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Imported Upstream version 5.18.0.207

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Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449
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Xamarin Public Jenkins (auto-signing)
2018-11-17 08:23:10 +00:00
parent 8e12397d70
commit eb85e2fc17
28480 changed files with 72 additions and 3866936 deletions
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78
external/llvm/lib/Target/ARC/ARCFrameLowering.h vendored
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//===- ARCFrameLowering.h - Define frame lowering for ARC -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This class implements the ARC specific frame lowering.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_ARC_ARCFRAMELOWERING_H
#define LLVM_LIB_TARGET_ARC_ARCFRAMELOWERING_H
#include "ARC.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/TargetFrameLowering.h"
namespace llvm {
class MachineFunction;
class ARCSubtarget;
class ARCInstrInfo;
class ARCFrameLowering : public TargetFrameLowering {
public:
ARCFrameLowering(const ARCSubtarget &st)
: TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 4, 0), ST(st) {
}
/// Insert Prologue into the function.
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
/// Insert Epilogue into the function.
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
/// Add explicit callee save registers.
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
RegScavenger *RS) const override;
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
const std::vector<CalleeSavedInfo> &CSI,
const TargetRegisterInfo *TRI) const override;
bool
restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
std::vector<CalleeSavedInfo> &CSI,
const TargetRegisterInfo *TRI) const override;
void processFunctionBeforeFrameFinalized(MachineFunction &MF,
RegScavenger *RS) const override;
bool hasFP(const MachineFunction &MF) const override;
MachineBasicBlock::iterator
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const override;
bool assignCalleeSavedSpillSlots(
llvm::MachineFunction &, const llvm::TargetRegisterInfo *,
std::vector<llvm::CalleeSavedInfo> &) const override;
private:
void adjustStackToMatchRecords(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
bool allocate) const;
const ARCSubtarget &ST;
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_ARC_ARCFRAMELOWERING_H