CG1-compiled ReadFileNative

ReadFileNative.CG1

Int32 System.IO.FileStream.ReadFileNative(Microsoft.Win32.SafeHandles.SafeFileHandle, System.Span`1<Byte>, System.Threading.NativeOverlapped*, ref Int32)
Handle: 0x06004CEA
Rid: 19690
Number of RuntimeFunctions: 1
Number of fixups: 3
    handle != null (STRING_HANDLE)
    Async IO and overlapped parameters inconsistent in call to ReadFileNative. (STRING_HANDLE)
    System.Span`1<byte> (TYPE_HANDLE)

Int32 System.IO.FileStream.ReadFileNative(Microsoft.Win32.SafeHandles.SafeFileHandle, System.Span`1<Byte>, System.Threading.NativeOverlapped*, ref Int32)
Size: 317 bytes
Version:            1
Flags:              0x03 EHANDLER UHANDLER
SizeOfProlog:       0x0010
CountOfUnwindCodes: 9
FrameRegister:      RAX
FrameOffset:        0x0
UnwindCode[0]: CodeOffset 0x0010 FrameOffset 0x6210 NextOffset 0x-1 Op 56
UnwindCode[1]: CodeOffset 0x000C FrameOffset 0x300C NextOffset 0x-1 Op RBX(3)
UnwindCode[2]: CodeOffset 0x000B FrameOffset 0x600B NextOffset 0x-1 Op RSI(6)
UnwindCode[3]: CodeOffset 0x000A FrameOffset 0x700A NextOffset 0x-1 Op RDI(7)
UnwindCode[4]: CodeOffset 0x0009 FrameOffset 0xC009 NextOffset 0x-1 Op R12(12)
UnwindCode[5]: CodeOffset 0x0007 FrameOffset 0xD007 NextOffset 0x-1 Op R13(13)
UnwindCode[6]: CodeOffset 0x0005 FrameOffset 0xE005 NextOffset 0x-1 Op R14(14)
UnwindCode[7]: CodeOffset 0x0003 FrameOffset 0xF003 NextOffset 0x-1 Op R15(15)
UnwindCode[8]: CodeOffset 0x0001 FrameOffset 0x5001 NextOffset 0x-1 Op RBP(5)

Debug Info
    Bounds:
    IL Offset: 0xFFFFFFFE, Source Types: StackEmpty
    IL Offset: 0x0, Source Types: StackEmpty
    IL Offset: 0xE, Source Types: StackEmpty
    IL Offset: 0x16, Source Types: StackEmpty
    IL Offset: 0x1B, Source Types: StackEmpty
    IL Offset: 0x23, Source Types: StackEmpty
    IL Offset: 0x2A, Source Types: StackEmpty
    IL Offset: 0x2D, Source Types: StackEmpty
    IL Offset: 0xFFFFFFFF, Source Types: StackEmpty
    IL Offset: 0x38, Source Types: StackEmpty
    IL Offset: 0x3A, Source Types: StackEmpty
    IL Offset: 0x41, Source Types: StackEmpty
    IL Offset: 0x44, Source Types: StackEmpty
    IL Offset: 0x78, Source Types: StackEmpty
    IL Offset: 0x7B, Source Types: StackEmpty
    IL Offset: 0x87, Source Types: StackEmpty
    IL Offset: 0xFFFFFFFD, Source Types: StackEmpty
    IL Offset: 0x89, Source Types: StackEmpty
    IL Offset: 0x8D, Source Types: StackEmpty
    IL Offset: 0xFFFFFFFD, Source Types: StackEmpty

    Variable Locations:
    Variable Number: 0
    Start Offset: 0x0
    End Offset: 0x24
    Loc Type: VLT_REG
    Register: RCX

    Variable Number: 1
    Start Offset: 0x0
    End Offset: 0x24
    Loc Type: VLT_REG
    Register: RDX

    Variable Number: 2
    Start Offset: 0x0
    End Offset: 0x24
    Loc Type: VLT_REG
    Register: R8

    Variable Number: 3
    Start Offset: 0x0
    End Offset: 0x24
    Loc Type: VLT_REG
    Register: R9

    Variable Number: 4
    Start Offset: 0x0
    End Offset: 0x24
    Loc Type: VLT_STK
    Base Register: RSP
    Stack Offset: 40

    Variable Number: 3
    Start Offset: 0x2B
    End Offset: 0xC4
    Loc Type: VLT_REG
    Register: RBX

    Variable Number: 1
    Start Offset: 0x2B
    End Offset: 0xD0
    Loc Type: VLT_REG
    Register: RDI

    Variable Number: 7
    Start Offset: 0xC4
    End Offset: 0xD3
    Loc Type: VLT_REG
    Register: RDX

    Variable Number: 1
    Start Offset: 0xDE
    End Offset: 0xE3
    Loc Type: VLT_REG
    Register: RDI

    Variable Number: 7
    Start Offset: 0xDE
    End Offset: 0xE6
    Loc Type: VLT_REG
    Register: RDX

    Variable Number: 0
    Start Offset: 0x2B
    End Offset: 0xFC
    Loc Type: VLT_REG
    Register: RSI

    Variable Number: 4
    Start Offset: 0x2B
    End Offset: 0x109
    Loc Type: VLT_STK
    Base Register: RBP
    Stack Offset: 48

    Variable Number: 4
    Start Offset: 0x121
    End Offset: 0x127
    Loc Type: VLT_STK
    Base Register: RBP
    Stack Offset: 48

    push rbp
    UWOP_PUSH_NONVOL RBP(5)
    push r15
    UWOP_PUSH_NONVOL R15(15)
    push r14
    UWOP_PUSH_NONVOL R14(14)
    push r13
    UWOP_PUSH_NONVOL R13(13)
    push r12
    UWOP_PUSH_NONVOL R12(12)
    push rdi
    UWOP_PUSH_NONVOL RDI(7)
    push rsi
    UWOP_PUSH_NONVOL RSI(6)
    push rbx
    UWOP_PUSH_NONVOL RBX(3)
    sub rsp, 56
    UWOP_ALLOC_SMALL 56
    lea rbp, [rsp + 112]
    xor eax, eax
    mov qword ptr [rbp - 72], rax
    mov rsi, rcx
    mov rdi, rdx
    mov rbx, r9
    mov r14, qword ptr [r8]
    mov r15d, dword ptr [r8 + 8]
    mov r12, qword ptr [ (STRING_HANDLE)]
    mov r13, qword ptr [r12]
    test rdi, rdi
    jne 0x005F
    call qword ptr [System.Diagnostics.Debug (STATIC_BASE_GC)]
    mov rcx, qword ptr [rax + 5712]
    mov rdx, qword ptr [handle != null (STRING_HANDLE)]
    mov rdx, qword ptr [rdx]
    mov r8, r13
    mov rax, qword ptr [rcx]
    mov rax, qword ptr [rax + 72]
    call qword ptr [rax + 32]
    movzx eax, byte ptr [rsi + 108]
    test eax, eax
    je 0x006C
    test rbx, rbx
    jne 0x007F
    test eax, eax
    jne 0x007B
    test rbx, rbx
    sete al
    movzx eax, al
    jmp 0x0084
    xor eax, eax
    jmp 0x0084
    mov eax, 1
    mov r12, qword ptr [r12]
    test al, al
    jne 0x00B0
    call qword ptr [System.Diagnostics.Debug (STATIC_BASE_GC)]
    mov rcx, qword ptr [rax + 5712]
    mov rdx, qword ptr [Async IO and overlapped parameters inconsistent in call to ReadFileNative. (STRING_HANDLE)]
    mov rdx, qword ptr [rdx]
    mov r8, r12
    mov rax, qword ptr [rcx]
    mov rax, qword ptr [rax + 72]
    call qword ptr [rax + 32]
    xor r9d, r9d
    mov dword ptr [rbp - 64], r9d
    mov qword ptr [rbp - 72], r14
    mov rdx, r14
    cmp byte ptr [rsi + 108], 0
    jne 0x00DE
    xor r9d, r9d
    mov qword ptr [rsp + 32], r9
    lea r9, [rbp - 64]
    mov rcx, rdi
    mov r8d, r15d
    call qword ptr [Int32 Interop+Kernel32.ReadFile(System.Runtime.InteropServices.SafeHandle, Byte*, Int32, ref Int32, IntPtr) (METHOD_ENTRY)]
    jmp 0x00F2
    mov qword ptr [rsp + 32], rbx
    mov rcx, rdi
    mov r8d, r15d
    xor r9d, r9d
    call qword ptr [Int32 Interop+Kernel32.ReadFile(System.Runtime.InteropServices.SafeHandle, Byte*, Int32, IntPtr, System.Threading.NativeOverlapped*) (METHOD_ENTRY)]
    xor ecx, ecx
    mov qword ptr [rbp - 72], rcx
    test eax, eax
    jne 0x0121
    mov rcx, rsi
    call qword ptr [Int32 System.IO.FileStream.GetLastWin32ErrorAndDisposeHandleIfInvalid() (METHOD_ENTRY)]
    mov rsi, qword ptr [rbp + 48]
    mov dword ptr [rsi], eax
    mov eax, 4294967295
    lea rsp, [rbp - 56]
    pop rbx
    pop rsi
    pop rdi
    pop r12
    pop r13
    pop r14
    pop r15
    pop rbp
    ret
    xor eax, eax
    mov rsi, qword ptr [rbp + 48]
    mov dword ptr [rsi], eax
    mov eax, dword ptr [rbp - 64]
    lea rsp, [rbp - 56]
    pop rbx
    pop rsi
    pop rdi
    pop r12
    pop r13
    pop r14
    pop r15
    pop rbp
    ret