-//=====-- PPCSubtarget.h - Define Subtarget for the PPC -------*- C++ -*--====//
+//===-- PPCSubtarget.h - Define Subtarget for the PPC ----------*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Nate Begeman and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
-// 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 "llvm/ADT/Triple.h"
+#include "llvm/MC/MCInstrItineraries.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
#include <string>
+#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 IsPPC64;
bool HasAltivec;
+ bool HasQPX;
+ bool HasVSX;
+ bool HasFCPSGN;
bool HasFSQRT;
+ bool HasFRE, HasFRES, HasFRSQRTE, HasFRSQRTES;
+ bool HasRecipPrec;
bool HasSTFIWX;
- bool IsDarwin;
+ bool HasLFIWAX;
+ bool HasFPRND;
+ bool HasFPCVT;
+ bool HasISEL;
+ bool HasPOPCNTD;
+ bool HasLDBRX;
+ bool IsBookE;
+ bool DeprecatedMFTB;
+ bool DeprecatedDST;
bool HasLazyResolverStubs;
+ bool IsJITCodeModel;
+ bool IsLittleEndian;
+
+ /// TargetTriple - What processor and OS we're targeting.
+ Triple TargetTriple;
+
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,
+ PPCSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS, bool is64Bit);
-
- /// ParseSubtargetFeatures - Parses features string setting specified
+
+ /// 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();
/// 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 itineraies 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";
- }
+ /// \brief Reset the features for the PowerPC target.
+ virtual void resetSubtargetFeatures(const MachineFunction *MF);
+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; }
-
+
/// 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 isDarwin() const { return IsDarwin; }
-
- bool isMachoABI() const { return IsDarwin || IsPPC64; }
- bool isELF32_ABI() const { return !IsDarwin && !IsPPC64; }
-
- unsigned getAsmFlavor() const {
- return AsmFlavor != Unset ? unsigned(AsmFlavor) : 0;
- }
+ bool hasQPX() const { return HasQPX; }
+ 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 TargetTriple.isMacOSX(); }
+ /// isBGP - True if this is a BG/P platform.
+ bool isBGP() const { return TargetTriple.getVendor() == Triple::BGP; }
+ /// 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;
+
+ // Scheduling customization.
+ bool enableMachineScheduler() const;
+ void overrideSchedPolicy(MachineSchedPolicy &Policy,
+ MachineInstr *begin,
+ MachineInstr *end,
+ unsigned NumRegionInstrs) const;
+ bool useAA() const;
};
} // End llvm namespace
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