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 HasPopulationCount;
42 bool HasFastSerialization;
43 bool HasInterlockedAccess1;
44 bool HasMiscellaneousExtensions;
48 SystemZInstrInfo InstrInfo;
49 SystemZTargetLowering TLInfo;
50 SystemZSelectionDAGInfo TSInfo;
51 SystemZFrameLowering FrameLowering;
53 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU,
56 SystemZSubtarget(const std::string &TT, const std::string &CPU,
57 const std::string &FS, const TargetMachine &TM);
59 const TargetFrameLowering *getFrameLowering() const override {
60 return &FrameLowering;
62 const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; }
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 population-count facility.
92 bool hasPopulationCount() const { return HasPopulationCount; }
94 // Return true if the target has the fast-serialization facility.
95 bool hasFastSerialization() const { return HasFastSerialization; }
97 // Return true if the target has interlocked-access facility 1.
98 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; }
100 // Return true if the target has the miscellaneous-extensions facility.
101 bool hasMiscellaneousExtensions() const {
102 return HasMiscellaneousExtensions;
105 // Return true if GV can be accessed using LARL for reloc model RM
106 // and code model CM.
107 bool isPC32DBLSymbol(const GlobalValue *GV, Reloc::Model RM,
108 CodeModel::Model CM) const;
110 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
112 } // end namespace llvm