-extrn X86CompilationCallback2: PROC
+;;===-- X86CompilationCallback_Win64.asm - Implement Win64 JIT callback ---===
+;;
+;; The LLVM Compiler Infrastructure
+;;
+;; This file is distributed under the University of Illinois Open Source
+;; License. See LICENSE.TXT for details.
+;;
+;;===----------------------------------------------------------------------===
+;;
+;; This file implements the JIT interfaces for the X86 target.
+;;
+;;===----------------------------------------------------------------------===
+
+extrn LLVMX86CompilationCallback2: PROC
.code
X86CompilationCallback proc
push rbp
- ; Save RSP
+ ; Save RSP.
mov rbp, rsp
; Save all int arg registers
+ ; WARNING: We cannot use register spill area - we're generating stubs by hands!
push rcx
push rdx
push r8
; Align stack on 16-byte boundary.
and rsp, -16
- ; Save all XMM arg registers
- sub rsp, 64
- movaps [rsp], xmm0
- movaps [rsp+16], xmm1
- movaps [rsp+32], xmm2
- movaps [rsp+48], xmm3
+ ; Save all XMM arg registers. Also allocate reg spill area.
+ sub rsp, 96
+ movaps [rsp +32], xmm0
+ movaps [rsp+16+32], xmm1
+ movaps [rsp+32+32], xmm2
+ movaps [rsp+48+32], xmm3
; JIT callee
- ; Pass prev frame and return address
+ ; Pass prev frame and return address.
mov rcx, rbp
mov rdx, qword ptr [rbp+8]
- call X86CompilationCallback2
+ call LLVMX86CompilationCallback2
- ; Restore all XMM arg registers
- movaps xmm3, [rsp+48]
- movaps xmm2, [rsp+32]
- movaps xmm1, [rsp+16]
- movaps xmm0, [rsp]
+ ; Restore all XMM arg registers.
+ movaps xmm3, [rsp+48+32]
+ movaps xmm2, [rsp+32+32]
+ movaps xmm1, [rsp+16+32]
+ movaps xmm0, [rsp +32]
- ; Restore RSP
+ ; Restore RSP.
mov rsp, rbp
; Restore all int arg registers
pop rdx
pop rcx
- ; Restore RBP
+ ; Restore RBP.
pop rbp
ret
X86CompilationCallback endp