- const std::string &FS)
- : ARMGenSubtargetInfo(TT, CPU, FS)
- , ARMProcFamily(Others)
- , HasV4TOps(false)
- , HasV5TOps(false)
- , HasV5TEOps(false)
- , HasV6Ops(false)
- , HasV6T2Ops(false)
- , HasV7Ops(false)
- , HasVFPv2(false)
- , HasVFPv3(false)
- , HasVFPv4(false)
- , HasNEON(false)
- , UseNEONForSinglePrecisionFP(false)
- , UseMulOps(UseFusedMulOps)
- , SlowFPVMLx(false)
- , HasVMLxForwarding(false)
- , SlowFPBrcc(false)
- , InThumbMode(false)
- , HasThumb2(false)
- , IsMClass(false)
- , NoARM(false)
- , PostRAScheduler(false)
- , IsR9Reserved(ReserveR9)
- , UseMovt(false)
- , SupportsTailCall(false)
- , HasFP16(false)
- , HasD16(false)
- , HasHardwareDivide(false)
- , HasHardwareDivideInARM(false)
- , HasT2ExtractPack(false)
- , HasDataBarrier(false)
- , Pref32BitThumb(false)
- , AvoidCPSRPartialUpdate(false)
- , AvoidMOVsShifterOperand(false)
- , HasRAS(false)
- , HasMPExtension(false)
- , FPOnlySP(false)
- , AllowsUnalignedMem(false)
- , Thumb2DSP(false)
- , stackAlignment(4)
- , CPUString(CPU)
- , TargetTriple(TT)
- , TargetABI(ARM_ABI_APCS) {
- // Determine default and user specified characteristics
- if (CPUString.empty())
- CPUString = "generic";
+ const std::string &FS,
+ const ARMBaseTargetMachine &TM, bool IsLittle)
+ : ARMGenSubtargetInfo(TT, CPU, FS), ARMProcFamily(Others),
+ ARMProcClass(None), stackAlignment(4), CPUString(CPU), IsLittle(IsLittle),
+ TargetTriple(TT), Options(TM.Options), TM(TM),
+ TSInfo(*TM.getDataLayout()),
+ FrameLowering(initializeFrameLowering(CPU, FS)),
+ // At this point initializeSubtargetDependencies has been called so
+ // we can query directly.
+ InstrInfo(isThumb1Only()
+ ? (ARMBaseInstrInfo *)new Thumb1InstrInfo(*this)
+ : !isThumb()
+ ? (ARMBaseInstrInfo *)new ARMInstrInfo(*this)
+ : (ARMBaseInstrInfo *)new Thumb2InstrInfo(*this)),
+ TLInfo(TM, *this) {}
+
+void ARMSubtarget::initializeEnvironment() {
+ HasV4TOps = false;
+ HasV5TOps = false;
+ HasV5TEOps = false;
+ HasV6Ops = false;
+ HasV6MOps = false;
+ HasV6KOps = false;
+ HasV6T2Ops = false;
+ HasV7Ops = false;
+ HasV8Ops = false;
+ HasV8_1aOps = false;
+ HasVFPv2 = false;
+ HasVFPv3 = false;
+ HasVFPv4 = false;
+ HasFPARMv8 = false;
+ HasNEON = false;
+ UseNEONForSinglePrecisionFP = false;
+ UseMulOps = UseFusedMulOps;
+ SlowFPVMLx = false;
+ HasVMLxForwarding = false;
+ SlowFPBrcc = false;
+ InThumbMode = false;
+ UseSoftFloat = false;
+ HasThumb2 = false;
+ NoARM = false;
+ IsR9Reserved = ReserveR9;
+ UseMovt = false;
+ SupportsTailCall = false;
+ HasFP16 = false;
+ HasD16 = false;
+ HasHardwareDivide = false;
+ HasHardwareDivideInARM = false;
+ HasT2ExtractPack = false;
+ HasDataBarrier = false;
+ Pref32BitThumb = false;
+ AvoidCPSRPartialUpdate = false;
+ AvoidMOVsShifterOperand = false;
+ HasRAS = false;
+ HasMPExtension = false;
+ HasVirtualization = false;
+ FPOnlySP = false;
+ HasPerfMon = false;
+ HasTrustZone = false;
+ HasCrypto = false;
+ HasCRC = false;
+ HasZeroCycleZeroing = false;
+ AllowsUnalignedMem = false;
+ Thumb2DSP = false;
+ UseNaClTrap = false;
+ UnsafeFPMath = false;
+}
+
+void ARMSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
+ if (CPUString.empty()) {
+ if (isTargetDarwin() && TargetTriple.getArchName().endswith("v7s"))
+ // Default to the Swift CPU when targeting armv7s/thumbv7s.
+ CPUString = "swift";
+ else
+ CPUString = "generic";
+ }