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8109fb5dfe
Summary: This is patch is part of a series to introduce an Alignment type. See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html See this patch for the introduction of the type: https://reviews.llvm.org/D64790 Reviewers: courbet Subscribers: jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, sbc100, jgravelle-google, hiraditya, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D68993 llvm-svn: 375084
56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
//===-- LanaiFrameLowering.h - Define frame lowering for Lanai --*- C++-*--===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This class implements Lanai-specific bits of TargetFrameLowering class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H
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#define LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H
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#include "llvm/CodeGen/TargetFrameLowering.h"
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namespace llvm {
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class BitVector;
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class LanaiSubtarget;
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class LanaiFrameLowering : public TargetFrameLowering {
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private:
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void determineFrameLayout(MachineFunction &MF) const;
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void replaceAdjDynAllocPseudo(MachineFunction &MF) const;
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protected:
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const LanaiSubtarget &STI;
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public:
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explicit LanaiFrameLowering(const LanaiSubtarget &Subtarget)
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: TargetFrameLowering(StackGrowsDown,
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/*StackAlignment=*/Align(8),
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/*LocalAreaOffset=*/0),
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STI(Subtarget) {}
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// emitProlog/emitEpilog - These methods insert prolog and epilog code into
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// the function.
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void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
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void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
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MachineBasicBlock::iterator
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eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I) const override;
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bool hasFP(const MachineFunction & /*MF*/) const override { return true; }
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void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
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RegScavenger *RS = nullptr) const override;
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};
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} // namespace llvm
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#endif // LLVM_LIB_TARGET_LANAI_LANAIFRAMELOWERING_H
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