[ebx+0x11C], 0x00000000
  0x090d4075: mov	eax, [ebx+0x144]
  0x090d407b: mov	[ebx+0x144], 0x00000000
  0x090d4085: mov	ebp, [ebx+0x4]
  0x090d4088: test	ebp, ebp
  0x090d408a: jnz	0x090d4093
  0x090d408c: add	esp, 0x00000028
  0x090d408f: pop	ebp
  0x090d4090: pop	edx
  0x090d4091: jmp	ecx
  0x090d4093: mov	ecx, Stub::forward exception
  0x090d4098: mov	ebx, 0x00000000
  0x090d409d: add	esp, 0x00000028
  0x090d40a0: pop	ebp
  0x090d40a1: jmp	ecx
  0x090d40a3: int3

StubRoutines::forward exception [0x090002c0, 0x0900032a[ (106 bytes)
[Disassembling for mach='i386(base-hsdis)']
  0x090002c0: mov	ecx, esp
  0x090002c2: shr	ecx, 0x0000000c
  0x090002c5: mov	ecx, [ecx*4+0x4D57E20]
  0x090002cc: cmp	[ecx+0x4], 0x00000000
  0x090002d3: jnz	0x090002ea
  0x090002d9: push	0x04c68dd0
  0x090002de: call	0x090002e3
  0x090002e3: pusha
  0x090002e4: call	0x0439b874
  0x090002e9: hlt
  0x090002ea: mov	eax, [esp]
  ;; call exception_handler_for_return_address
  0x090002ed: push	eax
  0x090002ee: call	0x04a4bcc8
  0x090002f3: add	esp, 4
  0x090002f6: mov	ebx, eax
  0x090002f8: mov	ecx, esp
  0x090002fa: shr	ecx, 0x0000000c
  0x090002fd: mov	ecx, [ecx*4+0x4D57E20]
  0x09000304: pop	edx
  0x09000305: mov	eax, [ecx+0x4]
  0x09000308: mov	[ecx+0x4], 0x00000000
  0x0900030f: test	eax, eax
  0x09000311: jnz	0x09000328
  0x09000317: push	0x04c68e38
  0x0900031c: call	0x09000321
  0x09000321: pusha
  0x09000322: call	0x0439b874
  0x09000327: hlt
  0x09000328: jmp	ebx

--------


--------
	gamma -XX:+PrintAssembly -Xbatch -XX:+PrintCompilation -XX:+EnableMethodHandles -cp $BUGDIR ThrowBug
VM option '+PrintAssembly'
VM option '+PrintCompilation'
VM option '+EnableMethodHandles'
OpenJDK Server VM warning: JSR 292 invokedynamic is disabled in this JVM.  Use -XX:+EnableInvokeDynamic to enable.
  1  !b   ThrowBug::catcher (18 bytes)
Could not load hsdis-i386.dylib; library not loadable; PrintAssembly is disabled
PrintAssembly request changed to PrintOptoAssembly
{method} 
 - klass: {other class}
 - method holder:     'ThrowBug'
 - constants:         0x04b7a7d0{constant pool}
 - access:            0x81000008  static 
 - name:              'catcher'
 - signature:         '(Ljava/dyn/MethodHandle;)Ljava/lang/Object;'
 - max stack:         2
 - max locals:        2
 - size of params:    1
 - method size:       20
 - vtable index:      -2
 - i2i entry:         0x0900b840
 - adapter:           0x0010fb78
 - compiled entry     0x090b2da8
 - code size:         18
 - code start:        0x101b6b08
 - code end (excl):   0x101b6b1a
 - method data:       0x101cb528
 - checked ex length: 0
 - linenumber start:  0x101b6b1a
 - localvar length:   0
#
#  java/lang/Object * ( java/dyn/MethodHandle * )
#
#r000 ecx   : parm 0: java/dyn/MethodHandle *
# -- Old esp -- Framesize: 32 --
#r045 esp+28: return address
#r044 esp+24: pad2, in_preserve
#r043 esp+20: pad2, in_preserve
#r042 esp+16: Fixed slot 0
#r049 esp+12: spill
#r048 esp+ 8: outgoing argument
#r047 esp+ 4: outgoing argument
#r046 esp+ 0: outgoing argument
#
abababab   N1: #	B1 <- B2  Freq: 1
abababab
000   B1: #	B3 B2 <- BLOCK HEAD IS JUNK   Freq: 1
000   	# stack bang
	PUSHL  EBP
	SUB    ESP,24	# Create frame
00e   	MOV    EBX,#340
013   	MOV    ECX,[EBX + precise klass ThrowBug: 0x000e50d0:Constant:exact *] ! Field ThrowBug.THROWER
019   	CALL,static/MethodHandle  java.dyn.MethodHandle::invoke
        # ThrowBug::catcher @ bci:3  L[0]=_ L[1]=_
        # OopMap{off=32}
022
022   B2: #	N1 <- B1 B3  Freq: 0.99999
022   	ADD    ESP,24	# Destroy frame
	POPL   EBP
	TEST   PollPage,EAX	! Poll Safepoint
	
02c   	RET
02c
02d   B3: #	B2 <- B1  Freq: 1e-05
02d   	MOV    EBX,#344
032   	INC    [EBX + precise klass ThrowBug: 0x000e50d0:Constant:exact *] ! Field ThrowBug.catches
038   	MOV    EAX,NULL
03d   	JMP,s  B2
03d

  2   b   ThrowBug::thrower (4 bytes)
PrintAssembly request changed to PrintOptoAssembly
{method} 
 - klass: {other class}
 - method holder:     'ThrowBug'
 - constants:         0x04b7a7d0{constant pool}
 - access:            0x81000008  static 
 - name:              'thrower'
 - signature:         '()Ljava/lang/Object;'
 - max stack:         1
 - max locals:        0
 - size of params:    0
 - method size:       20
 - vtable index:      -2
 - i2i entry:         0x0900b840
 - adapter:           0x0010f9f8
 - compiled entry     0x090aaa25
 - code size:         4
 - code start:        0x101b6a40
 - code end (excl):   0x101b6a44
 - method data:       0x101cb598
 - checked ex length: 1
 - checked ex start:  0x101b6a4c
 - linenumber start:  0x101b6a44
 - localvar length:   0
#
#  java/lang/Object * (  )
#
# -- Old esp -- Framesize: 16 --
#r045 esp+12: return address
#r044 esp+ 8: pad2, in_preserve
#r043 esp+ 4: pad2, in_preserve
#r042 esp+ 0: Fixed slot 0
#
abababab   N1: #	B1 <- B1  Freq: 1
abababab
000   B1: #	N1 <- BLOCK HEAD IS JUNK   Freq: 1
000   	PUSHL  EBP
	SUB    ESP,8	# Create frame
007   	MOV    EBX,#336
00c   	MOV    ECX,[EBX + precise klass ThrowBug: 0x004f20d0:Constant:exact *] ! Field ThrowBug.blintz
012   	ADD    ESP,8	# Destroy frame
	POPL   EBP
	
016   	JMP    rethrow_stub
016

*** MH ret @0x090d45c0: c483e58b
*** MH ret @0x090d45c0: c483e58b
*** MH ret @0x090d45c0: c483e58b
*** MH ret @0x090d45c0: c483e58b
Segmentation fault

  1  !b   ThrowBug::catcher (18 bytes)

Decoding ExceptionBlob@0x090d2c60 0x090d2c08
[Disassembling for mach='i386(base-hsdis)']
  0x090d2c60: push	edx
  0x090d2c61: sub	esp, 8
  0x090d2c64: mov	[esp+0x4], ebp
  0x090d2c68: mov	ecx, esp
  0x090d2c6a: shr	ecx, 0x0000000c
  0x090d2c6d: mov	ecx, [ecx*4+0x4D57E20]
  0x090d2c74: mov	[ecx+0x178], eax
  0x090d2c7a: mov	[ecx+0x17C], edx
  0x090d2c80: mov	[esp], ecx
  0x090d2c83: mov	[ecx+0x118], esp
  0x090d2c89: call	0x04a42462
  0x090d2c8e: mov	ecx, esp
  0x090d2c90: shr	ecx, 0x0000000c
  0x090d2c93: mov	ecx, [ecx*4+0x4D57E20]
  0x090d2c9a: mov	[ecx+0x118], 0x00000000
  0x090d2ca4: mov	ebp, [esp+0x4]
  0x090d2ca8: add	esp, 8
  0x090d2cab: pop	edx
  0x090d2cac: push	eax
  0x090d2cad: mov	ecx, esp
  0x090d2caf: shr	ecx, 0x0000000c
  0x090d2cb2: mov	ecx, [ecx*4+0x4D57E20]
  0x090d2cb9: mov	eax, [ecx+0x178]
  0x090d2cbf: mov	edx, [ecx+0x17C]
  0x090d2cc5: mov	[ecx+0x180], 0x00000000
  0x090d2ccf: mov	[ecx+0x17C], 0x00000000
  0x090d2cd9: mov	[ecx+0x178], 0x00000000
  0x090d2ce3: pop	ecx
  0x090d2ce4: jmp	ecx
  0x090d2ce6: int3
  0x090d2ce7: int3