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; Assembly listing for method AnagramEqualityComparer:GetHashCode(System.String):int:this

; Emitting BLENDED_CODE for generic ARM64 CPU - Unix

; optimized code

; fp based frame

; fully interruptible

; No matching PGO data

; Final local variable assignments

;

;* V00 this [V00 ] ( 0, 0 ) ref -> zero-ref this class-hnd single-def

; V01 arg1 [V01,T03] ( 5, 4 ) ref -> x1 class-hnd single-def

; V02 loc0 [V02,T01] ( 4, 9 ) int -> x2

; V02 loc0 [V02,T01] ( 4, 9 ) int -> x0

; V03 loc1 [V03,T05] ( 2, 4.50) ref -> x1 class-hnd single-def

; V03 loc1 [V03,T06] ( 2, 1 ) ref -> x1 class-hnd single-def

; V04 loc2 [V04,T00] ( 5, 16.50) int -> x3

; V05 loc3 [V05,T02] ( 2, 8 ) ushort -> x4

;# V06 OutArgs [V06 ] ( 1, 1 ) lclBlk ( 0) [sp+00H] "OutgoingArgSpace"

; V07 cse0 [V07,T04] ( 4, 5.50) int -> x0 "CSE - aggressive"

; V07 cse0 [V07,T04] ( 4, 5.50) int -> x2 "CSE - aggressive"

; V08 cse1 [V08,T05] ( 2, 4.50) byref -> x1 "CSE - aggressive"

;

; Lcl frame size = 0

G_M19593_IG01: ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref, nogc <-- Prolog IG

stp fp, lr, [sp,#-16]!

mov fp, sp

;; bbWeight=1 PerfScore 1.50

G_M19593_IG02: ; gcrefRegs=0002 {x1}, byrefRegs=0000 {}, byref, isz

; gcrRegs +[x1]

cbnz x1, G_M19593_IG05

;; bbWeight=1 PerfScore 1.00

G_M19593_IG03: ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref

; gcrRegs -[x1]

mov w0, #0

;; bbWeight=0.50 PerfScore 0.25

G_M19593_IG04: ; , epilog, nogc, extend

ldp fp, lr, [sp],#16

ret lr

;; bbWeight=0.50 PerfScore 1.00

G_M19593_IG05: ; gcVars=0000000000000000 {}, gcrefRegs=0002 {x1}, byrefRegs=0000 {}, gcvars, byref, isz

G_M19593_IG05: ; gcVars=0000000000000000 {}, gcrefRegs=0002 {x1}, byrefRegs=0000 {}, gcvars, byref, isz, align

; gcrRegs +[x1]

ldr w0, [x1,#8]

ldr w2, [x1,#8]

mov w2, w0

mov w0, w2

mov w3, wzr

cmp w0, #0

cmp w2, #0

ble G_M19593_IG07

align [0 bytes]

add x1, x1, #12

align [0 bytes]

; gcrRegs -[x1]

align [0 bytes]

; byrRegs +[x1]

align [0 bytes]

align [4 bytes]

;; bbWeight=0.50 PerfScore 2.75

align [4 bytes]

G_M19593_IG06: ; gcrefRegs=0002 {x1}, byrefRegs=0000 {}, loop=IG06, byref, isz

align [4 bytes]

;; bbWeight=0.50 PerfScore 4.00

G_M19593_IG06: ; gcrefRegs=0000 {}, byrefRegs=0002 {x1}, loop=IG06, byref, isz

ubfiz x4, x3, #1, #32

add x4, x4, #12

ldrh w4, [x1, x4]

eor w2, w2, w4

eor w0, w0, w4

add w3, w3, #1

cmp w0, w3

cmp w2, w3

bgt G_M19593_IG06

;; bbWeight=4 PerfScore 28.00

;; bbWeight=4 PerfScore 26.00

G_M19593_IG07: ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref

G_M19593_IG07: ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref, epilog, nogc

; gcrRegs -[x1]

; byrRegs -[x1]

mov w0, w2

;; bbWeight=0.50 PerfScore 0.25

G_M19593_IG08: ; , epilog, nogc, extend

ldp fp, lr, [sp],#16

ret lr

;; bbWeight=0.50 PerfScore 1.00

; Total bytes of code 84, prolog size 8, PerfScore 44.15, instruction count 25, allocated bytes for code 84 (MethodHash=c8c4b376) for method AnagramEqualityComparer:GetHashCode(System.String):int:this

; Total bytes of code 96, prolog size 8, PerfScore 44.35, instruction count 24, allocated bytes for code 96 (MethodHash=c8c4b376) for method AnagramEqualityComparer:GetHashCode(System.String):int:this

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

Unwind Info:

>> Start offset : 0x000000 (not in unwind data)

>> End offset : 0xd1ffab1e (not in unwind data)

Code Words : 1

Epilog Count : 2

E bit : 0

X bit : 0

Vers : 0

Function Length : 21 (0x00015) Actual length = 84 (0x000054)

Function Length : 24 (0x00018) Actual length = 96 (0x000060)

---- Epilog scopes ----

---- Scope 0

Epilog Start Offset : 3523193630 (0xd1ffab1e) Actual offset = 3523193630 (0xd1ffab1e) Offset from main function begin = 3523193630 (0xd1ffab1e)

Epilog Start Index : 1 (0x01)

---- Scope 1

Epilog Start Offset : 3523193630 (0xd1ffab1e) Actual offset = 3523193630 (0xd1ffab1e) Offset from main function begin = 3523193630 (0xd1ffab1e)

Epilog Start Index : 1 (0x01)

---- Unwind codes ----

E1 set_fp; mov fp, sp

---- Epilog start at index 1 ----

81 save_fplr_x #1 (0x01); stp fp, lr, [sp, #-16]!

E4 end

Saved diffs

Original text

Open file

; Assembly listing for method AnagramEqualityComparer:GetHashCode(System.String):int:this
; Emitting BLENDED_CODE for generic ARM64 CPU - Unix
; optimized code
; fp based frame
; fully interruptible
; No matching PGO data
; Final local variable assignments
;
;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def
;  V01 arg1         [V01,T03] (  5,  4   )     ref  ->   x1         class-hnd single-def
;  V02 loc0         [V02,T01] (  4,  9   )     int  ->   x2        
;  V03 loc1         [V03,T05] (  2,  4.50)     ref  ->   x1         class-hnd single-def
;  V04 loc2         [V04,T00] (  5, 16.50)     int  ->   x3        
;  V05 loc3         [V05,T02] (  2,  8   )  ushort  ->   x4        
;# V06 OutArgs      [V06    ] (  1,  1   )  lclBlk ( 0) [sp+00H]   "OutgoingArgSpace"
;  V07 cse0         [V07,T04] (  4,  5.50)     int  ->   x0         "CSE - aggressive"
;
; Lcl frame size = 0

G_M19593_IG01:        ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref, nogc <-- Prolog IG
            stp     fp, lr, [sp,#-16]!
            mov     fp, sp
						;; bbWeight=1    PerfScore 1.50
G_M19593_IG02:        ; gcrefRegs=0002 {x1}, byrefRegs=0000 {}, byref, isz
            ; gcrRegs +[x1]
            cbnz    x1, G_M19593_IG05
						;; bbWeight=1    PerfScore 1.00
G_M19593_IG03:        ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref
            ; gcrRegs -[x1]
            mov     w0, #0
						;; bbWeight=0.50 PerfScore 0.25
G_M19593_IG04:        ; , epilog, nogc, extend
            ldp     fp, lr, [sp],#16
            ret     lr
						;; bbWeight=0.50 PerfScore 1.00
G_M19593_IG05:        ; gcVars=0000000000000000 {}, gcrefRegs=0002 {x1}, byrefRegs=0000 {}, gcvars, byref, isz
            ; gcrRegs +[x1]
            ldr     w0, [x1,#8]
            mov     w2, w0
            mov     w3, wzr
            cmp     w0, #0
            ble     G_M19593_IG07
            align   [0 bytes]
            align   [0 bytes]
            align   [0 bytes]
            align   [0 bytes]
						;; bbWeight=0.50 PerfScore 2.75
G_M19593_IG06:        ; gcrefRegs=0002 {x1}, byrefRegs=0000 {}, loop=IG06, byref, isz
            ubfiz   x4, x3, #1, #32
            add     x4, x4, #12
            ldrh    w4, [x1, x4]
            eor     w2, w2, w4
            add     w3, w3, #1
            cmp     w0, w3
            bgt     G_M19593_IG06
						;; bbWeight=4    PerfScore 28.00
G_M19593_IG07:        ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref
            ; gcrRegs -[x1]
            mov     w0, w2
						;; bbWeight=0.50 PerfScore 0.25
G_M19593_IG08:        ; , epilog, nogc, extend
            ldp     fp, lr, [sp],#16
            ret     lr
						;; bbWeight=0.50 PerfScore 1.00

Unwind Info:
  >> Start offset   : 0x000000 (not in unwind data)
  >>   End offset   : 0xd1ffab1e (not in unwind data)
  Code Words        : 1
  Epilog Count      : 2
  E bit             : 0
  X bit             : 0
  Vers              : 0
  Function Length   : 21 (0x00015) Actual length = 84 (0x000054)
  ---- Epilog scopes ----
  ---- Scope 0
  Epilog Start Offset        : 3523193630 (0xd1ffab1e) Actual offset = 3523193630 (0xd1ffab1e) Offset from main function begin = 3523193630 (0xd1ffab1e)
  Epilog Start Index         : 1 (0x01)
  ---- Scope 1
  Epilog Start Offset        : 3523193630 (0xd1ffab1e) Actual offset = 3523193630 (0xd1ffab1e) Offset from main function begin = 3523193630 (0xd1ffab1e)
  Epilog Start Index         : 1 (0x01)
  ---- Unwind codes ----
    E1          set_fp; mov fp, sp
    ---- Epilog start at index 1 ----
    81          save_fplr_x #1 (0x01); stp fp, lr, [sp, #-16]!
    E4          end
    E4          end

Changed text

Open file

; Assembly listing for method AnagramEqualityComparer:GetHashCode(System.String):int:this
; Emitting BLENDED_CODE for generic ARM64 CPU - Unix
; optimized code
; fp based frame
; fully interruptible
; No matching PGO data
; Final local variable assignments
;
;* V00 this         [V00    ] (  0,  0   )     ref  ->  zero-ref    this class-hnd single-def
;  V01 arg1         [V01,T03] (  5,  4   )     ref  ->   x1         class-hnd single-def
;  V02 loc0         [V02,T01] (  4,  9   )     int  ->   x0        
;  V03 loc1         [V03,T06] (  2,  1   )     ref  ->   x1         class-hnd single-def
;  V04 loc2         [V04,T00] (  5, 16.50)     int  ->   x3        
;  V05 loc3         [V05,T02] (  2,  8   )  ushort  ->   x4        
;# V06 OutArgs      [V06    ] (  1,  1   )  lclBlk ( 0) [sp+00H]   "OutgoingArgSpace"
;  V07 cse0         [V07,T04] (  4,  5.50)     int  ->   x2         "CSE - aggressive"
;  V08 cse1         [V08,T05] (  2,  4.50)   byref  ->   x1         "CSE - aggressive"
;
; Lcl frame size = 0

G_M19593_IG01:        ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref, nogc <-- Prolog IG
            stp     fp, lr, [sp,#-16]!
            mov     fp, sp
						;; bbWeight=1    PerfScore 1.50
G_M19593_IG02:        ; gcrefRegs=0002 {x1}, byrefRegs=0000 {}, byref, isz
            ; gcrRegs +[x1]
            cbnz    x1, G_M19593_IG05
						;; bbWeight=1    PerfScore 1.00
G_M19593_IG03:        ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref
            ; gcrRegs -[x1]
            mov     w0, #0
						;; bbWeight=0.50 PerfScore 0.25
G_M19593_IG04:        ; , epilog, nogc, extend
            ldp     fp, lr, [sp],#16
            ret     lr
						;; bbWeight=0.50 PerfScore 1.00
G_M19593_IG05:        ; gcVars=0000000000000000 {}, gcrefRegs=0002 {x1}, byrefRegs=0000 {}, gcvars, byref, isz, align
            ; gcrRegs +[x1]
            ldr     w2, [x1,#8]
            mov     w0, w2
            mov     w3, wzr
            cmp     w2, #0
            ble     G_M19593_IG07
            add     x1, x1, #12
            ; gcrRegs -[x1]
            ; byrRegs +[x1]
            align   [4 bytes]
            align   [4 bytes]
            align   [4 bytes]
            align   [4 bytes]
						;; bbWeight=0.50 PerfScore 4.00
G_M19593_IG06:        ; gcrefRegs=0000 {}, byrefRegs=0002 {x1}, loop=IG06, byref, isz
            ubfiz   x4, x3, #1, #32
            ldrh    w4, [x1, x4]
            eor     w0, w0, w4
            add     w3, w3, #1
            cmp     w2, w3
            bgt     G_M19593_IG06
						;; bbWeight=4    PerfScore 26.00
G_M19593_IG07:        ; gcrefRegs=0000 {}, byrefRegs=0000 {}, byref, epilog, nogc
            ; byrRegs -[x1]
            ldp     fp, lr, [sp],#16
            ret     lr
						;; bbWeight=0.50 PerfScore 1.00

Unwind Info:
  >> Start offset   : 0x000000 (not in unwind data)
  >>   End offset   : 0xd1ffab1e (not in unwind data)
  Code Words        : 1
  Epilog Count      : 2
  E bit             : 0
  X bit             : 0
  Vers              : 0
  Function Length   : 24 (0x00018) Actual length = 96 (0x000060)
  ---- Epilog scopes ----
  ---- Scope 0
  Epilog Start Offset        : 3523193630 (0xd1ffab1e) Actual offset = 3523193630 (0xd1ffab1e) Offset from main function begin = 3523193630 (0xd1ffab1e)
  Epilog Start Index         : 1 (0x01)
  ---- Scope 1
  Epilog Start Offset        : 3523193630 (0xd1ffab1e) Actual offset = 3523193630 (0xd1ffab1e) Offset from main function begin = 3523193630 (0xd1ffab1e)
  Epilog Start Index         : 1 (0x01)
  ---- Unwind codes ----
    E1          set_fp; mov fp, sp
    ---- Epilog start at index 1 ----
    81          save_fplr_x #1 (0x01); stp fp, lr, [sp, #-16]!
    E4          end
    E4          end