// Do not pass the sret argument in RCX, the Win64 thiscall calling
// convention requires "this" to be passed in RCX.
- CCIfCC<"CallingConv::Win64_ThisCall",
+ CCIfCC<"CallingConv::X86_ThisCall",
CCIfSRet<CCIfType<[i64], CCAssignToRegWithShadow<[RDX , R8 , R9 ],
[XMM1, XMM2, XMM3]>>>>,