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G_M13954_IG01:

push r14

push rdi

push rsi

push rbp

push rbx

sub rsp, 32

sub rsp, 48

mov rbx, rcx

mov rsi, rdx

mov rbp, r8

mov edi, r9d

;; size=22 bbWeight=1 PerfScore 6.25

G_M13954_IG02:

test rsi, rsi

je G_M13954_IG09

mov rcx, 0xD1FFAB1E ; System.Threading.TimerQueueTimer

call CORINFO_HELP_NEWSFAST

mov r14, rax

lea rcx, bword ptr [r14+20H]

mov rdx, rsi

call CORINFO_HELP_ASSIGN_REF

lea rcx, bword ptr [r14+28H]

mov rdx, rbp

call CORINFO_HELP_ASSIGN_REF

mov dword ptr [r14+48H], -1

mov dword ptr [r14+4CH], -1

call [System.Threading.ExecutionContext:Capture():System.Threading.ExecutionContext]

lea rcx, bword ptr [r14+30H]

mov rdx, rax

call CORINFO_HELP_ASSIGN_REF

mov rcx, 0xD1FFAB1E ; const ptr

mov rsi, gword ptr [rcx]

mov rbp, rsi

mov rcx, 0xD1FFAB1E

mov edx, 725

call CORINFO_HELP_GETSHARED_NONGCTHREADSTATIC_BASE_NOCTOR

mov edx, dword ptr [rax+09A4H]

mov ecx, dword ptr [rax+09A4H]

lea ecx, [rdx-01H]

lea edx, [rcx-01H]

mov dword ptr [rax+09A4H], ecx

mov dword ptr [rax+09A4H], edx

test edx, 0xFFFF

test ecx, 0xFFFF

jne SHORT G_M13954_IG04

;; size=144 bbWeight=1 PerfScore 21.75

;; size=141 bbWeight=1 PerfScore 21.50

G_M13954_IG03:

call [System.Threading.ProcessorIdCache:RefreshCurrentProcessorId():int]

mov ecx, eax

mov dword ptr [rsp+2CH], ecx

jmp SHORT G_M13954_IG05

;; size=8 bbWeight=0.50 PerfScore 2.50

;; size=14 bbWeight=0.50 PerfScore 3.12

G_M13954_IG04:

mov eax, edx

sar ecx, 16

sar eax, 16

mov dword ptr [rsp+2CH], ecx

;; size=5 bbWeight=0.50 PerfScore 0.38

;; size=7 bbWeight=0.50 PerfScore 0.75

G_M13954_IG05:

lea rcx, bword ptr [r14+08H]

mov r8d, dword ptr [rsi+08H]

mov edx, 0xD1FFAB1E

cdq

mov r8d, dword ptr [rsp+2CH]

idiv edx:eax, r8d

mov eax, edx

cmp edx, r8d

imul edx:eax, r8d

jae SHORT G_M13954_IG10

mov eax, edx

mov edx, edx

shr eax, 31

mov rdx, gword ptr [rbp+8*rdx+10H]

sar edx, 1

add edx, eax

lea edx, [rdx+2*rdx]

shl edx, 2

sub r8d, edx

cmp r8d, 12

jae G_M13954_IG10

mov edx, r8d

mov rdx, gword ptr [rsi+8*rdx+10H]

call CORINFO_HELP_ASSIGN_REF

cmp edi, -1

je SHORT G_M13954_IG07

;; size=34 bbWeight=1 PerfScore 33.75

;; size=65 bbWeight=1 PerfScore 13.50

G_M13954_IG06:

mov rcx, r14

mov edx, edi

mov r8d, dword ptr [rsp+70H]

mov r8d, dword ptr [rsp+80H]

mov r9d, 1

call [System.Threading.TimerQueueTimer:Change(uint,uint,bool):bool:this]

;; size=22 bbWeight=0.50 PerfScore 2.38

;; size=25 bbWeight=0.50 PerfScore 2.38

G_M13954_IG07:

mov rcx, 0xD1FFAB1E ; System.Threading.TimerHolder

call CORINFO_HELP_NEWFAST

mov rsi, rax

lea rcx, bword ptr [rsi+08H]

mov rdx, r14

call CORINFO_HELP_ASSIGN_REF

lea rcx, bword ptr [rbx+08H]

mov rdx, rsi

call CORINFO_HELP_ASSIGN_REF

nop

;; size=43 bbWeight=1 PerfScore 5.25

G_M13954_IG08:

add rsp, 32

add rsp, 48

pop rbx

pop rbp

pop rsi

pop rdi

pop r14

ret

;; size=11 bbWeight=1 PerfScore 3.75

G_M13954_IG09:

mov ecx, 0x1678E

mov rdx, 0xD1FFAB1E

call CORINFO_HELP_STRCNS

mov rcx, rax

call [System.ArgumentNullException:Throw(System.String)]

int3

;; size=30 bbWeight=0 PerfScore 0.00

G_M13954_IG10:

call CORINFO_HELP_RNGCHKFAIL

int3

;; size=6 bbWeight=0 PerfScore 0.00

; Total bytes of code 325, prolog size 10, PerfScore 108.50, instruction count 83, allocated bytes for code 325 (MethodHash=3f9bc97d) for method System.Threading.Timer:.ctor(System.Threading.TimerCallback,System.Object,uint,uint):this

; Total bytes of code 364, prolog size 10, PerfScore 92.90, instruction count 92, allocated bytes for code 364 (MethodHash=3f9bc97d) for method System.Threading.Timer:.ctor(System.Threading.TimerCallback,System.Object,uint,uint):this

; ============================================================

Saved diffs

Original text

Open file

G_M13954_IG01:
       push     r14
       push     rdi
       push     rsi
       push     rbp
       push     rbx
       sub      rsp, 32
       mov      rbx, rcx
       mov      rsi, rdx
       mov      rbp, r8
       mov      edi, r9d
						;; size=22 bbWeight=1    PerfScore 6.25
G_M13954_IG02:
       test     rsi, rsi
       je       G_M13954_IG09
       mov      rcx, 0xD1FFAB1E      ; System.Threading.TimerQueueTimer
       call     CORINFO_HELP_NEWSFAST
       mov      r14, rax
       lea      rcx, bword ptr [r14+20H]
       mov      rdx, rsi
       call     CORINFO_HELP_ASSIGN_REF
       lea      rcx, bword ptr [r14+28H]
       mov      rdx, rbp
       call     CORINFO_HELP_ASSIGN_REF
       mov      dword ptr [r14+48H], -1
       mov      dword ptr [r14+4CH], -1
       call     [System.Threading.ExecutionContext:Capture():System.Threading.ExecutionContext]
       lea      rcx, bword ptr [r14+30H]
       mov      rdx, rax
       call     CORINFO_HELP_ASSIGN_REF
       mov      rcx, 0xD1FFAB1E      ; const ptr
       mov      rsi, gword ptr [rcx]
       mov      rbp, rsi
       mov      rcx, 0xD1FFAB1E
       mov      edx, 725
       call     CORINFO_HELP_GETSHARED_NONGCTHREADSTATIC_BASE_NOCTOR
       mov      edx, dword ptr [rax+09A4H]
       lea      ecx, [rdx-01H]
       mov      dword ptr [rax+09A4H], ecx
       test     edx, 0xFFFF
       jne      SHORT G_M13954_IG04
						;; size=144 bbWeight=1    PerfScore 21.75
G_M13954_IG03:
       call     [System.Threading.ProcessorIdCache:RefreshCurrentProcessorId():int]
       jmp      SHORT G_M13954_IG05
						;; size=8 bbWeight=0.50 PerfScore 2.50
G_M13954_IG04:
       mov      eax, edx
       sar      eax, 16
						;; size=5 bbWeight=0.50 PerfScore 0.38
G_M13954_IG05:
       lea      rcx, bword ptr [r14+08H]
       mov      r8d, dword ptr [rsi+08H]
       cdq      
       idiv     edx:eax, r8d
       cmp      edx, r8d
       jae      SHORT G_M13954_IG10
       mov      edx, edx
       mov      rdx, gword ptr [rbp+8*rdx+10H]
       call     CORINFO_HELP_ASSIGN_REF
       cmp      edi, -1
       je       SHORT G_M13954_IG07
						;; size=34 bbWeight=1    PerfScore 33.75
G_M13954_IG06:
       mov      rcx, r14
       mov      edx, edi
       mov      r8d, dword ptr [rsp+70H]
       mov      r9d, 1
       call     [System.Threading.TimerQueueTimer:Change(uint,uint,bool):bool:this]
						;; size=22 bbWeight=0.50 PerfScore 2.38
G_M13954_IG07:
       mov      rcx, 0xD1FFAB1E      ; System.Threading.TimerHolder
       call     CORINFO_HELP_NEWFAST
       mov      rsi, rax
       lea      rcx, bword ptr [rsi+08H]
       mov      rdx, r14
       call     CORINFO_HELP_ASSIGN_REF
       lea      rcx, bword ptr [rbx+08H]
       mov      rdx, rsi
       call     CORINFO_HELP_ASSIGN_REF
       nop      
						;; size=43 bbWeight=1    PerfScore 5.25
G_M13954_IG08:
       add      rsp, 32
       pop      rbx
       pop      rbp
       pop      rsi
       pop      rdi
       pop      r14
       ret      
						;; size=11 bbWeight=1    PerfScore 3.75
G_M13954_IG09:
       mov      ecx, 0x1678E
       mov      rdx, 0xD1FFAB1E
       call     CORINFO_HELP_STRCNS
       mov      rcx, rax
       call     [System.ArgumentNullException:Throw(System.String)]
       int3     
						;; size=30 bbWeight=0    PerfScore 0.00
G_M13954_IG10:
       call     CORINFO_HELP_RNGCHKFAIL
       int3     
						;; size=6 bbWeight=0    PerfScore 0.00

Changed text

Open file

G_M13954_IG01:
       push     r14
       push     rdi
       push     rsi
       push     rbp
       push     rbx
       sub      rsp, 48
       mov      rbx, rcx
       mov      rsi, rdx
       mov      rbp, r8
       mov      edi, r9d
						;; size=22 bbWeight=1    PerfScore 6.25
G_M13954_IG02:
       test     rsi, rsi
       je       G_M13954_IG09
       mov      rcx, 0xD1FFAB1E      ; System.Threading.TimerQueueTimer
       call     CORINFO_HELP_NEWSFAST
       mov      r14, rax
       lea      rcx, bword ptr [r14+20H]
       mov      rdx, rsi
       call     CORINFO_HELP_ASSIGN_REF
       lea      rcx, bword ptr [r14+28H]
       mov      rdx, rbp
       call     CORINFO_HELP_ASSIGN_REF
       mov      dword ptr [r14+48H], -1
       mov      dword ptr [r14+4CH], -1
       call     [System.Threading.ExecutionContext:Capture():System.Threading.ExecutionContext]
       lea      rcx, bword ptr [r14+30H]
       mov      rdx, rax
       call     CORINFO_HELP_ASSIGN_REF
       mov      rcx, 0xD1FFAB1E      ; const ptr
       mov      rsi, gword ptr [rcx]
       mov      rcx, 0xD1FFAB1E
       mov      edx, 725
       call     CORINFO_HELP_GETSHARED_NONGCTHREADSTATIC_BASE_NOCTOR
       mov      ecx, dword ptr [rax+09A4H]
       lea      edx, [rcx-01H]
       mov      dword ptr [rax+09A4H], edx
       test     ecx, 0xFFFF
       jne      SHORT G_M13954_IG04
						;; size=141 bbWeight=1    PerfScore 21.50
G_M13954_IG03:
       call     [System.Threading.ProcessorIdCache:RefreshCurrentProcessorId():int]
       mov      ecx, eax
       mov      dword ptr [rsp+2CH], ecx
       jmp      SHORT G_M13954_IG05
						;; size=14 bbWeight=0.50 PerfScore 3.12
G_M13954_IG04:
       sar      ecx, 16
       mov      dword ptr [rsp+2CH], ecx
						;; size=7 bbWeight=0.50 PerfScore 0.75
G_M13954_IG05:
       lea      rcx, bword ptr [r14+08H]
       mov      edx, 0xD1FFAB1E
       mov      r8d, dword ptr [rsp+2CH]
       mov      eax, edx
       imul     edx:eax, r8d
       mov      eax, edx
       shr      eax, 31
       sar      edx, 1
       add      edx, eax
       lea      edx, [rdx+2*rdx]
       shl      edx, 2
       sub      r8d, edx
       cmp      r8d, 12
       jae      G_M13954_IG10
       mov      edx, r8d
       mov      rdx, gword ptr [rsi+8*rdx+10H]
       call     CORINFO_HELP_ASSIGN_REF
       cmp      edi, -1
       je       SHORT G_M13954_IG07
						;; size=65 bbWeight=1    PerfScore 13.50
G_M13954_IG06:
       mov      rcx, r14
       mov      edx, edi
       mov      r8d, dword ptr [rsp+80H]
       mov      r9d, 1
       call     [System.Threading.TimerQueueTimer:Change(uint,uint,bool):bool:this]
						;; size=25 bbWeight=0.50 PerfScore 2.38
G_M13954_IG07:
       mov      rcx, 0xD1FFAB1E      ; System.Threading.TimerHolder
       call     CORINFO_HELP_NEWFAST
       mov      rsi, rax
       lea      rcx, bword ptr [rsi+08H]
       mov      rdx, r14
       call     CORINFO_HELP_ASSIGN_REF
       lea      rcx, bword ptr [rbx+08H]
       mov      rdx, rsi
       call     CORINFO_HELP_ASSIGN_REF
       nop      
						;; size=43 bbWeight=1    PerfScore 5.25
G_M13954_IG08:
       add      rsp, 48
       pop      rbx
       pop      rbp
       pop      rsi
       pop      rdi
       pop      r14
       ret      
						;; size=11 bbWeight=1    PerfScore 3.75
G_M13954_IG09:
       mov      ecx, 0x1678E
       mov      rdx, 0xD1FFAB1E
       call     CORINFO_HELP_STRCNS
       mov      rcx, rax
       call     [System.ArgumentNullException:Throw(System.String)]
       int3     
						;; size=30 bbWeight=0    PerfScore 0.00
G_M13954_IG10:
       call     CORINFO_HELP_RNGCHKFAIL
       int3     
						;; size=6 bbWeight=0    PerfScore 0.00