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📁 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: XCoreFrameToArgsOffsetElim.cpp

//===-- XCoreFrameToArgsOffsetElim.cpp ----------------------------*- C++ -*-=//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Replace Pseudo FRAME_TO_ARGS_OFFSET with the appropriate real offset.
//
//===----------------------------------------------------------------------===//

#include "XCore.h"
#include "XCoreInstrInfo.h"
#include "XCoreSubtarget.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
using namespace llvm;

namespace {
  struct XCoreFTAOElim : public MachineFunctionPass {
    static char ID;
    XCoreFTAOElim() : MachineFunctionPass(ID) {}

bool runOnMachineFunction(MachineFunction &Fn) override;
    MachineFunctionProperties getRequiredProperties() const override {
      return MachineFunctionProperties().set(
          MachineFunctionProperties::Property::NoVRegs);
    }

StringRef getPassName() const override {
      return "XCore FRAME_TO_ARGS_OFFSET Elimination";
    }
  };
  char XCoreFTAOElim::ID = 0;
}

/// createXCoreFrameToArgsOffsetEliminationPass - returns an instance of the
/// Frame to args offset elimination pass
FunctionPass *llvm::createXCoreFrameToArgsOffsetEliminationPass() {
  return new XCoreFTAOElim();
}

bool XCoreFTAOElim::runOnMachineFunction(MachineFunction &MF) {
  const XCoreInstrInfo &TII =
      *static_cast<const XCoreInstrInfo *>(MF.getSubtarget().getInstrInfo());
  unsigned StackSize = MF.getFrameInfo().getStackSize();
  for (MachineFunction::iterator MFI = MF.begin(), E = MF.end(); MFI != E;
       ++MFI) {
    MachineBasicBlock &MBB = *MFI;
    for (MachineBasicBlock::iterator MBBI = MBB.begin(), EE = MBB.end();
         MBBI != EE; ++MBBI) {
      if (MBBI->getOpcode() == XCore::FRAME_TO_ARGS_OFFSET) {
        MachineInstr &OldInst = *MBBI;
        Register Reg = OldInst.getOperand(0).getReg();
        MBBI = TII.loadImmediate(MBB, MBBI, Reg, StackSize);
        OldInst.eraseFromParent();
      }
    }
  }
  return true;
}

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Editing: XCoreFrameToArgsOffsetElim.cpp

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