#ifndef ARMSUBTARGET_H
#define ARMSUBTARGET_H
#include "MCTargetDesc/ARMMCTargetDesc.h"
#include "llvm/ADT/Triple.h"
#include "llvm/MC/MCInstrItineraries.h"
#include "llvm/Target/TargetSubtargetInfo.h"
#include <string>
#define GET_SUBTARGETINFO_HEADER
#include "ARMGenSubtargetInfo.inc"
namespace llvm {
class GlobalValue;
class StringRef;
class TargetOptions;
class ARMSubtarget : public ARMGenSubtargetInfo {
protected:
enum ARMProcFamilyEnum {
Others, CortexA5, CortexA7, CortexA8, CortexA9, CortexA12, CortexA15,
CortexR5, Swift, CortexA53, CortexA57, Krait
};
enum ARMProcClassEnum {
None, AClass, RClass, MClass
};
ARMProcFamilyEnum ARMProcFamily;
ARMProcClassEnum ARMProcClass;
bool HasV4TOps;
bool HasV5TOps;
bool HasV5TEOps;
bool HasV6Ops;
bool HasV6MOps;
bool HasV6T2Ops;
bool HasV7Ops;
bool HasV8Ops;
bool HasVFPv2;
bool HasVFPv3;
bool HasVFPv4;
bool HasFPARMv8;
bool HasNEON;
bool MinSize;
bool UseNEONForSinglePrecisionFP;
bool UseMulOps;
bool SlowFPVMLx;
bool HasVMLxForwarding;
bool SlowFPBrcc;
bool InThumbMode;
bool HasThumb2;
bool HasVFPScalarFP;
bool NoARM;
bool PostRAScheduler;
bool IsR9Reserved;
bool UseMovt;
bool SupportsTailCall;
bool HasFP16;
bool HasD16;
bool HasHardwareDivide;
bool HasHardwareDivideInARM;
bool HasT2ExtractPack;
bool HasDataBarrier;
bool Pref32BitThumb;
bool AvoidCPSRPartialUpdate;
bool AvoidMOVsShifterOperand;
bool HasRAS;
bool HasMPExtension;
bool HasVirtualization;
bool FPOnlySP;
bool AvoidRegSoReg;
bool HasPerfMon;
bool HasTrustZone;
bool HasCrypto;
bool HasCRC;
bool HasZeroCycleZeroing;
bool AllowsUnalignedMem;
bool RestrictIT;
bool Thumb2DSP;
bool UseNaClTrap;
bool UnsafeFPMath;
unsigned stackAlignment;
std::string CPUString;
Triple TargetTriple;
const MCSchedModel *SchedModel;
InstrItineraryData InstrItins;
const TargetOptions &Options;
public:
enum {
ARM_ABI_UNKNOWN,
ARM_ABI_APCS,
ARM_ABI_AAPCS } TargetABI;
ARMSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS, const TargetOptions &Options);
unsigned getMaxInlineSizeThreshold() const {
return isThumb1Only() ? 0 : 64;
}
void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
virtual void resetSubtargetFeatures(const MachineFunction *MF);
private:
void initializeEnvironment();
void resetSubtargetFeatures(StringRef CPU, StringRef FS);
public:
void computeIssueWidth();
bool hasV4TOps() const { return HasV4TOps; }
bool hasV5TOps() const { return HasV5TOps; }
bool hasV5TEOps() const { return HasV5TEOps; }
bool hasV6Ops() const { return HasV6Ops; }
bool hasV6MOps() const { return HasV6MOps; }
bool hasV6T2Ops() const { return HasV6T2Ops; }
bool hasV7Ops() const { return HasV7Ops; }
bool hasV8Ops() const { return HasV8Ops; }
bool isCortexA5() const { return ARMProcFamily == CortexA5; }
bool isCortexA7() const { return CPUString == "cortex-a7"; }
bool isCortexA8() const { return ARMProcFamily == CortexA8; }
bool isCortexA9() const { return ARMProcFamily == CortexA9; }
bool isCortexA15() const { return ARMProcFamily == CortexA15; }
bool isSwift() const { return ARMProcFamily == Swift; }
bool isCortexM3() const { return CPUString == "cortex-m3"; }
bool isLikeA9() const { return isCortexA9() || isCortexA15() || isKrait(); }
bool isCortexR5() const { return ARMProcFamily == CortexR5; }
bool isKrait() const { return ARMProcFamily == Krait; }
bool hasARMOps() const { return !NoARM; }
bool hasVFP2() const { return HasVFPv2; }
bool hasVFP3() const { return HasVFPv3; }
bool hasVFP4() const { return HasVFPv4; }
bool hasFPARMv8() const { return HasFPARMv8; }
bool hasNEON() const { return HasNEON; }
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 hasDivide() const { return HasHardwareDivide; }
bool hasDivideInARMMode() const { return HasHardwareDivideInARM; }
bool hasT2ExtractPack() const { return HasT2ExtractPack; }
bool hasDataBarrier() const { return HasDataBarrier; }
bool hasAnyDataBarrier() const {
return HasDataBarrier || (hasV6Ops() && !isThumb());
}
bool useMulOps() const { return UseMulOps; }
bool useFPVMLx() const { return !SlowFPVMLx; }
bool hasVMLxForwarding() const { return HasVMLxForwarding; }
bool isFPBrccSlow() const { return SlowFPBrcc; }
bool isFPOnlySP() const { return FPOnlySP; }
bool avoidRegSoReg() const { return AvoidRegSoReg; }
bool hasPerfMon() const { return HasPerfMon; }
bool hasTrustZone() const { return HasTrustZone; }
bool hasZeroCycleZeroing() const { return HasZeroCycleZeroing; }
bool prefers32BitThumb() const { return Pref32BitThumb; }
bool avoidCPSRPartialUpdate() const { return AvoidCPSRPartialUpdate; }
bool avoidMOVsShifterOperand() const { return AvoidMOVsShifterOperand; }
bool hasRAS() const { return HasRAS; }
bool hasMPExtension() const { return HasMPExtension; }
bool hasThumb2DSP() const { return Thumb2DSP; }
bool useNaClTrap() const { return UseNaClTrap; }
bool hasFP16() const { return HasFP16; }
bool hasD16() const { return HasD16; }
const Triple &getTargetTriple() const { return TargetTriple; }
bool isTargetIOS() const { return TargetTriple.isiOS(); }
bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); }
bool isTargetNaCl() const { return TargetTriple.isOSNaCl(); }
bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
bool isTargetMachO() const { return TargetTriple.isOSBinFormatMachO(); }
bool isTargetAEABI() const {
return (TargetTriple.getEnvironment() == Triple::EABI ||
TargetTriple.getEnvironment() == Triple::EABIHF) &&
!isTargetDarwin();
}
bool isTargetHardFloat() const {
return TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
TargetTriple.getEnvironment() == Triple::EABIHF;
}
bool isAPCS_ABI() const {
assert(TargetABI != ARM_ABI_UNKNOWN);
return TargetABI == ARM_ABI_APCS;
}
bool isAAPCS_ABI() const {
assert(TargetABI != ARM_ABI_UNKNOWN);
return TargetABI == ARM_ABI_AAPCS;
}
bool isThumb() const { return InThumbMode; }
bool isThumb1Only() const { return InThumbMode && !HasThumb2; }
bool isThumb2() const { return InThumbMode && HasThumb2; }
bool hasThumb2() const { return HasThumb2; }
bool isMClass() const { return ARMProcClass == MClass; }
bool isRClass() const { return ARMProcClass == RClass; }
bool isAClass() const { return ARMProcClass == AClass; }
bool isR9Reserved() const { return IsR9Reserved; }
bool useMovt() const { return UseMovt && !isMinSize(); }
bool supportsTailCall() const { return SupportsTailCall; }
bool allowsUnalignedMem() const { return AllowsUnalignedMem; }
bool restrictIT() const { return RestrictIT; }
const std::string & getCPUString() const { return CPUString; }
unsigned getMispredictionPenalty() const;
bool hasSinCos() const;
bool enablePostRAScheduler(CodeGenOpt::Level OptLevel,
TargetSubtargetInfo::AntiDepBreakMode& Mode,
RegClassVector& CriticalPathRCs) const;
const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
unsigned getStackAlignment() const { return stackAlignment; }
bool GVIsIndirectSymbol(const GlobalValue *GV, Reloc::Model RelocM) const;
};
}
#endif // ARMSUBTARGET_H