1*0b57cec5SDimitry Andric //===-- X86MachineFunctionInfo.cpp - X86 machine function info ------------===//
2*0b57cec5SDimitry Andric //
3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*0b57cec5SDimitry Andric //
7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===//
8*0b57cec5SDimitry Andric 
9*0b57cec5SDimitry Andric #include "X86MachineFunctionInfo.h"
10*0b57cec5SDimitry Andric #include "X86RegisterInfo.h"
11*0b57cec5SDimitry Andric #include "llvm/CodeGen/MachineRegisterInfo.h"
12*0b57cec5SDimitry Andric #include "llvm/CodeGen/TargetSubtargetInfo.h"
13*0b57cec5SDimitry Andric 
14*0b57cec5SDimitry Andric using namespace llvm;
15*0b57cec5SDimitry Andric 
clone(BumpPtrAllocator & Allocator,MachineFunction & DestMF,const DenseMap<MachineBasicBlock *,MachineBasicBlock * > & Src2DstMBB) const16*0b57cec5SDimitry Andric MachineFunctionInfo *X86MachineFunctionInfo::clone(
17*0b57cec5SDimitry Andric     BumpPtrAllocator &Allocator, MachineFunction &DestMF,
18*0b57cec5SDimitry Andric     const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)
19*0b57cec5SDimitry Andric     const {
20*0b57cec5SDimitry Andric   return DestMF.cloneInfo<X86MachineFunctionInfo>(*this);
21*0b57cec5SDimitry Andric }
22*0b57cec5SDimitry Andric 
anchor()23*0b57cec5SDimitry Andric void X86MachineFunctionInfo::anchor() { }
24*0b57cec5SDimitry Andric 
setRestoreBasePointer(const MachineFunction * MF)25*0b57cec5SDimitry Andric void X86MachineFunctionInfo::setRestoreBasePointer(const MachineFunction *MF) {
26*0b57cec5SDimitry Andric   if (!RestoreBasePointerOffset) {
27*0b57cec5SDimitry Andric     const X86RegisterInfo *RegInfo = static_cast<const X86RegisterInfo *>(
28*0b57cec5SDimitry Andric       MF->getSubtarget().getRegisterInfo());
29*0b57cec5SDimitry Andric     unsigned SlotSize = RegInfo->getSlotSize();
30*0b57cec5SDimitry Andric     for (const MCPhysReg *CSR = MF->getRegInfo().getCalleeSavedRegs();
31          unsigned Reg = *CSR; ++CSR) {
32       if (X86::GR64RegClass.contains(Reg) || X86::GR32RegClass.contains(Reg))
33         RestoreBasePointerOffset -= SlotSize;
34     }
35   }
36 }
37 
38