Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/lib/Target/Sparc/SparcFrameLowering.h
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//===-- SparcFrameLowering.h - Define frame lowering for Sparc --*- 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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//
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPARC_SPARCFRAMELOWERING_H
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#define LLVM_LIB_TARGET_SPARC_SPARCFRAMELOWERING_H
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#include "Sparc.h"
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#include "llvm/CodeGen/TargetFrameLowering.h"
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namespace llvm {
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class SparcSubtarget;
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class SparcFrameLowering : public TargetFrameLowering {
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public:
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  explicit SparcFrameLowering(const SparcSubtarget &ST);
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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,
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                                MachineBasicBlock &MBB,
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                                MachineBasicBlock::iterator I) const override;
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  bool hasReservedCallFrame(const MachineFunction &MF) const override;
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  bool hasFP(const MachineFunction &MF) const override;
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  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
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                            RegScavenger *RS = nullptr) const override;
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  int getFrameIndexReference(const MachineFunction &MF, int FI,
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                             unsigned &FrameReg) const override;
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  /// targetHandlesStackFrameRounding - Returns true if the target is
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  /// responsible for rounding up the stack frame (probably at emitPrologue
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  /// time).
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  bool targetHandlesStackFrameRounding() const override { return true; }
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private:
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  // Remap input registers to output registers for leaf procedure.
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  void remapRegsForLeafProc(MachineFunction &MF) const;
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  // Returns true if MF is a leaf procedure.
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  bool isLeafProc(MachineFunction &MF) const;
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  // Emits code for adjusting SP in function prologue/epilogue.
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  void emitSPAdjustment(MachineFunction &MF,
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                        MachineBasicBlock &MBB,
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                        MachineBasicBlock::iterator MBBI,
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                        int NumBytes, unsigned ADDrr, unsigned ADDri) const;
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};
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} // End llvm namespace
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#endif