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📁 ..
📁 AsmParser
📄 DelaySlotFiller.cpp(14.86 KB)
📁 Disassembler
📄 LeonFeatures.td(2.12 KB)
📄 LeonPasses.cpp(5.78 KB)
📄 LeonPasses.h(2.59 KB)
📁 MCTargetDesc
📄 Sparc.h(5.28 KB)
📄 Sparc.td(7.33 KB)
📄 SparcAsmPrinter.cpp(16.24 KB)
📄 SparcCallingConv.td(5.66 KB)
📄 SparcFrameLowering.cpp(13.77 KB)
📄 SparcFrameLowering.h(2.4 KB)
📄 SparcISelDAGToDAG.cpp(14.22 KB)
📄 SparcISelLowering.cpp(133.64 KB)
📄 SparcISelLowering.h(9.48 KB)
📄 SparcInstr64Bit.td(21.58 KB)
📄 SparcInstrAliases.td(21.18 KB)
📄 SparcInstrFormats.td(10.36 KB)
📄 SparcInstrInfo.cpp(18.87 KB)
📄 SparcInstrInfo.h(4.13 KB)
📄 SparcInstrInfo.td(68.33 KB)
📄 SparcInstrVIS.td(11.1 KB)
📄 SparcMCInstLower.cpp(3.31 KB)
📄 SparcMachineFunctionInfo.cpp(476 B)
📄 SparcMachineFunctionInfo.h(1.92 KB)
📄 SparcRegisterInfo.cpp(8.22 KB)
📄 SparcRegisterInfo.h(1.73 KB)
📄 SparcRegisterInfo.td(13.94 KB)
📄 SparcSchedule.td(6.43 KB)
📄 SparcSubtarget.cpp(3.17 KB)
📄 SparcSubtarget.h(4.08 KB)
📄 SparcTargetMachine.cpp(7.77 KB)
📄 SparcTargetMachine.h(2.78 KB)
📄 SparcTargetObjectFile.cpp(1.85 KB)
📄 SparcTargetObjectFile.h(1.15 KB)
📁 TargetInfo

Editing: SparcSubtarget.cpp

//===-- SparcSubtarget.cpp - SPARC Subtarget Information ------------------===//
//
// 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 implements the SPARC specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//

#include "SparcSubtarget.h"
#include "Sparc.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/TargetRegistry.h"

using namespace llvm;

#define DEBUG_TYPE "sparc-subtarget"

#define GET_SUBTARGETINFO_TARGET_DESC
#define GET_SUBTARGETINFO_CTOR
#include "SparcGenSubtargetInfo.inc"

void SparcSubtarget::anchor() { }

SparcSubtarget &SparcSubtarget::initializeSubtargetDependencies(StringRef CPU,
                                                                StringRef FS) {
  UseSoftMulDiv = false;
  IsV9 = false;
  IsLeon = false;
  V8DeprecatedInsts = false;
  IsVIS = false;
  IsVIS2 = false;
  IsVIS3 = false;
  HasHardQuad = false;
  UsePopc = false;
  UseSoftFloat = false;
  HasNoFSMULD = false;
  HasNoFMULS = false;

// Leon features
  HasLeonCasa = false;
  HasUmacSmac = false;
  HasPWRPSR = false;
  InsertNOPLoad = false;
  FixAllFDIVSQRT = false;
  DetectRoundChange = false;
  HasLeonCycleCounter = false;

// Determine default and user specified characteristics
  std::string CPUName = std::string(CPU);
  if (CPUName.empty())
    CPUName = (Is64Bit) ? "v9" : "v8";

// Parse features string.
  ParseSubtargetFeatures(CPUName, FS);

// Popc is a v9-only instruction.
  if (!IsV9)
    UsePopc = false;

return *this;
}

SparcSubtarget::SparcSubtarget(const Triple &TT, const std::string &CPU,
                               const std::string &FS, const TargetMachine &TM,
                               bool is64Bit)
    : SparcGenSubtargetInfo(TT, CPU, FS), TargetTriple(TT), Is64Bit(is64Bit),
      InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this),
      FrameLowering(*this) {}

int SparcSubtarget::getAdjustedFrameSize(int frameSize) const {

if (is64Bit()) {
    // All 64-bit stack frames must be 16-byte aligned, and must reserve space
    // for spilling the 16 window registers at %sp+BIAS..%sp+BIAS+128.
    frameSize += 128;
    // Frames with calls must also reserve space for 6 outgoing arguments
    // whether they are used or not. LowerCall_64 takes care of that.
    frameSize = alignTo(frameSize, 16);
  } else {
    // Emit the correct save instruction based on the number of bytes in
    // the frame. Minimum stack frame size according to V8 ABI is:
    //   16 words for register window spill
    //    1 word for address of returned aggregate-value
    // +  6 words for passing parameters on the stack
    // ----------
    //   23 words * 4 bytes per word = 92 bytes
    frameSize += 92;

// Round up to next doubleword boundary -- a double-word boundary
    // is required by the ABI.
    frameSize = alignTo(frameSize, 8);
  }
  return frameSize;
}

bool SparcSubtarget::enableMachineScheduler() const {
  return true;
}

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Editing: SparcSubtarget.cpp

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