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Current Path: /usr/src/contrib/llvm-project/llvm/lib/Target/XCore

usr / src / contrib / llvm-project / llvm / lib / Target / XCore /

📁 ..
📁 Disassembler
📁 MCTargetDesc
📁 TargetInfo
📄 XCore.h(1.13 KB)
📄 XCore.td(1.7 KB)
📄 XCoreAsmPrinter.cpp(10.24 KB)
📄 XCoreCallingConv.td(1.62 KB)
📄 XCoreFrameLowering.cpp(24.02 KB)
📄 XCoreFrameLowering.h(2.35 KB)
📄 XCoreFrameToArgsOffsetElim.cpp(2.27 KB)
📄 XCoreISelDAGToDAG.cpp(10.31 KB)
📄 XCoreISelLowering.cpp(75.02 KB)
📄 XCoreISelLowering.h(8.8 KB)
📄 XCoreInstrFormats.td(8.66 KB)
📄 XCoreInstrInfo.cpp(15.16 KB)
📄 XCoreInstrInfo.h(4.02 KB)
📄 XCoreInstrInfo.td(50.2 KB)
📄 XCoreLowerThreadLocal.cpp(8.17 KB)
📄 XCoreMCInstLower.cpp(3.79 KB)
📄 XCoreMCInstLower.h(1.24 KB)
📄 XCoreMachineFunctionInfo.cpp(2.93 KB)
📄 XCoreMachineFunctionInfo.h(2.89 KB)
📄 XCoreRegisterInfo.cpp(10.28 KB)
📄 XCoreRegisterInfo.h(1.59 KB)
📄 XCoreRegisterInfo.td(1.88 KB)
📄 XCoreSelectionDAGInfo.cpp(2.03 KB)
📄 XCoreSelectionDAGInfo.h(1.18 KB)
📄 XCoreSubtarget.cpp(1.07 KB)
📄 XCoreSubtarget.h(2.1 KB)
📄 XCoreTargetMachine.cpp(3.53 KB)
📄 XCoreTargetMachine.h(1.81 KB)
📄 XCoreTargetObjectFile.cpp(6.47 KB)
📄 XCoreTargetObjectFile.h(1.42 KB)
📄 XCoreTargetStreamer.h(887 B)
📄 XCoreTargetTransformInfo.h(1.76 KB)

Editing: XCoreMachineFunctionInfo.cpp

//===-- XCoreMachineFunctionInfo.cpp - XCore machine function info --------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "XCoreMachineFunctionInfo.h"
#include "XCoreInstrInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/Function.h"

using namespace llvm;

void XCoreFunctionInfo::anchor() { }

bool XCoreFunctionInfo::isLargeFrame(const MachineFunction &MF) const {
  if (CachedEStackSize == -1) {
    CachedEStackSize = MF.getFrameInfo().estimateStackSize(MF);
  }
  // isLargeFrame() is used when deciding if spill slots should be added to
  // allow eliminateFrameIndex() to scavenge registers.
  // This is only required when there is no FP and offsets are greater than
  // ~256KB (~64Kwords). Thus only for code run on the emulator!
  //
  // The arbitrary value of 0xf000 allows frames of up to ~240KB before spill
  // slots are added for the use of eliminateFrameIndex() register scavenging.
  // For frames less than 240KB, it is assumed that there will be less than
  // 16KB of function arguments.
  return CachedEStackSize > 0xf000;
}

int XCoreFunctionInfo::createLRSpillSlot(MachineFunction &MF) {
  if (LRSpillSlotSet) {
    return LRSpillSlot;
  }
  const TargetRegisterClass &RC = XCore::GRRegsRegClass;
  const TargetRegisterInfo &TRI = *MF.getSubtarget().getRegisterInfo();
  MachineFrameInfo &MFI = MF.getFrameInfo();
  if (! MF.getFunction().isVarArg()) {
    // A fixed offset of 0 allows us to save / restore LR using entsp / retsp.
    LRSpillSlot = MFI.CreateFixedObject(TRI.getSpillSize(RC), 0, true);
  } else {
    LRSpillSlot = MFI.CreateStackObject(TRI.getSpillSize(RC),
                                        TRI.getSpillAlign(RC), true);
  }
  LRSpillSlotSet = true;
  return LRSpillSlot;
}

int XCoreFunctionInfo::createFPSpillSlot(MachineFunction &MF) {
  if (FPSpillSlotSet) {
    return FPSpillSlot;
  }
  const TargetRegisterClass &RC = XCore::GRRegsRegClass;
  const TargetRegisterInfo &TRI = *MF.getSubtarget().getRegisterInfo();
  MachineFrameInfo &MFI = MF.getFrameInfo();
  FPSpillSlot =
      MFI.CreateStackObject(TRI.getSpillSize(RC), TRI.getSpillAlign(RC), true);
  FPSpillSlotSet = true;
  return FPSpillSlot;
}

const int* XCoreFunctionInfo::createEHSpillSlot(MachineFunction &MF) {
  if (EHSpillSlotSet) {
    return EHSpillSlot;
  }
  const TargetRegisterClass &RC = XCore::GRRegsRegClass;
  const TargetRegisterInfo &TRI = *MF.getSubtarget().getRegisterInfo();
  MachineFrameInfo &MFI = MF.getFrameInfo();
  unsigned Size = TRI.getSpillSize(RC);
  Align Alignment = TRI.getSpillAlign(RC);
  EHSpillSlot[0] = MFI.CreateStackObject(Size, Alignment, true);
  EHSpillSlot[1] = MFI.CreateStackObject(Size, Alignment, true);
  EHSpillSlotSet = true;
  return EHSpillSlot;
}

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Editing: XCoreMachineFunctionInfo.cpp

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