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

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

📁 ..
📁 MCTargetDesc
📄 ManagedStringPool.h(1.41 KB)
📄 NVPTX.h(3.22 KB)
📄 NVPTX.td(4.99 KB)
📄 NVPTXAllocaHoisting.cpp(2.12 KB)
📄 NVPTXAllocaHoisting.h(755 B)
📄 NVPTXAsmPrinter.cpp(71.02 KB)
📄 NVPTXAsmPrinter.h(11.23 KB)
📄 NVPTXAssignValidGlobalNames.cpp(2.74 KB)
📄 NVPTXFrameLowering.cpp(3.41 KB)
📄 NVPTXFrameLowering.h(1.34 KB)
📄 NVPTXGenericToNVVM.cpp(11.59 KB)
📄 NVPTXISelDAGToDAG.cpp(134.03 KB)
📄 NVPTXISelDAGToDAG.h(3.54 KB)
📄 NVPTXISelLowering.cpp(198.59 KB)
📄 NVPTXISelLowering.h(15.65 KB)
📄 NVPTXImageOptimizer.cpp(5.64 KB)
📄 NVPTXInstrFormats.td(1.72 KB)
📄 NVPTXInstrInfo.cpp(7.88 KB)
📄 NVPTXInstrInfo.h(2.87 KB)
📄 NVPTXInstrInfo.td(133.35 KB)
📄 NVPTXIntrinsics.td(329.76 KB)
📄 NVPTXLowerAggrCopies.cpp(4.85 KB)
📄 NVPTXLowerAggrCopies.h(744 B)
📄 NVPTXLowerAlloca.cpp(4.27 KB)
📄 NVPTXLowerArgs.cpp(9.16 KB)
📄 NVPTXMCExpr.cpp(2.04 KB)
📄 NVPTXMCExpr.h(3.92 KB)
📄 NVPTXMachineFunctionInfo.h(1.71 KB)
📄 NVPTXPeephole.cpp(4.92 KB)
📄 NVPTXPrologEpilogPass.cpp(8.91 KB)
📄 NVPTXProxyRegErasure.cpp(3.81 KB)
📄 NVPTXRegisterInfo.cpp(4.41 KB)
📄 NVPTXRegisterInfo.h(2.04 KB)
📄 NVPTXRegisterInfo.td(3.12 KB)
📄 NVPTXReplaceImageHandles.cpp(6.27 KB)
📄 NVPTXSubtarget.cpp(2.15 KB)
📄 NVPTXSubtarget.h(3.02 KB)
📄 NVPTXTargetMachine.cpp(14.25 KB)
📄 NVPTXTargetMachine.h(3.33 KB)
📄 NVPTXTargetObjectFile.h(1.53 KB)
📄 NVPTXTargetTransformInfo.cpp(6.18 KB)
📄 NVPTXTargetTransformInfo.h(4.7 KB)
📄 NVPTXUtilities.cpp(9.37 KB)
📄 NVPTXUtilities.h(2.03 KB)
📄 NVVMIntrRange.cpp(4.88 KB)
📄 NVVMReflect.cpp(6.8 KB)
📁 TargetInfo
📄 cl_common_defines.h(3.94 KB)

Editing: NVPTXFrameLowering.cpp

//=======- NVPTXFrameLowering.cpp - NVPTX Frame Information ---*- 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
//
//===----------------------------------------------------------------------===//
//
// This file contains the NVPTX implementation of TargetFrameLowering class.
//
//===----------------------------------------------------------------------===//

#include "NVPTXFrameLowering.h"
#include "NVPTX.h"
#include "NVPTXRegisterInfo.h"
#include "NVPTXSubtarget.h"
#include "NVPTXTargetMachine.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/MC/MachineLocation.h"

using namespace llvm;

NVPTXFrameLowering::NVPTXFrameLowering()
    : TargetFrameLowering(TargetFrameLowering::StackGrowsUp, Align(8), 0) {}

bool NVPTXFrameLowering::hasFP(const MachineFunction &MF) const { return true; }

void NVPTXFrameLowering::emitPrologue(MachineFunction &MF,
                                      MachineBasicBlock &MBB) const {
  if (MF.getFrameInfo().hasStackObjects()) {
    assert(&MF.front() == &MBB && "Shrink-wrapping not yet supported");
    MachineInstr *MI = &MBB.front();
    MachineRegisterInfo &MR = MF.getRegInfo();

// This instruction really occurs before first instruction
    // in the BB, so giving it no debug location.
    DebugLoc dl = DebugLoc();

// Emits
    //   mov %SPL, %depot;
    //   cvta.local %SP, %SPL;
    // for local address accesses in MF.
    bool Is64Bit =
        static_cast<const NVPTXTargetMachine &>(MF.getTarget()).is64Bit();
    unsigned CvtaLocalOpcode =
        (Is64Bit ? NVPTX::cvta_local_yes_64 : NVPTX::cvta_local_yes);
    unsigned MovDepotOpcode =
        (Is64Bit ? NVPTX::MOV_DEPOT_ADDR_64 : NVPTX::MOV_DEPOT_ADDR);
    if (!MR.use_empty(NVPTX::VRFrame)) {
      // If %SP is not used, do not bother emitting "cvta.local %SP, %SPL".
      MI = BuildMI(MBB, MI, dl,
                   MF.getSubtarget().getInstrInfo()->get(CvtaLocalOpcode),
                   NVPTX::VRFrame)
               .addReg(NVPTX::VRFrameLocal);
    }
    BuildMI(MBB, MI, dl, MF.getSubtarget().getInstrInfo()->get(MovDepotOpcode),
            NVPTX::VRFrameLocal)
        .addImm(MF.getFunctionNumber());
  }
}

int NVPTXFrameLowering::getFrameIndexReference(const MachineFunction &MF,
                                               int FI,
                                               Register &FrameReg) const {
  const MachineFrameInfo &MFI = MF.getFrameInfo();
  FrameReg = NVPTX::VRDepot;
  return MFI.getObjectOffset(FI) - getOffsetOfLocalArea();
}

void NVPTXFrameLowering::emitEpilogue(MachineFunction &MF,
                                      MachineBasicBlock &MBB) const {}

// This function eliminates ADJCALLSTACKDOWN,
// ADJCALLSTACKUP pseudo instructions
MachineBasicBlock::iterator NVPTXFrameLowering::eliminateCallFramePseudoInstr(
    MachineFunction &MF, MachineBasicBlock &MBB,
    MachineBasicBlock::iterator I) const {
  // Simply discard ADJCALLSTACKDOWN,
  // ADJCALLSTACKUP instructions.
  return MBB.erase(I);
}

TargetFrameLowering::DwarfFrameBase
NVPTXFrameLowering::getDwarfFrameBase(const MachineFunction &MF) const {
  return {DwarfFrameBase::CFA, {0}};
}

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Editing: NVPTXFrameLowering.cpp

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