namespace llvm {
class GlobalValue;
class StringRef;
+class TargetOptions;
class ARMSubtarget : public ARMGenSubtargetInfo {
protected:
/// precision.
bool FPOnlySP;
+ /// If true, the processor supports the Performance Monitor Extensions. These
+ /// include a generic cycle-counter as well as more fine-grained (often
+ /// implementation-specific) events.
+ bool HasPerfMon;
+
+ /// HasTrustZone - if true, processor supports TrustZone security extensions
+ bool HasTrustZone;
+
/// AllowsUnalignedMem - If true, the subtarget allows unaligned memory
/// accesses for some types. For details, see
/// ARMTargetLowering::allowsUnalignedMemoryAccesses().
/// NaCl TRAP instruction is generated instead of the regular TRAP.
bool UseNaClTrap;
+ /// Target machine allowed unsafe FP math (such as use of NEON fp)
+ bool UnsafeFPMath;
+
/// 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;
/// Selected instruction itineraries (one entry per itinerary class.)
InstrItineraryData InstrItins;
+ /// Options passed via command line that could influence the target
+ const TargetOptions &Options;
+
public:
enum {
isELF, isDarwin
/// of the specified triple.
///
ARMSubtarget(const std::string &TT, const std::string &CPU,
- const std::string &FS);
+ const std::string &FS, const TargetOptions &Options);
/// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size
/// that still makes it profitable to inline the call.
/// subtarget options. Definition of function is auto generated by tblgen.
void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
- /// \brief Reset the features for the X86 target.
+ /// \brief Reset the features for the ARM target.
virtual void resetSubtargetFeatures(const MachineFunction *MF);
private:
void initializeEnvironment();
bool hasVMLxForwarding() const { return HasVMLxForwarding; }
bool isFPBrccSlow() const { return SlowFPBrcc; }
bool isFPOnlySP() const { return FPOnlySP; }
+ bool hasPerfMon() const { return HasPerfMon; }
+ bool hasTrustZone() const { return HasTrustZone; }
bool prefers32BitThumb() const { return Pref32BitThumb; }
bool avoidCPSRPartialUpdate() const { return AvoidCPSRPartialUpdate; }
bool avoidMOVsShifterOperand() const { return AvoidMOVsShifterOperand; }
bool isTargetIOS() const { return TargetTriple.getOS() == Triple::IOS; }
bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); }
- bool isTargetNaCl() const {
- return TargetTriple.getOS() == Triple::NaCl;
- }
+ bool isTargetNaCl() const { return TargetTriple.getOS() == Triple::NaCl; }
+ bool isTargetLinux() const { return TargetTriple.getOS() == Triple::Linux; }
bool isTargetELF() const { return !isTargetDarwin(); }
bool isAPCS_ABI() const { return TargetABI == ARM_ABI_APCS; }