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AsyncMethodBuilderCore.Start()

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; Assembly listing for method System.Runtime.CompilerServices.AsyncMethodBuilderCore:Start(byref)

; Emitting BLENDED_CODE for X64 CPU with AVX - Windows

; optimized code

; rbp based frame

; fully interruptible

; Final local variable assignments

;

; V00 arg0 [V00,T00] ( 4, 4 ) byref -> rsi

;* V01 loc0 [V01 ] ( 0, 0 ) ref -> zero-ref class-hnd

; V01 loc0 [V01,T03] ( 9, 3 ) ref -> [rbp-0x10] EH class-hnd EH-live

; V02 loc1 [V02,T04] ( 5, 3 ) ref -> [rbp-0x10] EH do-not-enreg[] class-hnd EH-live

; V02 loc1 [V02,T05] ( 5, 1.50) ref -> [rbp-0x18] EH class-hnd EH-live

; V03 loc2 [V03,T08] ( 2, 2 ) ref -> rcx class-hnd

; V03 loc2 [V03,T06] ( 5, 1.50) ref -> [rbp-0x20] EH class-hnd EH-live

; V04 loc3 [V04,T05] ( 5, 3 ) ref -> [rbp-0x18] EH do-not-enreg[] class-hnd EH-live

; V04 loc3 [V04,T04] ( 6, 2.50) ref -> r8 class-hnd

; V05 loc4 [V05,T06] ( 5, 3 ) ref -> [rbp-0x20] EH do-not-enreg[] class-hnd EH-live

; V05 OutArgs [V05 ] ( 1, 1 ) lclBlk (32) [rsp+0x00] "OutgoingArgSpace"

; V06 loc5 [V06,T09] ( 4, 1.50) ref -> rdx class-hnd

; V06 tmp1 [V06,T02] ( 2, 4 ) ref -> rax class-hnd "dup spill"

; V07 loc6 [V07,T03] ( 8, 3 ) ref -> rsi class-hnd

; V07 tmp2 [V07,T01] ( 6, 5.25) ref -> rax

; V08 loc7 [V08,T10] ( 4, 1.50) ref -> rdx class-hnd

; V08 PSPSym [V08 ] ( 1, 1 ) long -> [rbp-0x30] do-not-enreg[X] addr-exposed "PSPSym"

; V09 loc8 [V09,T07] ( 6, 2.50) ref -> r8 class-hnd

; V10 OutArgs [V10 ] ( 1, 1 ) lclBlk (32) [rsp+0x00] "OutgoingArgSpace"

; V11 tmp1 [V11,T02] ( 2, 4 ) ref -> rax class-hnd "dup spill"

; V12 tmp2 [V12,T01] ( 6, 5.25) ref -> rax

; V13 PSPSym [V13 ] ( 1, 1 ) long -> [rbp-0x30] do-not-enreg[X] addr-exposed "PSPSym"

;

; Lcl frame size = 72

G_M2866_IG01:

push rbp

push rsi

sub rsp, 72

lea rbp, [rsp+50H]

mov qword ptr [rbp-30H], rsp

mov rsi, rcx

;; bbWeight=1 PerfScore 4.00

G_M2866_IG02:

cmp dword ptr [rsi], esi

mov rcx, 0xD1FFAB1E

mov edx, 625

call CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE

mov rax, gword ptr [rax+24]

test rax, rax

jne SHORT G_M2866_IG04

;; bbWeight=1 PerfScore 6.75

G_M2866_IG03:

call System.Threading.Thread:InitializeCurrentThread():System.Threading.Thread

;; bbWeight=0.25 PerfScore 0.25

G_M2866_IG04:

mov gword ptr [rbp-10H], rax

mov rcx, gword ptr [rax+8]

mov rdx, gword ptr [rax+8]

mov gword ptr [rbp-18H], rcx

mov gword ptr [rbp-18H], rdx

mov rcx, gword ptr [rax+16]

mov rax, gword ptr [rax+16]

mov gword ptr [rbp-20H], rcx

mov gword ptr [rbp-20H], rax

;; bbWeight=1 PerfScore 7.00

G_M2866_IG05:

mov rcx, rsi

call <GetResult>d__2:MoveNext():this

nop

;; bbWeight=1 PerfScore 1.50

G_M2866_IG06:

mov rdx, gword ptr [rbp-20H]

mov rax, gword ptr [rbp-20H]

mov rsi, gword ptr [rbp-10H]

mov rcx, gword ptr [rbp-10H]

mov rcx, gword ptr [rbp-20H]

cmp rax, gword ptr [rcx+16]

mov rax, gword ptr [rbp-10H]

cmp rcx, gword ptr [rax+16]

je SHORT G_M2866_IG08

;; bbWeight=1 PerfScore 7.00

;; bbWeight=1 PerfScore 5.00

G_M2866_IG07:

lea rcx, bword ptr [rsi+16]

lea rcx, bword ptr [rcx+16]

mov rdx, rax

call CORINFO_HELP_ASSIGN_REF

;; bbWeight=0.50 PerfScore 0.75

mov rcx, gword ptr [rbp-10H]

;; bbWeight=0.50 PerfScore 1.38

G_M2866_IG08:

mov r8, gword ptr [rcx+8]

mov rdx, gword ptr [rbp-18H]

mov r8, gword ptr [rsi+8]

cmp rdx, r8

cmp gword ptr [rbp-18H], r8

je SHORT G_M2866_IG10

;; bbWeight=1 PerfScore 5.00

;; bbWeight=1 PerfScore 4.25

G_M2866_IG09:

mov rcx, rsi

call System.Threading.ExecutionContext:RestoreChangedContextToThread(System.Threading.Thread,System.Threading.ExecutionContext,System.Threading.ExecutionContext)

;; bbWeight=0.50 PerfScore 0.62

;; bbWeight=0.50 PerfScore 0.50

G_M2866_IG10:

nop

;; bbWeight=1 PerfScore 0.25

G_M2866_IG11:

lea rsp, [rbp-08H]

pop rsi

pop rbp

ret

;; bbWeight=1 PerfScore 2.50

G_M2866_IG12:

push rbp

push rsi

sub rsp, 40

mov rbp, qword ptr [rcx+32]

mov qword ptr [rsp+20H], rbp

lea rbp, [rbp+50H]

;; bbWeight=0 PerfScore 0.00

G_M2866_IG13:

mov rdx, gword ptr [rbp-20H]

mov rsi, gword ptr [rbp-10H]

mov rcx, gword ptr [rbp-10H]

mov rcx, gword ptr [rbp-20H]

cmp rdx, gword ptr [rcx+16]

mov rax, gword ptr [rbp-10H]

cmp rcx, gword ptr [rax+16]

je SHORT G_M2866_IG14

lea rcx, bword ptr [rsi+16]

lea rcx, bword ptr [rcx+16]

call CORINFO_HELP_ASSIGN_REF

mov rcx, gword ptr [rbp-10H]

;; bbWeight=0 PerfScore 0.00

G_M2866_IG14:

mov r8, gword ptr [rcx+8]

mov rdx, gword ptr [rbp-18H]

mov r8, gword ptr [rsi+8]

cmp rdx, r8

cmp gword ptr [rbp-18H], r8

je SHORT G_M2866_IG15

mov rcx, rsi

call System.Threading.ExecutionContext:RestoreChangedContextToThread(System.Threading.Thread,System.Threading.ExecutionContext,System.Threading.ExecutionContext)

;; bbWeight=0 PerfScore 0.00

G_M2866_IG15:

nop

;; bbWeight=0 PerfScore 0.00

G_M2866_IG16:

add rsp, 40

pop rsi

pop rbp

ret

;; bbWeight=0 PerfScore 0.00

; Total bytes of code 224, prolog size 18, PerfScore 58.03, instruction count 66, allocated bytes for code 224 (MethodHash=f5f6f4cd) for method System.Runtime.CompilerServices.AsyncMethodBuilderCore:Start(byref)

; Total bytes of code 211, prolog size 18, PerfScore 54.48, instruction count 63, allocated bytes for code 211 (MethodHash=f5f6f4cd) for method System.Runtime.CompilerServices.AsyncMethodBuilderCore:Start(byref)

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

Saved diffs

Original text

Open file

; Assembly listing for method System.Runtime.CompilerServices.AsyncMethodBuilderCore:Start(byref)
; Emitting BLENDED_CODE for X64 CPU with AVX - Windows
; optimized code
; rbp based frame
; fully interruptible
; Final local variable assignments
;
;  V00 arg0         [V00,T00] (  4,  4   )   byref  ->  rsi
;* V01 loc0         [V01    ] (  0,  0   )     ref  ->  zero-ref    class-hnd
;  V02 loc1         [V02,T04] (  5,  3   )     ref  ->  [rbp-0x10]   EH do-not-enreg[] class-hnd EH-live
;  V03 loc2         [V03,T08] (  2,  2   )     ref  ->  rcx         class-hnd
;  V04 loc3         [V04,T05] (  5,  3   )     ref  ->  [rbp-0x18]   EH do-not-enreg[] class-hnd EH-live
;  V05 loc4         [V05,T06] (  5,  3   )     ref  ->  [rbp-0x20]   EH do-not-enreg[] class-hnd EH-live
;  V06 loc5         [V06,T09] (  4,  1.50)     ref  ->  rdx         class-hnd
;  V07 loc6         [V07,T03] (  8,  3   )     ref  ->  rsi         class-hnd
;  V08 loc7         [V08,T10] (  4,  1.50)     ref  ->  rdx         class-hnd
;  V09 loc8         [V09,T07] (  6,  2.50)     ref  ->   r8         class-hnd
;  V10 OutArgs      [V10    ] (  1,  1   )  lclBlk (32) [rsp+0x00]   "OutgoingArgSpace"
;  V11 tmp1         [V11,T02] (  2,  4   )     ref  ->  rax         class-hnd "dup spill"
;  V12 tmp2         [V12,T01] (  6,  5.25)     ref  ->  rax
;  V13 PSPSym       [V13    ] (  1,  1   )    long  ->  [rbp-0x30]   do-not-enreg[X] addr-exposed "PSPSym"
;
; Lcl frame size = 72

G_M2866_IG01:
       push     rbp
       push     rsi
       sub      rsp, 72
       lea      rbp, [rsp+50H]
       mov      qword ptr [rbp-30H], rsp
       mov      rsi, rcx
                                                ;; bbWeight=1    PerfScore 4.00
G_M2866_IG02:
       cmp      dword ptr [rsi], esi
       mov      rcx, 0xD1FFAB1E
       mov      edx, 625
       call     CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE
       mov      rax, gword ptr [rax+24]
       test     rax, rax
       jne      SHORT G_M2866_IG04
                                                ;; bbWeight=1    PerfScore 6.75
G_M2866_IG03:
       call     System.Threading.Thread:InitializeCurrentThread():System.Threading.Thread
                                                ;; bbWeight=0.25 PerfScore 0.25
G_M2866_IG04:
       mov      gword ptr [rbp-10H], rax
       mov      rcx, gword ptr [rax+8]
       mov      gword ptr [rbp-18H], rcx
       mov      rcx, gword ptr [rax+16]
       mov      gword ptr [rbp-20H], rcx
                                                ;; bbWeight=1    PerfScore 7.00
G_M2866_IG05:
       mov      rcx, rsi
       call     <GetResult>d__2:MoveNext():this
       nop
                                                ;; bbWeight=1    PerfScore 1.50
G_M2866_IG06:
       mov      rdx, gword ptr [rbp-20H]
       mov      rsi, gword ptr [rbp-10H]
       mov      rcx, gword ptr [rbp-20H]
       mov      rax, gword ptr [rbp-10H]
       cmp      rcx, gword ptr [rax+16]
       je       SHORT G_M2866_IG08
                                                ;; bbWeight=1    PerfScore 7.00
G_M2866_IG07:
       lea      rcx, bword ptr [rsi+16]
       call     CORINFO_HELP_ASSIGN_REF
                                                ;; bbWeight=0.50 PerfScore 0.75
G_M2866_IG08:
       mov      rdx, gword ptr [rbp-18H]
       mov      r8, gword ptr [rsi+8]
       cmp      gword ptr [rbp-18H], r8
       je       SHORT G_M2866_IG10
                                                ;; bbWeight=1    PerfScore 5.00
G_M2866_IG09:
       mov      rcx, rsi
       call     System.Threading.ExecutionContext:RestoreChangedContextToThread(System.Threading.Thread,System.Threading.ExecutionContext,System.Threading.ExecutionContext)
                                                ;; bbWeight=0.50 PerfScore 0.62
G_M2866_IG10:
       nop
                                                ;; bbWeight=1    PerfScore 0.25
G_M2866_IG11:
       lea      rsp, [rbp-08H]
       pop      rsi
       pop      rbp
       ret
                                                ;; bbWeight=1    PerfScore 2.50
G_M2866_IG12:
       push     rbp
       push     rsi
       sub      rsp, 40
       mov      rbp, qword ptr [rcx+32]
       mov      qword ptr [rsp+20H], rbp
       lea      rbp, [rbp+50H]
                                                ;; bbWeight=0    PerfScore 0.00
G_M2866_IG13:
       mov      rdx, gword ptr [rbp-20H]
       mov      rsi, gword ptr [rbp-10H]
       mov      rcx, gword ptr [rbp-20H]
       mov      rax, gword ptr [rbp-10H]
       cmp      rcx, gword ptr [rax+16]
       je       SHORT G_M2866_IG14
       lea      rcx, bword ptr [rsi+16]
       call     CORINFO_HELP_ASSIGN_REF
                                                ;; bbWeight=0    PerfScore 0.00
G_M2866_IG14:
       mov      rdx, gword ptr [rbp-18H]
       mov      r8, gword ptr [rsi+8]
       cmp      gword ptr [rbp-18H], r8
       je       SHORT G_M2866_IG15
       mov      rcx, rsi
       call     System.Threading.ExecutionContext:RestoreChangedContextToThread(System.Threading.Thread,System.Threading.ExecutionContext,System.Threading.ExecutionContext)
                                                ;; bbWeight=0    PerfScore 0.00
G_M2866_IG15:
       nop
                                                ;; bbWeight=0    PerfScore 0.00
G_M2866_IG16:
       add      rsp, 40
       pop      rsi
       pop      rbp
       ret
                                                ;; bbWeight=0    PerfScore 0.00

Changed text

Open file

; Assembly listing for method System.Runtime.CompilerServices.AsyncMethodBuilderCore:Start(byref)
; Emitting BLENDED_CODE for X64 CPU with AVX - Windows
; optimized code
; rbp based frame
; fully interruptible
; Final local variable assignments
;
;  V00 arg0         [V00,T00] (  4,  4   )   byref  ->  rsi
;  V01 loc0         [V01,T03] (  9,  3   )     ref  ->  [rbp-0x10]   EH class-hnd EH-live
;  V02 loc1         [V02,T05] (  5,  1.50)     ref  ->  [rbp-0x18]   EH class-hnd EH-live
;  V03 loc2         [V03,T06] (  5,  1.50)     ref  ->  [rbp-0x20]   EH class-hnd EH-live
;  V04 loc3         [V04,T04] (  6,  2.50)     ref  ->   r8         class-hnd
;  V05 OutArgs      [V05    ] (  1,  1   )  lclBlk (32) [rsp+0x00]   "OutgoingArgSpace"
;  V06 tmp1         [V06,T02] (  2,  4   )     ref  ->  rax         class-hnd "dup spill"
;  V07 tmp2         [V07,T01] (  6,  5.25)     ref  ->  rax
;  V08 PSPSym       [V08    ] (  1,  1   )    long  ->  [rbp-0x30]   do-not-enreg[X] addr-exposed "PSPSym"
;
; Lcl frame size = 72

G_M2866_IG01:
       push     rbp
       push     rsi
       sub      rsp, 72
       lea      rbp, [rsp+50H]
       mov      qword ptr [rbp-30H], rsp
       mov      rsi, rcx
                                                ;; bbWeight=1    PerfScore 4.00
G_M2866_IG02:
       cmp      dword ptr [rsi], esi
       mov      rcx, 0xD1FFAB1E
       mov      edx, 625
       call     CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE
       mov      rax, gword ptr [rax+24]
       test     rax, rax
       jne      SHORT G_M2866_IG04
                                                ;; bbWeight=1    PerfScore 6.75
G_M2866_IG03:
       call     System.Threading.Thread:InitializeCurrentThread():System.Threading.Thread
                                                ;; bbWeight=0.25 PerfScore 0.25
G_M2866_IG04:
       mov      gword ptr [rbp-10H], rax
       mov      rdx, gword ptr [rax+8]
       mov      gword ptr [rbp-18H], rdx
       mov      rax, gword ptr [rax+16]
       mov      gword ptr [rbp-20H], rax
                                                ;; bbWeight=1    PerfScore 7.00
G_M2866_IG05:
       mov      rcx, rsi
       call     <GetResult>d__2:MoveNext():this
       nop
                                                ;; bbWeight=1    PerfScore 1.50
G_M2866_IG06:
       mov      rax, gword ptr [rbp-20H]
       mov      rcx, gword ptr [rbp-10H]
       cmp      rax, gword ptr [rcx+16]
       je       SHORT G_M2866_IG08
                                                ;; bbWeight=1    PerfScore 5.00
G_M2866_IG07:
       lea      rcx, bword ptr [rcx+16]
       mov      rdx, rax
       call     CORINFO_HELP_ASSIGN_REF
       mov      rcx, gword ptr [rbp-10H]
                                                ;; bbWeight=0.50 PerfScore 1.38
G_M2866_IG08:
       mov      r8, gword ptr [rcx+8]
       mov      rdx, gword ptr [rbp-18H]
       cmp      rdx, r8
       je       SHORT G_M2866_IG10
                                                ;; bbWeight=1    PerfScore 4.25
G_M2866_IG09:
       call     System.Threading.ExecutionContext:RestoreChangedContextToThread(System.Threading.Thread,System.Threading.ExecutionContext,System.Threading.ExecutionContext)
                                                ;; bbWeight=0.50 PerfScore 0.50
G_M2866_IG10:
       nop
                                                ;; bbWeight=1    PerfScore 0.25
G_M2866_IG11:
       lea      rsp, [rbp-08H]
       pop      rsi
       pop      rbp
       ret
                                                ;; bbWeight=1    PerfScore 2.50
G_M2866_IG12:
       push     rbp
       push     rsi
       sub      rsp, 40
       mov      rbp, qword ptr [rcx+32]
       mov      qword ptr [rsp+20H], rbp
       lea      rbp, [rbp+50H]
                                                ;; bbWeight=0    PerfScore 0.00
G_M2866_IG13:
       mov      rdx, gword ptr [rbp-20H]
       mov      rcx, gword ptr [rbp-10H]
       cmp      rdx, gword ptr [rcx+16]
       je       SHORT G_M2866_IG14
       lea      rcx, bword ptr [rcx+16]
       call     CORINFO_HELP_ASSIGN_REF
       mov      rcx, gword ptr [rbp-10H]
                                                ;; bbWeight=0    PerfScore 0.00
G_M2866_IG14:
       mov      r8, gword ptr [rcx+8]
       mov      rdx, gword ptr [rbp-18H]
       cmp      rdx, r8
       je       SHORT G_M2866_IG15
       call     System.Threading.ExecutionContext:RestoreChangedContextToThread(System.Threading.Thread,System.Threading.ExecutionContext,System.Threading.ExecutionContext)
                                                ;; bbWeight=0    PerfScore 0.00
G_M2866_IG15:
       nop
                                                ;; bbWeight=0    PerfScore 0.00
G_M2866_IG16:
       add      rsp, 40
       pop      rsi
       pop      rbp
       ret
                                                ;; bbWeight=0    PerfScore 0.00