diff options
Diffstat (limited to 'lib/Target/ARM/ARMSubtarget.h')
| -rw-r--r-- | lib/Target/ARM/ARMSubtarget.h | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h index 8e6b6506022d..5b5ee6aeb865 100644 --- a/lib/Target/ARM/ARMSubtarget.h +++ b/lib/Target/ARM/ARMSubtarget.h @@ -15,9 +15,9 @@ #define ARMSUBTARGET_H #include "MCTargetDesc/ARMMCTargetDesc.h" -#include "llvm/Target/TargetSubtargetInfo.h" -#include "llvm/MC/MCInstrItineraries.h" #include "llvm/ADT/Triple.h" +#include "llvm/MC/MCInstrItineraries.h" +#include "llvm/Target/TargetSubtargetInfo.h" #include <string> #define GET_SUBTARGETINFO_HEADER @@ -26,11 +26,12 @@ namespace llvm { class GlobalValue; class StringRef; +class TargetOptions; class ARMSubtarget : public ARMGenSubtargetInfo { protected: enum ARMProcFamilyEnum { - Others, CortexA8, CortexA9, CortexA15, Swift + Others, CortexA5, CortexA8, CortexA9, CortexA15, CortexR5, Swift }; /// ARMProcFamily - ARM processor family: Cortex-A8, Cortex-A9, and others. @@ -131,6 +132,10 @@ protected: /// CPSR setting instruction. bool AvoidCPSRPartialUpdate; + /// AvoidMOVsShifterOperand - If true, codegen should avoid using flag setting + /// movs with shifter operand (i.e. asr, lsl, lsr). + bool AvoidMOVsShifterOperand; + /// HasRAS - Some processors perform return stack prediction. CodeGen should /// avoid issue "normal" call instructions to callees which do not return. bool HasRAS; @@ -152,6 +157,12 @@ protected: /// and such) instructions in Thumb2 code. bool Thumb2DSP; + /// 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; @@ -168,6 +179,9 @@ protected: /// 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 @@ -182,7 +196,7 @@ protected: /// 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. @@ -195,6 +209,12 @@ protected: /// subtarget options. Definition of function is auto generated by tblgen. void ParseSubtargetFeatures(StringRef CPU, StringRef FS); + /// \brief Reset the features for the ARM target. + virtual void resetSubtargetFeatures(const MachineFunction *MF); +private: + void initializeEnvironment(); + void resetSubtargetFeatures(StringRef CPU, StringRef FS); +public: void computeIssueWidth(); bool hasV4TOps() const { return HasV4TOps; } @@ -204,12 +224,14 @@ protected: bool hasV6T2Ops() const { return HasV6T2Ops; } bool hasV7Ops() const { return HasV7Ops; } + bool isCortexA5() const { return ARMProcFamily == CortexA5; } 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(); } + bool isCortexR5() const { return ARMProcFamily == CortexR5; } bool hasARMOps() const { return !NoARM; } @@ -231,9 +253,11 @@ protected: bool isFPOnlySP() const { return FPOnlySP; } 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; } @@ -243,7 +267,7 @@ protected: bool isTargetIOS() const { return TargetTriple.getOS() == Triple::IOS; } bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); } bool isTargetNaCl() const { - return TargetTriple.getOS() == Triple::NativeClient; + return TargetTriple.getOS() == Triple::NaCl; } bool isTargetELF() const { return !isTargetDarwin(); } |