lib/Target/X86/X86CompilationCallback_Win64.asm

   1 ;;===-- X86CompilationCallback_Win64.asm - Implement Win64 JIT callback ---===
   2 ;;
   3 ;;                     The LLVM Compiler Infrastructure
   4 ;;
   5 ;; This file is distributed under the University of Illinois Open Source
   6 ;; License. See LICENSE.TXT for details.
   7 ;;
   8 ;;===----------------------------------------------------------------------===
   9 ;;
  10 ;; This file implements the JIT interfaces for the X86 target.
  11 ;;
  12 ;;===----------------------------------------------------------------------===
  13
  14 extrn X86CompilationCallback2: PROC
  15
  16 .code
  17 X86CompilationCallback proc
  18     push    rbp
  19
  20     ; Save RSP
  21     mov     rbp, rsp
  22
  23     ; Save all int arg registers
  24     push    rcx
  25     push    rdx
  26     push    r8
  27     push    r9
  28
  29     ; Align stack on 16-byte boundary.
  30     and     rsp, -16
  31
  32     ; Save all XMM arg registers
  33     sub     rsp, 64
  34     movaps  [rsp],     xmm0
  35     movaps  [rsp+16],  xmm1
  36     movaps  [rsp+32],  xmm2
  37     movaps  [rsp+48],  xmm3
  38
  39     ; JIT callee
  40
  41     ; Pass prev frame and return address
  42     mov     rcx, rbp
  43     mov     rdx, qword ptr [rbp+8]
  44     call    X86CompilationCallback2
  45
  46     ; Restore all XMM arg registers
  47     movaps  xmm3, [rsp+48]
  48     movaps  xmm2, [rsp+32]
  49     movaps  xmm1, [rsp+16]
  50     movaps  xmm0, [rsp]
  51
  52     ; Restore RSP
  53     mov     rsp, rbp
  54
  55     ; Restore all int arg registers
  56     sub     rsp, 32
  57     pop     r9
  58     pop     r8
  59     pop     rdx
  60     pop     rcx
  61
  62     ; Restore RBP
  63     pop     rbp
  64     ret
  65 X86CompilationCallback endp
  66
  67 End