/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/lib/Target/Lanai/LanaiFrameLowering.h
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1 | | //===-- LanaiFrameLowering.h - Define frame lowering for Lanai --*- C++-*--===// |
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 class implements Lanai-specific bits of TargetFrameLowering class. |
11 | | // |
12 | | //===----------------------------------------------------------------------===// |
13 | | |
14 | | #ifndef LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H |
15 | | #define LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H |
16 | | |
17 | | #include "Lanai.h" |
18 | | #include "llvm/Target/TargetFrameLowering.h" |
19 | | |
20 | | namespace llvm { |
21 | | |
22 | | class BitVector; |
23 | | class LanaiSubtarget; |
24 | | |
25 | | class LanaiFrameLowering : public TargetFrameLowering { |
26 | | private: |
27 | | void determineFrameLayout(MachineFunction &MF) const; |
28 | | void replaceAdjDynAllocPseudo(MachineFunction &MF) const; |
29 | | |
30 | | protected: |
31 | | const LanaiSubtarget &STI; |
32 | | |
33 | | public: |
34 | | explicit LanaiFrameLowering(const LanaiSubtarget &Subtarget) |
35 | | : TargetFrameLowering(StackGrowsDown, |
36 | | /*StackAlignment=*/8, |
37 | | /*LocalAreaOffset=*/0), |
38 | 26 | STI(Subtarget) {} |
39 | | |
40 | | // emitProlog/emitEpilog - These methods insert prolog and epilog code into |
41 | | // the function. |
42 | | void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override; |
43 | | void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override; |
44 | | |
45 | | MachineBasicBlock::iterator |
46 | | eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, |
47 | | MachineBasicBlock::iterator I) const override; |
48 | | |
49 | 297 | bool hasFP(const MachineFunction & /*MF*/) const override { return true; } |
50 | | |
51 | | void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, |
52 | | RegScavenger *RS = nullptr) const override; |
53 | | }; |
54 | | |
55 | | } // namespace llvm |
56 | | |
57 | | #endif // LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H |