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## .NET 8.0.0 (42.42.42.42424), X64 RyuJIT AVX

```assembly

; System.Text.Perf_Ascii.Equals_Chars()

sub rsp,28

mov r8,[rcx+20]

test r8,r8

je short M00_L04

lea rdx,[r8+10]

mov eax,[r8+8]

M00_L00:

mov r8,[rcx+28]

test r8,r8

je short M00_L02

lea rcx,[r8+10]

mov r10d,[r8+8]

M00_L01:

mov [rsp+20],rcx

cmp eax,r10d

jne short M00_L05

mov r8d,r10d

mov rcx,rdx

mov rdx,[rsp+20]

call qword ptr [7FFB99BCE1A8]; System.Text.Ascii.Equals[[System.UInt16, System.Private.CoreLib],[System.UInt16, System.Private.CoreLib],[System.Text.Ascii+PlainLoader`1[[System.UInt16, System.Private.CoreLib]], System.Private.CoreLib]](UInt16 ByRef, UInt16 ByRef, UIntPtr)

call qword ptr [7FFB99BFE1A8]; System.Text.Ascii.Equals[[System.UInt16, System.Private.CoreLib],[System.UInt16, System.Private.CoreLib],[System.Text.Ascii+PlainLoader`1[[System.UInt16, System.Private.CoreLib]], System.Private.CoreLib]](UInt16 ByRef, UInt16 ByRef, UIntPtr)

jmp short M00_L03

M00_L02:

xor ecx,ecx

xor r10d,r10d

jmp short M00_L01

M00_L03:

add rsp,28

ret

M00_L04:

xor edx,edx

xor eax,eax

jmp short M00_L00

M00_L05:

xor eax,eax

jmp short M00_L03

; Total bytes of code 89

```

```assembly

; System.Text.Ascii.Equals[[System.UInt16, System.Private.CoreLib],[System.UInt16, System.Private.CoreLib],[System.Text.Ascii+PlainLoader`1[[System.UInt16, System.Private.CoreLib]], System.Private.CoreLib]](UInt16 ByRef, UInt16 ByRef, UIntPtr)

sub rsp,98

vzeroupper

cmp r8,8

jae short M01_L03

xor eax,eax

test r8,r8

jbe short M01_L01

M01_L00:

movzx r10d,word ptr [rcx+rax*2]

movzx r9d,word ptr [rdx+rax*2]

cmp r10d,r9d

jne near ptr M01_L10

or r10d,r9d

cmp r10d,7F

ja near ptr M01_L10

inc rax

cmp rax,r8

jb short M01_L00

M01_L01:

mov eax,1

vzeroupper

add rsp,98

ret

M01_L02:

movzx eax,cl

vzeroupper

add rsp,98

ret

M01_L03:

cmp r8,10

jb near ptr M01_L08

mov rax,rcx

lea r10,[rdx+r8*2-20]

M01_L04:

vmovups ymm0,[rax]

vmovups [rsp+60],ymm0

vmovups ymm0,[rdx]

vmovups [rsp+40],ymm0

vmovups xmm0,[rsp+60]

vpcmpeqw xmm0,xmm0,[rsp+40]

vpmovmskb r9d,xmm0

cmp r9d,0FFFF

jne near ptr M01_L10

vmovups xmm0,[rsp+70]

vpcmpeqw xmm0,xmm0,[rsp+50]

vpmovmskb r9d,xmm0

cmp r9d,0FFFF

setne r9b

movzx r9d,r9b

test r9d,r9d

jne near ptr M01_L10

vmovups ymm0,[rsp+60]

vptest ymm0,ymmword ptr [7FFB99639B80]

vptest ymm0,ymmword ptr [7FFB99669B40]

jne near ptr M01_L10

add rdx,20

add rax,20

cmp rdx,r10

jbe short M01_L04

test r8b,0F

je near ptr M01_L01

vmovups ymm0,[rcx+r8*2-20]

vmovups [rsp+20],ymm0

vmovups ymm0,[r10]

vmovups [rsp],ymm0

vmovups xmm0,[rsp+20]

vpcmpeqw xmm0,xmm0,[rsp]

vpmovmskb ecx,xmm0

cmp ecx,0FFFF

jne short M01_L05

vmovups xmm0,[rsp+30]

vpcmpeqw xmm0,xmm0,[rsp+10]

vpmovmskb r8d,xmm0

cmp r8d,0FFFF

setne al

movzx eax,al

test eax,eax

jne short M01_L05

vmovups ymm0,[rsp+20]

vptest ymm0,ymmword ptr [7FFB99639B80]

vptest ymm0,ymmword ptr [7FFB99669B40]

je short M01_L06

M01_L05:

xor ecx,ecx

jmp short M01_L07

M01_L06:

mov ecx,1

M01_L07:

jmp near ptr M01_L02

M01_L08:

lea rax,[rcx+r8*2-10]

lea r10,[rdx+r8*2-10]

M01_L09:

vmovups xmm0,[rcx]

vmovups xmm1,[rdx]

vpcmpeqw xmm1,xmm0,[rdx]

vpcmpeqw xmm2,xmm0,xmm1

vpmovmskb r9d,xmm1

vpmovmskb r9d,xmm2

cmp r9d,0FFFF

jne short M01_L10

vpor xmm0,xmm0,xmm1

vptest xmm0,xmmword ptr [7FFB99669B40]

vptest xmm0,xmmword ptr [7FFB99639B80]

jne short M01_L10

add rdx,10

add rcx,10

cmp rdx,r10

jbe short M01_L09

test r8b,7

je near ptr M01_L01

vmovups xmm0,[rax]

vmovups xmm1,[r10]

vpcmpeqw xmm1,xmm0,[r10]

vpcmpeqw xmm2,xmm0,xmm1

vpmovmskb eax,xmm1

vpmovmskb eax,xmm2

cmp eax,0FFFF

jne short M01_L10

vpor xmm0,xmm0,xmm1

vptest xmm0,xmmword ptr [7FFB99669B40]

vptest xmm0,xmmword ptr [7FFB99639B80]

je near ptr M01_L01

M01_L10:

xor eax,eax

vzeroupper

add rsp,98

ret

; Total bytes of code 483

; Total bytes of code 464

```

已保存差异

原始文本

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## .NET 8.0.0 (42.42.42.42424), X64 RyuJIT AVX
```assembly
; System.Text.Perf_Ascii.Equals_Chars()
       sub       rsp,28
       mov       r8,[rcx+20]
       test      r8,r8
       je        short M00_L04
       lea       rdx,[r8+10]
       mov       eax,[r8+8]
M00_L00:
       mov       r8,[rcx+28]
       test      r8,r8
       je        short M00_L02
       lea       rcx,[r8+10]
       mov       r10d,[r8+8]
M00_L01:
       mov       [rsp+20],rcx
       cmp       eax,r10d
       jne       short M00_L05
       mov       r8d,r10d
       mov       rcx,rdx
       mov       rdx,[rsp+20]
       call      qword ptr [7FFB99BCE1A8]; System.Text.Ascii.Equals[[System.UInt16, System.Private.CoreLib],[System.UInt16, System.Private.CoreLib],[System.Text.Ascii+PlainLoader`1[[System.UInt16, System.Private.CoreLib]], System.Private.CoreLib]](UInt16 ByRef, UInt16 ByRef, UIntPtr)
       jmp       short M00_L03
M00_L02:
       xor       ecx,ecx
       xor       r10d,r10d
       jmp       short M00_L01
M00_L03:
       add       rsp,28
       ret
M00_L04:
       xor       edx,edx
       xor       eax,eax
       jmp       short M00_L00
M00_L05:
       xor       eax,eax
       jmp       short M00_L03
; Total bytes of code 89
```
```assembly
; System.Text.Ascii.Equals[[System.UInt16, System.Private.CoreLib],[System.UInt16, System.Private.CoreLib],[System.Text.Ascii+PlainLoader`1[[System.UInt16, System.Private.CoreLib]], System.Private.CoreLib]](UInt16 ByRef, UInt16 ByRef, UIntPtr)
       sub       rsp,98
       vzeroupper
       cmp       r8,8
       jae       short M01_L03
       xor       eax,eax
       test      r8,r8
       jbe       short M01_L01
M01_L00:
       movzx     r10d,word ptr [rcx+rax*2]
       movzx     r9d,word ptr [rdx+rax*2]
       cmp       r10d,r9d
       jne       near ptr M01_L10
       or        r10d,r9d
       cmp       r10d,7F
       ja        near ptr M01_L10
       inc       rax
       cmp       rax,r8
       jb        short M01_L00
M01_L01:
       mov       eax,1
       vzeroupper
       add       rsp,98
       ret
M01_L02:
       movzx     eax,cl
       vzeroupper
       add       rsp,98
       ret
M01_L03:
       cmp       r8,10
       jb        near ptr M01_L08
       mov       rax,rcx
       lea       r10,[rdx+r8*2-20]
M01_L04:
       vmovups   ymm0,[rax]
       vmovups   [rsp+60],ymm0
       vmovups   ymm0,[rdx]
       vmovups   [rsp+40],ymm0
       vmovups   xmm0,[rsp+60]
       vpcmpeqw  xmm0,xmm0,[rsp+40]
       vpmovmskb r9d,xmm0
       cmp       r9d,0FFFF
       jne       near ptr M01_L10
       vmovups   xmm0,[rsp+70]
       vpcmpeqw  xmm0,xmm0,[rsp+50]
       vpmovmskb r9d,xmm0
       cmp       r9d,0FFFF
       setne     r9b
       movzx     r9d,r9b
       test      r9d,r9d
       jne       near ptr M01_L10
       vmovups   ymm0,[rsp+60]
       vptest    ymm0,ymmword ptr [7FFB99639B80]
       jne       near ptr M01_L10
       add       rdx,20
       add       rax,20
       cmp       rdx,r10
       jbe       short M01_L04
       test      r8b,0F
       je        near ptr M01_L01
       vmovups   ymm0,[rcx+r8*2-20]
       vmovups   [rsp+20],ymm0
       vmovups   ymm0,[r10]
       vmovups   [rsp],ymm0
       vmovups   xmm0,[rsp+20]
       vpcmpeqw  xmm0,xmm0,[rsp]
       vpmovmskb ecx,xmm0
       cmp       ecx,0FFFF
       jne       short M01_L05
       vmovups   xmm0,[rsp+30]
       vpcmpeqw  xmm0,xmm0,[rsp+10]
       vpmovmskb r8d,xmm0
       cmp       r8d,0FFFF
       setne     al
       movzx     eax,al
       test      eax,eax
       jne       short M01_L05
       vmovups   ymm0,[rsp+20]
       vptest    ymm0,ymmword ptr [7FFB99639B80]
       je        short M01_L06
M01_L05:
       xor       ecx,ecx
       jmp       short M01_L07
M01_L06:
       mov       ecx,1
M01_L07:
       jmp       near ptr M01_L02
M01_L08:
       lea       rax,[rcx+r8*2-10]
       lea       r10,[rdx+r8*2-10]
M01_L09:
       vmovups   xmm0,[rcx]
       vmovups   xmm1,[rdx]
       vpcmpeqw  xmm2,xmm0,xmm1
       vpmovmskb r9d,xmm2
       cmp       r9d,0FFFF
       jne       short M01_L10
       vpor      xmm0,xmm0,xmm1
       vptest    xmm0,xmmword ptr [7FFB99639B80]
       jne       short M01_L10
       add       rdx,10
       add       rcx,10
       cmp       rdx,r10
       jbe       short M01_L09
       test      r8b,7
       je        near ptr M01_L01
       vmovups   xmm0,[rax]
       vmovups   xmm1,[r10]
       vpcmpeqw  xmm2,xmm0,xmm1
       vpmovmskb eax,xmm2
       cmp       eax,0FFFF
       jne       short M01_L10
       vpor      xmm0,xmm0,xmm1
       vptest    xmm0,xmmword ptr [7FFB99639B80]
       je        near ptr M01_L01
M01_L10:
       xor       eax,eax
       vzeroupper
       add       rsp,98
       ret
; Total bytes of code 483
```

更改后文本

打开文件

## .NET 8.0.0 (42.42.42.42424), X64 RyuJIT AVX
```assembly
; System.Text.Perf_Ascii.Equals_Chars()
       sub       rsp,28
       mov       r8,[rcx+20]
       test      r8,r8
       je        short M00_L04
       lea       rdx,[r8+10]
       mov       eax,[r8+8]
M00_L00:
       mov       r8,[rcx+28]
       test      r8,r8
       je        short M00_L02
       lea       rcx,[r8+10]
       mov       r10d,[r8+8]
M00_L01:
       mov       [rsp+20],rcx
       cmp       eax,r10d
       jne       short M00_L05
       mov       r8d,r10d
       mov       rcx,rdx
       mov       rdx,[rsp+20]
       call      qword ptr [7FFB99BFE1A8]; System.Text.Ascii.Equals[[System.UInt16, System.Private.CoreLib],[System.UInt16, System.Private.CoreLib],[System.Text.Ascii+PlainLoader`1[[System.UInt16, System.Private.CoreLib]], System.Private.CoreLib]](UInt16 ByRef, UInt16 ByRef, UIntPtr)
       jmp       short M00_L03
M00_L02:
       xor       ecx,ecx
       xor       r10d,r10d
       jmp       short M00_L01
M00_L03:
       add       rsp,28
       ret
M00_L04:
       xor       edx,edx
       xor       eax,eax
       jmp       short M00_L00
M00_L05:
       xor       eax,eax
       jmp       short M00_L03
; Total bytes of code 89
```
```assembly
; System.Text.Ascii.Equals[[System.UInt16, System.Private.CoreLib],[System.UInt16, System.Private.CoreLib],[System.Text.Ascii+PlainLoader`1[[System.UInt16, System.Private.CoreLib]], System.Private.CoreLib]](UInt16 ByRef, UInt16 ByRef, UIntPtr)
       sub       rsp,98
       vzeroupper
       cmp       r8,8
       jae       short M01_L03
       xor       eax,eax
       test      r8,r8
       jbe       short M01_L01
M01_L00:
       movzx     r10d,word ptr [rcx+rax*2]
       movzx     r9d,word ptr [rdx+rax*2]
       cmp       r10d,r9d
       jne       near ptr M01_L10
       cmp       r10d,7F
       ja        near ptr M01_L10
       inc       rax
       cmp       rax,r8
       jb        short M01_L00
M01_L01:
       mov       eax,1
       vzeroupper
       add       rsp,98
       ret
M01_L02:
       movzx     eax,cl
       vzeroupper
       add       rsp,98
       ret
M01_L03:
       cmp       r8,10
       jb        near ptr M01_L08
       mov       rax,rcx
       lea       r10,[rdx+r8*2-20]
M01_L04:
       vmovups   ymm0,[rax]
       vmovups   [rsp+60],ymm0
       vmovups   ymm0,[rdx]
       vmovups   [rsp+40],ymm0
       vmovups   xmm0,[rsp+60]
       vpcmpeqw  xmm0,xmm0,[rsp+40]
       vpmovmskb r9d,xmm0
       cmp       r9d,0FFFF
       jne       near ptr M01_L10
       vmovups   xmm0,[rsp+70]
       vpcmpeqw  xmm0,xmm0,[rsp+50]
       vpmovmskb r9d,xmm0
       cmp       r9d,0FFFF
       setne     r9b
       movzx     r9d,r9b
       test      r9d,r9d
       jne       near ptr M01_L10
       vmovups   ymm0,[rsp+60]
       vptest    ymm0,ymmword ptr [7FFB99669B40]
       jne       near ptr M01_L10
       add       rdx,20
       add       rax,20
       cmp       rdx,r10
       jbe       short M01_L04
       test      r8b,0F
       je        near ptr M01_L01
       vmovups   ymm0,[rcx+r8*2-20]
       vmovups   [rsp+20],ymm0
       vmovups   ymm0,[r10]
       vmovups   [rsp],ymm0
       vmovups   xmm0,[rsp+20]
       vpcmpeqw  xmm0,xmm0,[rsp]
       vpmovmskb ecx,xmm0
       cmp       ecx,0FFFF
       jne       short M01_L05
       vmovups   xmm0,[rsp+30]
       vpcmpeqw  xmm0,xmm0,[rsp+10]
       vpmovmskb r8d,xmm0
       cmp       r8d,0FFFF
       setne     al
       movzx     eax,al
       test      eax,eax
       jne       short M01_L05
       vmovups   ymm0,[rsp+20]
       vptest    ymm0,ymmword ptr [7FFB99669B40]
       je        short M01_L06
M01_L05:
       xor       ecx,ecx
       jmp       short M01_L07
M01_L06:
       mov       ecx,1
M01_L07:
       jmp       near ptr M01_L02
M01_L08:
       lea       rax,[rcx+r8*2-10]
       lea       r10,[rdx+r8*2-10]
M01_L09:
       vmovups   xmm0,[rcx]
       vpcmpeqw  xmm1,xmm0,[rdx]
       vpmovmskb r9d,xmm1
       cmp       r9d,0FFFF
       jne       short M01_L10
       vptest    xmm0,xmmword ptr [7FFB99669B40]
       jne       short M01_L10
       add       rdx,10
       add       rcx,10
       cmp       rdx,r10
       jbe       short M01_L09
       test      r8b,7
       je        near ptr M01_L01
       vmovups   xmm0,[rax]
       vpcmpeqw  xmm1,xmm0,[r10]
       vpmovmskb eax,xmm1
       cmp       eax,0FFFF
       jne       short M01_L10
       vptest    xmm0,xmmword ptr [7FFB99669B40]
       je        near ptr M01_L01
M01_L10:
       xor       eax,eax
       vzeroupper
       add       rsp,98
       ret
; Total bytes of code 464
```