#include "ARMInstrInfo.h"
#include "ARMSelectionDAGInfo.h"
#include "ARMSubtarget.h"
+#include "MCTargetDesc/ARMMCTargetDesc.h"
#include "Thumb1FrameLowering.h"
#include "Thumb1InstrInfo.h"
#include "Thumb2InstrInfo.h"
-#include "MCTargetDesc/ARMMCTargetDesc.h"
#include "llvm/ADT/Triple.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/MC/MCInstrItineraries.h"
class GlobalValue;
class StringRef;
class TargetOptions;
+class ARMBaseTargetMachine;
class ARMSubtarget : public ARMGenSubtargetInfo {
protected:
enum ARMProcFamilyEnum {
Others, CortexA5, CortexA7, CortexA8, CortexA9, CortexA12, CortexA15,
- CortexR5, Swift, CortexA53, CortexA57, Krait
+ CortexA17, CortexR4, CortexR4F, CortexR5, CortexR7, CortexA53, CortexA57,
+ CortexA72, Krait, Swift
};
enum ARMProcClassEnum {
None, AClass, RClass, MClass
};
+ enum ARMArchEnum {
+ ARMv2, ARMv2a, ARMv3, ARMv3m, ARMv4, ARMv4t, ARMv5, ARMv5t, ARMv5te,
+ ARMv5tej, ARMv6, ARMv6k, ARMv6kz, ARMv6t2, ARMv6m, ARMv6sm, ARMv7a, ARMv7r,
+ ARMv7m, ARMv7em, ARMv8a, ARMv81a
+ };
/// ARMProcFamily - ARM processor family: Cortex-A8, Cortex-A9, and others.
ARMProcFamilyEnum ARMProcFamily;
/// ARMProcClass - ARM processor class: None, AClass, RClass or MClass.
ARMProcClassEnum ARMProcClass;
+ /// ARMArch - ARM architecture
+ ARMArchEnum ARMArch;
+
/// HasV4TOps, HasV5TOps, HasV5TEOps,
- /// HasV6Ops, HasV6MOps, HasV6T2Ops, HasV7Ops, HasV8Ops -
+ /// HasV6Ops, HasV6MOps, HasV6KOps, HasV6T2Ops, HasV7Ops, HasV8Ops -
/// Specify whether target support specific ARM ISA variants.
bool HasV4TOps;
bool HasV5TOps;
bool HasV5TEOps;
bool HasV6Ops;
bool HasV6MOps;
+ bool HasV6KOps;
bool HasV6T2Ops;
bool HasV7Ops;
bool HasV8Ops;
+ bool HasV8_1aOps;
/// HasVFPv2, HasVFPv3, HasVFPv4, HasFPARMv8, HasNEON - Specify what
/// floating point ISAs are supported.
/// InThumbMode - True if compiling for Thumb, false for ARM.
bool InThumbMode;
+ /// UseSoftFloat - True if we're using software floating point features.
+ bool UseSoftFloat;
+
/// HasThumb2 - True if Thumb2 instructions are supported.
bool HasThumb2;
/// NoARM - True if subtarget does not support ARM mode execution.
bool NoARM;
- /// IsR9Reserved - True if R9 is a not available as general purpose register.
- bool IsR9Reserved;
+ /// ReserveR9 - True if R9 is not available as a general purpose register.
+ bool ReserveR9;
- /// UseMovt - True if MOVT / MOVW pairs are used for materialization of 32-bit
- /// imms (including global addresses).
- bool UseMovt;
+ /// NoMovt - True if MOVT / MOVW pairs are not used for materialization of
+ /// 32-bit imms (including global addresses).
+ bool NoMovt;
/// SupportsTailCall - True if the OS supports tail call. The dynamic linker
/// must be able to synthesize call stubs for interworking between ARM and
/// particularly effective at zeroing a VFP register.
bool HasZeroCycleZeroing;
- /// AllowsUnalignedMem - If true, the subtarget allows unaligned memory
+ /// StrictAlign - If true, the subtarget disallows unaligned memory
/// accesses for some types. For details, see
/// ARMTargetLowering::allowsMisalignedMemoryAccesses().
- bool AllowsUnalignedMem;
+ bool StrictAlign;
/// RestrictIT - If true, the subtarget disallows generation of deprecated IT
/// blocks to conform to ARMv8 rule.
bool RestrictIT;
- /// Thumb2DSP - If true, the subtarget supports the v7 DSP (saturating arith
- /// and such) instructions in Thumb2 code.
- bool Thumb2DSP;
+ /// HasDSP - If true, the subtarget supports the DSP (saturating arith
+ /// and such) instructions.
+ bool HasDSP;
/// NaCl TRAP instruction is generated instead of the regular TRAP.
bool UseNaClTrap;
+ /// Generate calls via indirect call instructions.
+ bool GenLongCalls;
+
/// Target machine allowed unsafe FP math (such as use of NEON fp)
bool UnsafeFPMath;
+ /// UseSjLjEH - If true, the target uses SjLj exception handling (e.g. iOS).
+ bool UseSjLjEH;
+
/// stackAlignment - The minimum alignment known to hold of the stack frame on
/// entry to the function and which must be maintained by every function.
unsigned stackAlignment;
/// Options passed via command line that could influence the target
const TargetOptions &Options;
- public:
- enum {
- ARM_ABI_UNKNOWN,
- ARM_ABI_APCS,
- ARM_ABI_AAPCS // ARM EABI
- } TargetABI;
+ const ARMBaseTargetMachine &TM;
+public:
/// This constructor initializes the data members to match that
/// of the specified triple.
///
- ARMSubtarget(const std::string &TT, const std::string &CPU,
- const std::string &FS, const TargetMachine &TM, bool IsLittle);
+ ARMSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
+ const ARMBaseTargetMachine &TM, bool IsLittle);
/// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size
/// that still makes it profitable to inline the call.
/// so that we can use initializer lists for subtarget initialization.
ARMSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
- const DataLayout *getDataLayout() const override { return &DL; }
const ARMSelectionDAGInfo *getSelectionDAGInfo() const override {
return &TSInfo;
}
}
private:
- const DataLayout DL;
ARMSelectionDAGInfo TSInfo;
+ // Either Thumb1FrameLowering or ARMFrameLowering.
+ std::unique_ptr<ARMFrameLowering> FrameLowering;
// Either Thumb1InstrInfo or Thumb2InstrInfo.
std::unique_ptr<ARMBaseInstrInfo> InstrInfo;
ARMTargetLowering TLInfo;
- // Either Thumb1FrameLowering or ARMFrameLowering.
- std::unique_ptr<ARMFrameLowering> FrameLowering;
void initializeEnvironment();
void initSubtargetFeatures(StringRef CPU, StringRef FS);
+ ARMFrameLowering *initializeFrameLowering(StringRef CPU, StringRef FS);
+
public:
void computeIssueWidth();
bool hasV5TEOps() const { return HasV5TEOps; }
bool hasV6Ops() const { return HasV6Ops; }
bool hasV6MOps() const { return HasV6MOps; }
+ bool hasV6KOps() const { return HasV6KOps; }
bool hasV6T2Ops() const { return HasV6T2Ops; }
bool hasV7Ops() const { return HasV7Ops; }
bool hasV8Ops() const { return HasV8Ops; }
+ bool hasV8_1aOps() const { return HasV8_1aOps; }
bool isCortexA5() const { return ARMProcFamily == CortexA5; }
bool isCortexA7() const { return ARMProcFamily == CortexA7; }
bool hasCRC() const { return HasCRC; }
bool hasVirtualization() const { return HasVirtualization; }
bool useNEONForSinglePrecisionFP() const {
- return hasNEON() && UseNEONForSinglePrecisionFP; }
+ return hasNEON() && UseNEONForSinglePrecisionFP;
+ }
bool hasDivide() const { return HasHardwareDivide; }
bool hasDivideInARMMode() const { return HasHardwareDivideInARM; }
bool avoidMOVsShifterOperand() const { return AvoidMOVsShifterOperand; }
bool hasRAS() const { return HasRAS; }
bool hasMPExtension() const { return HasMPExtension; }
- bool hasThumb2DSP() const { return Thumb2DSP; }
+ bool hasDSP() const { return HasDSP; }
bool useNaClTrap() const { return UseNaClTrap; }
+ bool useSjLjEH() const { return UseSjLjEH; }
+ bool genLongCalls() const { return GenLongCalls; }
bool hasFP16() const { return HasFP16; }
bool hasD16() const { return HasD16; }
bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); }
bool isTargetIOS() const { return TargetTriple.isiOS(); }
+ bool isTargetWatchOS() const { return TargetTriple.isWatchOS(); }
bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
bool isTargetNaCl() const { return TargetTriple.isOSNaCl(); }
- bool isTargetNetBSD() const { return TargetTriple.getOS() == Triple::NetBSD; }
+ bool isTargetNetBSD() const { return TargetTriple.isOSNetBSD(); }
bool isTargetWindows() const { return TargetTriple.isOSWindows(); }
bool isTargetCOFF() const { return TargetTriple.isOSBinFormatCOFF(); }
TargetTriple.getEnvironment() == Triple::EABIHF) &&
!isTargetDarwin() && !isTargetWindows();
}
+ bool isTargetGNUAEABI() const {
+ return (TargetTriple.getEnvironment() == Triple::GNUEABI ||
+ TargetTriple.getEnvironment() == Triple::GNUEABIHF) &&
+ !isTargetDarwin() && !isTargetWindows();
+ }
// ARM Targets that support EHABI exception handling standard
// Darwin uses SjLj. Other targets might need more checks.
TargetTriple.getEnvironment() == Triple::GNUEABI ||
TargetTriple.getEnvironment() == Triple::EABIHF ||
TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
- TargetTriple.getEnvironment() == Triple::Android) &&
+ isTargetAndroid()) &&
!isTargetDarwin() && !isTargetWindows();
}
// FIXME: this is invalid for WindowsCE
return TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
TargetTriple.getEnvironment() == Triple::EABIHF ||
- isTargetWindows();
- }
- bool isTargetAndroid() const {
- return TargetTriple.getEnvironment() == Triple::Android;
+ isTargetWindows() || isAAPCS16_ABI();
}
+ bool isTargetAndroid() const { return TargetTriple.isAndroid(); }
- 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 isAPCS_ABI() const;
+ bool isAAPCS_ABI() const;
+ bool isAAPCS16_ABI() const;
+ bool useSoftFloat() const { return UseSoftFloat; }
bool isThumb() const { return InThumbMode; }
bool isThumb1Only() const { return InThumbMode && !HasThumb2; }
bool isThumb2() const { return InThumbMode && HasThumb2; }
bool isRClass() const { return ARMProcClass == RClass; }
bool isAClass() const { return ARMProcClass == AClass; }
- bool isV6M() const {
- return isThumb1Only() && isMClass();
+ bool isR9Reserved() const {
+ return isTargetMachO() ? (ReserveR9 || !HasV6Ops) : ReserveR9;
}
- bool isR9Reserved() const { return IsR9Reserved; }
+ bool useStride4VFPs(const MachineFunction &MF) const;
bool useMovt(const MachineFunction &MF) const;
bool supportsTailCall() const { return SupportsTailCall; }
- bool allowsUnalignedMem() const { return AllowsUnalignedMem; }
+ bool allowsUnalignedMem() const { return !StrictAlign; }
bool restrictIT() const { return RestrictIT; }
/// compiler runtime or math libraries.
bool hasSinCos() const;
+ /// Returns true if machine scheduler should be enabled.
+ bool enableMachineScheduler() const override;
+
/// True for some subtargets at > -O0.
- bool enablePostMachineScheduler() const override;
+ bool enablePostRAScheduler() const override;
// enableAtomicExpand- True if we need to expand our atomics.
bool enableAtomicExpand() const override;
/// symbol.
bool GVIsIndirectSymbol(const GlobalValue *GV, Reloc::Model RelocM) const;
+ /// True if fast-isel is used.
+ bool useFastISel() const;
};
} // End llvm namespace
projects / oota-llvm.git / blobdiff