1 //===-- SystemZSubtarget.h - SystemZ subtarget information -----*- C++ -*--===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the SystemZ specific subclass of TargetSubtargetInfo.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H
15 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H
17 #include "SystemZFrameLowering.h"
18 #include "SystemZISelLowering.h"
19 #include "SystemZInstrInfo.h"
20 #include "SystemZRegisterInfo.h"
21 #include "SystemZSelectionDAGInfo.h"
22 #include "llvm/IR/DataLayout.h"
23 #include "llvm/ADT/Triple.h"
24 #include "llvm/Target/TargetSubtargetInfo.h"
27 #define GET_SUBTARGETINFO_HEADER
28 #include "SystemZGenSubtargetInfo.inc"
34 class SystemZSubtarget : public SystemZGenSubtargetInfo {
35 virtual void anchor();
38 bool HasLoadStoreOnCond;
41 bool HasFastSerialization;
42 bool HasInterlockedAccess1;
47 SystemZInstrInfo InstrInfo;
48 SystemZTargetLowering TLInfo;
49 SystemZSelectionDAGInfo TSInfo;
50 SystemZFrameLowering FrameLowering;
52 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU,
55 SystemZSubtarget(const std::string &TT, const std::string &CPU,
56 const std::string &FS, const TargetMachine &TM);
58 const TargetFrameLowering *getFrameLowering() const override {
59 return &FrameLowering;
61 const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; }
62 const DataLayout *getDataLayout() const override { return &DL; }
63 const SystemZRegisterInfo *getRegisterInfo() const override {
64 return &InstrInfo.getRegisterInfo();
66 const SystemZTargetLowering *getTargetLowering() const override {
69 const TargetSelectionDAGInfo *getSelectionDAGInfo() const override {
73 // This is important for reducing register pressure in vector code.
74 bool useAA() const override { return true; }
76 // Automatically generated by tblgen.
77 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
79 // Return true if the target has the distinct-operands facility.
80 bool hasDistinctOps() const { return HasDistinctOps; }
82 // Return true if the target has the load/store-on-condition facility.
83 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; }
85 // Return true if the target has the high-word facility.
86 bool hasHighWord() const { return HasHighWord; }
88 // Return true if the target has the floating-point extension facility.
89 bool hasFPExtension() const { return HasFPExtension; }
91 // Return true if the target has the fast-serialization facility.
92 bool hasFastSerialization() const { return HasFastSerialization; }
94 // Return true if the target has interlocked-access facility 1.
95 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; }
97 // Return true if GV can be accessed using LARL for reloc model RM
99 bool isPC32DBLSymbol(const GlobalValue *GV, Reloc::Model RM,
100 CodeModel::Model CM) const;
102 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
104 } // end namespace llvm