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//=====-- NVPTXSubtarget.h - Define Subtarget for the NVPTX ---*- C++ -*--====//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the NVPTX specific subclass of TargetSubtarget.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_NVPTX_NVPTXSUBTARGET_H
#define LLVM_LIB_TARGET_NVPTX_NVPTXSUBTARGET_H
#include "NVPTX.h"
#include "NVPTXFrameLowering.h"
#include "NVPTXISelLowering.h"
#include "NVPTXInstrInfo.h"
#include "NVPTXRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DataLayout.h"
#include <string>
#define GET_SUBTARGETINFO_HEADER
#include "NVPTXGenSubtargetInfo.inc"
namespace llvm {
class NVPTXSubtarget : public NVPTXGenSubtargetInfo {
virtual void anchor();
std::string TargetName;
// PTX version x.y is represented as 10*x+y, e.g. 3.1 == 31
unsigned PTXVersion;
// SM version x.y is represented as 10*x+y, e.g. 3.1 == 31
unsigned int SmVersion;
const NVPTXTargetMachine &TM;
NVPTXInstrInfo InstrInfo;
NVPTXTargetLowering TLInfo;
SelectionDAGTargetInfo TSInfo;
// NVPTX does not have any call stack frame, but need a NVPTX specific
// FrameLowering class because TargetFrameLowering is abstract.
NVPTXFrameLowering FrameLowering;
protected:
// Processor supports scoped atomic operations.
bool HasAtomScope;
public:
/// This constructor initializes the data members to match that
/// of the specified module.
///
NVPTXSubtarget(const Triple &TT, const std::string &CPU,
const std::string &FS, const NVPTXTargetMachine &TM);
const TargetFrameLowering *getFrameLowering() const override {
return &FrameLowering;
}
const NVPTXInstrInfo *getInstrInfo() const override { return &InstrInfo; }
const NVPTXRegisterInfo *getRegisterInfo() const override {
return &InstrInfo.getRegisterInfo();
}
const NVPTXTargetLowering *getTargetLowering() const override {
return &TLInfo;
}
const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
return &TSInfo;
}
bool hasBrkPt() const { return SmVersion >= 11; }
bool hasAtomRedG32() const { return SmVersion >= 11; }
bool hasAtomRedS32() const { return SmVersion >= 12; }
bool hasAtomRedG64() const { return SmVersion >= 12; }
bool hasAtomRedS64() const { return SmVersion >= 20; }
bool hasAtomRedGen32() const { return SmVersion >= 20; }
bool hasAtomRedGen64() const { return SmVersion >= 20; }
bool hasAtomAddF32() const { return SmVersion >= 20; }
bool hasAtomAddF64() const { return SmVersion >= 60; }
bool hasAtomScope() const { return HasAtomScope; }
bool hasAtomBitwise64() const { return SmVersion >= 32; }
bool hasAtomMinMax64() const { return SmVersion >= 32; }
bool hasVote() const { return SmVersion >= 12; }
bool hasDouble() const { return SmVersion >= 13; }
bool reqPTX20() const { return SmVersion >= 20; }
bool hasF32FTZ() const { return SmVersion >= 20; }
bool hasFMAF32() const { return SmVersion >= 20; }
bool hasFMAF64() const { return SmVersion >= 13; }
bool hasLDG() const { return SmVersion >= 32; }
bool hasLDU() const { return ((SmVersion >= 20) && (SmVersion < 30)); }
bool hasGenericLdSt() const { return SmVersion >= 20; }
inline bool hasHWROT32() const { return SmVersion >= 32; }
inline bool hasSWROT32() const {
return ((SmVersion >= 20) && (SmVersion < 32));
}
inline bool hasROT32() const { return hasHWROT32() || hasSWROT32(); }
inline bool hasROT64() const { return SmVersion >= 20; }
bool hasImageHandles() const;
bool hasFP16Math() const { return SmVersion >= 53; }
bool allowFP16Math() const;
unsigned int getSmVersion() const { return SmVersion; }
std::string getTargetName() const { return TargetName; }
unsigned getPTXVersion() const { return PTXVersion; }
NVPTXSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
};
} // End llvm namespace
#endif
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