In preparation for replacing the whole subtarget on the target machine,

[oota-llvm.git] / lib / Target / Mips / MipsSubtarget.cpp

diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp
index 902735d7810f88a4b061be37123f6d2bf2ceff24..f801dcd9e945b569c53b43294330f1a8e7473405 100644 (file)
--- a/lib/Target/Mips/MipsSubtarget.cpp
+++ b/lib/Target/Mips/MipsSubtarget.cpp
@@ -104,7 +104,7 @@ static std::string computeDataLayout(const MipsSubtarget &ST) {
 
 MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
                              const std::string &FS, bool little,
-                             Reloc::Model _RM, MipsTargetMachine *_TM)
+                             MipsTargetMachine *_TM)
     : MipsGenSubtargetInfo(TT, CPU, FS), MipsArchVersion(Mips32),
       MipsABI(UnknownABI), IsLittle(little), IsSingleFloat(false),
       IsFPXX(false), IsFP64bit(false), UseOddSPReg(true), IsNaN2008bit(false),
@@ -113,12 +113,11 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
       HasMips4_32r2(false), HasMips5_32r2(false), InMips16Mode(false),
       InMips16HardFloat(Mips16HardFloat), InMicroMipsMode(false), HasDSP(false),
       HasDSPR2(false), AllowMixed16_32(Mixed16_32 | Mips_Os16), Os16(Mips_Os16),
-      HasMSA(false), RM(_RM), OverrideMode(NoOverride), TM(_TM),
-      TargetTriple(TT),
+      HasMSA(false), OverrideMode(NoOverride), TM(_TM), TargetTriple(TT),
       DL(computeDataLayout(initializeSubtargetDependencies(CPU, FS, TM))),
-      TSInfo(DL), JITInfo(), InstrInfo(MipsInstrInfo::create(*TM)),
+      TSInfo(DL), JITInfo(), InstrInfo(MipsInstrInfo::create(*this)),
       FrameLowering(MipsFrameLowering::create(*TM, *this)),
-      TLInfo(MipsTargetLowering::create(*TM)) {
+      TLInfo(MipsTargetLowering::create(*TM, *this)) {
 
   PreviousInMips16Mode = InMips16Mode;
 
@@ -174,18 +173,20 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
   // Set UseSmallSection.
   // TODO: Investigate the IsLinux check. I suspect it's really checking for
   //       bare-metal.
-  UseSmallSection = !IsLinux && (RM == Reloc::Static);
+  UseSmallSection = !IsLinux && (TM->getRelocationModel() == Reloc::Static);
 }
 
-bool
-MipsSubtarget::enablePostRAScheduler(CodeGenOpt::Level OptLevel,
-                                    TargetSubtargetInfo::AntiDepBreakMode &Mode,
-                                     RegClassVector &CriticalPathRCs) const {
-  Mode = TargetSubtargetInfo::ANTIDEP_NONE;
+/// This overrides the PostRAScheduler bit in the SchedModel for any CPU.
+bool MipsSubtarget::enablePostMachineScheduler() const { return true; }
+
+void MipsSubtarget::getCriticalPathRCs(RegClassVector &CriticalPathRCs) const {
   CriticalPathRCs.clear();
-  CriticalPathRCs.push_back(isGP64bit() ? &Mips::GPR64RegClass
-                                        : &Mips::GPR32RegClass);
-  return OptLevel >= CodeGenOpt::Aggressive;
+  CriticalPathRCs.push_back(isGP64bit() ?
+                            &Mips::GPR64RegClass : &Mips::GPR32RegClass);
+}
+
+CodeGenOpt::Level MipsSubtarget::getOptLevelToEnablePostRAScheduler() const {
+  return CodeGenOpt::Aggressive;
 }
 
 MipsSubtarget &
@@ -198,15 +199,8 @@ MipsSubtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS,
   // Initialize scheduling itinerary for the specified CPU.
   InstrItins = getInstrItineraryForCPU(CPUName);
 
-  if (InMips16Mode && !TM->Options.UseSoftFloat) {
-    // Hard float for mips16 means essentially to compile as soft float
-    // but to use a runtime library for soft float that is written with
-    // native mips32 floating point instructions (those runtime routines
-    // run in mips32 hard float mode).
-    TM->Options.UseSoftFloat = true;
-    TM->Options.FloatABIType = FloatABI::Soft;
+  if (InMips16Mode && !TM->Options.UseSoftFloat)
     InMips16HardFloat = true;
-  }
 
   return *this;
 }
@@ -260,9 +254,9 @@ void MipsSubtarget::setHelperClassesMips16() {
   FrameLoweringSE.swap(FrameLowering);
   TLInfoSE.swap(TLInfo);
   if (!InstrInfo16) {
-    InstrInfo.reset(MipsInstrInfo::create(*TM));
+    InstrInfo.reset(MipsInstrInfo::create(*this));
     FrameLowering.reset(MipsFrameLowering::create(*TM, *this));
-    TLInfo.reset(MipsTargetLowering::create(*TM));
+    TLInfo.reset(MipsTargetLowering::create(*TM, *this));
   } else {
     InstrInfo16.swap(InstrInfo);
     FrameLowering16.swap(FrameLowering);
@@ -278,9 +272,9 @@ void MipsSubtarget::setHelperClassesMipsSE() {
   FrameLowering16.swap(FrameLowering);
   TLInfo16.swap(TLInfo);
   if (!InstrInfoSE) {
-    InstrInfo.reset(MipsInstrInfo::create(*TM));
+    InstrInfo.reset(MipsInstrInfo::create(*this));
     FrameLowering.reset(MipsFrameLowering::create(*TM, *this));
-    TLInfo.reset(MipsTargetLowering::create(*TM));
+    TLInfo.reset(MipsTargetLowering::create(*TM, *this));
   } else {
     InstrInfoSE.swap(InstrInfo);
     FrameLoweringSE.swap(FrameLowering);
@@ -291,7 +285,7 @@ void MipsSubtarget::setHelperClassesMipsSE() {
   assert(FrameLowering && "null frame lowering SE");
 }
 
-bool MipsSubtarget::mipsSEUsesSoftFloat() const {
+bool MipsSubtarget::abiUsesSoftFloat() const {
   return TM->Options.UseSoftFloat && !InMips16HardFloat;
 }
 
@@ -299,3 +293,7 @@ bool MipsSubtarget::useConstantIslands() {
   DEBUG(dbgs() << "use constant islands " << Mips16ConstantIslands << "\n");
   return Mips16ConstantIslands;
 }
+
+Reloc::Model MipsSubtarget::getRelocationModel() const {
+  return TM->getRelocationModel();
+}