llvm/lib/Target/CSKY/CSKYSubtarget.cpp

   1 //===-- CSKYSubtarget.h - Define Subtarget for the CSKY----------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file declares the CSKY specific subclass of TargetSubtargetInfo.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "CSKYSubtarget.h"
  14 #include "llvm/CodeGen/MachineFrameInfo.h"
  15
  16 using namespace llvm;
  17
  18 #define DEBUG_TYPE "csky-subtarget"
  19 #define GET_SUBTARGETINFO_TARGET_DESC
  20 #define GET_SUBTARGETINFO_CTOR
  21 #include "CSKYGenSubtargetInfo.inc"
  22
  23 void CSKYSubtarget::anchor() {}
  24
  25 CSKYSubtarget &CSKYSubtarget::initializeSubtargetDependencies(
  26     const Triple &TT, StringRef CPUName, StringRef TuneCPUName, StringRef FS) {
  27
  28   if (CPUName.empty())
  29     CPUName = "generic";
  30   if (TuneCPUName.empty())
  31     TuneCPUName = CPUName;
  32
  33   UseHardFloat = false;
  34   UseHardFloatABI = false;
  35   HasFPUv2SingleFloat = false;
  36   HasFPUv2DoubleFloat = false;
  37   HasFPUv3HalfWord = false;
  38   HasFPUv3HalfFloat = false;
  39   HasFPUv3SingleFloat = false;
  40   HasFPUv3DoubleFloat = false;
  41   HasFdivdu = false;
  42   HasFLOATE1 = false;
  43   HasFLOAT1E2 = false;
  44   HasFLOAT1E3 = false;
  45   HasFLOAT3E4 = false;
  46   HasFLOAT7E60 = false;
  47   HasExtendLrw = false;
  48   HasBTST16 = false;
  49   HasTrust = false;
  50   HasJAVA = false;
  51   HasCache = false;
  52   HasNVIC = false;
  53   HasDSP = false;
  54   HasDSP1E2 = false;
  55   HasDSPE60 = false;
  56   HasDSPV2 = false;
  57   HasDSP_Silan = false;
  58   HasDoloop = false;
  59   HasHardwareDivide = false;
  60   HasHighRegisters = false;
  61   HasVDSPV2 = false;
  62   HasVDSP2E3 = false;
  63   HasVDSP2E60F = false;
  64   ReadTPHard = false;
  65   HasVDSPV1_128 = false;
  66   UseCCRT = false;
  67   DumpConstPool = false;
  68   EnableInterruptAttribute = false;
  69   HasPushPop = false;
  70   HasSTM = false;
  71   SmartMode = false;
  72   EnableStackSize = false;
  73
  74   HasE1 = false;
  75   HasE2 = false;
  76   Has2E3 = false;
  77   HasMP = false;
  78   Has3E3r1 = false;
  79   Has3r1E3r2 = false;
  80   Has3r2E3r3 = false;
  81   Has3E7 = false;
  82   HasMP1E2 = false;
  83   Has7E10 = false;
  84   Has10E60 = false;
  85
  86   ParseSubtargetFeatures(CPUName, TuneCPUName, FS);
  87   return *this;
  88 }
  89
  90 CSKYSubtarget::CSKYSubtarget(const Triple &TT, StringRef CPU, StringRef TuneCPU,
  91                              StringRef FS, const TargetMachine &TM)
  92     : CSKYGenSubtargetInfo(TT, CPU, TuneCPU, FS),
  93       FrameLowering(initializeSubtargetDependencies(TT, CPU, TuneCPU, FS)),
  94       InstrInfo(*this), RegInfo(), TLInfo(TM, *this) {}
  95
  96 bool CSKYSubtarget::useHardFloatABI() const {
  97   auto FloatABI = getTargetLowering()->getTargetMachine().Options.FloatABIType;
  98
  99   if (FloatABI == FloatABI::Default)
 100     return UseHardFloatABI;
 101   else
 102     return FloatABI == FloatABI::Hard;
 103 }