#ifndef ARMSUBTARGET_H
#define ARMSUBTARGET_H
+
+#include "ARMFrameLowering.h"
+#include "ARMISelLowering.h"
+#include "ARMInstrInfo.h"
+#include "ARMJITInfo.h"
+#include "ARMSelectionDAGInfo.h"
+#include "ARMSubtarget.h"
+#include "Thumb1FrameLowering.h"
+#include "Thumb1InstrInfo.h"
+#include "Thumb2InstrInfo.h"
+#include "ARMJITInfo.h"
#include "MCTargetDesc/ARMMCTargetDesc.h"
#include "llvm/ADT/Triple.h"
#include "llvm/IR/DataLayout.h"
bool HasFPARMv8;
bool HasNEON;
- /// MinSize - True if the function being compiled has the "minsize" attribute
- /// and should be optimised for size at the expense of speed.
- bool MinSize;
-
/// UseNEONForSinglePrecisionFP - if the NEONFP attribute has been
/// specified. Use the method useNEONForSinglePrecisionFP() to
/// determine if NEON should actually be used.
/// of the specified triple.
///
ARMSubtarget(const std::string &TT, const std::string &CPU,
- const std::string &FS, bool IsLittle,
+ const std::string &FS, TargetMachine &TM, bool IsLittle,
const TargetOptions &Options);
/// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size
ARMSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
const DataLayout *getDataLayout() const { return &DL; }
+ const ARMSelectionDAGInfo *getSelectionDAGInfo() const { return &TSInfo; }
+ ARMJITInfo *getJITInfo() { return &JITInfo; }
+ const ARMBaseInstrInfo *getInstrInfo() const { return InstrInfo.get(); }
+ const ARMTargetLowering *getTargetLowering() const { return &TLInfo; }
+ const ARMFrameLowering *getFrameLowering() const { return FrameLowering.get(); }
+ const ARMBaseRegisterInfo *getRegisterInfo() const {
+ return &InstrInfo->getRegisterInfo();
+ }
private:
const DataLayout DL;
+ ARMSelectionDAGInfo TSInfo;
+ ARMJITInfo JITInfo;
+ // Either Thumb1InstrInfo or Thumb2InstrInfo.
+ std::unique_ptr<ARMBaseInstrInfo> InstrInfo;
+ ARMTargetLowering TLInfo;
+ // Either Thumb1FrameLowering or ARMFrameLowering.
+ std::unique_ptr<ARMFrameLowering> FrameLowering;
void initializeEnvironment();
void resetSubtargetFeatures(StringRef CPU, StringRef FS);
bool hasCrypto() const { return HasCrypto; }
bool hasCRC() const { return HasCRC; }
bool hasVirtualization() const { return HasVirtualization; }
- bool isMinSize() const { return MinSize; }
bool useNEONForSinglePrecisionFP() const {
return hasNEON() && UseNEONForSinglePrecisionFP; }
bool isR9Reserved() const { return IsR9Reserved; }
- bool useMovt() const {
- // NOTE Windows on ARM needs to use mov.w/mov.t pairs to materialise 32-bit
- // immediates as it is inherently position independent, and may be out of
- // range otherwise.
- return UseMovt && (isTargetWindows() || !isMinSize());
- }
+ bool useMovt(const MachineFunction &MF) const;
+
bool supportsTailCall() const { return SupportsTailCall; }
bool allowsUnalignedMem() const { return AllowsUnalignedMem; }
TargetSubtargetInfo::AntiDepBreakMode& Mode,
RegClassVector& CriticalPathRCs) const override;
+ // enableAtomicExpandLoadLinked - True if we need to expand our atomics.
+ bool enableAtomicExpandLoadLinked() const override;
+
/// getInstrItins - Return the instruction itineraies based on subtarget
/// selection.
const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
/// GVIsIndirectSymbol - true if the GV will be accessed via an indirect
/// symbol.
bool GVIsIndirectSymbol(const GlobalValue *GV, Reloc::Model RelocM) const;
+
+ /// \brief SrcRC and DstRC will be morphed into NewRC if this returns true
+ bool shouldCoalesce(MachineInstr *MI,
+ const TargetRegisterClass *SrcRC,
+ unsigned SubReg,
+ const TargetRegisterClass *DstRC,
+ unsigned DstSubReg,
+ const TargetRegisterClass *NewRC) const override;
};
} // End llvm namespace