/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/lib/Target/BPF/BPFFrameLowering.cpp
Line | Count | Source |
1 | | //===-- BPFFrameLowering.cpp - BPF Frame Information ----------------------===// |
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 contains the BPF implementation of TargetFrameLowering class. |
11 | | // |
12 | | //===----------------------------------------------------------------------===// |
13 | | |
14 | | #include "BPFFrameLowering.h" |
15 | | #include "BPFInstrInfo.h" |
16 | | #include "BPFSubtarget.h" |
17 | | #include "llvm/CodeGen/MachineFrameInfo.h" |
18 | | #include "llvm/CodeGen/MachineFunction.h" |
19 | | #include "llvm/CodeGen/MachineInstrBuilder.h" |
20 | | #include "llvm/CodeGen/MachineRegisterInfo.h" |
21 | | |
22 | | using namespace llvm; |
23 | | |
24 | 347 | bool BPFFrameLowering::hasFP(const MachineFunction &MF) const { return true; } |
25 | | |
26 | | void BPFFrameLowering::emitPrologue(MachineFunction &MF, |
27 | 147 | MachineBasicBlock &MBB) const {} |
28 | | |
29 | | void BPFFrameLowering::emitEpilogue(MachineFunction &MF, |
30 | 148 | MachineBasicBlock &MBB) const {} |
31 | | |
32 | | void BPFFrameLowering::determineCalleeSaves(MachineFunction &MF, |
33 | | BitVector &SavedRegs, |
34 | 147 | RegScavenger *RS) const { |
35 | 147 | TargetFrameLowering::determineCalleeSaves(MF, SavedRegs, RS); |
36 | 147 | SavedRegs.reset(BPF::R6); |
37 | 147 | SavedRegs.reset(BPF::R7); |
38 | 147 | SavedRegs.reset(BPF::R8); |
39 | 147 | SavedRegs.reset(BPF::R9); |
40 | 147 | } |