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//===-- SystemZSubtarget.h - SystemZ subtarget information -----*- C++ -*--===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares the SystemZ specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H
#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H
#include "SystemZFrameLowering.h"
#include "SystemZISelLowering.h"
#include "SystemZInstrInfo.h"
#include "SystemZRegisterInfo.h"
#include "SystemZSelectionDAGInfo.h"
#include "llvm/ADT/Triple.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DataLayout.h"
#include <string>
#define GET_SUBTARGETINFO_HEADER
#include "SystemZGenSubtargetInfo.inc"
namespace llvm {
class GlobalValue;
class StringRef;
class SystemZSubtarget : public SystemZGenSubtargetInfo {
virtual void anchor();
protected:
bool HasDistinctOps;
bool HasLoadStoreOnCond;
bool HasHighWord;
bool HasFPExtension;
bool HasPopulationCount;
bool HasMessageSecurityAssist3;
bool HasMessageSecurityAssist4;
bool HasResetReferenceBitsMultiple;
bool HasFastSerialization;
bool HasInterlockedAccess1;
bool HasMiscellaneousExtensions;
bool HasExecutionHint;
bool HasLoadAndTrap;
bool HasTransactionalExecution;
bool HasProcessorAssist;
bool HasDFPZonedConversion;
bool HasEnhancedDAT2;
bool HasVector;
bool HasLoadStoreOnCond2;
bool HasLoadAndZeroRightmostByte;
bool HasMessageSecurityAssist5;
bool HasDFPPackedConversion;
bool HasMiscellaneousExtensions2;
bool HasGuardedStorage;
bool HasMessageSecurityAssist7;
bool HasMessageSecurityAssist8;
bool HasVectorEnhancements1;
bool HasVectorPackedDecimal;
bool HasInsertReferenceBitsMultiple;
bool HasMiscellaneousExtensions3;
bool HasMessageSecurityAssist9;
bool HasVectorEnhancements2;
bool HasVectorPackedDecimalEnhancement;
bool HasEnhancedSort;
bool HasDeflateConversion;
bool HasVectorPackedDecimalEnhancement2;
bool HasNNPAssist;
bool HasBEAREnhancement;
bool HasResetDATProtection;
bool HasProcessorActivityInstrumentation;
bool HasSoftFloat;
private:
Triple TargetTriple;
std::unique_ptr<SystemZCallingConventionRegisters> SpecialRegisters;
SystemZInstrInfo InstrInfo;
SystemZTargetLowering TLInfo;
SystemZSelectionDAGInfo TSInfo;
std::unique_ptr<const SystemZFrameLowering> FrameLowering;
SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU,
StringRef FS);
SystemZCallingConventionRegisters *initializeSpecialRegisters(void);
public:
SystemZSubtarget(const Triple &TT, const std::string &CPU,
const std::string &FS, const TargetMachine &TM);
SystemZCallingConventionRegisters *getSpecialRegisters() const {
assert(SpecialRegisters && "Unsupported SystemZ calling convention");
return SpecialRegisters.get();
}
template <class SR> SR &getSpecialRegisters() const {
return *static_cast<SR *>(getSpecialRegisters());
}
const TargetFrameLowering *getFrameLowering() const override {
return FrameLowering.get();
}
template <class TFL> const TFL *getFrameLowering() const {
return static_cast<const TFL *>(getFrameLowering());
}
const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; }
const SystemZRegisterInfo *getRegisterInfo() const override {
return &InstrInfo.getRegisterInfo();
}
const SystemZTargetLowering *getTargetLowering() const override {
return &TLInfo;
}
const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
return &TSInfo;
}
// True if the subtarget should run MachineScheduler after aggressive
// coalescing. This currently replaces the SelectionDAG scheduler with the
// "source" order scheduler.
bool enableMachineScheduler() const override { return true; }
// This is important for reducing register pressure in vector code.
bool useAA() const override { return true; }
// Always enable the early if-conversion pass.
bool enableEarlyIfConversion() const override { return true; }
// Enable tracking of subregister liveness in register allocator.
bool enableSubRegLiveness() const override;
// Automatically generated by tblgen.
void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
// Return true if the target has the distinct-operands facility.
bool hasDistinctOps() const { return HasDistinctOps; }
// Return true if the target has the load/store-on-condition facility.
bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; }
// Return true if the target has the load/store-on-condition facility 2.
bool hasLoadStoreOnCond2() const { return HasLoadStoreOnCond2; }
// Return true if the target has the high-word facility.
bool hasHighWord() const { return HasHighWord; }
// Return true if the target has the floating-point extension facility.
bool hasFPExtension() const { return HasFPExtension; }
// Return true if the target has the population-count facility.
bool hasPopulationCount() const { return HasPopulationCount; }
// Return true if the target has the message-security-assist
// extension facility 3.
bool hasMessageSecurityAssist3() const { return HasMessageSecurityAssist3; }
// Return true if the target has the message-security-assist
// extension facility 4.
bool hasMessageSecurityAssist4() const { return HasMessageSecurityAssist4; }
// Return true if the target has the reset-reference-bits-multiple facility.
bool hasResetReferenceBitsMultiple() const {
return HasResetReferenceBitsMultiple;
}
// Return true if the target has the fast-serialization facility.
bool hasFastSerialization() const { return HasFastSerialization; }
// Return true if the target has interlocked-access facility 1.
bool hasInterlockedAccess1() const { return HasInterlockedAccess1; }
// Return true if the target has the miscellaneous-extensions facility.
bool hasMiscellaneousExtensions() const {
return HasMiscellaneousExtensions;
}
// Return true if the target has the execution-hint facility.
bool hasExecutionHint() const { return HasExecutionHint; }
// Return true if the target has the load-and-trap facility.
bool hasLoadAndTrap() const { return HasLoadAndTrap; }
// Return true if the target has the transactional-execution facility.
bool hasTransactionalExecution() const { return HasTransactionalExecution; }
// Return true if the target has the processor-assist facility.
bool hasProcessorAssist() const { return HasProcessorAssist; }
// Return true if the target has the DFP zoned-conversion facility.
bool hasDFPZonedConversion() const { return HasDFPZonedConversion; }
// Return true if the target has the enhanced-DAT facility 2.
bool hasEnhancedDAT2() const { return HasEnhancedDAT2; }
// Return true if the target has the load-and-zero-rightmost-byte facility.
bool hasLoadAndZeroRightmostByte() const {
return HasLoadAndZeroRightmostByte;
}
// Return true if the target has the message-security-assist
// extension facility 5.
bool hasMessageSecurityAssist5() const { return HasMessageSecurityAssist5; }
// Return true if the target has the DFP packed-conversion facility.
bool hasDFPPackedConversion() const { return HasDFPPackedConversion; }
// Return true if the target has the vector facility.
bool hasVector() const { return HasVector; }
// Return true if the target has the miscellaneous-extensions facility 2.
bool hasMiscellaneousExtensions2() const {
return HasMiscellaneousExtensions2;
}
// Return true if the target has the guarded-storage facility.
bool hasGuardedStorage() const { return HasGuardedStorage; }
// Return true if the target has the message-security-assist
// extension facility 7.
bool hasMessageSecurityAssist7() const { return HasMessageSecurityAssist7; }
// Return true if the target has the message-security-assist
// extension facility 8.
bool hasMessageSecurityAssist8() const { return HasMessageSecurityAssist8; }
// Return true if the target has the vector-enhancements facility 1.
bool hasVectorEnhancements1() const { return HasVectorEnhancements1; }
// Return true if the target has the vector-packed-decimal facility.
bool hasVectorPackedDecimal() const { return HasVectorPackedDecimal; }
// Return true if the target has the insert-reference-bits-multiple facility.
bool hasInsertReferenceBitsMultiple() const {
return HasInsertReferenceBitsMultiple;
}
// Return true if the target has the miscellaneous-extensions facility 3.
bool hasMiscellaneousExtensions3() const {
return HasMiscellaneousExtensions3;
}
// Return true if the target has the message-security-assist
// extension facility 9.
bool hasMessageSecurityAssist9() const { return HasMessageSecurityAssist9; }
// Return true if the target has the vector-enhancements facility 2.
bool hasVectorEnhancements2() const { return HasVectorEnhancements2; }
// Return true if the target has the vector-packed-decimal
// enhancement facility.
bool hasVectorPackedDecimalEnhancement() const {
return HasVectorPackedDecimalEnhancement;
}
// Return true if the target has the enhanced-sort facility.
bool hasEnhancedSort() const { return HasEnhancedSort; }
// Return true if the target has the deflate-conversion facility.
bool hasDeflateConversion() const { return HasDeflateConversion; }
// Return true if the target has the vector-packed-decimal
// enhancement facility 2.
bool hasVectorPackedDecimalEnhancement2() const {
return HasVectorPackedDecimalEnhancement2;
}
// Return true if the target has the NNP-assist facility.
bool hasNNPAssist() const { return HasNNPAssist; }
// Return true if the target has the BEAR-enhancement facility.
bool hasBEAREnhancement() const { return HasBEAREnhancement; }
// Return true if the target has the reset-DAT-protection facility.
bool hasResetDATProtection() const { return HasResetDATProtection; }
// Return true if the target has the processor-activity-instrumentation
// facility.
bool hasProcessorActivityInstrumentation() const {
return HasProcessorActivityInstrumentation;
}
// Return true if soft float should be used.
bool hasSoftFloat() const { return HasSoftFloat; }
// Return true if GV can be accessed using LARL for reloc model RM
// and code model CM.
bool isPC32DBLSymbol(const GlobalValue *GV, CodeModel::Model CM) const;
bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
// Returns TRUE if we are generating GOFF object code
bool isTargetGOFF() const { return TargetTriple.isOSBinFormatGOFF(); }
// Returns TRUE if we are using XPLINK64 linkage convention
bool isTargetXPLINK64() const { return (isTargetGOFF() && isTargetzOS()); }
// Returns TRUE if we are generating code for a s390x machine running zOS
bool isTargetzOS() const { return TargetTriple.isOSzOS(); }
};
} // end namespace llvm
#endif