X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FPowerPC%2FPPCSubtarget.h;h=2d8399e78110c42f550931139844705077f3143e;hb=212ec3a739dcc93206a81d582e9eca830589a107;hp=bb29d449507a31af0156725fa8c8b73ce43d5142;hpb=2f6fea90a54787d873cfc25f33668cb4cc7d6e1e;p=oota-llvm.git diff --git a/lib/Target/PowerPC/PPCSubtarget.h b/lib/Target/PowerPC/PPCSubtarget.h index bb29d449507..2d8399e7811 100644 --- a/lib/Target/PowerPC/PPCSubtarget.h +++ b/lib/Target/PowerPC/PPCSubtarget.h @@ -1,4 +1,4 @@ -//=====-- PPCSubtarget.h - Define Subtarget for the PPC -------*- C++ -*--====// +//===-- PPCSubtarget.h - Define Subtarget for the PPC ----------*- C++ -*--===// // // The LLVM Compiler Infrastructure // @@ -7,87 +7,126 @@ // //===----------------------------------------------------------------------===// // -// This file declares the PowerPC specific subclass of TargetSubtarget. +// This file declares the PowerPC specific subclass of TargetSubtargetInfo. // //===----------------------------------------------------------------------===// #ifndef POWERPCSUBTARGET_H #define POWERPCSUBTARGET_H -#include "llvm/Target/TargetInstrItineraries.h" -#include "llvm/Target/TargetSubtarget.h" - +#include "PPCFrameLowering.h" +#include "PPCInstrInfo.h" +#include "PPCISelLowering.h" +#include "PPCJITInfo.h" +#include "PPCSelectionDAGInfo.h" +#include "llvm/ADT/Triple.h" +#include "llvm/IR/DataLayout.h" +#include "llvm/MC/MCInstrItineraries.h" +#include "llvm/Target/TargetSubtargetInfo.h" #include +#define GET_SUBTARGETINFO_HEADER +#include "PPCGenSubtargetInfo.inc" + // GCC #defines PPC on Linux but we use it as our namespace name #undef PPC namespace llvm { +class StringRef; namespace PPC { // -m directive values. enum { DIR_NONE, DIR_32, - DIR_601, - DIR_602, - DIR_603, + DIR_440, + DIR_601, + DIR_602, + DIR_603, DIR_7400, - DIR_750, - DIR_970, - DIR_64 + DIR_750, + DIR_970, + DIR_A2, + DIR_E500mc, + DIR_E5500, + DIR_PWR3, + DIR_PWR4, + DIR_PWR5, + DIR_PWR5X, + DIR_PWR6, + DIR_PWR6X, + DIR_PWR7, + DIR_64 }; } -class Module; class GlobalValue; class TargetMachine; - -class PPCSubtarget : public TargetSubtarget { -public: - enum AsmWriterFlavorTy { - OldMnemonic, NewMnemonic, Unset - }; + +class PPCSubtarget : public PPCGenSubtargetInfo { protected: - const TargetMachine &TM; - /// 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; - + /// Which cpu directive was used. unsigned DarwinDirective; - /// AsmFlavor - Which PPC asm dialect to use. - AsmWriterFlavorTy AsmFlavor; - /// Used by the ISel to turn in optimizations for POWER4-derived architectures - bool IsGigaProcessor; + bool HasMFOCRF; bool Has64BitSupport; bool Use64BitRegs; + bool UseCRBits; bool IsPPC64; bool HasAltivec; + bool HasQPX; + bool HasVSX; + bool HasFCPSGN; bool HasFSQRT; + bool HasFRE, HasFRES, HasFRSQRTE, HasFRSQRTES; + bool HasRecipPrec; bool HasSTFIWX; + bool HasLFIWAX; + bool HasFPRND; + bool HasFPCVT; + bool HasISEL; + bool HasPOPCNTD; + bool HasLDBRX; + bool IsBookE; + bool DeprecatedMFTB; + bool DeprecatedDST; bool HasLazyResolverStubs; - - /// DarwinVers - Nonzero if this is a darwin platform. Otherwise, the numeric - /// version of the platform, e.g. 8 = 10.4 (Tiger), 9 = 10.5 (Leopard), etc. - unsigned char DarwinVers; // Is any darwin-ppc platform. + bool IsJITCodeModel; + bool IsLittleEndian; + + /// TargetTriple - What processor and OS we're targeting. + Triple TargetTriple; + + /// OptLevel - What default optimization level we're emitting code for. + CodeGenOpt::Level OptLevel; + + PPCFrameLowering FrameLowering; + const DataLayout DL; + PPCInstrInfo InstrInfo; + PPCJITInfo JITInfo; + PPCTargetLowering TLInfo; + PPCSelectionDAGInfo TSInfo; + public: /// This constructor initializes the data members to match that - /// of the specified module. + /// of the specified triple. /// - PPCSubtarget(const TargetMachine &TM, const Module &M, - const std::string &FS, bool is64Bit); - - /// ParseSubtargetFeatures - Parses features string setting specified + PPCSubtarget(const std::string &TT, const std::string &CPU, + const std::string &FS, PPCTargetMachine &TM, bool is64Bit, + CodeGenOpt::Level OptLevel); + + /// ParseSubtargetFeatures - Parses features string setting specified /// subtarget options. Definition of function is auto generated by tblgen. - void ParseSubtargetFeatures(const std::string &FS, const std::string &CPU); - + void ParseSubtargetFeatures(StringRef CPU, StringRef FS); + /// SetJITMode - This is called to inform the subtarget info that we are /// producing code for the JIT. void SetJITMode(); @@ -96,60 +135,109 @@ public: /// stack frame on entry to the function and which must be maintained by every /// function for this subtarget. unsigned getStackAlignment() const { return StackAlignment; } - + /// getDarwinDirective - Returns the -m directive specified for the cpu. /// unsigned getDarwinDirective() const { return DarwinDirective; } - - /// getInstrItins - Return the instruction itineraies based on subtarget + + /// getInstrItins - Return the instruction itineraries based on subtarget /// selection. const InstrItineraryData &getInstrItineraryData() const { return InstrItins; } - /// getTargetDataString - Return the pointer size and type alignment - /// properties of this subtarget. - const char *getTargetDataString() const { - return isPPC64() ? "E-p:64:64-f64:32:64-i64:32:64-f128:64:128" - : "E-p:32:32-f64:32:64-i64:32:64-f128:64:128"; - } + const PPCFrameLowering *getFrameLowering() const { return &FrameLowering; } + const DataLayout *getDataLayout() const { return &DL; } + const PPCInstrInfo *getInstrInfo() const { return &InstrInfo; } + PPCJITInfo *getJITInfo() { return &JITInfo; } + const PPCTargetLowering *getTargetLowering() const { return &TLInfo; } + const PPCSelectionDAGInfo *getSelectionDAGInfo() const { return &TSInfo; } + + /// initializeSubtargetDependencies - Initializes using a CPU and feature string + /// so that we can use initializer lists for subtarget initialization. + PPCSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS); + /// \brief Reset the features for the PowerPC target. + void resetSubtargetFeatures(const MachineFunction *MF) override; +private: + void initializeEnvironment(); + void resetSubtargetFeatures(StringRef CPU, StringRef FS); + +public: /// isPPC64 - Return true if we are generating code for 64-bit pointer mode. /// bool isPPC64() const { return IsPPC64; } - + /// has64BitSupport - Return true if the selected CPU supports 64-bit /// instructions, regardless of whether we are in 32-bit or 64-bit mode. bool has64BitSupport() const { return Has64BitSupport; } - + /// use64BitRegs - Return true if in 64-bit mode or if we should use 64-bit /// registers in 32-bit mode when possible. This can only true if /// has64BitSupport() returns true. bool use64BitRegs() const { return Use64BitRegs; } - + + /// useCRBits - Return true if we should store and manipulate i1 values in + /// the individual condition register bits. + bool useCRBits() const { return UseCRBits; } + /// hasLazyResolverStub - Return true if accesses to the specified global have /// to go through a dyld lazy resolution stub. This means that an extra load /// is required to get the address of the global. - bool hasLazyResolverStub(const GlobalValue *GV) const; - + bool hasLazyResolverStub(const GlobalValue *GV, + const TargetMachine &TM) const; + + // isJITCodeModel - True if we're generating code for the JIT + bool isJITCodeModel() const { return IsJITCodeModel; } + + // isLittleEndian - True if generating little-endian code + bool isLittleEndian() const { return IsLittleEndian; } + // Specific obvious features. + bool hasFCPSGN() const { return HasFCPSGN; } bool hasFSQRT() const { return HasFSQRT; } + bool hasFRE() const { return HasFRE; } + bool hasFRES() const { return HasFRES; } + bool hasFRSQRTE() const { return HasFRSQRTE; } + bool hasFRSQRTES() const { return HasFRSQRTES; } + bool hasRecipPrec() const { return HasRecipPrec; } bool hasSTFIWX() const { return HasSTFIWX; } + bool hasLFIWAX() const { return HasLFIWAX; } + bool hasFPRND() const { return HasFPRND; } + bool hasFPCVT() const { return HasFPCVT; } bool hasAltivec() const { return HasAltivec; } - bool isGigaProcessor() const { return IsGigaProcessor; } + bool hasQPX() const { return HasQPX; } + bool hasVSX() const { return HasVSX; } + bool hasMFOCRF() const { return HasMFOCRF; } + bool hasISEL() const { return HasISEL; } + bool hasPOPCNTD() const { return HasPOPCNTD; } + bool hasLDBRX() const { return HasLDBRX; } + bool isBookE() const { return IsBookE; } + bool isDeprecatedMFTB() const { return DeprecatedMFTB; } + bool isDeprecatedDST() const { return DeprecatedDST; } + + const Triple &getTargetTriple() const { return TargetTriple; } /// isDarwin - True if this is any darwin platform. - bool isDarwin() const { return DarwinVers != 0; } - /// isDarwin - True if this is darwin9 (leopard, 10.5) or above. - bool isDarwin9() const { return DarwinVers >= 9; } - - /// getDarwinVers - Return the darwin version number, 8 = tiger, 9 = leopard. - unsigned getDarwinVers() const { return DarwinVers; } - - bool isMachoABI() const { return isDarwin() || IsPPC64; } - bool isELF32_ABI() const { return !isDarwin() && !IsPPC64; } - - unsigned getAsmFlavor() const { - return AsmFlavor != Unset ? unsigned(AsmFlavor) : 0; - } + bool isDarwin() const { return TargetTriple.isMacOSX(); } + /// isBGQ - True if this is a BG/Q platform. + bool isBGQ() const { return TargetTriple.getVendor() == Triple::BGQ; } + + bool isDarwinABI() const { return isDarwin(); } + bool isSVR4ABI() const { return !isDarwin(); } + + /// enablePostRAScheduler - True at 'More' optimization. + bool enablePostRAScheduler(CodeGenOpt::Level OptLevel, + TargetSubtargetInfo::AntiDepBreakMode& Mode, + RegClassVector& CriticalPathRCs) const override; + + bool enableEarlyIfConversion() const override { return hasISEL(); } + + // Scheduling customization. + bool enableMachineScheduler() const override; + void overrideSchedPolicy(MachineSchedPolicy &Policy, + MachineInstr *begin, + MachineInstr *end, + unsigned NumRegionInstrs) const override; + bool useAA() const override; }; } // End llvm namespace